Providing RTK precision and pitch, roll and heading for aerobatic aircraft.
Requirement
- Produce a navigation system that provided RTK precision with roll, pitch and heading at 20Hz
- The output data would be broadcast from Mike Mangold’s Zivko Edge 540 aerobatics plane in the Red Bull World Series Abu Dhabi race in March, 2006 to overlay a real race over a virtual image of previous practice and competition runs
- The hardware had to weigh under 1kg, operate to 12G and withstand 20G whilst qualifying for an airworthiness certificate
Solution
- We commenced flight testing in January, 2006 at St. Neots Airfield in Cambridgeshire
- We worked with NovAtel who modified the firmware to operate at 12G instead of 2G.
- Working with Pi Research (now Cosworth) and an aerobatics team we tested the system constantly over a three week period
- The end result enabled us to generate a 12G INS system that gave decimetre in-flight performance and weighed less than 1Kg when housed
- The GPS equipment was housed in a light metal CPUpak case specially designed for strength and weight whilst the IMU was housed in a Forsberg lightweight magnesium housing
- Data was displayed in special F1 style display software showing roll rates, accelerations, position, speed all projected over a virtual 3D-view of Abu Dhabi
