Ok...I know this has probably been discussed to the point of making people puke. Well this post has nothing to do with the "Rightness" or "Wrongness" of the Head on attack. It has to do with the physics of the subject. So here goes.
You are on a routine fighter sweep when you spot an enemy aircraft 4k off your right side. You turn in his direction to begin your attack. Suddenly you realize that the closing distance is now 2k..and closing fast.
For the following calculations the closing speed of the two aircraft is 600mph. Since AH2 uses yards as a measure of distance the closing speed becomes 293.333 yards per second. This means that at 2k you have about 6.818 seconds to make a decision.
Decision 1: Turn away from the attack.
Decision 2: continue your course until you are closer.
At 1000 yards you now have 3.409 seconds to make a decision. Given the average reaction time of a human you will travel 104.485 yards before you recognize the distance (Velocity* Reaction time...293.333*.0356). Even with an average aircraft you can still avoid a head on attack at this range. But lets say you decide to fire a short burst...say a 1 second burst.
Reaction distance you will fly is 104.485 + 1 sec burst= 397.8187 yards traveled. This would place you at 602.181 yards from the target. You would have about 2.045 seconds left to turn/climb/dive away.
If you wait until you are 600 yards from the target and you decide to fire a short burst you would be at 202 yards from the target and have less than .5 seconds to make a turn to avoid contact with the enemy plane.
Although the best attack option in a fighter vs fighter engagement is to attack from the rear, there are times when circumstances place you in a very short window to make a decision, react, and then evade. The head on attack gives your very little time to determine the best course of action.
APPROXIMATE DISTANCE AND TIME TO CONTACT. (600mph closing speed.)
Distance Time
2000 6.818181818
1500 5.113636364
1000 3.409090909
600 2.045454545
400 1.363636364
Velocity 293.3333333 yards per sec
Formulas Used.
Velocity in Yards Per Second=(yards per hour*miles per hour)/seconds in an hour
Time to impact=Distance/Velocity
Distance traveled during reaction time=Velocity*reaction time
Variables (Reaction Time) You can test your reaction time here:
http://getyourwebsitehere.com/jswb/rttest01.htmlAssumptions: Both aircraft are traveling at a combined closing speed of 600mph, directly at each other with no deflection. There are many other factors that affect impact avoidance.