They once planned a four engine King Air, it went like hell but only for 30 minutes. Kidding. 6000 hours King Air ( 90-100-200). Vacuum came from the pneumatic system (no pump) on each engine, either engine could power the vacuum system through a venturi. PT-6 is an example of excellence, bullet-proof. A joy to fly. 250 would be my choice for a personal aircraft.
(Written on 08/08/2020)(Permalink)
Boeing having a run of bad luck, everything they touch seems to turn brown. Much self-inflicted. On Mar 11 Boeing cashed a $13.8 b loan to start paying these fines and litigation.
(Written on 13/03/2020)(Permalink)
Same. Billings, MT. KBIL DC-9-30 (C9B). Navy. Runways and taxiways fine but the FBO parking for RON aircraft was weak. FBO had us park on 4x8 sheets of 3/4 inch plywood. Worked fine but taxiing out we blew those plywood sheets across the FBO parking lot.
(Written on 02/11/2019)(Permalink)
Bondo.
(Written on 23/08/2019)(Permalink)
Indeed, hats off to Evac, Sheriffs, Search/rescue, Coast Guard, etc. that do this all day-every day. Cirrus-I don't know, I do not own or fly one, just hear-say from friends: Insurance is double than similar a/c. All deployments are total loss.?
(Written on 16/08/2019)(Permalink)
According to sources,(from Rueters, 3 un-named that listened to the CVR) the stick shaker and stall warning were blaring on the Lion CVR. Most difficult to fly especially at night. Manufacturers are deferring more and more flying duties to the flight computer. STOP. Pilots, know your systems (AOA) and how to fly the airplane.
(Written on 29/03/2019)(Permalink)
This may or may not be correct but I read that Thales made the AOA/Stall warning system for the Max. I have NOT verified.
(Written on 23/11/2018)(Permalink)
A function of the flight control computer, the MCAS activates when an aircraft’s angle of attack (AOA) exceeds a certain threshold based on airspeed and altitude readings, pushing the nose down to reduce the risk of a stall. The system operates only when the autopilot is off, flaps are up and during steep turns. It resets when the AOA falls below the threshold or pilots provide manual horizontal stabilizer trim commands. Not part of previous 737 designs, the system is a feature of new MAX series airliners, Boeing has acknowledged. But the MCAS is not covered in the MAX flight crew operations manual (FCOM) or in difference training instructions for pilots of earlier 737NGs, operators have noted. Boeing has issued an FCOM bulletin to 737 MAX operators warning that erroneous AOA data trigger automatic nose-down inputs and emphasizing that pilots follow specific procedures to keep the aircraft from descending uncommanded. The FAA mandated the action in a Nov. 7 emergency airwo
(Written on 16/11/2018)(Permalink)
From Boeing: The AOA is used to drive stall warning, stick shaker, stall margin info on airspeed indicators, pitch limit indicator. It comes from this: (this file wont take photos). Anyway, an AOA Vane on the side of the A/C, just behind that is a transducer which changes analog movement to a to an electrical signal. That signal is fed to both Air Data Computers which drives all the above. Failure of this unit (transducer) would create extremely dangerous conditions; stick shaker, stall horn (very loud), erratic airspeed, climb and dive, etc. Daytime VFR would be demanding (probably the source of the previous write-ups). Night IMC would most likely be fatal. That A/C required a maintenance check flight.
(Written on 09/11/2018)(Permalink)
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