ORIGINAL: dick Hanson
awe - shucks- you apparantly don't fly models so none of what I said makes sense to you
If I wanted a plane to cross the channel in a self stabilizing mode - I think I could do that -- I have one rc setup I take out once a year - and fly to about 200 ft then turn off the system -it holds , due to a thing called PCM HOLD in the RX design
the plane will circle - and does gain and loose altitude (self corrects for speed ) till I get tired of watching it -
My foamy design does not fly crazy - tho it will do maneuvers which -apparantly you are not familiar with.
I hoped to explain why - but if you are looking for something from a text book - I can't help you.
Technical explanations are a waste of time if they are not clearly applicable to situation at hand.
as for zero weight - -it is a hypothetical example .
This means that IF the plane was of zero weight - how would that ZERO wingloading affect flight.
Awe shucks you still didn't answer my question. And you missed my point completely.
Your point still makes no sense whats so ever.
So what if you can make a piece of stryofoam fly. (I have several) I'm saying you can make it fly better using hard fast rules.
I fly 3d so I know exactly what your talking about. But you still don't make a valid point.
Hypothetical example of zero weight is of no use in your ideas. All designs are based on lift, which requires weight.
Lets see, if the world was square and the atmosphere was made of molten metal, how would we fly? Who cares?
Thank you for the kindegarden explination of PCM hold, my 9cap does that, now I know why.
I am not an engineer or an aerodynamics expert, just have a good sense of physics. Don't be upset if I prove you wrong.
Because you fly 3d foamies, and they are a little tail heavy with no airfoil, doesn't mean that the hard fast rules are still not applicable to make your plane fly better and more efficiently. Thats all the rules are meant for. Those hard fast rules were never meant to make planes do 3d
I once made a paper airplane cross the East River in NYC from a 10 story building. The plane had no airfoil, and very light wing loading. What does that mean? Nothing. It could have flown better with an airfoil.
If a plane is hovering, is it really a plane anymore?