BVR MAR/E Pole/Rtr
peanuthead last edited by
Are Minimum Abort Range (MAR), E-Pole, and Rtr the same thing? They all sound very similar by definition: minimum distance I can turn and drag the missile out. Below is how I engage BVR, am I doing this wrong?
Fly Fast (>350 knots) and High (>25,000 ft)
Lock up the bandit and fire the slammer at “M18”
Crank and slow down until “Pitbull”
Drag if still outside Rtr; if inside Rtr, I will notch, dive, then turn back into the bandit for another shot.
My 350 knot floor seems low because I sometimes have AG stores. Do you always jettison and discard your AG mission when engaging BVR?
Cik last edited by
MAR is the range at what you can evade the missile by turning into the beam and dragging, E-pole is the component of MAR dependent on you (IE, your energy, not the enemy’s) RTR is the range at which your PK approaches 100% kinetically (IE, if he executes a maximum efficiency turn-and-run maneuver he will likely still die.)
you should measure your speed in mach, instead of knots. 25,000 is not particularly high.
“M18” isn’t a particularly good measure. use the indexer to gauge RTR and then fire at a time dependent on the strength of the enemy and his range and PK.
crank and do not slow down. slowing down is almost never good in BVR. crank and dive to gain speed if possible.
if a missile is on you should dive, change aspect and angle, go to the beam and get below the missile. run lots of countermeasures. if necessary you can full defend and let your wingmen handle the bandit(s)
jettisoning is wise if you think you are at a large energy disadvantage, or the enemy is on par with you (SU-27S/MIG-29S/MIG-31 etc) or both. jettisoning is not required if the enemy is inferior or you have a very high energy advantage or if the enemy fighter is already being engaged and is busy with somebody else.
Redshift20 last edited by
One is tactical execution ranges and the other is the DLZ of the AIM-120. The ranges are part of an intercept timeline that helps the lead make decisions and control the flow of the fight where he can. Typically wingmen will be sorted by the flight lead, either on the fly or in a pre-briefed fashion (1 locks lead, 2 locks trailer), or via MTR (min target range) contracts where the wingman/other element may self designate if lead has not sorted by this range. Usually missiles can start being fired after everyone is sorted, so once you call lead “2 SORTED WESTERN” you could have it pre-briefed to be the time to start shooting. For it to work well, the wingmen can’t waste time not killing which is the most common error. On timeline I notice if we target at 30 NM, sort at 25 NM, we can typically start employing by 23 NM, enter the crank and then make a decision to SKATE or BANZAI between 15 to 18 NM depending on the threat and reach MAR (which is an emergency abort procedure and shouldn’t be reached often if you’re paying attention) at 12-13 NM for most threats excluding SU-27 and up.
The other side you’re talking about is the missile DLZ, which is on the AIM-120 itself of course, not the flight or individual aircraft. Between RAero and RMin is the entire DLZ, it also expands once you are within 125% of RAero. Between RPI and RTR is the sweet spot with a reasonable pK and obviously once you reach RTR your pK is extremely high. Most shots with a good reliable kill ratio would be somewhere between RPI and RTR. Both the DLZ and execution timeline are in a nutshell rulers for you to use while in BVR combat so you can quickly gain the SA on where you are in the timeline and employment gameplan. Post release you enter the crank or notch based on a matrix, that essentially boils down to: not spiked, wingman isn’t spiked are winning cues with a good shot on timeline go BANZAI flows, losing cues are spiked or wingman spiked, notch for up to 15 seconds then go out on a SKATE flow. It’s good to generally at least get the missile to HPRF guidance (Huskey) and if you can of course a full MPRF (Pitbull) if your winning/losing matrix allows. In general if you reach HPRF you stand a high chance of a kill on the target. MPRF is even better… you can find the mode the missile is in on the lower right hand corner of your HUD with “A00” for HPRF, “M00” for MPRF, and “T00” for time to impact. The numbers stand for the seconds to the next mode or event.
BMS manual has a lot of information, the AMRAAM section of the book, you can learn about intercepts, timelines, and execution from the MCH which is in the BMS docs section of your install!