On Thu, 02 Aug 2007 07:34:53 GMT, "Hilton" wrote:

1. Go on a diet
2. Define a gallon of 100LL as weighing 5.82 lbs instead of the usual 6
lbs - Mooney did it.

Is this legal/valid? If so, why don't all manufacturers do it?

Hilton


It's valid, or at least more accurate that the traditional 6 lbs/gal.

Fuel specific density probably varies between manufacturers, but is
usually specified as 0.7 or 0.71, which is about 5.84 lbs/gal.

You need to carry a lot of fuel for this difference to amount to
anything useful.
I'll keep using the more conservative "6", ... and start dieting

- Tom