Vance wrote:

First of all that chart is advertising hype and
probably bears very little relationship to real data
VJ

I just noticed this. I don't think it is far wrong as I have ridden in Tracy
Saylor's RV6 with a 180 Lyc and a constant speed prop and timed his break ground 
time from a dead stop. Less than 5 seconds. As I said my own 182 generates
near 1000 pounds of static thrust. Next time you get the chance, time the 
break ground time for a fixed pitch prop airplane. It is a good way to correlate
your prop programs. Next time I go up to Santa Paula I will take my stop
watch. These are very easy numbers to verify or disprove.

BTW anybody out there flying anything. Please record the time it takes
your airplane to break ground from a dead stop, approxmate RPM,
gross weight, rotation speed and engine rated HP. 
Constant speed or fixed pitch prop.
 
Paul Lamar
 
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