rexford Posted February 23, 2003 Share Posted February 23, 2003 The Tiger Fibel presents a method of aiming at 2m high targets that suggests a high percentage of first shot hits (see http://www.geocities.com/tigerfibel/tigerfibel.htm and look in the section on Elvira wird erschossen, under Richtschuetze). Setting the gun elevation for a 940m range and aiming at the bottom of the target results in a mean trajectory that will never be more than 2m above the target bottom, suggesting that every shot hits the target. While the use of the above aim process suggests a very high first shot accuracy, center of mass aim with a range estimate for each situation can be more effective over a wide range of target distances. The aiming method described in the Tiger Fibel for targets to 940m range, which is sometimes referred to as battlesight aim, was compared to center of mass aim by computing the first shot hit percentage. Random round to round scatter was applied to the theoretical trajectory, and center of mass aim was based on average range estimation errors of 10% (what Tiger crew was expected to attain) and 25% (average crew level). Averaging the hit probability at each range from 200m to 940m in 100m increments shows that center of mass aim with 10% average range estimate error is superior to the other cases: Battlesight aim, 75% average hit probability from 200m to 940m Center of mass aim with 10% average range error, 92% average hit chance Center of mass aim with 25% average range error, 71% average hit percentage The less than 100% hit chance with battlesight aim is due to the large number of shots where the mean trajectory is near the bottom or top of the target and scatter drives the shot off the target. The following table shows that for targets at 400m to 600m range, and 900m to 940m, the trajectory is very close to the target edge. Battlesight trajectory over bottom of 2m high target, 940m aim at bottom of target =========================================================== 200m, 1.31m trajectory height over target bottom at range 300m, 1.72m 400m, 1.95m 500m, 2.00m 600m, 1.87m 700m, 1.56m 800m, 1.05m 900m, 0.35m 940m, 0.00m 1000m, -0.55m 1100m, -1.65m If the average hit probability is computed from 200m to 1100m, which takes into account targets beyond 940m that are estimated to be within 940m, the disadvantage of battlesight aim to center of mass aim with 10% range error becomes even more pronounced: Battlesight aim, 63% average hit percentage from 200m to 1100m Center of mass aim with 25% average range error, 63% average hit chance Center of mass aim with 10% average range error, 86% average hit probability A Tiger crew with better than average range estimation error would find alot more of their first shots hitting with center of mass aim. One of the main advantages of battlesight aim is the reduction in time spent on first shot range estimation, since one only has to decide if the target is within 940m of the Tiger (which provide an error). 0 Quote Link to comment Share on other sites More sharing options...
rexford Posted February 23, 2003 Author Share Posted February 23, 2003 My fault, too early in the morning. [ February 23, 2003, 07:55 AM: Message edited by: rexford ] 0 Quote Link to comment Share on other sites More sharing options...
rexford Posted February 23, 2003 Author Share Posted February 23, 2003 Forgot how to delete a response. [ February 23, 2003, 07:51 AM: Message edited by: rexford ] 0 Quote Link to comment Share on other sites More sharing options...
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