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1943 Boeing/Stearman E75Single-Engine Piston Aircraft • OR, USA

This 1943 Boeing/Stearman E75 (N450UR) is a historically significant biplane with direct ties to Apollo 8 Commander Frank Borman, who previously owned and flew this aircraft. The airframe shows 632 total hours and underwent a complete custom restoration in 1983, featuring a rare 4-aileron conversion and a Pratt & Whitney R-985 engine upgrade via Serv-Aero STC. The powerplant has 272 hours since major overhaul (SMOH) against a 1,200-hour TBO, paired with a Hamilton Standard 2D30-421 aluminum propeller showing 272 hours since propeller overhaul.

Maintained under VFR flight rules with complete logs available, this Stearman stands out with...

Year
1943
Make
Boeing/Stearman
Series
E75
Model
E75
Tail #
N450UR
Serial #
75-5300

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Specifications

Category
Single-Engine Piston
Intended Use
Classic / Antique, Military / Warbird
Flight Rules
VFR
Seats
2

Hours, Logs & Inspections

Total Time
632 hrs
Engine 1 Time
272 hrs (SMOH)
Prop 1 Time
272 hrs (SPOH)
Logbook Status
Complete Logs

Additional Equipment

Aileron Conversion

Serv-Aero STC - STC for the conversion

Engine Conversion

Serv-Aero STC - STC for the R-985 engine conversion

Exhaust System

Serv-Aero STC for the R-985 engine conversion

Aileron System

4-aileron conversion

Interior & Exterior

Paint Year
1983
Exterior Notes
Fully restored custom 4 aileron 450 hp Stearman

Engine & Propeller

Engine Type
Piston
Engine Count
1
Engine Make
Pratt & Whitney
Engine Model
R-985
Engine Power
450 HP
Propeller Model
Hamilton Standard 2D30-421

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Aircraft Location

OR, USA

Listing Details

Used
For Sale

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First Seen: May 14, 2025

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