# Recent content by CobraCar11

1. ### Best Hybrid Aircraft - E Motor + Combustion engine OR E motor + Generator for power?

I was wondering what would be the best setup for an aircraft..... Would it be better to have a hybrid setup with an electric motor and combustion engine combination, with both connected as a direct drive to the prop? Or would it be better to have an electric motor directly drive the prop, and...
2. ### Any official update on the "Batteries as Fuel" Issue lately?

I have seen interviews where someone quotes a friend or contact who is "in the know", or is an official in the FAA or EAA, and say that it is 'DEFINITELY HAPPENING' soon. It will allow the equivalent weight of fuel as batteries, or the equivalent power of the fuel as batteries. I have also...
3. ### A new all-electric aircraft with a range up to 600 miles unveiled at Paris Air Show

Re: A new all-electric aircraft with a range up to 600 miles unveiled at Paris Air Sh It seems like there is a disparity between the vision of the founder, and the reality the company faces. The closer those two perspectives can come together, the better the chance for success. Sometimes, if...
4. ### Extra Plans Laying Around? Need Plans to Show Kids About Aviation

Thanks for the info! No, I don't know much about the young eagles. I will find some info. I don't even know any pilots, so I am learning all I can. Do they have young eagles all around the country, as in chapters?
5. ### Extra Plans Laying Around? Need Plans to Show Kids About Aviation

I have recently caught the bug for aviation. I am looking for any aircraft plans people might have laying around that they don't need anymore. I work with the Scouts as a Scoutmaster, and want to teach them about how aircraft work, how they are built, and what goes into them. I also...
6. ### Glider vehicle tow launch idea to shorten field

Thanks for your feedback, everybody! Funny story, a few years ago my girlfriend was going to give me a Christmas present of some helicopter rides or glider rides. Some friends of ours said they tried the glider rides, and it was fun at first, then really boring! And we listened to them, and...
7. ### Glider vehicle tow launch idea to shorten field

Thanks Victor Bravo. I haven't had a chance to attend that event yet. I am still very new in aviation, and am trying to learn all I can. I just joined my local model aircraft flying group in my state - in face, I just got home from attending their monthly meeting for the first time! It...
8. ### Glider vehicle tow launch idea to shorten field

Thanks Victor Bravo. I figured someone would have thought of it. I haven`t found anyone else who has used it yet, but I am new. The only major risks (beyond the normal risks of flying) I thought of would be the pulley coming loose, and the other being the glider crashing into the oncoming...
9. ### Glider vehicle tow launch idea to shorten field

*Disclaimer* I have not flown a glider, but want to soon. I am learning about gliders, and may build one someday. I was thinking about how much room is needed to tow a glider by car. You need the length for the rope, and for the car to drive. Remember when the "Mythbusters" would run their...
10. ### Would others be interested in a CNC machine for $2k-$4k? laser/plasma cutter options

Re: Would others be interested in a CNC machine for $2k-$4k? laser/plasma cutter opti I guess if ball screws are the deal breaker in price, someone could just use belt drives, then stack all the ribs together and use a router bit to true them all up to the same shape..... The reason for the 2'...
11. ### Would others be interested in a CNC machine for $2k-$4k? laser/plasma cutter options

Re: Would others be interested in a CNC machine for $2k-$4k? laser/plasma cutter opti Aviator 168 - Just thought about your question some more, and it occurs to me that you may be referring to more than just the motors. It will be solid TITANIUM! Just kidding!.... I was thinking of wood, to...
12. ### Would others be interested in a CNC machine for $2k-$4k? laser/plasma cutter options

Re: Would others be interested in a CNC machine for $2k-$4k? laser/plasma cutter opti Aviator 168 - You said "What is machine made of?". Are you referring to the motors? I am looking at NEMA motors for the minimum, but I am considering servo motors for their position reference. NEMA's can be...
13. ### Would others be interested in a CNC machine for $2k-$4k? laser/plasma cutter options

I am designing and building a CNC unit that can process 4'x8' sheets of plywood and other materials. The height (z axis) limit would be 2' to 4' max (still deciding). It would be able to use plasma cutter, laser options as well if someone wants to add it on. I am doing this because there is...
14. ### NASA Prandtl-D Project - Yaw is propulsive, not drag --- Has Anyone Followed This?

Re: NASA Prandtl-D Project - Yaw is propulsive, not drag --- Has Anyone Followed This BTW, thanks to Norman and Midniteoyl for the Youtube videos. I really enjoyed them. Thanks for finding and posting them.
15. ### NASA Prandtl-D Project - Yaw is propulsive, not drag --- Has Anyone Followed This?

Re: NASA Prandtl-D Project - Yaw is propulsive, not drag --- Has Anyone Followed This Victor Bravo - thanks for that. I'm still grasping, but I'm in the direction of starting to understand it. I think it is very interesting that this "phenomenon" is starting to click - as an "ah hah!" moment...