I thought that the "white stick" idea was originally suggested on 1st
April........................!
Duncan McF.
----- Original Message -----
From: "Graham Singleton" <graham@gflight.f9.co.uk>
Subject: Europa-List: : Landing Radar?
<graham@gflight.f9.co.uk>
>
> >
> >Cheers,
> > I have been blessed to acquire an idea from Graham Clarke of
> >Edinburgh, whose inquisitive mind came up with (among many other things)
a
> >'landing Radar'.
>
> Ferg
> Graham also came up with a more agricultural, but no doubt equally
> effective device which he called his "Whtie Stick"!?!
> This was a long (5ft) stick that dropped down with the landing gear and
> trailed on the ground. Inboard end was attached to a potentiometer, so
> rotation of the pot it would register height above ground in the same
> range, audio bleeps as in glider variometers which are very easy to learn
> to use,
> It too might save the cost of a few Warp Drive blades? A friend broke a
> couple at the rally at Kemble. Hearing the story made me wonder if the
> tailplane deflection was adequate. I always recommend 13 degrees of up
> elevator and insist that stick is hard back on landing. When the speed
> drops to 20 knots the rudder won't help any more and it's important the
> tailplane (all that's holding the tail down ) isn't still lifting instead
> of pushing down. Remember that on the ground tailplane angle of attack is
> reduced by the amount of the ground attitude of the fuselage.
> the other Graham, (sorry to be boring again)
> pity he has left us due to medical and age reasons, a very bright mind.
>
>
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