https://www.jalopnik.com/2119278/giant-engines-that-powered-b29-superfortress/
The Giant Engines That Helped The B-29 Superfortress Rule The Skies
Mar 14, 2026 - The B-29 Superfortress used four Wright R-3350-23 Duplex-Cyclone engines, each pushing out 2,200 to 3,500 horsepower, to dominate in World War II.
the giantengineshelpedbsuperfortress
https://warbirdregistry.org/b29registry/b29registry.html
Warbird Registry - Boeing B-29/B-50 Superfortress - A Warbirds Resource Group Site
This site tracks the history of all Boeing B-29/B-50 Superfortress's that survived military service.
resource groupwarbirdregistryboeingsuperfortress