OK. badly worded question.

Here I was trying to point out that DRAG is the major difference between a
40:1 glider and a 20: glider. Not lift, not gravity.


Drag determines the direction of flight.

More drag= steeper glide (spoilers, flaps)

Less drag = flatter glide

Cookie



At 18:23 19 March 2009, The Real Doctor wrote:
On 19 Mar, 12:15, Bob Cook wrote:

Spoilers redistribute lift, but not reduce lift.

They reduce the lift over part of the wing. Whether the overall lift
increases, decreases or stays the same depends on what the pilot does.

Flaps change the coeffecient of lift, but not lift.

If you keep everything else the same then they do change lift. Every
tried dumping your landing flap just before the flare ...?

Q) =A0Two gliders, one is 40:1 racer and glider two is 20:1 trainer.
Both
weigh 800#

Glider one has twice the lift of glider two. =A0True or flase and why.

Depends what they are doing.

Ian