TachCalc app for iPhone and iPad

Save fuel and money by leaning your fixed prop engine at cruise – regardless of altitude – easily with PilotGEEKs TachCalc. Aircraft POHs recommend leaning above 5000 feet to protect the engine from damage. TachCalc lets you quickly and easily calculate your target RPM for the power setting desired for your current altitude.

And TachCalc simplifies your fixed prop flight planning by allowing you to determine both the best power setting for cruise at your selected altitude and the TAS to file.

Features:
> Improved user interface. Adjust Indicated altitude, Altimeter setting, Outside air temperature and % power utilizing:
o Self-centering sliders
o Direct keyboard entry
o Customizable display units
- Altitude: Feet or Meters MSL
- Altimeter Setting: inHg, mmHg, mBar, hPa
- Temperature: ºC or ºF
- Speed: Kts, MPH, KPH
- Fuel Flow: usGPH, impGPH, LPH
> Calculates and displays
o Engine speed for desired % power
o Pressure Altitude
o Density Altitude
o Indicated Airspeed
o True Airspeed
o Fuel burn at best economy (maximum lean)
> Supports fixed pitch propeller aircraft
> 22 aircraft profiles included (see web page for details)
> Aircraft profiles can be edited to match planes POH
> User defined aircraft profiles