"fixed aircraft" is correct and usable in written English.
You can use it when referring to an aircraft that has had any sort of repairs or maintenance. For example: "The mechanic fixed the aircraft and it was ready to fly again."
Around that same time she was equipped with a fixed aircraft catapult on the port side of the forecastle.
Around that same time, either one or both of the ships was equipped with a fixed aircraft catapult on the port side of the forecastle.
Around that same time, one or both of the ships was equipped with a fixed aircraft catapult on the port side of the forecastle.
In 1926 the rangefinders were upgraded and a fixed aircraft catapult was mounted on the port side of the forecastle for a Macchi M.18 seaplane.
Private companies now perform many mundane tasks that soldiers did in the 20th century, from peeling potatoes to fixing aircraft engines.
One consequence has been a recognition of the need to deploy measuring devices, known as light detection and ranging sensors, or Lidars, which measure light particles and can be hand-held, fixed to aircraft or placed on the tops of mountains.
This harmful vibration can bring damage or failure to the electronic equipment fixed in aircraft.
Any patient who requires transfer by air will be taken by coastguard and military helicopters, Scotland's Charity Air Ambulance helicopter or the SAS fixed wing aircraft.
Reference land cover class labels were determined via fixed wing aircraft, as the high resolution imagery used for determining the reference land cover classification in the conterminous U.S. was not available for most of Alaska.
Posture of an aircraft fuselage can be evaluated based on the coordinate values of measure points fixed on the aircraft fuselage in aircraft final assembly.
