Amazing aircraft the B-29...
... a flight of 3 emergency landed in western Russia, Vladivostok I think.
The American crew got home, but we never got the B-29s back. Soon enough, the Reds reverse engineered an exact duplicate. The Tupolev Tu-4.
https://en.wikipedia.org/wiki/Tupolev_Tu-4

Originally Posted by astjp2

....Late in the war,... the R-3350 was equipped with direct fuel injection, something we think of as a new-age engine appliance. Unlike early fuel injection ... direct fuel injection puts it directly into the cylinder under pressure, improving mixture distribution and fuel economy...


For full disclosure, the CR in aviation engines is far less than for cars, for reliability purposes. I believe that made the early direct injection systems a bit easier to achieve.

- Art

65 Satellite hardtop 361/4bbl console 727 2.76
67 Satellite convert 383/2bbl column 727 3.23
67 Lancia Fulvia Sport 1.3 Zagato. Alloy body, 1.3L V4 DOHC 4-spd
67 Lancia Fulvia Rallye 1.3. Alloy panel, 1.3L V4 DOHC 4-spd
71 Alfa Romeo GT Junior 1300 Zagato, 1.3L 4cyl DOHC hemi 5-spd
82 Alfa Romeo GTV6 2.5L SOHC hemi V6 5-spd transaxle
75 Maserati Bora US spec 4.9L DOHC hemi V8 5-spd ZF
77 Maserati Khamsin Euro spec 4.9L DOHC hemi V8 5-spd ZF
07 Aston Martin DB9 6.0L DOHC V12 6spd transaxle