Boeing XB-47D experimental bomber - photo

The Boeing XB-47D was an experimental bomber powered by turboprop and turbojet engines. Boeing hoped that this configuration would increase the unrefueled range of the aircraft at high cruise speeds.

https://s3-us-west-1.amazonaws.com/h...7d_propjet.jpg


Previously:

https://www.homemadetools.net/forum/...137#post134465
https://www.homemadetools.net/forum/...192#post149880
https://www.homemadetools.net/forum/...255#post134813

How do engineers "hope" when it comes to calculating range? Aspiring pilots want to know!
Engine (y) consumes (gph) amount of fuel in (t) period of time X amount of engines. Factor that into drag calculations for the airframe and load capacity.

Assuredly Marv knows, and will correct those algebraic terms...