The same is true for target also though.Īrmedupdate wrote:How does G change with deceleration? For example an airplane like the F-16 can go 9 Gs probably around Mach 0.5-0.8? However it can never pull as much at max speeds of Mach 2, once it decelerates with no aditional burn, how does the deceleration change the G capablity with each moment loss of speed? Once it reaches Mach 0.5 again can it pull the same number of Gs?(in this case negative G?)Īt sea level an F-16 can pull 9G from ~M0.6 all the way to top end - it can also pull 9G at M2.0 at certain altitudes. Of course lower altitude is better for maneuverability as control surfaces are more effective at lower altitudes. The missile thrust has to overcome the drag which is significantly higher at low altitude. However missiles can't maintain such hard turns very long when gliding as they'd lose speed and energy in doing turns.Įvery missile speed will vary a lot depending on altitude and nominally Mach 4 missile might go Mach 2.5 at low altitude and closer to Mach 5 if launched at very high speed and high altitude. It also probably can do high G turns even at medium range depending on engagement geometry and how well it can maintain speed in that particular engagement. It definitely can turn very hard longer when rocket motor is still burning. I think AMRAAM will be similar and can do max G turns when rocket motor is still burning or just burned out. Speed then is something like 750 m/s when top speed is 1250 m/s. For example VT-1 missile in Crotale NG SAM system can go up to 50 Gs but can still go 35 Gs 8 km away from launcher several seconds after the rocket motor has burned out. So at 82 km the AMRAAM can still be extremely manuverable against a 6 G target.ĪMRAAM like any missile will likely be able to achieve maximum G forces when their rocket motor is still burning but are able to achieve quite high G forces mid-flight. Since the average speed is around Mach 3.5 to reach that distance it is around 72 km. So by 70 seconds it can still save energy till it reached Mach 3 to 30 Gs where its most maneuverable to intercept 6 G plane. from an F-22 lets say the AMRAAM would have covered around 10 km in the boost phase before descending. The time it takes for a missile to lose 25% of its velocity after burn out at supersonic speeds. Then as it is in midcourse phase once it descends to Mach 3 it is the most maneuverable. So if the AMRAAM boost till Mach 4 at around 9 seconds it should be the most maneuverable in the middle of that phase(I beleive Jane's praised the WVR capablities of the AMRAAM) but it lessens manuverablity as it goes to burnout. It will be too fast to manuver at Mach 4(max speed achieved at boost burnout) and too slow at Mach 0.5(close to when operational range is reached) So the AMRAAM max g load is probably when the missile is at its medium speed level,(~Mach 3). The missile will require about five times the G capability of the target to complete a successful intercept.

Aim 120 max aoa