Thanks for that. I never knew the units.
So I just tested this and I'm still having issues.
QFE = QNH - (Alt in meters / 9.3)
Target is at 3038 ft ~ 925.98 m
QNH is 760 mmHg ~ 1013.08 hPa (x1.333)
I tried three things:
1. Calculate QFE = 1013.08 - (925.98 / 9.3) = 913.51.
I used that, but the bombs always land further than the CCIP says they should.
2. Use QNH of 1001.42. This was the QFE given in the briefing. I think this is for the airfield I'm at.
QFE came out to 901.85.
The pipper was above my velocity vector. Can't use that.
3. I used the given QFE of 1001.42 instead of calculating anything.
The pipper was so far below my HUD there was no way it was right. The pipper doesn't even come into the HUD at level flight and 100m above ground until the QFE is below 920 or so.
My speed was right, my altitude was right, but something is wrong with the QFE. I'm sure it's something I'm doing wrong, but I haven't been able to figure this out.
EDIT:
I tried some experimenting. I placed my spawn at the same airfield I was attacking. The given QFE was 910.38 hPa. This was spot-on.
Still don't know what's wrong. I don't know how I was supposed to get 910.38 hPa.