Safe take off speed.
Proper tire pressure for your tires.
Safe operating range for flaps.
Safe range to raise or lower landing gear.
Safe landing speed (on longer runways).
Vne - Speed to never exceed
RPM at which you shift gears.
Last speed before wings fall off
Standard Miles per hour
Kilometers per hour
Pounds per square inch
Nautical miles per hour
Fuel remaining onboard.
Safe operating speed.
Safe landing gear operating range.