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Senior Member
Long High angle climbs
Have any of you tried continuous high angle climbs, like 70mph indicated for long periods of time less than half fuel solo?
My usual routine would be climb hard and I found that after a minute or so in the climb the engine would not be quite as smooth so I just pulled the throttle a touch. That always fixed it. I figured it was just the modified carb set up on the 340 that was causing that. Pulling mixture did not help and just rose EGTs to a level that I would not except.
Yesterday I figured I would leave the throttle in and see what happened. Full rich and continuous climb I would start to see a slight decay in fuel flow from high 12's to low 12's and roughness would start. (Flying above 5000ft) Drop the noes a touch, it would stop, pull the throttle a touch it would stop. Level flight it would flow over 13gph and smooth the whole time.
Two people on board, full throttle smooth the entire time in the climb as I just cant get those really high climb angles.
I think it is a combination of two things, the carb does not like the high angle attitude as the float is not doing a proper job and with lower fuel in the wing, it cannot provide enough head pressure for the fuel demand. I did a flow test before first flight but I know I could never set the plane up as high as angle it can do solo. Who new it could climb so steep
Have anyone else tried this? Just wondering if I should be hunting for an underlying issue.
Thanks
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