Attack Against Bomber Formations, USN Training Series No. 7, 1944 Fairey Battle 25 inches diameter and ~7

25 inches diameter and ~7 inches long

The dial is 1 7/8 inches diameter and is ~1

Two manuals are available

The indicator displayed airspeed from 60-850 knots

Here is a WWII-era Second Air Force handbook of Standard Procedures for the Flight Engineer

Attack Against Bomber Formations, USN Training Series No. 7, 1944 Fairey Battle 25 inches diameter and ~7This original WWII era training booklet, Attack Against Bomber Formations, was published in 1944 by the US Navy Aviation Training Division to prepare fighter pilots for attacking enemy bomber formations. The booklet describes and illustrates a number of aerial tactics in lay terms. This 32 page booklet is in very good condition given its age. Measures 8 x 10 inches.