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JRJacobs
11-22-2007, 05:42 PM
Gunery 102 - Lead
Now it gets a little harder. Good news, bad news.

good news - doesn't mater the size of the plane.
bad news - you now need to compute TWO vectors that change with angle and speed

Good News first
note
your aiming at the junction of the wing and the plane
you're diving on the target at 45 degrees
you're diving from his 6 o'clock

i16 just beyond the 2nd stadia line outside the ring
IL2 just beyond the 2nd stadia line outside the ring
Pe2 just beyond the 2nd stadia line outside the ring

SEE same lead regardless of size
for lead size DOESN'T matter

1) i16 just beyond the 2nd stadia line outside the ring
http://my.core.com/~jrjacobs/Leads/275KpH/275KpH-i16-45deg-6oclock.jpg

2) IL2 just beyond the 2nd stadia line outside the ring
http://my.core.com/~jrjacobs/Leads/275KpH/275KpH-IL2-45deg-6oclock.jpg

3) Pe2 just beyond the 2nd stadia line outside the ring
http://my.core.com/~jrjacobs/Leads/275KpH/275KpH-Pe2-45deg-6oclock.jpg



45 degrees up or down - on his 6

1) 225 Kph - Junction 1/3 way between 1st and 2nd Stadia line outside of ring
http://my.core.com/~jrjacobs/Leads/225KpH/225KpH-45deg-6oclock.jpg

2) 250 Kph - Junction 2/3 way between 1st and 2nd Stadia line outside of ring
http://my.core.com/~jrjacobs/Leads/250KpH/250KpH-45deg-6oclock.jpg

3) 275 Kph - just past 2nd Stadia line outside of ring
http://my.core.com/~jrjacobs/Leads/275KpH/275KpH-45deg-6oclock.jpg

4) 300 Kph - Junction 1/2 way between 2nd and 3rd Stadia line outside of ring
http://my.core.com/~jrjacobs/Leads/300KpH/300KpH-45deg-6oclock.jpg



45 degrees up or down - He's at 7 o'clock of your pipper
Same distance

1) 225 Kph - Junction 1/3 way between 1st and 2nd Stadia line outside of ring
http://my.core.com/~jrjacobs/Leads/225KpH/225KpH-45deg-7oclock.jpg

2) 250 Kph - Junction 2/3 way between 1st and 2nd Stadia line outside of ring
http://my.core.com/~jrjacobs/Leads/250KpH/250KpH-45deg-7oclock.jpg

3) 275 Kph - just past 2nd Stadia line outside of ring
http://my.core.com/~jrjacobs/Leads/275KpH/275KpH-45deg-7oclock.jpg

4) 300 Kph - Junction 1/2 way between 2nd and 3rd Stadia line outside of ring
http://my.core.com/~jrjacobs/Leads/300KpH/300KpH-45deg-7oclock.jpg



45 degrees up or down - You're closing in 45 degrees from his flank (offset) - He's at 6 o'clock of your pipper
A word about offset (or Angle off Tail (AoT)) no mater what angle you approach at, if you make him fly through the center of your sight, offset is automatic
in these pictures - make the green line (his fuselage) intersect the center of the sight and offset is calculated

1) 225 Kph - Junction 1/3 way between 1st and 2nd Stadia line outside of ring
http://my.core.com/~jrjacobs/Leads/225KpH/225KpH-45above-45offset-8oclock.jpg

2) 250 Kph - Junction 2/3 way between 1st and 2nd Stadia line outside of ring
http://my.core.com/~jrjacobs/Leads/250KpH/250KpH-45above-45offset-8oclock.jpg

3) 275 Kph - just past 2nd Stadia line outside of ring
http://my.core.com/~jrjacobs/Leads/275KpH/275KpH-45above-45offset-8oclock.jpg

4) 300 Kph - Junction 1/2 way between 2nd and 3rd Stadia line outside of ring
http://my.core.com/~jrjacobs/Leads/300KpH/300KpH-45above-45offset-8oclock.jpg



Lead changes with speed and angle
here are some examples from different views all at 275Kph
http://my.core.com/~jrjacobs/Leads/45Offset/z275KpH-45offset-2oclock.jpg


http://my.core.com/~jrjacobs/Leads/45Offset/z275KpH-45offset-4oclock.jpg


http://my.core.com/~jrjacobs/Leads/45Offset/z275KpH-45offset-9oclock.jpg


http://my.core.com/~jrjacobs/Leads/45Offset/z275KpH-below45offset-10oclock.jpg


Hope some of this helps you to visualize WHERE you need to aim

all screen caps are from the program Sniper's Corner_2.xls by Bruno & Abraxa

msalama
11-22-2007, 10:00 PM
Thank you Sir. A great visualisation of the problem right there. Much appreciated. S!

JRJacobs
11-23-2007, 11:11 AM
bump number 1
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