MAP at 12,000 ft

nickrahal@gmail.comnickrahal@gmail.com
in General Discussion
I have a 1981 PA 32R 301T. On a trip down to Key West at 12,000 feet density altitude and with the throttle for forward and Fuel flow at 19.5 gph the maximum manifold pressure I could attain was 26 inches. Is this normal for a turbo Saratoga?

Comments

  • Scott ShererScott Sherer

    I have a 1977 turbo arrow III (TSIO-360-FB) and I can get 33 inches at 12,000 feet and 13.5gph. No it doesn't sound right. Fuel flow sounds right but MP doesn't. What is your prop setting?

    Scott Sherer
    Wright Brothers Master Pilot, FAA Commercial Pilot
    Aviation Director, Piper Owner Society Forum Moderator and Pipers Author.

    Need help? Let me know!

  • nickrahal@gmail.comnickrahal@gmail.com
    I usually cruise at 2350 RPM
  • Scott ShererScott Sherer

    I can get 33 inches at 2400 rpm. So you have a problem. Better see your A&P.

    Scott Sherer
    Wright Brothers Master Pilot, FAA Commercial Pilot
    Aviation Director, Piper Owner Society Forum Moderator and Pipers Author.

    Need help? Let me know!

  • nickrahal@gmail.comnickrahal@gmail.com

    Thanks .......will do

  • Scott ShererScott Sherer

    Good luck, hopefully just an adjustement. Let us know how it turns out.

    Scott Sherer
    Wright Brothers Master Pilot, FAA Commercial Pilot
    Aviation Director, Piper Owner Society Forum Moderator and Pipers Author.

    Need help? Let me know!

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