Hey Guys,
The in-game Type VIIs are fitted as Type VII-C42s it seems , with 2 x twin 20mm and 1 x 37mm.
It would be nice as Doc Holiday suggested to have both the late war potent AA Type VII-C44 (?), and maybe even more importantly the early war Type VII-C.
Type VII-C
This was only the first of the "C" variants - there were others, but this is when the Frontboot, the combat U-boat, really took shape. The Type VII-C was widely produced and almost all U-Bootfahrer spent some time on a VII of one variant or another. There was not much change from the "B" variant to the "C" but most notable was the addition of two more torpedoes, stowed under the deck externally and the AA armament was beefed up.
Displacement................. 769/871 tons
Dimensions..................... 218' 3" x 20' 3" x 15" 6"
Engines............................ twin shaft diesel and electric
Power (diesel)........... 2,800 hp
(electric)....... 750 hp
Speed (diesel).......... 17 knots
(electric)...... 7½ knots
Bunkers........................ 105.25 tons of fuel oil
Radius (diesel)..... 8,500 miles @ 10 knots
or....... 6,500 miles @ 12 knots
(electric).. 80 miles @ 4 knots
or..... 30 miles @ 2 knots
Tubes (fwd)........... four 21 inch
(aft)............ One 21 inch
(carried fourteen torpedoes or fourteen)
Guns.......................... Single 3.5 inch deck gun
AA Guns.................. Single 37mm
two single mount 20mm
Crew........................ 44 men
Later in the war, snorkel was added, the 3.5 inch (88mm) deck gun was removed, the two single mount 20mm were changed to two twin mounts of 20mm. Various gunnery configurations were installed on different boats as the war drew on. Some of the boats had the 'Alberich' rubber coating as protection against sonar.
Type VII-C42
The Type VII-C42 was further improved with larger fuel bunkers and therefore, increased radius. The pressure hull was further strengthened and the conning tower was given armor plating, and there was more AA.
Displacement................. 999/1,050 tons
Dimensions..................... 225' 6" x 22' 3" x 16" 3"
Engines............................ twin shaft diesel and electric
Power (diesel)........... 2,800 hp
(electric)....... 750 hp
Speed (diesel).......... 16.75 knots
(electric)...... 7½ knots
Bunkers........................ 180 tons of fuel oil
Radius (diesel)..... 10,0500 miles @ 12 knots
(electric).. 80 miles @ 4 knots
Tubes (fwd)........... four 21 inch
(aft)............ One 21 inch
(carried fourteen torpedoes or fourteen mines)
Guns.......................... Single 3.5 inch deck gun
AA Guns.................. Single 37mm
two twin mount 20mm
Crew........................ 45 men
Later in the war, snorkel was added and the AA was increased to either two single mount 37mm and some had the quad mount 37mm AA guns. The 3.5 inch (88mm) deck gun was removed.
Type VIIC44(?)
Sincerely
Kopfdorfer