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Corsair Swing Flyer with u-control (Read 1341 times)
Reply #36 - Jan 25th, 2019 at 7:09pm

Sky9pilot   Offline
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Monogram Speedee bilt models were wood kits check out this link: Click Here
Tom
 

If God is your Co-pilot...switch seats...
Your attitude will determine your altitude!- John Maxwell
And ye shall know the truth, and the truth shall set you free. Jn 8:32
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Reply #35 - Jan 24th, 2019 at 6:18pm

DAVE Q   Offline
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The Corsair u-control saga continues. I found this article in the 1953 Jan issue of Model Airplane News. I just can't understand what went wrong.

#1, highlighted in the red cloud on page #1, the model shown is more or less the exact size of the Corsair I made.

#2, Highlighted in yellow on page #1, It talks about Monogram models, (hellcats, Corsairs, or Boeing Keydets) being used. I don't understand this comment at all. I thought Monogram models are all plastic.

#3, also on page #1, it references Jim Walkers whip control article. This is the article shown earlier in this post.

#4, the plan page, no scale is shown. I wonder if they consider this to be full scale. This would be about 50% of what the Corsair I built was. Remember the downsizing idea of hopefully getting this to work.

#5, highlighted on the plan page, it tells you how to size the length of your lines. This is exactly what I do.

#6, and then finally on the last page (36). It talks about a single line attachment, for normal tether flying (why). These old articles sure do leave a lot to the imagination.

It just bugs the heck out of me why this idea did not work. And these articles all say, this is all you have to do. Maybe it's me, remembering my old .35 control line days with that plane going wherever you pointed it, tearing up the sky. It's bugging me now to build this plane, at the scale shown on the plan. Possibly the saga continues.
 

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Reply #34 - Dec 8th, 2018 at 9:22pm

Sky9pilot   Offline
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If you've had some fun experimenting with all the different aspects of this build and flight...then you've won!!! After all, that's what this hobby is all about!  I love the look and the flying shot is great.  Looking forward to the next model.
 

If God is your Co-pilot...switch seats...
Your attitude will determine your altitude!- John Maxwell
And ye shall know the truth, and the truth shall set you free. Jn 8:32
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Reply #33 - Dec 8th, 2018 at 1:50pm

DAVE Q   Offline
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Well, sorry to say, the control line Corsair is gone. I stripped the control horn off it, and glued the elevator. Finished it up, and took some pictures. I placed the bombs outboard of the landing gear just for a more fun visual while flying. You can barely see the fins in the picture, that I put on the rear of the bombs. But, between the bombs, the landing gear doors, and the landing gear added for detail. I think the drag on this one is thru the roof. You can actually hear it going thru the air. Guess I learned a lot of what not to do's, in tether flying with this one.
 

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Reply #32 - Oct 28th, 2018 at 1:57am

DAVE Q   Offline
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pb_guy wrote on Oct 27th, 2018 at 9:36pm:
Is it possible that the model is too nose-heavy? The bellcrank pivot should be fairly close to the balance point?
ian


ian, thank you for your comment, I appreciate it. Please do not take these comments as facts, because I do not know what the problem is. The whole reason I tested this as a single line flyer, is that, it gave me the CG, nose weight, and location for the bellcrank, from a model that I could see that it actually flew. The only technical thing about tether flying is the nose weight. Not enough weight, and the plane climbs constantly to a stall, with only the slightest amount of speed. When the weight is right, slow speed of course the model drops. Average speed the model maintains level flight, and higher speed the plane slowly climbs. And if you really pour on the steam, you can work the plane into wing overs, and from there, into loops. At this time, you can only maintain loops for a short amount of time (15 secs?), because it takes a lot of effort. Getting it out of a loop, and back into normal flight, sometimes is a little tricky. I achieved this with my single line test. So, this is all I have to go from. After saying that, using two hands instead of one, really slows you down, and is much more difficult to turn as fast. And I guess after saying that, trying to use two hands, at this scale, I am just not getting up enough steam. I guess? And after realizing all that, this is starting to motivate me to do a half scale test. This post may pick back up another day.
 
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Reply #31 - Oct 27th, 2018 at 9:36pm

pb_guy   Offline
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Is it possible that the model is too nose-heavy? The bellcrank pivot should be fairly close to the balance point?
ian
 
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Reply #30 - Oct 27th, 2018 at 3:35pm

Sky9pilot   Offline
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Sorry to hear plan "C" failed.  I think speed might be your problem.  I'm not sure how that would be overcome...except as you say smaller model, but I'd thought that your solution would have worked.  As Alexander Grahm Bell said,"...found another way how not to make a lightbulb!"  Failure is always the best teacher.  Best of luck with the next plan!
Tom
 

If God is your Co-pilot...switch seats...
Your attitude will determine your altitude!- John Maxwell
And ye shall know the truth, and the truth shall set you free. Jn 8:32
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Reply #29 - Oct 27th, 2018 at 12:37pm

DAVE Q   Offline
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Well, sorry to say, (PLAN C) FAILED. Plan (C), was to put much larger elevators on it. I used double layers of card stock just for a test. Same results as before, up elevator just puts the plane in a nose high attitude, and does not climb at all. I have known these results for some time now, but was hoping something else would come to me, nothing has. I am not sad that I failed, I am sad that the idea failed. I just don't understand how someone printed the examples shown earlier, of this idea, and I can't get it to work. With the length of the lines, and the size of the plane. I don't see in any way how you can hold the pole in your left arm, and use the control in the right. Coordination alone is a major issue. I just guessed at the size of the plane compared to what I already have been flying. Maybe if the plane was half the size and weight. And the lines were half as long, maybe this would help with more power. And make this idea work. Sorry to say, but I think I am going to convert this plane back to single line control, finish it up, and enjoy it that way. Well I guess this post did have one positive. I learned what NOT to do in tether flying. I think taking everything to half scale as what I did, is my only guess at this time, to make this idea work.
 

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Reply #28 - Aug 11th, 2018 at 2:15pm

Sky9pilot   Offline
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My fly pole was two piece about 10ft long!  I think it might have worked well for light models.
 

If God is your Co-pilot...switch seats...
Your attitude will determine your altitude!- John Maxwell
And ye shall know the truth, and the truth shall set you free. Jn 8:32
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Reply #27 - Aug 11th, 2018 at 2:11pm

DAVE Q   Offline
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Sky9pilot wrote on Aug 11th, 2018 at 2:06pm:
I wish I'd kept my fly fishing pole.  It was long and very flexible.  Best of luck with the new pole.
Tom


The bamboo pole and this new fishing rod is about 6 1/2 feet long. I do wish it was longer.
 
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Reply #26 - Aug 11th, 2018 at 2:06pm

Sky9pilot   Offline
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I wish I'd kept my fly fishing pole.  It was long and very flexible.  Best of luck with the new pole.
Tom
 

If God is your Co-pilot...switch seats...
Your attitude will determine your altitude!- John Maxwell
And ye shall know the truth, and the truth shall set you free. Jn 8:32
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Reply #25 - Aug 11th, 2018 at 2:06pm

DAVE Q   Offline
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Once I had the new thinner line hooked up to the new fishing pole. I moved onto plan B for the Corsair. Plan B was, to hook up the line attached to the end of the pole, to the down elevator.  The down side remains a fixed length. Then I ran an independent line from the up elevator back, and down the eyelets of the pole. And tied a loop in the end of the line. And hooked the loop around my right hand fore finger. The idea is to relax your finger to let the plane go down. And bring it in for up elevator. The idea kind of works. You can hold the pole with 2 hands now, if you want. And also, you can stop spinning and hold neutral elev, and spin the pole behind you. And now, because the pole is so much easier to handle this way, you can feed in up elev, and easily follow thru with the pole, and do a large loop. Come out of the loop, relax your finger a bit, and level out. It takes a lot of steam to do all this. Speed is also part of making the elevator work better, DUH. I used solid sheets to build this Corsair, because this is what the attached pictures show. I am starting to wonder, if a lighter plane would work better. Like a No Cal design, with an enlarged elev. It would take a lot less steam to keep it going. I'm going to need a friend for pictures on this one Tom. It takes all the steam this old man has to keep this one doing maneuvers. I will say this so far, single line tether is much easier. Plan C to come.
 
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Reply #24 - Aug 11th, 2018 at 1:38pm

DAVE Q   Offline
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Tried the new fishing pole with 2 of my single line tethers. To my surprise, it was almost exactly as long as the bamboo pole I had. Kind of was hoping it was about a foot longer. It is though, easily half the weight. Worked just great with the single line tethers. Takes less steam to keep things flying.
 
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Reply #23 - Aug 11th, 2018 at 1:07pm

Sky9pilot   Offline
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Well done Dave!!! 
I look forward to pics of them at work, the pole and Corsair... Smiley
 

If God is your Co-pilot...switch seats...
Your attitude will determine your altitude!- John Maxwell
And ye shall know the truth, and the truth shall set you free. Jn 8:32
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Reply #22 - Aug 11th, 2018 at 9:50am

DAVE Q   Offline
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Jackpot. Stopped in a flea market this morning, and I could not believe it. It's about a foot longer than the bamboo pole I have, and easily half the weight. Best part of it, $3.00. Also, I have a plan B to come for the Corsair.
 

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