Radio Altitude Indicator (Altimeter), ID-236/APA-61 for AN/APA-61 Korean War A very cool item to

A very cool item to add to your collection

The loader had had a rotating periscope at their station

It is in exceptional condition for its age

It has a detector unit

5 inches wide and ~12 inches long in its case

Radio Altitude Indicator (Altimeter), ID-236/APA-61 for AN/APA-61 Korean War A very cool item toThe WWII era Radio Altitude Indicator, ID 236 APA 61 was a component of Radar Bombing Navigational Computer AN APA 61. The indicator was used to measure and indicate to the pilot the altitude over the terrain during flight. Made by Roller Smith. This unit looks to be originally of the AN APN 1 system and was modified for use in the AN APA 61 system. The nature of the modification is unknown. The precursor AN APN 1 Radio Altimeter was used in a number