@Falcas could you please check if the Offset angle is correctly calculated ?
to respect the key points following:
climb & dive angle (20° & 15°)
release height (2000ft)
speed 500cas
G 3.5
Angle off 40
It is impossible to obtain an Offset Angle equal to 25.5°
after drawing a schematic on paper, I checked that the Offset Angle is lower than 25.5°, and I found 17°
AOD is correctly calculated : AOD = (release altitude/tan [dive angle]) - bomb range = 2000/tan (15 degrees) - 4902=2562ft
MAP distance = bomb range + tracking distance with :
Bomb range = 4902 feet
Tracking distance = 1.69 x GS x tracking time
MAP Distance = 1.69 x 500 x 5 = 4225ft ~ 0.7 nm
text alternatif
Vertical tracking distance = 513 x sin (15 degrees) x 1.69 x 5 = 1121 feet
Track point altitude = pickle altitude + vertical tracking distance = 2000 + 1121 = 3121 feet
Apex altitude = track point altitude + (dive angle x 50)
Apex altitude = 3121 feet + (15 x 50) = 3,137 + 750 = 3871 feet = Approximately 3,900 feet
Pull-down altitude = Apex altitude - (climb angle x 50) = 3871 - (20 x 50) = 2872 feet -> correct
Pop-to-pull-down distance = (Apex Altitude (AGL) x 60)/Climb Angle = 3871 x 60/20 = 11613~1.9nm