Adaptive Control Experiments and Flight Tests (ACEFiT)
E. Yamaguchi1, A. AlShareef1, A. Goel2, S. Ravela1, and D. Bernstein2
1 Earth Signals and Systems Group, Massachusetts Institute of Technology
2 Department of Aerospace Engineering, University of Michigan
Test: 4/3/21 @ 1630hrs - 1930hrs
Important: Refer to dropbox for system log (4-3).
Flight summary: Three flights.
Flight 1: A strange mode glitch emerged after a smooth take off and hold approximately 200AGL SE of the field (we suspect the new towers northside), which led to a strange path at altitude (high winds contributed), however, the aircraft successfully returned to flight field limits, with (Jimmy) spotting in his minivan. RCAC turned on and off.
- Flight 2: A short in-field back and forth, turns and figure eights exercising RCAC from takeoff itself.
Issues and comments
- Data Comm is still intermittent
- Landing gear breaks in ~5 flights.
- Airspeed sensor still not reliable.
- Not enough elevator control authority, increase moment arm.
- Aicraft oscillations when transitioning (to and from) RCAC.
- Next step: RCAC roll stress test with turns around a point, figure eight and chandelle.