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wing loading

Stuka Stunt Main Forum · 4 of 4 known posts recovered

cavis · Nov 13, 2004 10:04 PM

#0 source
what is considered as the the low, average, and high wing loading for the present contest stunt ships.
Thanks.

Currell · Nov 13, 2004 11:02 PM

#1 source
A single digit is very good. But there are plenty of contest winners around 12. What is kind of high? Maybe 14 or thereabouts.

Wing loading isn't the Holy Grail. There are a lot of discussions here at SSW that attest to this. One recent thread told of adding 8 ounces near the CG on a skitterish ship in the high 30 oz range. Plane flew much better afterwards.

Currell

Serge Krauss · Nov 13, 2004 11:32 PM

#2 source
Wing loading seems higher in competitive modern stunters with greater power - perhaps even 12-13+ oz/ft^2. Currel's synopsis seems good. I wonder though about the conclusions reached concerning required loading for classic models. It has been remarked often enough on this forum that the Nobler, for instance, required a wing loading in the 40+ range to perform at its best - that is, that there were wing loadings in the 30's that were too low. I wonder whether reducing the flap/elevator deflection ratio below 1/1, say to 2/3, wouldn't allow the advantage to lie with a more lightly loaded model. Wind might require a more heavily loaded ship though. Comments?

SK

Serge Krauss

LNeumann · Nov 14, 2004 08:23 AM

#3 source
Actually 12 to 13+ works wonders. Ted would love to have a new 55 ounce Trivial Pursuit at his disposal. So would David whose planes are usually a bit lighter than Ted's. That would bring them in at the low end of 12. The same plane weighing 59.5 ounces would have a loading of 13. In fact, it would still fly fine in the lower 60s.

It might be said, however, that the larger the plane, the greater the loading that can be heaped upon it, and also that with greater power at your disposal one can generally pack in the pounds (or ounces) a bit more.

All that said with a 660 square inch Trivial Pursuit being just fine at 55 ounces or above, Noel Drindak brought in his latest Super Kestrel of 745 square inches at something like 50 ounces or about 9 3/4 ounces per square foot.

They can be built lighter, but they certainly do not need to be in order to be competitive.

Leonard Neumann