Jump to content

Recommended Posts

Posted
5 minutes ago, TangoTango said:

Tempest URHM38S, and they now have a couple hundred hours on them. At the time they were brand new.

#4 is my coolest cylinder by quite a bit, so it was hovering around the 300dF mark when I was targeting 350 on the hot cylinder. The fouling was never a problem (it always burned off with a high power runup for a minute or two) but failing a before takeoff mag check will make an impression on the passengers. I haven't failed one since increasing my target CHT.

As far as moving, my summers aren't too much warmer than yours. I know there are several AZ based members here; I flew out to KCHD this May, and that was hot. That trip was the only time I couldn't maintain under 380CHT in a protracted Vy climb.

#1 and #4 are my coolest. #3 is always the hottest. CHT delta is usually <30° except for when very rich or very lean and then #1 is challenging to keep warm.

Posted
19 minutes ago, TangoTango said:

As far as moving, my summers aren't too much warmer than yours. I know there are several AZ based members here; I flew out to KCHD this May, and that was hot. That trip was the only time I couldn't maintain under 380CHT in a protracted Vy climb.

FWIW, May isn't actually very hot here by our standards.  ;)

  • Like 1
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.