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Re: Wing in ground effect and Oops




Martin Barnett wrote:

> >, what  I meant, though, was:  as running speed is increased, lift
> increases to a certain degree but only behind the Centre of gravity, <
>
> Why does lift only increase behind the center of gravity when
> running?  For animals,  just sweep the wings slightly forward if you
> wish to increase lift in front of the cg.
>
> >pitching an already front heavy animal at a diagonal.
>
> See above, you can shift the lift to pitch over backwards if you
> wish.   However, since I'm not too partial to bipedal pterodactyls,
> I'm not going to pursue that.
>
>  >I'm sure I've argued this biped point for far too long now so I'm
> going to stop - just wanted to clear up the confusion first.< >Samuel
> BarnettPS:  I hope you never DO have to experience that in an
> aeroplane,<
>
> Experience what in an airplane?
>
> >because if so, it means your plane is doing a wheely along the
> runway, it's fuselage is buckled in the middle<
>
> If you're talking about lowering the AOA while in ground effect, why
> would the fuselage be buckled? I'd  just be carrying the tailwheel
> higher than usual.
>
> >and it's swing-wing mechanism has become L-shaped:<
>
> What's a swing-wing mechanism, and why does it become L-shaped?
> Perhaps your planes are more sophisticated than mine.  All but one of
> mine are old tube & fabric Pipers that were built back in the 40's,
> marvels of simplicity and unsophistication.
>
> >It's a terrible shock to the average commuter's system - one which
> many people find hard to recover from :<
>
> I'm sorry, I missed the subject here -- what's a terrible shock to the
> average commuter?
> Cheers,
> Jim