Original implementation by Simon and Holt Motorization of the trim wheel requires extensive planning, engineering, and trial and error. Parts required: Airbus Pedestal and throttle quadrant with trim wheel mechanism intact 10 turn precision potentiometer (Vishay model 534) Custom gear mounting disc plate Custom potentiometer mounting plate 4 rods (6 mm diameter, 140 mm length) … Continue reading
11VU Throttle Quadrant 2139VC Backlight Trim E (+5 VDC) / F, G (Gnd) Backlight Gravity Gear extension A (+5 VDC) / B (Gnd) Backlight Gravity Gear extension C (+5 VDC) / D (Gnd) 2145VC Instinctive Disconnect Autothrust (L lever) A/C 2146VC Instinctive Disconnect Autotrust (R lever) A/D 8KS1 (Throttle Lever, Engine 1) Plug A Potentiometer … Continue reading
Some notes from Simon: Opencockpit DC Motor Board (interfaced with SIOC) Takanawa 555 metal gear DC motor, attached to home made plastic motor carrier bracket Lower trim axis rotates six times, multi-turn pot rotates ten times; requires a gear ratio 1.5 or 1.6 (45 vs 30, or 48 vs 30 teeth) Original movable joint if motor … Continue reading
There are several ways to motorize the trim wheel of the Airbus. The A320, unlike the Boeing 737, has autotrim built into the aircraft systems. Boeing pilots are required to trim the aircraft to an angle of attack of 1 G — this is done with the trim switch on the yoke. On the A320 … Continue reading
