The following part is from an article I recently submitted to be published in the SETP Cockpit magazine and follows up an analysis I had performed few years ago.
“To complete this analysis and quantify the effect of the thrust setting on ITR, a specific example is considered. The following figures (3 and 4) are analytically generated and correspond to a high-performance fighter aircraft assuming a 9g limit, a weight of 20,000kg, altitude 20,000 ft and max thrust at that altitude of 20,000lbs. The primary analysis considers a α_max of 50deg and δ=0 (Fig.3(a) and Fig,4(a)), and a sensitivity analysis is performed for α_max of 60 and 40 deg as well (Fig.3(b) and Fig,4(b)).“
As part of the 2021 fixed wing Flying Qualities ground school, I provided a new lecture on the Bell X-2 Roll Coupling flight test accident.
The lecture reviewed the whole flight test program and examined in detail the last and record-breaking flight, where the X-2 became the victim of three distinct coupling modes, one leading directly into the next, eventually destroying the aircraft and killing the test pilot Capt. Milburn “Mel” Apt.
Reconstruction of the event from historical data included an analysis of the variation of key stability derivatives with increasing Mach number and how these contributed to the aircraft’s departure from controlled flight.
AT ITPS we strongly believe that the history of flight test and the lessons learnt from past projects is a necessary element in forming the culture and the mindset of future flight test professionals.
I completed the first phase of Variable Stability modification of the ITPS 787 simulator. The sim is equipped with a Variable Control Loading system (yoke and rudder pedals) which, when combined with the different flight models, provides the students with a complete learning experience in appreciating the airframe inherent flying qualities and how they may be influenced by the FCS characteristics.
For the time being the sim is fully based on Lockheed Martin Prepar3D simulator, but more options are examined for the next phases.
Overall a great training tool, I very much enjoy it!
Signed a new contract for the full-time position of Chief Academic Officer and Flight Test Instructor at ITPS, responsible for the soon expected MSc program, possibly the best position I can get anywhere in the world.
I highly appreciate the offering of the company and I feel pumped up to make a critical change in its progress. It’s not going to be easy, it’s going to be hard, but that’s exactly where the challenge lies and my excitement.