Re: [RCSE] Camber provides only one function during launch...

[Austinswill2]

WElp,   Im not sure EXACLTLY what the article said, so I will jsut think my way thru this little question and see how I fair.   ""Ot has nothing to do with stability...if our goal is altitude."" ~Gordie   Actually, our goal is ENERGY,  You dont want to get 10 extra feet and be at 0 airspeed.....( sorry had to bust your N^t$ a bit gordie! :)   ""Do you know what camber does of value?"" ~Gordie   I will say that when we add camber, we are basically jsut deploying a plain flap.  What this does is change the Chord line of the wing which ALWAYS goes strait from the leadign edge of the wing, to the trailing edge. With enough flap, the cord line can actually travel thru air and not thru the structure of the wing.  this is why we increase lift when we add flap at a given angle, because we change the chord line to create a higher AOA ( angle between the chord line and the Relative wind) Incidentally, we are increaseing incidence and "decalage" ( relative angle between chord line of the wing and chord line of the Horizontal stab)   When we do this, with the first small bit of flap, we add more lift than we do drag.  At a certain point in flap deploymen, the lines cross and we are now adding more drag than we are lift. which brings me to the next question....   ""Do you know what the end result of too much flap is toward the goal of the launch?"" ~Gordie   Scince the goal of the launch is maximum ENERGY in the plane... and when we add flap to the point where we are creating more drag than lift, we are causeing a lot of energy loss... basically the end result will be less energy in the aircraft from the launch.    Too much flap will hurt the L/D of the sailplane, this means less forward progression for a given amount of line pulled in on the winch.     ( in a forrest gump voice) Thats all i have to say about that.   I await my grade Teach!   Sincerly , Austin Williams                         ----- Original Message ----- From: [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Tuesday, January 20, 2004 8:37 PM Subject: [RCSE] Camber provides only one function during launch... Ot has nothing to do with stability...if our goal is altitude.   Do you know what camber does of value? Do you know what the end result of too much flap is toward the goal of the launch?   I do...  and its super dumb simple..sort of like why one leg of a Goose V flight is longer than the other side.   Let's hear your ideas. Its a good day to learn somethings. :-)   P.S. NO TELLING if we have already talked about it..or you read the article. Gordy Yes it was in RCSD       --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.561 / Virus Database: 353 - Release Date: 1/13/2004