![]() What we do know is that the rocket in the C-5 is a bit bigger, so has a bit more fuel, hence the impulse change - and it is a pure boost, meaning that the rocket output is near constant over time. Not to mention those figures quoted above have no reliable source on them. And, these estimates are on the low sideĪ single range figure means nothing for an AA missile… what is the launcher altitude ? Target altitude and aspect ? At least closer to what these estimates are. But there should be measurable differences between the B and the C-5 in relation to performance. So were are talking about BMS is set in the late 90’s, early 2000 era. The D estimates are “approximate range = 80nm, WEZ estimated at 50nm”. And, these estimates are on the low for that! ![]() The D is far above the performance level of the B. Since the B is no longer in production (and is not listed in inventories), and the C-5 and C-7 are also slated to end there service life (as of 2016), the D variant is now in full production. The differences between them is not modeled. ![]() Since there is no way to get actual data on classified info. The C-7 “approximate range = 65nm, WEZ estimated at 35nm”. The B “approximate range = 25nm, WEZ estimated at 15nm”, while the C-5 “approximate range = 50nm, WEZ estimated at 25nm”. Since BMS has modeled the C-5, but both missiles are very close in relation to performance, something is a miss here. Although it does appear that the C is considerably more responsive to guidance, assuming that’s what the “Guidance Delay” field is used for. The C has a few aero advantages in AoA and a little less drag. ![]() It looks like the B might actually perform a little better in several areas and has a longer burn time (.5s), but the C puts out more Impulse, so I would guess at first glance they perform VERY similarly. With only some minor performance changes in the FM files. In BMS4 the only real difference between them (as I know) their kinematics because of different total impluse and thrust BMS they are identical from a DB perspective (IE: Guidance, tracking, damage) And if the are equally effective and both employed in pretty much the same weapon envelope why carry both the B and the C version? So with this question in mind im curious as to when best to employ each variant of the aim missile. Im thinking that maybe this happens because of a loss of maneuverability due to the increase in speed of the “C” variant missile? Im curious if anyone else has noticed if their misses occur more with the 120C than the “B” variant. From the manuals and forums I’ve drawn the conclusion that the 120B has a little better range over the 120C variant where as the 120C has slightly better speed over the 120B. Typically we carry 120Bx2 and 120Cx2 (eliminating the possibility of just using more B’s than C’s - we use them equally). Myself (as well as another MP pilot) have noticed that most of our AIM 120 misses occur with the 120C variant. ![]()
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