Anyone see a big plane where prop is right at the back?
Posted 01 September 2008 - 06:41 AM
Thanks for the idea, hadn't come across it in my searches yet.
Posted 30 September 2008 - 08:46 AM
In the mean time, due to yet another failed design, decided to give the old cularis wings a go, on a design I had seen a while ago. Not sure if any of you have seen the whispershots.com airplane or spoken to "power" on rcgroups.com(if your interested do a search on him there and check out all posts started by him and look around at ultra beast or something like that) but the design works, although I think it would be better with ailerons, as right now it's designed similar to easystar in terms of funtion and is much more affected by wind without ailerons. Very simple, light weight... am trying to lighten up as much as possible for this new plane. He has a really nice design for the wheels. He seems to make 4.5" wheels out of epp or some sort of hard black foam from computer cases that are insanely light and able to handle good load and don't require springs or heavy duty landing gears to take hits. The wheels are 4-8g depending on how they're made. Axel is carbon fibre rod... perhaps the lightest landing set I have seen thus far. The wheels and landing gear for my giant wing are over 200g, these include 3x3.5" "light wheels"(from hobby store) which seem to weigh in around 40g a piece plus all the metal for the shafts and wood to apply to body of plane. So for those of you looking to lighten up landing set, this guy has got a great idea.
Almost done the plane, tail section is just about done just need to mount servo and control surface stuff... main body needs a little more work in terms of wiring(just need to add y split for ailerons) and finally need to figure where exactly the wings need to attach. I'm sure I can get help from rcgroups.com about this but there's plenty o smart guys here... so quick question about wing placement. Do I determine where the wings go by completing everything then look for cg point on body where everything is balanced then cut out so wing cg point is in the same spot? Or is there much more math to figure out first(eiiiyiyi). Helps appreciated (btw there is plenty of room to plug wings to fuse, it's an ugly design...
Will have some photos up soon, at this point till I get a response I'm going to continue completing the body and tail stuff...
Posted 30 September 2008 - 12:35 PM
Edited by W3FJW-Ron, 30 September 2008 - 12:36 PM.