TwinApps

A and P reviewer for the powerplant subject. A handy app to help you review whilst on the go. The ne

Free edition of the FAA Airframe and Powerplant General subject. Practice questions This questions w

A zoomable reference table format for commonly needed info for subnetting.

An interactive review companion for the part 145 license. This app will test your knowledge and prog

EASA Part 66 reference a handy reviewer whilst on the go and it's free!

An app to calculate the value of the voltage drop resistor and power rating in a series connected LE

A compilation of the various signalling system used in aircraft as well as helicopter marshalling.

This App is a guideline of ampacity or copper wire current carrying capacity based on the Handbook o

A handy reference for Aircraft maintenance professionals and students alike. The ATA chapters and su

Calculate Rotor slip, Motor speed , Horsepower and Sync speed using this app.