Final Approach Horizontal Stabilizer Rudder 
Vintage Aviation News
JANUARY 30, 2025
A short 18 months later, on August 13, 1937, the XPB2Y-1 took to the skies for the first time, revealing plenty of room for improvement lateral instability was a major problem for the deep-hulled boat, so the single tail fin was augmented by two smaller fins on the horizontal stabilizers.
Aerotime
JULY 19, 2024
The primary flight controls on the DC-10 (ailerons, rudder, elevators, spoilers) were all operated by hydraulic pressure and the first officer was quick to realize that his controls were unresponsive to his inputs. During the final approach, Haynes noted a high sink rate alarm from the aircraft’s ground proximity warning syst em (GPWS).
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