Dan G wrote:
On Aug 23, 9:30 pm, Eric Greenwell wrote:
I'm curious about where this 7% number comes from. The number I
routinely see is 10%, and it's always stated as a *minimum*, not an optimum.

The Caravan Club of Great Britain. They contracted Bath University to
do some thorough research in the 1990s using a heavily instrumented
caravan and towcar. TBH, in all the advice above, I was just quoting
them :-).

A caravan is quite different creature than a glider trailer, so I'd
hesitate to accept their values without knowing more. Did the 7% figure
apply to single axle trailers towed with standard hitches, meaning no
dampeners or load distributing hitches?

Can you give me a link to the document you are quoting from?

--
Eric Greenwell - Washington State, USA
* Change "netto" to "net" to email me directly
* "Transponders in Sailplanes" http://tinyurl.com/y739x4
* "A Guide to Self-launching Sailplane Operation" at www.motorglider.org