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RAF "CAPTAINS of AIRCRAFT" COCKPIT MAP for BOMBING RAID on KOLN in GERMANY (Cologne)
A "CAPTAINS OF AIRCRAFT MAP" was essentially a shorthand 'route plan' to be carried in the cockpit, which due to its handy size allowed easy reference as a mid-flight checklist for planned direction changes in the plotted course. All kinds of other (much larger and more detailed) charts and maps would have been used to plan the mission in advance, but a "CAPTAINS OF AIRCRAFT" map always made it into the air.
Various heights and instructions are also included, and the codewords "HAM" and "BONE" have been written beneath the target name with the letter "B", suggesting that they represent 'friendly' ID callsigns when returning to base after the raid.
In addition, a rough itinerary has been added, with some discernible abbreviations such as "SE" (Start Engines), "TO" (Take Off) etc. The triangle appears to show the intended time for the dropping of the payload, so it may be possible to do further research on the actual date of the raid.







 
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A very rare WW2 RAF "CAPTAINS of AIRCRAFT" COCKPIT MAP with operational markings for a BOMBING RAID on the German city of "DORTMUND" in the RUHR VALLEY.
A "CAPTAINS OF AIRCRAFT MAP" was essentially a shorthand 'route plan' to be carried in the cockpit, which due to its handy size allowed easy reference as a mid-flight checklist for planned direction changes in the plotted course. All kinds of other (much larger and more detailed) charts and maps would have been used to plan the mission in advance, but a "CAPTAINS OF AIRCRAFT" map always made it into the air.
This example has been used to show (in red) the main areas to be avoided due to known heavy concentrations of enemy 'flak'. Various heights and speeds are also included, and the codewords "GHURKA" and "HOUSEFLY" have been written in the margin with the letter "B", suggesting that they represent 'friendly' ID callsigns when returning to base after the raid.

In addition, a rough itinerary has been added, with some discernible abbreviations such as "SE" (Start Engines), "TO" (Take Off) etc. The triangle appears to show the intended time for the dropping of the payload, so it may be possible to do further research on the actual date of the raid.







 
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Detail einer Daimler-Benz DB 601 Propeller einer Heinkel He 111 der Kampfgeschwader 53 am Flugplatz Lille-Nord (Wambrechies), Frankreich, ca. 1941

E Engineman



 
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Yes, a totally incorrect ID.
This is actually a supercharger impellor (Laderluftrad) from a JUMO 211 B or D. This photo shows the Impellor from the rear and the 14 "spouts" are where the air is discharged into the spiral supercharger case (Volute).
The strange design with "spouts" instead of an open "wheel" was a JUMO design to reduce losses across the fit of the impellor and the case. In fact, turbulence losses were very high in this design and JUMO soon changed to a slightly more conventional double-shrouded impellor on later engines.

Eng
 
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Yep .. that's the Char B1 Bis BOMBARDE nr 254 BAT 8/15 (15em BCC). There is a couple of her other shots in the thread.





 
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How usual was to TO in one place and land in another one?
 
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Captured beute french Renault FT adapted




 
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It's actually a Renault R35? The suspension and overall shape don't match the FT17
 
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