JackinMichigan
Well Known Member
Fellows,
I currently have about 3 hours in my RV-10. The last time I was up I wanted to check the vertical speed when in a glide with the throttle set to idle.
I was gliding at idle for about a minute, then I pushed the throttle all the way in and re-set my 75% power parameters. I then watched the fuel pressure plunge from 28psi to below 5psi, where it stayed for a good 20-30 seconds before slowly climbing back to normal. The engine didn't sputter or miss a beat, but it briefly had me looking for a field to crash land into.
Is this normal? After I had time to think about it I reasoned that the mechanical fuel pump simply needed time to re-establish fuel flow after being at idle for a while, but I cannot recall ever noticing this on takeoff. I do have an electric boost pump (which I forgot about in my state of near-panic), but I want to make sure there isn't something else going on that I hadn't thought of.
I currently have about 3 hours in my RV-10. The last time I was up I wanted to check the vertical speed when in a glide with the throttle set to idle.
I was gliding at idle for about a minute, then I pushed the throttle all the way in and re-set my 75% power parameters. I then watched the fuel pressure plunge from 28psi to below 5psi, where it stayed for a good 20-30 seconds before slowly climbing back to normal. The engine didn't sputter or miss a beat, but it briefly had me looking for a field to crash land into.
Is this normal? After I had time to think about it I reasoned that the mechanical fuel pump simply needed time to re-establish fuel flow after being at idle for a while, but I cannot recall ever noticing this on takeoff. I do have an electric boost pump (which I forgot about in my state of near-panic), but I want to make sure there isn't something else going on that I hadn't thought of.