buzzard bait

People often talk about things like "ballooning" or "instability" without specifying what the actual problem is. In this case, was it actually longitudinally unstable? Then the CG was too far back. Or, more likely, did it just climb too much under full power? In that case, today we would just use down trim. The better solution would be to trim up the leading edge of the stab. If that was not possible, you could make the wing incidence more negative, but then you lose some of the downthrust that you need. The early designs usually had the stab set quite negative to the wing, which was the usual free flight practice. If you add much power and you can't control the elevator it swoops up.

LOTS of successful biplanes have flat bottom airfoils. Up until the late 1920s or so most even had undercamber. You can build perfectly good models of them using the scale undercamber.

Jim

GallopingGhostler

Lots of good info, folks, thanks for making me aware of these things. When I build an RC bipe, will have an idea when it comes to making flight adjustments.

joebahl

My Feedback: (2)

Yes i will have to let this imfo sink in i was never a biplane person till now and i have one and getting ready to build a couple more in foam and a balsa one. Thanks for the great imfo .joe

buzzard bait

Our club is hosting a biplane get-together this fall. It will be in the AMA calendar. Small bipes (and triplanes, etc.) will be WELCOME! (Along with all other sizes, and electric too) I'm working on a couple of bipes right now, one will be powered by a PAW .06 diesel. I'm glad if anything I posted was useful.

Jim

joebahl

My Feedback: (2)

Ha Ha your a wealth of imfo buzzard bait ,iam close to 60 but still learning good stuff every day. My spring and summers are filled with ama water funflys or i would take you up on that bibe meet offer. I have been flying 95 percent off of water now for 15 years and have made many friends who attend them with me. joe

buzzard bait

Hey Joe, that is a great looking airplane! I've been wanting to fly off water here but even though lots of lakes, haven't found a place for glow engines. I'll go to a float fly around here next season and give it a try. I'm over 60 myself and still learning too. Grew up in Iowa and still drive out there a few times each year.

Jim

joebahl

My Feedback: (2)

Ha Ha if you say you farmed like me when you were young we might be long lost brothers. I started driving a john deer A at the ripe old age of 10 . My dad said i could not keep the corn rows straight till then. joe

twowing

Flipper 18"

Flipper built about 20yrs ago, 2ch. R&E .010 Cox silk& dope fly's good.

Sorry, for some reason I can't post a picture.

Steve Westphal

I've always thought a racing series for .020's would be fun. I have a plan for an .020 Rivets that is as cute as it could be. I saw a small Shoestring a while back that would work. I have souped up some TD .020's and they will really scream....until they melt !!!!!!!! Let's hear some comments.

Steve Westphal

BTW.......does anyone know a Jared Miller aka "Jasper X" I sent him 140 dollars for a couple of .020's and never received them or anycontact.

aspeed

I hate when guys steal your money. I lost $150 on a S Tiger X .29 that was never sent many many years ago. I was a fairly well known name too. Carlos Aloise. Apparently he did it to a lot of people. Some people actually had to show up at his door and he would pay up. That is about the only way. It is a bit of gas to go to California from here. My wife tells me about it every time I want something in the mail. It ruins it for everyone. Some guys were racing reedy .049s on the forums (Fora) with some local success. I think it would go over better if parts were available on a common engine like an AP .09, or LA .10 or .15, and maybe a cheap kit or simple plan to make things more global and even.

MJD

My Feedback: (1)

Don't know him, but the name has come up in the past.

Edited with apologies

joebahl

My Feedback: (2)

Been a while since i been here so here are a few free 049 free plans most tiled including a twin 049 shrike . Its a sin i know but planning on a bigger shrike some day only electric . lol joe http://my.pclink.com/~dfritzke/

Mr Cox

He ran it to some personal problems I believe, rather than just scamming people for money; http://www.coxengineforum.com/t1667p...ghlight=jasper

combatpigg

My Feedback: (3)

Carlos Aloise..name rings a bell.
I think he flew C/L Carrier and some speed...getting frequent mention in the Carrier standings...?

combatpigg

My Feedback: (3)

Isn't Jaspur X one of those "Aspiring Rappers" who is always getting his life turned around...?

AnthonyT71

Sir, when you say reasonably rare, could you put a value on it? I was just given one of these in its original box and the gentleman wants me to assemble it.

MJD

My Feedback: (1)

If you are talking about the Sterling Hornet 1/2A kit - sure they aren't commonplace, but they still would only sell for what someone is willing to pay. It is a '60's 1/2A ukie kit after all. If I wanted another one bad enough and the kit was in nice shape, I still wouldn't go over 40-50 bucks. I have traced out all the templates from my kit so far, but I have yet to redraw it in CAD which I intend to do sometime. For me it has specific nostalgia as an example - my brother got me a kit when I was single digit age and it was essentially built for me at that age. and I was fond of it, no more than that.

MJD

My Feedback: (1)

.. and to finish my rambling, if the owner wants the kit built, then perhaps that is ultimately what "should" be done. It is easy to preserve kits for nostalgia until they crumble into dust. But as a case in point, preserving a 1939 Megow Cub kit intact (mine is carefully wrapped) seems far more significant than than keeping a production line kit from the '60's - rather than just building it nicely and enjoying the model. After all that's what the kit was intended for.

Dan Vincent

I have a biplane U/C kit that is very rare. I can only find it advertised for one month in a 1953 Model Airplane News magazine.

I flew one of these, powered by a McCoy .098 for an entire season with no crashes. It belonged to a stranger who watched me flying my ,19, .29 and .35 models.

We were talking about engines and I mentioned that I loved flying .09 models. He said to wait a while and hopped on his Matchless motorcycle and took off.

Ten minutes later he came back with this little blue bipe tied on to his bike and said I could borrow it. He said just save the engine if you wreck it.

He came back a few months later and was surprised it was still in one piece.


Testor's Avro-Baby

Avro-Baby parts

Bipe Flyer

How'd I miss this thread, back in the day? Here are some of my bipes. All scratch built from my own plans.


Ultimate - Norvel .061

Cloudbuster - Norvel .074

Waco Cabin Bipe - Cox TeeDee .020 with throttle

Waco

1/2A Bipe - Norvel .061

.010 Bipe