Hello people. Found this blog from the DLE30 blog on FG and I finally had the time to run my first 3-12oz tanks of gas through my DLE 30 that sits on my 72" yak 54 all up less gas-11 lbs. 5 oz. Mind you I still have a way to go on break in (even after fixing the SPS syndrome) and the main needle is still as fat as it can be without 2 stroking and my pulls (2 per prop for rpm and thrust) were limited to only 2-3 seconds each. Thrust was measured with a Mustad 50lbs digital fish gauge bolted to the ground in my garage with these results:
Vess: 18" x 6" - 8820 rpm/ 16.12 (that's 16 lbs and 12 oz) to 17.00 lbs thrust
JXF Slow Fly Prop: (from Hobbycity HK) 17" x 8" - 8670 rpm/ 15.3 - 15.6 lbs thrust
Master Air Screw Scimitar series: 19" x 8" - 7740 rpm/ 16.9 - 16.13 lbs thrust
For you who just like trying different numbers to see results I have a good prop thrust calculator page for you here:
http://adamone.rchomepage.com/calc_thrust.htm
Have a good one people.