Hi Guys I took off at 9:20 am for a 1 hour flight in the local mountains. It took quite a while to climb to 9000 feet, as I was crossing over a glacier I had a bit of a scare. The RPM started dropping from 3000 to 2900 in about 3 seconds. I pulled out the carb heat and after about 15 seconds the RPM came back up. More proof the a POSA carb can experience carb ice, it was probably in the intake manifold.
Al Hawkins KR2 C-GDPU Port Coquitlam, B.C. Canada