29.06.2010, 13:00
caldrail Wrote:Oh dear. if your theory was right, the aeroplane would lose stability instantly and enter uncontrollable gyrations. It isn't about positive or negative lift - it's the airflow deflection that enables fore and aft control. Aircraft do indeed balance, but on the centre of gravity, not the wing spar, and without airflow past the rear surfaces, there would be nothing to support the weight of the rear fuselage, though strictly speaking it would depend on the design whether the aeroplane flipped forward or back. You're right, you don't need to be an aeronautical engineer, but the science is often misapplied. As it happens, I'm a lapsed pilot in real life and I do therefore have some experience in the matter, aerobatics as well.LOL, I give up. I guess according to you the Shinden should lose stability instantly and enter uncontrollable gyrations. So should a Mirage III, Atlas Cheetah, Concorde, Tu144, Me163, B2, etc... :lol:
Sure, a conventional aircraft needs a tailplane because it was DESIGNED to use one. But you don’t need to design an aircraft with a rear horizontal tailplane at all. There are MANY aircraft without any rear horizontal tailplane and they don’t lose stability instantly as you claim.
Not about positive or negative lift you say? You may want to see it as merely wind being deflected, but that is a real kindergarten type of way to explain an airfoil, since a brick also deflects wind.
Here you go on about the rear of the aircraft's weight being supported by the tailplane again. Get this - The tail's weight is carried by the main wing, just as the nose and the rest of the entire aircraft's weight is carried by the main wing in a conventional aircraft.
You don't even know that in most aircraft the center of gravity is over the main wing spar. It is the strongest part of the wing, so it needs to carry the most weight of the aircraft and the aircraft's weight needs to be centered around it. The whole aircraft needs to be balanced around its wings.
Ps. You're not the only pilot in real life (I've been both a fixed and rotary wing pilot for over 14 years), so you don't impress me with being a LAPSED pilot. It 's actually a shame that even the most basics of the theory still elude you.