Hi...!
Lately I was performing more tests.
First of all, I was mistaken about the altitude setting for manual targeting of the BS:
it must be the Indicated Altitude.
I had seen the error when I tried to repeat my tests wih winter maps (for maps with OAT between 20 and 25 ºC @ MSL, at an altitude of 5000 m the difference between True Altitude and Indicated Altitude is practically negrligible).
I've made other tests, this time including the effect of the wind to see how it affects the calculations for manual targeting.
The observed effects (
always with manual targeting) were:
1) Always, and regarddless of the wind direction and speed, it's needed to calculate the Ground Speed (GS) and the Wind Angle Compensation (WAC).
This is best done with an E6-B Flight Computer.
2) In order to mantain the True Course to the target, the aircraft must be pointed to a True Heading = True Course + WAC (or -WAC, regarding if the WAC is to the right either to the left).
3) For nose wind GS is less than TAS. Conversely, for tail wind GS is greater than TAS.
4) GS, and not TAS, is the speed input for the BS. TAS may be used only when Wind Speed = 0 (this is the only case in which GS = TAS, as it was until the patch 4.09, when the wind wasn't included in the FMB).
5) Indicated Altitude is the other input for the BS.
6) The BS must be aimed using its Side Slip command, with an angle = WAC, but with the opposite sign; i.e., if WAC = -7º then side slip angle = +7º.
7) The bomber must mantain both the True Course and True Heading, at least until the bombs are released.
If all the above is satisfied, the cross wind will make the bombs hit on the target.
