N43340 —

N43340 is reg to a 1943? BOEING E75 (Constructed as a PT-13D s/n 42-17836 by Boeing)
Some history at: http://www.aerialvisuals.ca/AirframeDossier.php?Serial=25025
Over 77 yrs and lookin’ good!!
SUPER THANK YOU! to everyone who helps keep these Ol’ historical birds flying

This may be helpful:
PT-13 with a Lycoming R-680 engine. 2,141 total all models.

PT-13 Initial production. R-680-B4B engine. 26 built.
PT-13A R-680-7 engine. 92 delivered 1937-38. Model A-75.
PT-13B R-680-11 engine. 255 delivered 1939-40.
PT-13C Six PT-13Bs modified for instrument flying.
PT-13D PT-13As equipped with the R-680-17 engine. 353 delivered. Model E-75.

PT-17 With a Continental R-670-5 engine. 3,519 delivered

Stearman 75
(a.k.a. X75) Evaluated by the U.S. Army as a primary trainer. The X75L3 became the PT-13 prototype. Variants of the 75 formed the PT-17 family.

ENGINE VERSIONS

Generally all the Stearman airframes are the same with the only major difference being the engine installed.

see http://www.stearman.at/boeing_stearman_technical_data.html

I see this airplane flying over my house in Greenville, SC, occasionally. Looks great in the sky. I can identify it without looking up based on the engine sound.