RV8Squaz
Well Known Member
Yesterday I took my airplane up for a test flight after installing my repaired LSE Plasma III and I'm very happy with the results. Overall, my CHT's dropped about 50?F.
For background info, see this thread, particularly my last post, message #66 here:
http://www.vansairforce.com/community/showthread.php?t=140211&page=7
Before the repair, my temps would hit 410-425 by 5000' during climb and I would have to level off and let things cool before continuing the climb. In cruise the temps would settle right around 400? running an excessively rich mixture.
For my test flights, I wanted to try worst case conditions. I launched in the middle of the afternoon with the OAT at 92?. I flew two 30 minute legs, KFFC-KPXE-KFFC, with about 30 minutes on the ground at KPXE. On the second leg, after being heat soaked, I took off and climbed straight to 10,500 while maintaining 100 KIAS. The hottest it got was 385? In the climb and in cruise the hottest cylinder settled at 360 at peak EGT mixture. I tried various altitudes and mixtures and generally saw 345-360?. VICTORY!!!
I want to thank Scott Card again for his original posts. My problem and resolution ended up being IDENTICAL to his situation. His posts and the other contributors to the connected threads have been especially helpful in getting though this. Thank you!
For background info, see this thread, particularly my last post, message #66 here:
http://www.vansairforce.com/community/showthread.php?t=140211&page=7
Before the repair, my temps would hit 410-425 by 5000' during climb and I would have to level off and let things cool before continuing the climb. In cruise the temps would settle right around 400? running an excessively rich mixture.
For my test flights, I wanted to try worst case conditions. I launched in the middle of the afternoon with the OAT at 92?. I flew two 30 minute legs, KFFC-KPXE-KFFC, with about 30 minutes on the ground at KPXE. On the second leg, after being heat soaked, I took off and climbed straight to 10,500 while maintaining 100 KIAS. The hottest it got was 385? In the climb and in cruise the hottest cylinder settled at 360 at peak EGT mixture. I tried various altitudes and mixtures and generally saw 345-360?. VICTORY!!!
I want to thank Scott Card again for his original posts. My problem and resolution ended up being IDENTICAL to his situation. His posts and the other contributors to the connected threads have been especially helpful in getting though this. Thank you!