Drone - QF-4 havari

Drone: Fly som fungerer som luftmål

UAV: Unmanned Aerial Vehicle - Fly eller helikoptre som styres fra bakken, gjerne via satellitter, eller har preprogrammert sin operasjon og greier seg selv, uten flyger på bakken.

UAS: Det samme som over, men betegner hele systemet, ikke bare flyet men styrings- og støttenheter på bakken eller også satellittene den måtte bruke.

RPAS: Remotely Piloted Aerial Vehicle: Et fly eller helikopter som styres fra bakken, gjerne via satelitter, men det har altså en flyger på bakken.

 

 

QF-4 Unmanned Aerial Target Accident Report Released A defective pitch-rate controller led to a QRF-4C Phantom II crash just eight seconds after take-off from Tyndall Air Force Base, Fla., July 17, 2013, according to an Air Combat Command Accident Investigation Board report just released. The QRF-4C, an unmanned aerial target, was assigned to the 82d Aerial Targets Squadron, 53rd Weapons Evaluation Group, Tyndall AFB, Fla. The aircraft, one infrared, flare-dispensing pod, and 120 flares were destroyed on impact. The impact also caused damage to the runway and barrier, making the total loss of the mishap almost $4.6 million. There was no damage to personal property. According to the report, the Attitude Heading Reference System, which controls the up and down movement of the aircraft, sent incorrect inputs for the horizontal pitch of the aircraft to the autopilot system. These inaccurate inputs caused the aircraft to pitch up and down rapidly. The pilot in the ground-control station executed the proper emergency checklist items, but was unable to stabilize the aircraft and it pitched down 33 degrees and impacted the ground. The board president found, by clear and convincing evidence, that the cause of this mishap was a defective pitch-rate portion of the Attitude Heading Reference System.