Sperry retractable ball turret.

[lyric1]

Found a manual on line for this turret.
Interesting that the gun convergence was set at 1000 yards  Not sure what we have in game 600 yards is what I seem to recall mentioned in the past for guns on bombers?



http://www.scribd.com/doc/50702552/1944-T-109-The-Sperry-Retractable-Ball-Turret-SPERRY-250SH-1

[bustr]

Thought HTC set convergence in game multiple guns positions to 500yds. AAF taught to not open up until 2000ft(666yds). It's possible Hitech reads the manuals. Wonder if 999000 sleeps with this one under his pillow?

Has a link to pop it up as an Adobe Flash Book. Chapter II covers crew position gunnery with excellent pictures.

1944 Aircrewman's Gunnery Manual
http://aviationshoppe.com/1944-aircrewmans-gunnery-manual-a-18.html

[Mongoose]

Found a manual on line for this turret.
Interesting that the gun convergence was set at 1000 yards  Not sure what we have in game 600 yards is what I seem to recall mentioned in the past for guns on bombers?

  That convergence range is for all the guns in your bomber.  If you just pull the trigger on your joystick, then you fire a single gun mount.  If you press the "N" key, then you fire all the guns that can point in that direction, all aimed where your cross-hairs are pointing, and set to converge at 600 (?) yards.