Here are the much asked for performance numbers for Cleanex N183SX. I've posted some initial numbers before, but now, with over 60 hours on the Cleanex, I feel these are the most accurate. I'm not a test pilot (although that's what I would REALLY like to do) but I did try to perform accurate testing that could be duplicated.
Weight and Balance- The Cleanex empty weight is 695 lbs in its present form: tail tips, wheel pants, no paint, and 6.5 quarts of oil. With full fuel and no baggage there is a 175 lbs minimum pilot weight. This allows me to delete fuel and carry heavier passengers or baggage, while remaining with within gross weight and CG limits. The battery is in the baggage area (allowed per plans) and could be moved further aft for lighter pilots.
Flight Tests- The flight tests were all started with full fuel and a total weight of about 1020 lbs. The test were flown from a field at 80 ft MSL, and ground temperatures were 70-80° F. Take off from pavement was measured at 350-400 ft, with one notch (10°) of flaps.
Measurements were made with a Garmin 90 GPS and the data were not corrected for temperature or density altitude. For each test I flew at least two directions, and each test was flown at least twice. The performace figures are the average of the tests.
ALT (AGL) RPM GPS (MPH) FPM GPH
7500 wot 3410 174 6
7500 3350 168 5.8
2500 wot 3460 174
2500 3250 155 (nrml "low alt" cruise) 5.5
200 wot 3540 178 7.2
CLIMB
1000 wot 3050 80 1750
1000 wot 2110 115 1150
This is the data most people were interested in. Feel free to contact me for more information.
