WC Biplane and Other Notable Airplanes

[Bruce Shipp]

I’ve been itching to ask the world team about the red biplane

Now that you are home and have hopefully caught your breath, can anyone share some details? 

We’re there any other unusual airplanes worth discussing?

Thank you,

Bruce

[Howard Rush]

It flew really well.  It flew like a stunt plane, not like a Bi-Slob.  Wings have pretty narrow chord.

[Lauri Malila]

It’s a model of Kravcik/CZE. He used it in the pre champs world cup contest, and placed 3. after Orestes and Igor, I think. But in the world champs he flew his normal model, to 2nd place.
It’s s cool model that seems to fly surprisingly well. L

[phil c]

It flew really well.  It flew like a stunt plane, not like a Bi-Slob.  Wings have pretty narrow chord.

You got it Howard.  Bi-planes of any size usually requre a generous spacing between the wings- at least one chord length, and a bit more won't hurt.

[wwwarbird]

It flew really well.  It flew like a stunt plane, not like a Bi-Slob.  Wings have pretty narrow chord.

 Lectric I spose?

[Curare]

You got it Howard.  Bi-planes of any size usually requre a generous spacing between the wings- at least one chord length, and a bit more won't hurt.

I'
m curious, why does there need to be such a big spacing between wings?

[PerttiMe]

I'
m curious, why does there need to be such a big spacing between wings?

Airflow over one wing interferes with airflow over the other wing, if they are near each other. Separation by at least the length of wing chord has been a rule of thumb to minimize this.

[PJ Rowland]

As someone who spent MONTHS with some of the brighter  minds on the biplane theory, the explanation of wing interaction is not as straightforward as it seems.

Part of the issue ( ONE OF THE MAIN issues ) is you need separation to allow to airflow during manouvers. There is a specific minimum number to allow for "somewhat" tight manovers and this example seems to fit in exactly what we came up with.

Although if I had my time over again I wouldn't cant the top wing forward like this ( and mine ) for a few reasons.. mainly inside / outside variations..

The narrow chord is needed for 2 main reasons.. .

1.. the overall lift needed is still a know equation.. approx 2" of total root chord for lift and drag, having 2 wings just means you need to half it.. so 2 x 1" approx...

2.. drag reduction..

I wouldn't recommend a bipe to anyone who doesn't want a massive headache....  I Honestly found no significant improvements.. the extra drag it generates needs alot of power to overcome.

I started with a PA75 and then retrofitted it to Igor electric and although the latter was ALOT better it didnt show any serious improvements..

I also had a walker style flap adjustments on all 4 flaps.. one thing that surprised me was the amount of flap travel needed was HALF of a normal ship.. go figure..

I applaude whoever decided to attempt this red one..
Control system was a tough one to crack.. this one cheated with a bar attaching both flaps.. mine had all indepentantly adjustable systems.. you really need to be able to dial in T1 vs T2..  I virtually had to rewrite my trim book to handle inside outside..

But like twins are nice a 4 engine version isn't better lol..
2 wings isn't better than 1 ..

[Air Ministry .]

justin case someones figering on Doig One , theres a few ' Guideline type  ' putt putt's ' as opposed to rip snorting terrors .


BE2C/ 12.


Bréguet 14. pretty simple  solid .



Zero stagger plus a all flying Tailplane , which could be usefull , on a Biplane ? Salmson 2 , 7 in U.S. service , for patriots .


And a de h 60 G III Moth , a ' straight wing tiger moth ' & theres zillions of Tiger Plans , Good thrust line / stagger cetera , & hopefully LIGHT .. Being a de Havillland . for semi scale buffs .



luciano Compostella got the Euro Champs with one , so they cant be totally impossable . theres video somewhere of it doing its thing ?

[Air Ministry .]

Thats ' The Sixth Time ' for those of us illiteraye in italian .







That Make Free .    Just some general parambultions fo furver faut . Fanks .

Id Considera Curtis CR3 as inspiration , myself .  Somewhat elongated & flattened . Simultaeneously .
narrower Fuse , longer wings , narrower floats , but then it'd be a TRI PLANE .  wiv the Extra Lift from them ,
not to mention the better tracking .

[Air Ministry .]

Few More flogged from Mr zambelli's posts , https://stunthanger.com/smf/open-forum/old-topic-falco-bipe-plans/









 apparently Mr Burges is resposable .

[Air Ministry .]

[Air Ministry .]

My umpel pinion's stick anuva 10 hinches on heach wing - span , + 20 . Wouldnt hurt - if its still extant , i.e. F & R edges continued all ends for 250 m.m. od , for higher A R .  flaps left As Is .



With little tips like a de H 88 ( like it has ) the bulshirt on the 88 Tip stall is as they tried to land it like a Bi Plane ! .  Just frow anuva ten inchers onem , moit . 

[john e. holliday]

My 38 Special flies as well as my other stunt planes and could be a winner in the right hands.

[Air Ministry .]

Douglas DT - 2 , looks like it would ' convert ' to stunt , if  your looking for a flash paint job .









Sans floats perhaps . Some are flatter aft top fuse - some rounded upward .

[Scott Richlen]

Build one based on the Sparrow Hawk.  Really good looks!

[Shorts,David]

My 38 Special flies as well as my other stunt planes and could be a winner in the right hands.

I got beat by a 38 special flying against my ringmaster.

[Scott Richlen]

I got beat by a 38 special flying against my ringmaster.

Oh-oh!  Time to build a Ringmaster Bipe!!

[Pat Johnston]

I actually designed a Ringmaster Bipe around 2008. Bill Gruby built it, but I’m not sure if it ever flew. With 650 squares, setup for a ST60 or equivalent. Seems that I also did a 46 sized version, too. I’d need to look at my files. If anyone is interested, I can attach the PDF files for easy viewing.
Pat Johnston
Advanced Ringmaster Design Studio
Idaho Skunk Works

[Scott Richlen]

I think someone on here had a photo of a Bipe they built using 2 Ringmaster Jr. wings on an S-1 fuselage and tail.

[Steve Dwyer]

Photo of Ringmaster Bipe with two Jr. Ringmaster wings

[John Park]

Check out Peter Miller's Cavalier Mk. 4 in Outerzone - a very good, straightforward aerobatic C/L biplane. 

[Pat Johnston]

I looked up my Ringmaster Bipe and it is actually 715 squares.  Here are the PDF files so qhoever wants can look at it.  It is actually a real looker.
Pat Johnston

[Air Ministry .]

" Build one based on the Sparrow Hawk.  Really good looks! "


AAARRRGGGHHHHH .


WHO is resposable for THIS ( match )  .   

Starting to get Vinage ,





Farnham III bi-plane

[Air Ministry .]

Talk about OLD ;



You could build it as a Helicoptor too . Just in case it didnt work as an aeroplane .



On June 16, 1922 – 100 years ago today, Henry Berliner demonstrated a prototype helicopter to the U.S. Navy’s Bureau of Aeronautics in College Park, Maryland.

https://www.freightwaves.com/news/freightwaves-classicspioneers-berliner-built-earliest-version-of-the-helicopter

These ones mustve done really good square corners .