Historic Spitfire Mk1/1a loadout

[winny]

Originally Posted by Vengeanze

What you mean pattern convergence changed pretty quick?

I like pattern as I prefer z&b (even though I fly brits).
Guess point convergence is good if one sneaks up.

You got more info on which type pattern or point that was used for what and by whom and why?

It's hard to find concrete evedence of what the 'Pattern' was but it wasn't a single point (if anyone knows what it was let me know).

Fred Roberts just says that initially they set the guns to fire a pattern and that after Dunkirk pilots asked for them to be converged to a point (Quote: " the size of a dartboard"). I've seen photo's that appear to show the target they used to align the guns to this pattern and it looks like it was 4 points (roughly high and low and left and right) about 4 or 5 feet left to right and maybe 3 or 4 feet top to bottom (it's hard to tell). It's in a book I have somwhere, I'll try to find it. So I'm guessing they 'paired' the guns.

Pete Brothers (RAF) says that in order to make sure you killed what you were shooting at you needed to get in close, very close, and the original pattern meant that, because the guns fired upwards slightly, (11 degrees I think) when you got in close your bullets went over the top. He started at 250 yards, single point but then went to 50 yards. (This was for the 8 x Brownings) simply because it was "much more devastating" and accurate. He preffered to fly through the rear-gunners crossfire "collecting a couple of holes, if you were lucky" kill the rear-gunner and then get as close as possible and give them a good 4 second burst - He reckoned even the bombers would go down from a 4 second burst at 50 yards.

200 yards seems to have been the most used distance on average and was more effective for head-on attacks, a 2 second burst starting at 400 yards into the cockpit, then turn down the line and try and get another one. Then get the hell out of there.

Another bit of interesting info from Fred Roberts was that the only person allowed to fire the guns was the pilot, the armourers aligned the guns using a periscope that looked down the barrel, they never test fired them unless the pilot wanted to.