Ramjets have limited effectiveness at high AOA.
BBCRF seems to think this means the missile cannot perform high G manuvers when the ramjet is active, limiting its high off boresight capability and thus making it a useless colonial/british design of a weapon.
In reality, the missile is not intended to be used this way, as we have the ASRAAM for that, but also the extremely powerful boost motor is more than sufficient to get the missile to manuver up to its G limit off the rail.
RAMJET has strong limitations on the angles of attack and glide, given that the meteor rocket has only 2 air intakes, and not 4, the situation is even worse.
That’s why the Meteor performs a “bank-to-turn” maneuver when turning, instead of the usual “skid-to-turn” like non-ramjet missiles do. Like a fighter aircraft the Meteor rolls into a position where the air intakes aren’t covered by the missile body when turning so the air flows unobstructed. It takes longer to initate a turn but the airflow isn’t hindered while turning.
However, such a maneuver consumes a lot of energy.
Rolling a cylindrical airframe costs much less energy than you think (it’s not a plane with wings) and the missile only does it in the terminal phase of the approach where it starts to matter and if the target is heavily manouvering (so the missile has to pull high G-Forces). At Mach >4 you reach a 10 km target in less than 7,5 seconds. Not much time for a plane to do any maneuvering… Actually not even enough to do two changes of direction.
Fun-Fact: Tell the MiG-23 in game that rolling costs much energy. That plane actually accelerates faster while rolling :D
A rocket is not only a cylinder, but also a wing, rudders and air intakes.
Yeah figured thats what they were gonna answer :/
Sad i would love to see it pull such AOA, other wise there have to be something that allows it to do this
It’s still a cylindrical object. It might have parts sticking out and it also doesn’t seem to be evenly distributed in weight around it’s body… BUT
In general it still rotates around an axis where only very small areas will actually be resisting the roll. It’s only the air intakes in this case that will resist the roll, since the fins will pretty much induce the roll and have limited (although not completely negligible) resistance towards the roll axis.
And given the surface area of the air intakes I don’t think that rolling this missile will consume a crazy amount of energy. Some yes, it still abides the laws of physics but since it will still be powered even in the terminal phase, it will be able to regain that lost energy instead of simply losing momentum.
I could have a whole compilation of r73 shots, but not any for the Aim9m its just a garbage missile. And every other missile are getting buffed, while aim9m has accepted bug reports that has been abandoned. Need IRIS-T at this point, the russians already have it
Probably only at low air speeds. The ramjet will probably be inefficient but it’ll still provide thrust.
i think he is talking about the fact that it is harder to turn when you have high amounts of thrust
the same reason why the IRIS-T can modulate its thrust
The IRIS-T can’t “modulate” its thrust. It has a four stage solid fuel booster where every stage (with a different thrust profile) burns for a fixed duration → fixed schedule, no modulation.
The Meteor on the other hand can freely regulate its thrust (except for the first booster stage) as the ramjet can vary its fuel supply as the situation desires.
It regulates its thrust so that the missile can provide thrust continually and deplete all the propellant by the time it hits the target? (Meteor)
Or is it dependent on something else?
Mig29G when it came out I was hitting the most disgusting shots with the R73, absolutely insane missile
That’s fully up to the missile controls. For example: If the missile calculates that it won’t run out of fuel no matter the thrust, it will immediately go to full thrust to reach the target as fast as possible. Or, if the outer target is at the border of the engagement range, it will cruise at minimal thrust to enhance its range to the maximum. The moment it calculates that it has reserves (because the target approached the missile) it will accelerate again. So really, it is totally dependent on the situation how the missile will regulate its thrust. I would even guess, that it will reduce its thrust to make sharp turns.
Theoretically it could even go onto a ballistic path (like the AIM-120), shutdown its engine with a following glide phase and reignite it when the situation allows or calls for it. This is possible as its fuel (Borane) self-ignites the moment it gets into contact with oxygen.
I have more fun in the Mig-29G in air RB than the Eurofighter, because of the missile kit.
R73 is better than before too, since it has become less wobbly and has the fov reduction before launch
Yeah that’s cracked! if Russia want un flarable missiles its time to give Typhoon Spectral flares
