restored 78 year old P47 just fired up the engine, that had to be a nervous moment! The last time this engine ran, it was in New Guinea, 78 years ago, in 1944

 The Evansville P-47D-23 and the Farmingdale P-47D-22 incorporated several changes. The most visible difference was that both had 13-foot diameter, wide blade props.

The new 13-foot, wide-blade props were designed to take full advantage of the increased power available with water injection. However, they had the disadvantage of leaving only about 6 inches of ground clearance on landings and take-offs.

The P-47’s gained 400 feet per minute rate of climb with the new wider blade props, a huge performance improvement

https://www.aircorpsaviation.com/october-november-dakota-territory-air-museum-p-47-update-4