Friday, September 28 - Patch...First Impressions

[Bounder!]

Originally Posted by ATAG_Snapper

At 18K feet (2a)/22K feet (1a 100 octane) the engine began sputtering, losing power, with rpms jumping wildly between 2400 and 3000. No damage reported in Damage Window; temps OK (ie oil < 95, glycol < 110 for both aircraft). The only way to smooth the engine vibrations and get partial climbing power back was to go Fine Pitch -- 300O rpms, but temps climbed with rad fully opened. Aborted climb, engine resumed normal operation below 16K feet with no apparent damage.

This ^^

I've not tested the 2a yet but the 1a 100 Octane, depending on where I take off from I hit a wall - air start at Eastchurch it was ~18K and ground start from Manston it was ~20K - where the rpms jump wildly. I managed to punch through it by using high rpms (low rpm didn't help, nor did changing mixture). Above his wall you can stabilise the rpms a little but the climb rate drops off massively. I had no damage, engine temps were normal and dropping back down resulted in return of normal engine power. I repeated this from these two airfields with the same results each time.