View Full Version : PDI and fuel indicators...

03-12-2005, 11:37 PM
In the b-25's cockpit there is a tiny indicator that says "PDI"... Anyone knows what that might be??? And something else: There are three fuel indicators.... why???

03-13-2005, 01:39 AM
I don't know a lot about the B-25, but...

Three fuel indicators would be for three fuel tanks. Probably fuselage, and two wing-root tanks.

03-13-2005, 03:38 AM
Have a look at the B25 Cockpit reference (http://www.partizanska-eskadrila.com/reference/B25J.htm)

03-13-2005, 05:35 AM
PDI - Plane Drift Indicator. The PDI indicated any sideways drift while flying.

03-13-2005, 06:35 AM
The PDI was used by the pilot to keep the a/c on course while on the bomb run. The Norden bomb sight drove the PDI when it was in operation. Once the bombadier told the pilot that he had the target centered, the pilot would steer the a/c to keep the PDI centered. If their drift ASSUMPTIONS were correct, that the bombardier entered into the Norden, then they would probably hit the target if the PDI were centered when the bombs were released.

03-17-2005, 10:24 AM
Hey Guys! Does anyone know how much fuel the He-111 has? I've set it to 50% and the guages still showed that it has 700l left in both tanks.