Re: Round the pole flying

aspeed Tue Sep 22, 2020 7:48 pm

Got a cool video here. Not really Cox related but it is something to peak the interest. He used a tripod. https://www.youtube.com/watch?time_continue=7&v=QpH5_HXjiko&feature=emb_logo Got it from another forum.

roddie Tue Sep 22, 2020 7:59 pm

@aspeed wrote:Got a cool video here. Not really Cox related but it is something to peak the interest. He used a tripod. https://www.youtube.com/watch?time_continue=7&v=QpH5_HXjiko&feature=emb_logo Got it from another forum.

Thanks for sharing Alan! That's along the lines of what our member ian1954 was experimenting with. I hope to hear more on the topic from Ian! Smile

F4D Phantom II Thu Sep 24, 2020 6:16 pm

Hello guys
I`m posting some more information from a magazine I received. This time are the guys from M.I.T. doing the RTP flying. They mention that the attachment point from the tether wire must coincide with the center of gravity.Information that was not provided in the Tiny Tim article.They mounted the elevator with soft wire on the all balsa model to do flight adjustment.
Juan

F4D Phantom II Tue Oct 13, 2020 9:17 am

Hello Guys
I have new information from the Aug 1949 Air Trails Magazine. I realized that my plane as built will not balance at the tether wire as suggested in the article The center of gravity in my plane is an inch behind the tether line which would make for a problem if I try to fly it. I`m thinking about converting it to control line. The second plane that I built I installed a control line system to fly it that way. I have not been working on them due to having to do other things around the house. I`m posting the last information that I found and a few pics for anybody interested in RTP flight. Hope it helps.
Juan

Since I mounted the Cox.049 flat against the firewall I installed a piece of aluminum tubing as an air inlet behind the firewall and under the wing to help with engine breathing.

I`m also posting some pictures sent to me by Jim "uncle Jimby" Aron of his RTP planes. He ran the Aeronee cup which was a contest RTP using cox .020 Engines and he also flew Twin Cox.010 models. He ran the contest for many years.

As you can see in Jim`s airplanes the wings and the tail are far back both acting like the feathers on a dart just keeping the airplane going on a straight line. what makes this airplanes fly is the centrifugal force and engine power pulling the plane that is why they fly inline with the top of the tether pole and not higher.
Juan

roddie Tue Oct 13, 2020 7:57 pm

I really like that!

Interesting fuel tank arrangement.

getback Wed Oct 14, 2020 7:04 am

That's a small model for CL Juan , So i take it ur not going down this road again ? i was hoping to see ur plane in action ! I still think your plane came out looking really good , but i see what the difference is in beeing lead around by the power plant . Uncle Jimby has some wild looking plane there can we see some action somewhere / ? This Site Rocks!

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