• Welcome aboard HomebuiltAirplanes.com, your destination for connecting with a thriving community of more than 10,000 active members, all passionate about home-built aviation. Dive into our comprehensive repository of knowledge, exchange technical insights, arrange get-togethers, and trade aircrafts/parts with like-minded enthusiasts. Unearth a wide-ranging collection of general and kit plane aviation subjects, enriched with engaging imagery, in-depth technical manuals, and rare archives.

    For a nominal fee of $99.99/year or $12.99/month, you can immerse yourself in this dynamic community and unparalleled treasure-trove of aviation knowledge.

    Embark on your journey now!

    Click Here to Become a Premium Member and Experience Homebuilt Airplanes to the Fullest!

Search results

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
  1. R

    Real or doctored photo?

    I came across this and personally think it's not fake, I would like to see what some real jet pilots have to say before I make some more crackpot comments about regenerating electric power while flying. :wonder: Comments from anyone is OK...
  2. R

    Recycling Lead acid Batteries

    Can anyone provide an answer or a link to information about salvaging the dried paste that coats the positive and negative lead grids in a battery? I have looked for years and have several books on batteries and nowhere have I found anything that indicates if and how to return lead dioxide and...
  3. R

    Electric by Stretching Action

    I won't say what comes to my mind, but the Rubber Band style of a plane might make a comeback :) https://www.techbriefs.com/component/content/article/tb/techbriefs/energy/28731#at_pco=smlrebv-1.0&at_si=5ce2d460a36d0667&at_ab=per-2&at_pos=0&at_tot=6 Yarn plus motor winder?
  4. R

    Electric and Counter Rotation

    A very informative interview with some good visual display that should get anyone's mind seeing clearly and their just scratching the surface. :) Thanks for watching.
  5. R

    Reporting a possible downed airplane

    Anyone have suggestions for the best action to take in reporting a plane in an obvious downed condition ( in the trees at very remote area) Naturally the best outcome is it's an old crash and everyone survived, it was recorded with the FAA and case closed, or is it possible to become a suspect...
  6. R

    Patent Law question

    My thanks to henryk for the link to CR Flight, https://www.crflight.com/ https://www.crflight.com/analysis The question I have is, can anyone manufacture a Counter-Rotating electric design and cite my post from 2007 as a reference to allow them the right to use what CR Flight has a patent on...
  7. R

    Corvair, half power/half compressor

    I would like to start this thread to field some thoughts from anyone, in regard to looking at hybrid use of fuel, electric, and compressed air, I feel that some things can be blended in such ways that a measure of fuel can be extended in such manner that duration of flight is increased by a...
  8. R

    Ducted fan blade design

    I did a search in the forum and came up with so many threads, I'm not sure how to narrow the search. My question is based on using a prop calculator, I have obtained power and speed results for some recent post that I have made. The input info was for a 3000 pound all up weight @ 200 MPH, air...
  9. R

    Electric Cessna

    One of those mornings, awake 2 hours before the coffee pot:mad2: but it did yield this find on the internet. Beyond Aviation - Updates A Cessna 172 going electric, look at the updates and gallery, some interesting information (but little real detail). Looks like the days of electric power are...
  10. R

    Has Anyone Seen This Design ?

    Saw this some years ago and have not seen anything about it having been put into service, in any form to date.
  11. R

    Backpack Helicopter, thread 2

    The single most talked about thing I seem to see is more power in a lite weight power plant, well a couple of years ago Bob Kelly put me on to a UK website for backpack helicopters and that is the same dilemma, even more so. As has been mentioned on this site, electric power is making strong...
  12. R

    Steam power ????

    Is anyone on the forum, fairly up to speed on steam applications? With current materials technologies, I wonder if any new research is being looked into, in regards to aviation? Ron
  13. R

    Beauty as a design criteria

    Lets get to the very basic question, would you prefer to be in the air in a ugly plane, or always on the ground looking up at pretty ones? Without ugly, how would we know if we had pretty ? (beauty is in the eyes of the beholder) I remember the days when automobiles came out with new designs...
  14. R

    The Good Ole Days

    A few post recently, have made mention of how hard it is to buy things needed, in order to enjoy the hobby, and in some cases a business, in the field of aviation. Many people on this forum, are around my age (64), and will identify with what is being said. First car in 1960, was a 1954 Mercury...
  15. R

    XP-61 Black Widow

    I'm sure this will need to move to the U/L catagory, but i'm starting here because this thread is less active at the moment and i am talking about a Warbird. After a lot of research on this site and others, with much more to come. I have found that the half scale size of this plane is very close...
  16. R

    Tip for Blue and Pink foam

    While doing some experiments with bonding foam, a simple solution to cutting and boring holes, came up. Some may have already found this, but if you do not have a hot wire cutter, or the throat capacity of your cutter is not deep enough, the use of a 15/30 watt solder iron from radio shack...
  17. R

    Backpak Helicopter ?

    Many years ago, i remember a small picture (in popular mechanics ?) of a man in the air about 15 or 20 feet up, if my recolection is right , his first name was Hans. The unit on his back was an air cooled snowmobile engine, of about 25 hp, turning a three blade prop (i think). I'm wondering if...
  18. R

    Too much information

    As Will Rogers once said " it's better to be thought a fool, than to speak up and remove all doubt" With that being said, i have a lot of things i would like to discuss in the near future, however, after seeing a lot of information and links about what some members are doing and being...
  19. R

    Looking for a loop hole

    Two questions 1. Does anyone know if a single engine/motor driving two counter rotating props would pass, in the 254lbs. class ? 2. If electric powered, could batteries be placed in pontoons, thus removing them from the qualifing weight of a 254 or lighter ultralite ? Some interesting...
  20. R

    New member

    Hi i'm Ron, i live in central texas, it would be nice to be associated with a flying club once more, my quest for a pilots license took place in the early 60's and after just 20 hours of solo flying, a career shift brought it to a close, just never made the effort after that, a decision i have...
Back
Top