FL 22600
Before 1939 the Fl 2600 was used, particulary this black one was used in the Spanish civil war in the Heinkel 45 Pavo
Long before the Second World War Germany’s clock production was self sufficient, they did not need to import clocks from Switzerland, when the production of airplanes, tanks, trucks… was reaching the top. From 1939 these clock were used:
BO-UK-1 FL 23885
The Bo-Uk-1 FL23885 Blindfluguhr (blind-flight or instrumental flight), made by Junghans, was designed for flights without visibility.
It provided all the necessary about time in an airplane,
- time,
- flight time (by selecting with the arrow in the rotating bezel, the minute hand during the take off),
- timer. By preesing on the button situated on the bottom part the chroni stars, the second hand would start moving and the minutes counter (hand at 6 o’clock) starts at the same time. If you click the button again both hands stops, finally the next push resets both hands to zero. The timer was necessary for approachs with no visibility.
This clock was very valuable, pilots were instructed to take it and the gunsight before leaving the plane after a crash or emergency landing.
During the time it was being built, 5 models were made, changing along the time from brass bezel and knobs, to bakelite.
The main diferent was the handsetting lever, pulling the knob in first versions, next hand setting at 3 oclock position, and last hand setting at 5 oclock.
The Bo UK 1 has power for 36 hours, 11 jewels, and a 30BZ caliber.
Dornier 335 Pfeil
Junker 87 Stuka
Heinkel 111
BO-UK-II FL 23886
FL 25591
Junghans J30D FL25591 comunication center.
Eigentum der Luftwaffe (Luftwaffe property) can be read below.
The last mechanical Junghans with Valjoux 551 movement
