Good work mate!

Thank you!

This is awesome, MUCH better than the manual thank you.

Can someone explain to me what the numbers mean in "Lethal range centered on convergence" Thank you

I'll have a go, although I am no expert - hopefully an expert will be along in a minute

I guess it's the lethal range of being able to bring down the target given that you have ideal convergence and targeting, i.e. if the lethal range is 400 yards, and you have your guns set to converge at 400 yards for a 30-feet wingspan target and you get the sight exactly right over the target (with the wing tips of a 30ft aircraft between the lines) then that's ideal. They die.

There was an old post here that went through setting up the sight here:
http://simhq.com/forum/ubbthreads.php/topics/3341863/Re_How_to_use_the_gunsight_in_.html

I'm not sure if in the latest patch the wingspan needs to be from the center to the dot or just straight across though?

Let's see. Lethal range is a Fleaism. But it builds on the basic idea of convergence. If you set a convergence of 160m, then the bullets of all guns will impact at a single point in space at 160m (ignoring dispersion, shake, vibration, differences in powder load, etc). So, moving from own plane to target to infinity, the rounds angle in toward the convergence point, meet, then angle out to infinity.

Please refer to the diagram on the Sight Data page and the Spitfire data in the checklists.

The Fleaism of "lethal range" deals with these cones/angles. Assuming that a fighter's cockpit (or engine nacelle) is .8m wide, there will be a point both before and beyond the target where the cone of fire is narrower than the width of the cockpit, but not yet that single point in space. So if you set convergence at 160m, your bullets will be .8m apart at 137m, single point at 160m, and .8m apart at 183m. What does this mean?

If you are dead astern of your target, with a convergence of 160m, and aim dead center, you should have hits on target at a range of 137m - 183m. If your target is closer than 137m, or further away than 183m, then your bullets will pass harmlessly to either side of him.

Now this is based on geometry and does not account for dispersion, vibration, slip stream effects, etc. But it lets me know if I set convergence at 160m, and I fire dead astern at a target 100m or 220m away, I will most likely miss. Does this help?

Thanks

I had lost this awesome guide and found it here again. Thanks again! This should be included with them game!

EDIT: This should be stickied!

Many thanks, very helpful.