----- 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.
Well, yes, I heard of it - a kerb feeler.......
He also enlightened me as to his webcam 'wheel-eye' - a webcam under the
belly, looking at the mainwheel and the ground whizzing by.
I'm thinking - I'm thinking.
Ferg
|