[gurps] Autogyro performance

[Anthony Jackson]

Hal wrote:
> 
> If GURPS doesn't meet expectations to the point where the rules design do
> not permit real life designs to function, but VDS design rules do permit
> real world designs to be created via its rules - then clearly VDS design
> rules are better at achieving the goal of game construct vehicles (of the
> autogyro type at least) than is GURPS.  So why bother to dig up a text that
> you can't read or understand, trying to fix game rules that you can
> understand?

Because just because the formula produces usable numbers doesn't mean 
those numbers bear significant relationship to reality. Basic 
aerodynamic formulas aren't that hard, but it sounds like autogyros 
operate in the speed range where conventional fixed-wing formulas break 
down, and the equations used there (and also used for helicopters and 
flapping wings) are fairly impractical without a computer.