jeffk464

I'm working on a Classic pattern design and because I like the idea of high speed precision aerobatics. I plan on using the aurora 67 wing, a .75-90 inverted 2 stroke, and my own designed fuselage. My design for the fuselage is inspired by the very thin control line fuselages, I'm using the width of the fuel tank and engine to determine the width of the fuselage. The width will be 2.5" with a 2.5" spinner, the hight is 5" minus canopy, and the length is 60" but I might cut it down to around 57". Anyways, I'm curious what you guys think.

dhal22

you should post this in the classic pattern flying forum. there will be plenty of opinions and advice there. from what i can tell your design is a little boxy when you compare it to a curare, tiporare or a blue angel. great surface for extended knife edges though.

jeffk464

It's pretty much a rectangular box with heavily rounded corners, for ease of construction. I have come up with better looking designs, but I'm building for how it flies. Keep in mind many planes purpose built are ugly, like Q500's and in my opinion most modern pattern planes.

Here is one of my better looking designs but its bulkier and much more complex to build.

rainedave

My Feedback: (1)

I drew up the Aurora wing and stab in CAD a few months ago. If you are going the built-up route instead of foam cores you can PM me with your email address and I'll send my .dwg drawings.

David

dhal22

i agree with you on the modern pattern planes. nothing like the 70's. a blue angel or a curare is just gorgeous.

jeffk464

Definitely those old planes looked great. I love the looks of the eclipse from Aztec, it looks sleek and fast like the old pattern planes.

jeffk464

Ok, I decided to add a little to the looks, it will definitely make it harder to build and harder to build straight. The head of the engine is also now going to stick out of the cowl about 1/4", but that should be for cooling.

jeffk464

One more redesign, it should make it easier to build and I think improved the looks again.

BMatthews

Just a thought for you.....

I've done a couple of glider fins that use a thick airfoil and proper rounded and coved knuckle hinge arrangements that use a long thin hinge wire. This let me cover the rudder and then add it to the model after. If you were to use this idea you could more easily replace your rudder with new versions that move the area lower or higher as required to help with knife edge tracking and generally make the yaw maneuvers more non rolling.

tobypaq

David,
Could i possibly get a CAD copy of those surfaces? Look great. i think i can work them into a current design i am working on.
Toby

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