It wasn't until Airbus begun excavation to extend the length of their runway in Finkenwerder, Germany, that these long forgotten sub pens from WWII were rediscovered.

The pens, code named Fink II, were the largest in Germany. 151 meters x 153 meters with a roof 3.5 meters thick, Fink II's five boxes birthed three U-boats each for a total of 15 U-boats of types VII, IX and XXI.

FinkII became the target of an Allied bombing mission for the first time on April 4th, 1945; but emerged from the attack with no significant damage. Five days later, Fink II was attacked a second time, this time with 15 enormous "Tallboy" and two "Grand Slam" bunker busting bombs, with a number of direct hits scored. Despite penetrating the bunker in six places, little damage was done to the subs inside, although two VIIC boats were damaged by shrapnel and one floating dock sunk with U-677 and U-982 in box 5.
http://www.uboat.net/flotillas/bases/hamburg_bunkers.htm
View in Google Earth Categories: Military - Historic, Sea - Military - Submarines
Links: www.uboat.net
By: Pdunn

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AlbinoFlea picture
@ 2006-04-26 20:40:09
This area very freaky after April 2006 database update. Original site obscured by semi-transparent overlay.
Pdunn picture
@ 2006-04-26 23:03:34
That is odd. I wonder if the original site could have been taken before the area had been dug out. Evidently, the thick walls of the old pens wreaked havoc on Airbus' efforts to extend the runway, causing extensive delays.
Pdunn picture
@ 2010-12-26 15:53:12
I came across this YouTube clip showing the April, 1945 demolition of the pens using 30 tons of explosives:
http://www.youtube.com/watch?v=5M67oS0g4pE