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Piper PA-31-310 · 1969 · Watonga, OK
N101YB is a 1969 Piper PA-31-310 (serial 31-406), registered to Cowan Lance E (individual) in Watonga, OK. Its FAA registration is recorded as v and expires June 2029; the airworthiness certificate dates from March 1969 (57 years ago). It carries 2 Lycoming TI0-540 SER engines rated at 310 hp each (620 hp total), the engine on 91% of registered Piper PA-31-310s. Its Mode-S transponder broadcasts the ICAO 24-bit address A00A93. It is one of 128 Piper PA-31-310 aircraft on the FAA registry. Cowan Lance E holds 2 aircraft on the registry.
Source: FAA aircraft registry (public record). Community reviews and photos below.
106 of the 117 registered Piper PA-31-310 carry this engine (91%), across 9 engine variants on the type.
Source: FAA engine reference (ENGINE.txt), matched on this registration's engine code.
A Piper PA-31-310 needs roughly 2,700 ft of runway for takeoff at sea level (takeoff distance ~2,325 ft plus a 15% safety margin). Check it against a destination airport →
Planning estimate for takeoff only — excludes landing distance, wind, density altitude, and contamination. Verify against the aircraft's POH/AFM.
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Commonly available reference sources for the Piper PA-31-310. Always confirm against the manufacturer's current, authoritative publication for your specific aircraft.
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Calculate density altitude, takeoff roll, and climb performance for a Piper PA-31-310 at any airport.
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