Dr_Arrow

I just made a short video of Aerobrake landing of Mig-21BIS, even there you can see that I touch absolutely gently from a height of less than 1 meter I still have to work the elevator and counter the big pitch down moment and then immediately neutralize elevator not to fly away from the runway, it is really very difficult and requires a lot of practice. I think that the plane should be much more stable in pitch after such touchdown.

Although I feel that I am fairly proficient in correctly taking off with Mig-21BIS using procedures from the RL and game manual, I still get burst tyres from time to time, even though I have not violated any takeoff parameters. As you can see in the picture, an empty Mig-21BIS bursting tyres at 320 km/h with correct takeoff attitude (11 degrees of AoA according to UUA). In this case the front wheel was lifted at a around 295 km/h (little bit later than it should). However there is no reason for a tyre burst at 320 km/h with an empty plane. This is happening using the latest OB, no MODS. I just cannot figure when do the tyres burst to reliably avoid the condition. I think it might be some kind of suspension bug. Track attached. Another example, when the tyres burst at 302 km/h at correct takeoff attitude with attached track: Mig-21_tire_burst.trk Mig-21_tire_burst2.trk

I can aerobrake all aircraft in DCS world, but Mig-21BIS is the hardest. If you do not touch down absolutely gently and do not counter that pitch down moment when MLG touches/kisses the runway you will hit the runway with fron gear. The RL approach works, but you need to level out at less than 1 meter above the runway and be extremely smooth on touch down with power on (of course not lowering below SPS) and catch the moment of touch down at the same time smoothly decreasing power. A Frederf said, I also do not understand what creates that strong pitch down moment after the MLG touches the ground, I have not seen in it in any video. Mig-21BIS can definitely be landed on MLG and aerobraked, however I think it is way harder than in real life. I can do it maybe 7-8/10 times after hundreds of landings.

It tracks only vertically when in CC, however if you put it in GYRO it will follow radar locked target. Even in CC mode it tracks vertically but it is tracking the position of the target. I haven't read in any manual that it should do it. I can only confirm what Frederf said, vertical movement of the piper is only for automatic solution for firing at ground targets.

I am playing SP, I am sorry it is not tracking IR targets without radar lock, but it is tracking radar locked targets, which it probably also should not ? (I am not so sure about this, but in previous version of realistic ASP, the piper was not slaved to radar lock).

As of the latest beta, this is still not working and piper is following target irrespective of the menu setting :(

It is unfortunately not working again :( Every second patch is breaking PRMG/SAU command/auto modes :(

I think that the pitch down moment is simply too big and very hard to counter. The aircraft can be aero-braked quite well, but after landing on the MLG it just smaches the nose down even if you do it very very gently. I've watched many Mig-21 landing videos and talked to pilots, after gently touching on the main landing gear the aircraft should be quite stable in pitch and aerobraked easily. There was some tendency to lower the nose, but it was before touchdown, which needed to be compensated by aft stick and landing would be done with stick nearly fully back and this is not the case of our 21. I hope it gets improved in the future.

It is working in the latest OB, Auto/Gyro ASP and radar in beam works when shooting S-5 rockets (haven't tested S-24) providing impact point calculations.

Maximum landing weight. Landing Mig-21BIS with 2000 litres of fuel unless grave emergency (even than you would be ordered to eject) would earn you a flying desk career :) From manual: ------------------------------------------------- 9. Rated landing weight for using concrete, un-paved or snowcovered runway, 6800 kgf, BLC system being used by all means. This landing weight is obtained when the aircraft: (a) has no external loads, fuel remainder not exceeding 700 L; (b) carries two missiles, or two UB-16-57 pods, or two FAB100 bombs, or carries no combat stores but has empty drop tanks attached, fuel remainder being 500 L. This fuel remainder ensures performance of a tight-visual-circuit goaround maneuver and landing, the flight endurance totalling about 6 min. WARNINGS: 1. All other, heavier external loads shall be jettisoned before coming in to land. 2. The fuel remainder must be at least 600 L before an instrument approach to land under bad weather conditions, in order to ensure the ability to perform a two 180o turn or tight-circuit go-around maneuver. 3. The rated landing weight with the BLC system not in use is 6500 kgf. This weight is obtained when the aircraft carries no external loads and the fuel remainder is 400 L. ----------------------------------------------------------------------- Emergency: 10. Landing of an overloaded aircraft (whose weight, however, should not exceed 7300 kgf) is allowed in the following exceptional cases: (a) when carrying two guided missiles, or two loaded UB16-57 pods, or two FAB-100 bombs and empty drop tanks, fuel remainder not exceeding 800 L; (b) when carrying two empty UB-32 pods and two missiles or two FAB-100 bombs, or two loaded UB-16-57 pods; when carrying four guided missiles or four loaded UB-16-57 pods; or two missiles and two loaded UB-16-57 pods (twoFAB-100 bombs); or four FAB-100 bombs, or two S-24 Landings with weights in excess of 6800 kgf shall be made with employment of the BLC system and drag chute in all cases.

I would also say that this shimmering is normal as your viewpoint is slightly moving edges of objects will shimmer, the only solution as Lange_666 mentioned is to ramp up anti-aliasing. I also have slight object edges shimmering with TIR5 in all sims I fly.

good post, absolutely agree, +1. On top of this I would add that the current flight model is the best we've had for Mig-21BIS. And for Fri13> R-25 at military power produces around 4 tons of thrust, so it is usually less than 0.5 TWR at normal operating weights so you cannot really expect wonders when maneuvering without AB.

I am sorry, but this just a bunch of exaggerations based on your feelings, misperception or misunderstanding how aircraft work and fly. Statement like: "Anytime your speed is below 700 km/h it loses lift and stalls" brings nothing constructive towards FM and I would say it is insulting for devs and really anyone who has some clue about flight modeling, sorry.

Ah, OK, thanks - so it seems to be an issue across the whole game, I haven't looked in weapons section. It really seems they are not lasing.

Recently I have found out that AI wingmen are missing targets with GBU-12 bombs (haven't tested other LGBs) in A-10C. I am attaching a short track. AI acknowledges the target, runs in, releases the bomb but misses by several hundred meters. Two patches ago they worked fine against ground targets with LGBs. A-10C_GBU_miss.trk

Here are plenty of Mig-21 (Lancer and UM) landing rolls with aerobraking (starting around 19:00). IRL a good landing with Mig-21 is landing on main landing gear (MLG) and then aerobrake. Landing on all wheels was considered as a bad one (at least by pilots I've spoken to). Another examples of correct landings (MF versions):

Thanks M3 for the new flight model, for me it feels normal during landing, it is a bit easier to aerobrake than in the past (but it is still quite hard).

I have also experienced this problem recently. Autolase failed, even though I used it correctly, I've been using it for ages (laser on, correct codes, no mask, clean LOS, correct CCRP drop, 18k alt, 18 sec. autolase). And I also missed (maybe for the first time with GBU-12) because even though I pressed NWS the laser did not fire.

Yes, landing lights OFF, does not work anymore.

FM in the latest OB version is in my opinion the BEST we've had. Take-off and landing behaviour are much improved, now I can do it by the book and it feels also great in flight. Big thanks for me.

:thumbup::thumbup::thumbup:

I can't get over the fixed gear and cut wings, it looks bad, this is not Hind for me anymore :cry:

Yes, unfortunately it is still quite unstable on take-off laterally (left right rocking), longitudinal control is somewhat improved but it is still very difficult to keep the nose stable during take-off at some 10-12 degrees and lateral oscillations make it only worse. But otherwise the new FM is a very good step forward.

This is still present in the today's OB patch (DCS 2.5.6.49718 Open Beta)

I am completely with Harlikwin on this one. If F-15E was and still is operated in a way where the WSO does all the A/G stuff, target acquisition, lasing, weapon profiles, radar and CMS management; I definitely won't buy F-15E without AI WSO and just haul a dead WSO in the back doing all his stuff by myself. For me there is no point in having all the systems modeling and FM made to perfection, but operate the aircraft in a completely different way than it is operated/flown in the real world.