That is a question that he refuses to answer. All the evidence indicates that he has not.I wonder if Eikminierro has ever flown a plane.
BJC
That is a question that he refuses to answer. All the evidence indicates that he has not.I wonder if Eikminierro has ever flown a plane.
I would not protest a real improvement, and fuel injection is one means of doing that. The reason I emphasize training, training, training is that most of us homebuilders cannot afford upscale engines that use fuel injection, whether it's mechanical or EFI. Many of us can barely afford a basic airplane and many more who want to fly will never do it unless it's a basic, carbureted airplane. That's why we need to understand carb ice, and it really is not difficult to do so. There is simply a resistance to more training and study. If old airplanes keep on flying, the buyers need to know this stuff. That's all there is to it. And that includes instructors as well, many of who do not understand carb ice and many other aspects of of physics. As an mechanic as well as an instructor, I used to hold annual refreshers on many such things just to get our instructors to a level that was readily recognizedYou are the same person who thought it acceptable for people to die because you feel they should have taken more training on "carb icing" procedures and recognition. In the example discussed on a previous thread the pilot who died in the icing incident was a professional flight instructor. How much more training did he need ? He was teaching a student at the time. Not all flight instructors make the right decision, neither do all pilots, definitely not all students. [/U]
I answered that question a long time ago, y'all must have missed it. Do either of you have any comments that are related to the subject at hand, such as why its impossible to build an airplane that might save someone from their own mistakes, or explain how the laws of physics aren't being followed, how control becomes more difficult at slow speeds,....you know,on topic related stuff someone can learn from rather than personal innuendo. A lot of people have actually taken time to try to make this a decent thread where people can view a difference of opinion and decide what they wish to gain from it. I don't see any real contribution by either of you that might be helpful to anyone. So far, no one has explained to me why the ability to not just retain control, but to have extroadinary control at extremely slow speeds is not beneficial. Secondly, no one has explaned why the ability of an airplane to maintain lift and a safe margin above stall speed even if inadvertantly cross-controlled is not advantageous to any pilot. How bout taking all that aeronautical expertise you two profess and just write something that explains those two topics to me. Don't wander off into other veins, simply tell me why those two premises are incorrect.That is a question that he refuses to answer. All the evidence indicates that he has not.
BJC
No, I agree with you that safer airplanes will never completely relieve the problem, but they can help. No matter how much training is given, there will still be mistakes made....because we are human. The answer is that both can help and if used in concert with one another we can probably take safety standards even higher. I just think its wrong to dis something which is done to obtain a desired flying characteristic (slow/short landing ability) when its discovered that it has a side benefit that improves safety. Virtually every evolutionary change in general aviation design has been incorporated with safety factors as a major design component. I'm with you when the govt mandates expensive and costly features be added that price people out of flying, or make cars and houses unaffordable to people. Various OSHA policies that drive businesses to close and the loss of jobs because safety regs and practices are oppressive. I'm with you 100% on that type stuff. On the other hand I don't think something like the cost of a fixed slat added to a wing is a financial burden. As for the carb icing problems, I have wondered if some type of ultrasonic device could not be adapted that would shatter ice quickly (and cheaply) couldn't be adapted to aero carbs. Then if a pilot erred that had something other than slower reacting heat that could help them. Technology is a wonderful thing and shouldn't be stimied when it can be adapted cheaply and easily to existing products. On the other hand, I would not want to see the FAA madate that everyone had to buy a brand new $1000 carb either.Dan Thomas=
I still maintain that "safer" airplanes won't do the trick. Better training will go much farther and in a much more affordable manner. Modern light airplanes can't get much safer without making them totally unaffordable and impractical. There are physical limits, you know.
In and of themselves, in isolation, there's nothing wrong with either of them. The issue is that virtually nothing in airplane design happens "in isolation." For every benefit, there's a cost. Large control surfaces are heavy, draggy, and require larger control forces. For something like the Storch and its replicas, where their flying speed is so low that control forces even from very large control surfaces are minimal, having that level of control power isn't an issue and indeed, for the design mission, it's a necessity. Put those same size control surfaces on a Glasair III or the faster RV's, it's almost certain that the pilot would no longer be able to move the controls when flying at cruise speeds, or would need boosted controls. The former is dangerous, the latter is a huge weight gain, which drives the takeoff weight of the aircraft quite a lot higher, as a larger engine, fuel tanks, and therefore structure are required to maintain the same performance.... 1. Tell me why the ability to have extrodinary controllability at extremely slow speeds is not a beneficial or desirable feature.
2. Tell me why the ability to maintain a safe margin above stall speed when inadvertently cross-controlled is a bad design feature. ...
Avoiding the question again isn't helping any. Care to link the post? Or simply answer the question here?I answered that question a long time ago, y'all must have missed it.
Lower stall speeds are nice, no one here has argued any differently - but they come at a cost that is not worth it to the majority of pilots. If we wanted a low stall speed, we would get a plane with one. It's not beneficial to most to show up at the pancake breakfast at lunch time, or have to leave a week early to make it to Oshkosh. If you want a really low stall speed, get a powered parachute.1. Tell me why the ability to have extrodinary controllability at extremely slow speeds is not a beneficial or desirable feature.
You have this backwards. It's not even a design feature, nearly every single plane ever designed with ailerons and rudder controls can be cross controlled if it has a safe margin above stall speed. That's what a safe margin is. The Storch does not magically create a safe margin above stall speed once it's cross controlled. If it is cross controlled too close to stall, it will stall and try to enter a spin, same as any other plane.2. Tell me why the ability to maintain a safe margin above stall speed when inadvertently cross-controlled is a bad design feature.
Here's an opportunity to realize that when everyone, including those who have extensive expertise in the field you are discussing, the science of the field, the current & past authorities, and even the originators of the field, disagrees with your uninformed opinion, then you're probably wrong, and need to rethink your premise rather than digging in your heels and trying to stretch the argument to fit your flawed conclusions. Flat turns are vastly inferior and have a larger turning radius than a banked turn at the same speed. The only thing that allows any plane to do a flat turn is margin over stall speed, and nearly every plane can do one with margin over stall speed. Many people have patiently related these things, then gave up and left this thread, not because they were proved wrong, but from exasperation caused by one individual persisting in jumping to unjustified conclusions, arguing against what no one has claimed, and refusing to learn from those kind enough to attempt to teach voluntarily. By steadfast arguing while refusing to learn, an individual can discourage the experts from voluntarily sharing their knowledge in the future, and so the world becomes a worse place for it.Here is your opportunity to contribute something worthwhile to this thread rather than one line commentary that benefits no one.
:gig:I answered that question a long time ago, y'all must have missed it. Do either of you have any comments that are related to the subject at hand, such as why its impossible to build an airplane that might save someone from their own mistakes, or explain how the laws of physics aren't being followed, how control becomes more difficult at slow speeds,....you know,on topic related stuff someone can learn from rather than personal innuendo. A lot of people have actually taken time to try to make this a decent thread where people can view a difference of opinion and decide what they wish to gain from it. I don't see any real contribution by either of you that might be helpful to anyone. So far, no one has explained to me why the ability to not just retain control, but to have extroadinary control at extremely slow speeds is not beneficial. Secondly, no one has explaned why the ability of an airplane to maintain lift and a safe margin above stall speed even if inadvertantly cross-controlled is not advantageous to any pilot. How bout taking all that aeronautical expertise you two profess and just write something that explains those two topics to me. Don't wander off into other veins, simply tell me why those two premises are incorrect.
Remember the first time you did slow speed manuevering and how mushy the controls became. Now consider what it is like to be flying at appx half that speed and still having control.
1. Tell me why the ability to have extrodinary controllability at extremely slow speeds is not a beneficial or desirable feature.
2. Tell me why the ability to maintain a safe margin above stall speed when inadvertently cross-controlled is a bad design feature.
Those are the key points here, and they were merely demonstrated by the designer and several other pilots by making a flat turn as an exhibition of controllability.
Here is your opportunity to contribute something worthwhile to this thread rather than one line commentary that benefits no one.
I'm still at a loss how it improves safety (I'd like to at least see the data) but here goes:I just think its wrong to dis something which is done to obtain a desired flying characteristic (slow/short landing ability) when its discovered that it has a side benefit that improves safety.
On the other hand I don't think something like the cost of a fixed slat added to a wing is a financial burden.
Refresh our short memories by posting your experience.I answered that question a long time ago, y'all must have missed it.
So far, no one has explained to me why the ability to not just retain control, but to have extroadinary control at extremely slow speeds is not beneficial. Secondly, no one has explaned why the ability of an airplane to maintain lift and a safe margin above stall speed even if inadvertantly cross-controlled is not advantageous to any pilot.
Nope, not avoiding the question, I just figure that its really not a good idea to post personal information about ones self on the internet. I have found that no matter how innocently the information is presented there are people out there who find a way to exploit it As I said, once before in a moment of weakness I answered the question...I also make it a point not to ask others about their personal information. You would probably be surprised at how much information is available about yourself.12notes;414704]Avoiding the question again isn't helping any. Care to link the post? Or simply answer the question here?
I don't think a Hummel-Bird is going to set any speed records flying to Oshkosh and I don't think it has the range to make it without one or two refuelings, so how early do you plan to leave for Oshkosh? You certainly don't want to enter the "pattern" at Oshkosh when your fuel is marginal. Talking about individual preferences, some of us like to actually fly an airplane that has room for some clothing, and maybe the ability to sleep inside, especially in inclement weather. Individual choices encompass many different accomodations.....I'm sure you are familiar with the Turtle and the Hare scenario. That being said, there are airplanes like the Pegazair which will both make STOL landings....in fact extremely short and extremely slow STOL landings yet employ floating slats which allow cruise speeds well above 100 mph depending on engine choice. In fact I think some of them cruise just as fast as a Hummel-bird. So, opting for an airplane that provides the best of both worlds is an option to those that take the time to look.https://www.youtube.com/watch?v=6mWuhT3mjO8Lower stall speeds are nice, no one here has argued any differently - but they come at a cost that is not worth it to the majority of pilots. If we wanted a low stall speed, we would get a plane with one. It's not beneficial to most to show up at the pancake breakfast at lunch time, or have to leave a week early to make it to Oshkosh. If you want a really low stall speed, get a powered parachute.
Yep, if you are going fast enough you can most likely get away with cross-control, no big news flash there. The thing we are talking about here is at the other end of an airplanes mph scale. As long as you have a safe margin you may be fine, but as this usually takes place during an attempt to land, the plane that stays controllable longer (slower) is the plane with a better chance to survive.You have this backwards. It's not even a design feature, nearly every single plane ever designed with ailerons and rudder controls can be cross controlled if it has a safe margin above stall speed.
What you don't seem willing to admit is that there is a difference between being able to make a mistake and expect to get thru it and not get thru it. As an example, at the minimum landing speed of a Hummel-bird, a cross-control would probably be deadly. At that same speed and for sometime afterward, the Storch would be much more controllable and provide a better chance for survival. I put a much heavier value on that than being first in the pancake line.That's what a safe margin is. The Storch does not magically create a safe margin above stall speed once it's cross controlled. If it is cross controlled too close to stall, it will stall and try to enter a spin, same as any other plane.
Again you dwell on the flat turn as being the point of this thread. It is not the point.....it was merely a demonstration of the real point which controllabilty even when you make a mistake at slow/landing speeds. It is verified by videos of the airplane, recommendations by the designer of the airplane, and aviation journalist/pilots. I would think that the man who designed the airplane, flies it regularly, exhibits it, demonstrates it, and puts his life on the line in it just might have a better idea than you do about the capabilities of the airplane. Then that is backed up by independent experts with far more experience than you have who make their living reviewing and comparing airplanes. Perhaps if you had taken the time to read the information I presented earlier you might realize that these people actually have flown the airplane in question. So, it really isn't "just my opinion", its the documented opinion of experienced pilots.Here's an opportunity to realize that when everyone, including those who have extensive expertise in the field you are discussing, the science of the field, the current & past authorities, and even the originators of the field, disagrees with your uninformed opinion, then you're probably wrong, and need to rethink your premise rather than digging in your heels and trying to stretch the argument to fit your flawed conclusions. Flat turns are vastly inferior and have a larger turning radius than a banked turn at the same speed. The only thing that allows any plane to do a flat turn is margin over stall speed, and nearly every plane can do one with margin over stall speed. Many people have patiently related these things, then gave up and left this thread, not because they were proved wrong, but from exasperation caused by one individual persisting in jumping to unjustified conclusions, arguing against what no one has claimed, and refusing to learn from those kind enough to attempt to teach voluntarily. By steadfast arguing while refusing to learn, an individual can discourage the experts from voluntarily sharing their knowledge in the future, and so the world becomes a worse place for it.
:roll:Nope, not avoiding the question, I just figure that its really not a good idea to post personal information about ones self on the internet. I have found that no matter how innocently the information is presented there are people out there who find a way to exploit it As I said, once before in a moment of weakness I answered the question...I also make it a point not to ask others about their personal information. You would probably be surprised at how much information is available about yourself.
I don't think a Hummel-Bird is going to set any speed records flying to Oshkosh and I don't think it has the range to make it without one or two refuelings, so how early do you plan to leave for Oshkosh? You certainly don't want to enter the "pattern" at Oshkosh when your fuel is marginal. Talking about individual preferences, some of us like to actually fly an airplane that has room for some clothing, and maybe the ability to sleep inside, especially in inclement weather. Individual choices encompass many different accomodations.....I'm sure you are familiar with the Turtle and the Hare scenario. That being said, there are airplanes like the Pegazair which will both make STOL landings....in fact extremely short and extremely slow STOL landings yet employ floating slats which allow cruise speeds well above 100 mph depending on engine choice. In fact I think some of them cruise just as fast as a Hummel-bird. So, opting for an airplane that provides the best of both worlds is an option to those that take the time to look.https://www.youtube.com/watch?v=6mWuhT3mjO8
As for the pancake breakfast banter...a friend of mine built an O-320 powered RV-6. Beautiful airplane. His major complaint is that every time he flys it he goes so far so fast that he can't really enjoy local flying and if he is with any of his friends in spam cans, he has to wait for them. There is a lot to be said for enjoying flying at a slower pace when 90% of ones flying is local. How long do you think it will take for you to get from the airport in Louisville to the pancake breakfasts at warp speed ? Then there is the whole issue of survivability....and how high up that is on your scale of important things. Every pilot is taught to continually scan for possible landing sites. With your Hummel-Birds small wheels, minimal landing gear, only 2 cylinders, compact size,and higher stall/landing speeds, the chances of surviving an inflight problem are pretty slim. I have had two friends who have died in homebuilt airplane crashes, and three other friends who have been involved in engine outs and crashes. One of them had two engine outs in two separate airplanes. One of them they couldn't even open his casket. So, pardon me if I'm a little late getting to the pancake breakfasts, I have other priorities.
Yep, if you are going fast enough you can most likely get away with cross-control, no big news flash there. The thing we are talking about here is at the other end of an airplanes mph scale. As long as you have a safe margin you may be fine, but as this usually takes place during an attempt to land, the plane that stays controllable longer (slower) is the plane with a better chance to survive.
What you don't seem willing to admit is that there is a difference between being able to make a mistake and expect to get thru it and not get thru it. As an example, at the minimum landing speed of a Hummel-bird, a cross-control would probably be deadly. At that same speed and for sometime afterward, the Storch would be much more controllable and provide a better chance for survival. I put a much heavier value on that than being first in the pancake line.
Again you dwell on the flat turn as being the point of this thread. It is not the point.....it was merely a demonstration of the real point which controllabilty even when you make a mistake at slow/landing speeds. It is verified by videos of the airplane, recommendations by the designer of the airplane, and aviation journalist/pilots. I would think that the man who designed the airplane, flies it regularly, exhibits it, demonstrates it, and puts his life on the line in it just might have a better idea than you do about the capabilities of the airplane. Then that is backed up by independent experts with far more experience than you have who make their living reviewing and comparing airplanes. Perhaps if you had taken the time to read the information I presented earlier you might realize that these people actually have flown the airplane in question. So, it really isn't "just my opinion", its the documented opinion of experienced pilots.
At this point I think if someone can't grasp or refuses to grasp the idea that remarkable controllability is what the thead is really about and that execution of a flat turn was simply a way for the designer to demonstrate that control, then nothing else I say will ever get that point across to them. I have reiterated this theme throughout this thread, provided supporting data, and it appears that people don't read it. My original intent was to post this at the end of the year with the comments from the aviation journalists. It was simply meant as an opportunity for some doubters to read what people actually involved with the airplane, people who actually flew it, respected aviation people, to impart their knowledge to HBA. It has reached the point like many threads where some want to make the thread about me rather than try to learn from the experts I posted. The idea was to provide some food for thought and make it a year end thing...then start the new year off by putting all that to rest. In other words, here some data to digest, hope it provides food for thought. Then Happy New Year. Didn't quite work though as I allowed myself to get drawn into continuing rappor. So at this point I'm going to step aside. I presented what I thought was objectively informational . I have nothing further to add here but others are welcome to voice whatever they feel is relevant.
Touche' have not seen an explanation why ability to fly at slow speeds is beneficial. Stating a plane with lower stall speed is safer just because it has a lower stall speed assumes facts not in evidence.So far, no one has explained to me why the ability to not just retain control, but to have extroadinary control at extremely slow speeds is not beneficial. Secondly, no one has explaned why the ability of an airplane to maintain lift and a safe margin above stall speed even if inadvertantly cross-controlled is not advantageous to any pilot.
Controllability vs stability. An airplane can be designed with so much stability that it is difficult to control, or a plane can be designed to be extraordinarily controllable in exchange for stability. Choose only one. Mission/purpose dictates stability and control.1. Tell me why the ability to have extrodinary controllability at extremely slow speeds is not a beneficial or desirable feature.
It's not a design feature. All airplanes have the ability to maintain a safe margin above stall speed when cross controlled. Have you never seen a "Flying Farmer" airshow act? A Cub or equivalent is flown around in a small area while executing exaggerated slips and skids - it doesn't stall and fall out of the sky. Slow airplanes are obviously best for this act because they provide the desired illusion.2. Tell me why the ability to maintain a safe margin above stall speed when inadvertently cross-controlled is a bad design feature.
Those are the key points here, and they were merely demonstrated by the designer and several other pilots by making a flat turn as an exhibition of controllability.
Here is your opportunity to contribute something worthwhile to this thread rather than one line commentary that benefits no one.
I got put in timeout for doing that on a facebook group........lol:roll:
Yup. Slow airplanes have low wing loadings. That makes flight in turbulence really uncomfortable, and actually dangerous if it's bad enough. Such turbulence would be a minor inconvenience in an airplane with a higher wing loading. And, as you say, crosswinds keep such airplanes on the ground; they'll just blow away uncontrollably. Crosswind components get pretty big with STOL airplanes.I'd like to see this extraordinary plane make a maximum performance short field landing with a 20kt crosswind. Bet it can't do it because of ......(drumroll) inadequate controllability but they don't demonstrate the things it can't do,
You think that admitting whether or not you are a pilot on a forum about homebuilt airplanes is "posting personal information'? This evasion is laughable.Nope, not avoiding the question, I just figure that its really not a good idea to post personal information about ones self on the internet. I have found that no matter how innocently the information is presented there are people out there who find a way to exploit it As I said, once before in a moment of weakness I answered the question...I also make it a point not to ask others about their personal information. You would probably be surprised at how much information is available about yourself.
Once again, you make assumptions based on ignorance. If you'd bothered reading the threads, with the leading edge tanks I'm putting in the Hummelbird, it will have more than enough range. I will have breakfast at home and lunch at noon in Oshkosh.I don't think a Hummel-Bird is going to set any speed records flying to Oshkosh and I don't think it has the range to make it without one or two refuelings, so how early do you plan to leave for Oshkosh?
You certainly don't want to enter the "pattern" at Oshkosh when your fuel is marginal. Talking about individual preferences, some of us like to actually fly an airplane that has room for some clothing, and maybe the ability to sleep inside, especially in inclement weather. Individual choices encompass many different accomodations.....I'm sure you are familiar with the Turtle and the Hare scenario. That being said, there are airplanes like the Pegazair which will both make STOL landings....in fact extremely short and extremely slow STOL landings yet employ floating slats which allow cruise speeds well above 100 mph depending on engine choice. In fact I think some of them cruise just as fast as a Hummel-bird. So, opting for an airplane that provides the best of both worlds is an option to those that take the time to look.https://www.youtube.com/watch?v=6mWuhT3mjO8
As for the pancake breakfast banter...a friend of mine built an O-320 powered RV-6. Beautiful airplane. His major complaint is that every time he flys it he goes so far so fast that he can't really enjoy local flying and if he is with any of his friends in spam cans, he has to wait for them. There is a lot to be said for enjoying flying at a slower pace when 90% of ones flying is local. How long do you think it will take for you to get from the airport in Louisville to the pancake breakfasts at warp speed ? Then there is the whole issue of survivability....and how high up that is on your scale of important things. Every pilot is taught to continually scan for possible landing sites. With your Hummel-Birds small wheels, minimal landing gear, only 2 cylinders, compact size,and higher stall/landing speeds, the chances of surviving an inflight problem are pretty slim. I have had two friends who have died in homebuilt airplane crashes, and three other friends who have been involved in engine outs and crashes. One of them had two engine outs in two separate airplanes. One of them they couldn't even open his casket. So, pardon me if I'm a little late getting to the pancake breakfasts, I have other priorities.
You don't understand the basics of an approach. I'd be approaching at 1.2-1.3 Vso. I can make a few mistakes at that speed, even a bit uncoordinated, which is why that's the recommended approach speed you fly.What you don't seem willing to admit is that there is a difference between being able to make a mistake and expect to get thru it and not get thru it. As an example, at the minimum landing speed of a Hummel-bird, a cross-control would probably be deadly. At that same speed and for sometime afterward, the Storch would be much more controllable and provide a better chance for survival. I put a much heavier value on that than being first in the pancake line.
Neither of your articles stated the speed at which the flat turn was done, the first doesn't mention altitude and the second article only mentions it was done at a sensible altitude. A 172 will happily do flat turns at 70mph. Every turn in the airshow video is a banked turn. You've not even offered a single example that the low and slow flat turn is safe.Again you dwell on the flat turn as being the point of this thread. It is not the point.....it was merely a demonstration of the real point which controllabilty even when you make a mistake at slow/landing speeds. It is verified by videos of the airplane, recommendations by the designer of the airplane, and aviation journalist/pilots. I would think that the man who designed the airplane, flies it regularly, exhibits it, demonstrates it, and puts his life on the line in it just might have a better idea than you do about the capabilities of the airplane. Then that is backed up by independent experts with far more experience than you have who make their living reviewing and comparing airplanes. Perhaps if you had taken the time to read the information I presented earlier you might realize that these people actually have flown the airplane in question. So, it really isn't "just my opinion", its the documented opinion of experienced pilots.
https://www.youtube.com/watch?v=IrYtkADFaqs:gig:
it all looks like bait to me. the guy has a love affair with his keyboard. LOL.
Stick and Rudder which I believe is one of your favorite sources has this to say:Turd Ferguson;Touche' have not seen an explanation why ability to fly at slow speeds is beneficial. Stating a plane with lower stall speed is safer just because it has a lower stall speed assumes facts not in evidence.
Not sure why you feel a stable airplane cannot also be a responsive and controllable airplane but here is what 4 different professional pilots had to say about the SS.Controllability vs stability. An airplane can be designed with so much stability that it is difficult to control, or a plane can be designed to be extraordinarily controllable in exchange for stability. Choose only one. Mission/purpose dictates stability and control.
I can't answer that question, but then how often do inexperienced pilots go flying when 20kt (23 mph) crosswinds are predicted ? Anyway, none of the answers above are mine, they are the opinions of 4 separate professional pilots who make their living testing airplanes and writing about them. The tests were conducted on four different dates in 4 different places and all of them came up with essentially the same conclusion. So everyone out there who wishes to critcize them will have to find some other argument than than trying to argue my qualifications. Remember, nothing posted above was originated by me, I'm just the messenger.I'd like to see this extraordinary plane make a maximum performance short field landing with a 20kt crosswind. Bet it can't do it because of ......(drumroll) inadequate controllability but they don't demonstrate the things it can't do,
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