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October 5, 2021

What Does an Aircraft Maintenance Technician Do?

Aircraft maintenance technicians work in maintenance hangers which are large, wide-open platforms specifically designed for aircraft maintenance and repairs.

September 7, 2021

Is Methyl Ethyl Ketone (MEK) Safe for Use in Aviation?

Methyl Ethyl Ketone also known as 2-butanone, and methyl acetone, is commonly abbreviated as MEK. It is a natural liquid emulsifier derived as a by-product of industrial chemicals.

July 2, 2021

4 Benefits of Turbine Engine Wash Systems

Turbine engine wash systems are an important component for maintenance of jet engines. Turbine engine wash systems involve high pressure and high temperatures to efficiently clean jet engines, removing contaminants such as dirt, salt, and grease build-up.  Proper turbine engine cleaning is critical for engine performance. A reliable turbine engine wash is the single best investment for the care and maintenance of any new or existing jet engine.

AGM Batteries - Game Changing Battery Technology

PowerAll Systems uses 2400 Amp AGM batteries for our Travel Model Ground Power Units. Our GPUs are the perfect solution for convenience and dependability in extreme temperature conditions.

June 8, 2021

Ground Power Unit

Ground Power Unit vs APU

Anytime it comes to powering an aircraft, there are two main sources; external power and onboard power.  The external power comes from a Ground Power Unit, or GPU for short, that is generally used in the hangar for powering things such as the lights and other avionics on the aircraft.  The onboard power comes from the APU, or Auxiliary Power Unit, which is actually installed in the aircraft and is therefore is not mobile like the Ground Power Unit can be.  This is just the main difference between Ground Power Units and Auxiliary Power Units, but we can go into much more detail when comparing the capabilities and uses of the two power sources.

May 10, 2021


The aircraft engine should be cleaned regularly in order to keep it performing at its best. Think of the aircraft as a vehicle. When the vehicle gets all salty and dirty it is taken to the carwash. Any time the aircraft is used, it is exposed to salt air. Regular cleaning is imperative.

April 9, 2021


Ground power units are used to deliver power to an aircraft. There are many different types to choose from, based on need and availability.

March 12, 2021

aerospace white board

Aerospace engineers are employed in a wide range of work environments from aviation exploration all the way to national defense. A multitude of aerospace engineers...

Febuary 8, 2021

airplane in hangar

Over the past few years, there has been a rapid increase in the need for commercial, civil, and general aviation roles. Commercial fleets are becoming older, and new technology is on the horizon.

January 21, 2021


Ground Power Unit (GPU) is an electrical device which powers an aircraft while on the ground. Most aircraft use a fixed or portable ground power unit as one of the electrical systems to allow the aircraft to start and function while flying through the air.