Log 96 - Glasair Flight #5 (plane - #7) + Flight #6

5/2 - Didn't add fuel as both levels were still high from flight #4. Fixed air outlet deflector that came loose on flight #4. took off runway 34 right in some wind and engine temps still climbed during climb out. Very nice flight for 1/2 hr. Landed in wind again, runway 34 left.

Observations flight #5: Some engine shake at higher RPM's. Need to calibrate fuel pressure, flow and amount. Some cowling puckering which may lead to air escaping the normal flow, making engine hotter. Cyl 2 & 4 usually hottest. Realized I've been leaning on ground and during climb out. May help for cooling to no lean till 5,000 ft +. Ask on glasair.org regarding cooling on Glasair 1.

5/3 - Change prop pitch (trying to obtain 23"@2300 rpm at 3,000 ft). Found changes for flight deck for fuel flow& pressure, added seat back cushion. Taxied to fuel, added fuel in header (1.84 gal) and main total 8.74 gallons (since flight 4 that was 1 hr 15 min prior). Taxied to rnwy 34L for take off. Started flight, then aborted take off as it didn't feel right. Seemed rpm's on static check were only 1650 or 1700. Parked at west hangar to think about it. Either something wrong or prop too steep. Taxied back to hangar.

Observations: Now I've been told by another expert for prop angle, to go to 8,000 ft & try for cruise speed, 75% power at desired rpm. Intermittent rough idle is possible fuel injection or fuel but not electronic ignition (tested fine). I would like to revise baffling, open louvers more, finish cowl inlet per a plan to modify, add another oil access door support, change headlight wires (some static), fix vent air, add seat pan cushion, still calibrate fuel flow, revise checklist and adjust prop pitch back to a medium angle.

Another observation: I discussed my use of the 3,000ft runway with a test pilot and will revise all flights to use the larger runway for 40 hrs or till testing complete. It's not worth any safety issues and need to stay safe as possible when choices are available.