andrew69

Hi,
today i was given a set of bi-plane wings. there 45" long and have about 950 sq" area the aerofoil on them is symetrical.
I wont to make a profile fuz for them but iv never made a bi-plane before.
my plan is to make it an all out 3D plane like the OMP boxxer
so i need to know:

where to possision the wings ? I.e how far the leading edge of the bottom wing is from the front of the fuz

how much positive stagger the top wing should have ?

and the incidence the wings need ?

im thinking the fuz should be about 50" long is this in the right ball park?

thanks in advance for any help.

Andrew

andrew69

sorry i forgot to add i also need to the length from the top of the bottom wing to the bottom of the top wing.

iv been looking on the net for some info on designing bi-planes but all i found is how to do the CG. any links will also be very appreciated.
Thanks...... Andrew

STLPilot

My Feedback: (21)

Andrew do you have AFP or AFPD flight sim? If so you can go into the model editor and roll the plane around in 3D view to get your calculations.

Just wondering.

What you need are some 3 view shots of the Boxxer or the Ultimate 10-300. I don't have either one or I would get them for you. But if you ask for them, someone will get them to you. Just ask for the one you want. The 3 views will give you all the data you need as long as the pics are taken properly.

andrew69

Thanks for your reply,
i donut have AFP or AFPD [&o]

if someone has 3 view shots of the boxxer the will be grate.

then i can just scale it up in photoshop and take the data i need.

Very big thanks if anyone can post them up

Andrew

STLPilot

My Feedback: (21)

Do you have pics of the wings? One of the most important pieces are the attachment points for the cabanes and middle support. You'll need to build that up for support. It's more important that your attachment points are much stronger on a profile then a full fuse because the whole thing can easily collapse. There was another guy who did this a while back on this forum, I'll look for the thread.

andrew69

sorry got no pic's as my cam's died and and been sent of for repair. ill post pics up as soon as i can

i was going to add new ribs to the wing and make the cabanes support's the same as the boxxer. i have good pics on how they go

thanks for your help on this i really appreciate it
Andrew

SMALLFLY-

My Feedback: (19)

Why dont you just go to the pro bro site and look up matchlessaero, Jeremy (the boxxer designer) is a great guy and Im sure he would give you some ideas. He's allways trying new stuff

andrew69

sorry I'm new to profile's and don't know of the pro bro site i think iv found it but cant find matchlessaero?
has any got hes e-mail address or a way of getting in contact with him. he sounds like the bloke to talk to!

also if anyones got boxxer plans or the boxxer itself they can you take some measurements for me? i need :

how far the leading edge of the bottom and top wings is from the front of the fuz

the incidence of the wings

and lastly the
the length from the top of the bottom wing to the bottom of the top wing

thanks
Andrew