What's New

Version 1.10:
* Fixes too low airspeed with M600 normal cruise near 20,000 and -25c.

Version 1.9:
* Show both Pounds and Gallons at the same time on the iPhone and iPad.

Version 1.8:
* Update Meridian Maximum Speed Cruise to use tables 5-67 through 5-73 circa September 2011.
* Fixes bug with Meridian fuel flow at FL200 which caused bad fuel flows around that altitude.

Version 1.7:
* Added Apple Watch support for Piper M600, JetProp DLX (-35), JetProp DLX (-21).
* Show ISA deviation in Apple Watch

App Description

Utility for pilots of the Piper Meridian, M600, and JetProp DLX (-21 and -35) airplanes. Pilot enters altitude and outside air temperature; the app immediately calculates max speed cruise torque, true airspeed, pounds per hour, and NM/pound.

Uses calculations from tables 5-67 through 5-73 of the performance section of the Meridian POH (circa September, 2011); figures 5-16 through 5-31 of the M600 performance section; and the JetProp Cruise Performance charts in the JetProp DLX (-21 and -35) POH. Pilot can flip through different torque settings to see the effect of torque on airspeed and fuel consumption.

Pilots should use solely for educational purposes. Always refer to your current Aircraft Flight Manual (AFM) or Pilot Operating Handbook (POH) for use while operating an aircraft. Your aircraft's POH is updated regularly by the manufacturer and is the only source of torque information you should use operating an aircraft.

iPhone Screenshots

(click to enlarge)

Meridian / JetProp Torque screenshot 1 Meridian / JetProp Torque screenshot 2 Meridian / JetProp Torque screenshot 3

iPad Screenshots

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Meridian / JetProp Torque screenshot 4 Meridian / JetProp Torque screenshot 5 Meridian / JetProp Torque screenshot 6

Apple Watch Screenshots

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Meridian / JetProp Torque screenshot 7

App Changes

  • December 02, 2017 Initial release
  • June 14, 2019 New version 1.10
  • June 14, 2019 Price increase: $2.99 -> $4.99
  • June 14, 2019 Price increase: $2.99 -> $4.99
  • June 15, 2019 Price increase: $2.99 -> $4.99
  • June 15, 2019 Price increase: $2.99 -> $4.99
  • June 15, 2019 Price increase: $2.99 -> $4.99
  • June 16, 2019 Price increase: $2.99 -> $4.99
  • September 16, 2023 Price increase: $4.99 -> $9.99

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