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Building Tips and technical articles. => 1/2 A building. => Topic started by: Larry Renger on August 23, 2013, 11:51:06 AM
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Yes, friends, I just can't let well enough alone. The Baby Clown was all tuned in and competition ready (actually took 1st in 1cc with it at the Knights' Joust). So of course I had to modify it! VD~
Here it is transformed into a Baby Super Clown. I plan to fly it tomorrow. #^
I can provide the flap outline as a .jpg if anyone wants it. H^^
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That's cool. Let us know how it flies, please.
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Larry,
You and I are thinking very much alike. I crashed yesterday and I am about to mate my Brodak Baby Clown wing to a PDQ fuselage. I was also going to add flaps like my PDQ Super Clown.
You wouldn't happen to have templates you could scan me for the flaps? It would save me some time.
Looks great BTW
Ron
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Great idea, Larry! I am waiting to hear how much difference they make. If it is really noticeable, I can see reducing a Super Clown body down and doing a Baby Super Clown model!
A good thing is that we can always count on you for having these really interesting thoughts! Thanks!
BIG Bear
RNMM/AMM
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Cool looking model and ingenious "after the fact" flap pushrod hookup! If you don't mind my asking, what size prop are you flying and what rpm do you launch at? I love the way my clown flys with the TeeDee but I might slow it down a bit and try to polish up my flying.
Jim
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I haven't tached the model, but will tomorrow. Prop is the Cox 5 x 3 black. 15% Nitro, 22% oil mix. Galbreath needle assembly and usually a Merlin plug with 3 gaskets.
With a Tee Dee, if you have a big enough tank, try an APC 6 x 2 prop to give more pull at lower speeds.
One nice thing about the flap pushrod setup is that it is very linear compared to the angles that would obtain with a direct drive from the bellcrank. I have heard that this was Bob Palmer's preferred setup.
The flap to elevator ratio is about 2/3 : 1 .
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I for one can't wait to hear about the flight! #^ #^ #^ #^ #^
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Here is the flap pattern. Scaled from Brodak Super Clown plans. If it ain't right, don't blame me! BTW, you need 14" paper to print it out. H^^
Actually the model is now a lot closer to a scaled down Super Clown than it ever was to a true PDQ Baby Clown. mw~ n1 ~^ HB~> :'(
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Thanks Larry much appreciated!
I started a new thread you may be interested in.
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Hope it works for ya Larry. I tried that many many years ago on a 1/2A plane. Flaps on a Scientific American Boy. At least I could do loops with it then.
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The engine tached at 18,500 rpm, very much to my surprise! And yes, my tach is accurate, I have a crystal controlled tach checker my brother made for me.
The model flies much better than it did without flaps. It really smoothed out without losing turning ability. ;D
Only two flights because the lines are a bit long at46ft. Quit while you still have a plane is my motto! However, both flights were complete patterns. y1
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That is great news. #^
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Glad the flaps worked out Larry. You should take some video sometime......
I have to ask though, why is the pilot looking backwards?
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It is a canard pusher flying in reverse, and he got confused.
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...I have to ask though, why is the pilot looking backwards?
Ha! you beat me to it. I thought he just wanted to see where he'd been.
This is a great idea. Whenever I get around to fixing my Refried Bean wing, I'm going to cut the static flaps off and hinge them.
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Then again, maybe he is just "checking his 6". LL~