Altimeter, 35,000 FT, British RAF F6F Hellcat When viewing the ground through

When viewing the ground through the scope while in flight

made by Friden part number 8DJ19  was used across multi-engine US military aircraft during WWII

PBY Catalina

25in square

I have also confirmed its use in the P-2E by its parts manual dated 1966

Altimeter, 35,000 FT, British RAF F6F Hellcat When viewing the ground throughThis Altimeter, made by the British aircraft instrument manufacturer Smiths, indicates aircraft altitude up to 35,000 ft. The pointer indicates altitude from 0 20,000 ft with one 360 degree rotation, using the scale along the outer perimeter. Once past 20,000 ft, the pointer indicates altitude along the inner green scale, up to 35,000 ft. With only one pointer and markings every 2,000 ft, this would be regarded as a 'non sensitive' altimeter. The