So far it has not been hot enough outside to have any temp problem. On start I usually see 500 ITT and at idle less than 400. Only above 16,000 do I see the ITT approaching the limit, although I only use 1200 Torque for climb. Does anyone start the engine in feather? Would it give higher temps? Very versatile engine.
On the airplane, if you would be so kind to answer another question:
At 16,000, oat of -22C, in cloud and picking up a little airframe ice (mainly on the spinners), the windscreens suddenly iced up, the heated section as well as the top and bottom areas where the heater coils are not present. I guess I could have used the wipers to help clear it, but did not try. When we left the cloud the ice fell off. I fly to places where the ground temps are down to -25C, and wonder if I would be able to clear the screens under IMC on approach? Bit hard to see out front otherwise.
The load meter showed that the windscreen heat was working, the screens felt room temperature (not hot), the windscreen demister was on full and both windscreens were affected. My Mechanic was at a loss to explain it.
Has anyone else seen this? Is there a fix? Rainex? Ice Away? Pledge?