Help with "ILS" and getting a proper signal, including glide signal

[razza1974]

Hi All

Enjoying the mig 21, although many describe it as a simple fighter at the moment is complex enough for me! I hope the f14 will be "easier"...or should i adjust expectations? Carrier landings would be great, but sofar landing the mig 21 seems difficult enough already!

I think i now how to use the rsbn (or something like that :)) to find the landing site/airfield. I also know how to catch the right approach/radial for the runway heading. So most of the times i get to the airport, and I tried landing without ils but that led to several crashes.

So i would like to use the ILS system, but no matter what i try my ils never seems to work, i always get the signal that i am not correctly lined up (the 2 letters appearing in the display), even though i can see the runway and i am lined up ok. I sometimes get course signal but never glide signal,

What am i missing here?

Thanks

Razza

[xxJohnxx]

Hi,

 

Can you upload a track file of one of your attempts? It would be easier to see what you actually do wrong to help you out ;)

 

Maybe, in the meantime have a look at this video:

 

 

This should point you into the general direction how to set up the PRMG for guidance and also automatic approaches.

[razza1974]

Here is a track,

I managed to survive and end up in flames, still a softer landing is what i would like:lol:

Don't mind the desperate landing attempt

I am wondering what i can do to better line up so RPMG mode kicks in. Here i am again off, even though i had a lot of time to get the correct heading

Thanks

crash landing.trk

[razza1974]

Sorry, this is not the correct replay track, is wasnt saved

Ill retry this week and try to save the track

Razza

[atsmith6]

Hi razza1974

 

I've been pretty much doing this today so may be able to help.

 

I set up a near zero visibility mission (400 m vis thick fog). Here's the procedure that worked:

- In Nav mode fly the command steering to get on course while descending to 900m AGL

- Extend gear and flaps and trim by about 35km (gave myself room because I'm learning)

- While maintaining runway heading with Nav at 900m AGL 500km/h.

- Watch the DME readout

- At DME 23km switch to Landing mode.

 

Using this method I had the signal every time I switched to landing mode. At that point I'd engage either director mode or auto-landing mode. It's worth noting that I often had to press the director mode button three or four times before it stayed on.

 

What I was doing previously was to use cloud penetration and the NPP to get inbound, but my mission has winds so when I switched to landing mode I was too far to the left or right to catch the ILS beam so absolutely NO signal. The above procedure works, and is straight out of the manual.

 

Like I said, hope that's useful.

[razza1974]

thanks guys

I put the plane on the ground now, its most of the times in pieces but i dont explode anymore.

Gotta better my approaching speed tot 290

[ronht]

thanks guys

I put the plane on the ground now, its most of the times in pieces but i dont explode anymore.

Gotta better my approaching speed tot 290

 

Ah..... that's the problem. The final approach speed for the Mig21 is 340 full flaps and 87% power.

 

I'd recommend reading the Mig 21 manual located in the Doc folder of the Mig folder. Lots of good information there.

[Yurgon]

Maybe, in the meantime have a look at this video: [...]

 

Wow, that's very helpful, thanks! :thumbup:

[xxJohnxx]

Ah..... that's the problem. The final approach speed for the Mig21 is 340 full flaps and 87% power.

 

I'd recommend reading the Mig 21 manual located in the Doc folder of the Mig folder. Lots of good information there.

 

I have done much better at 320 km/h and touchdown at arround 290 km/h. Those are the speeds they used on the East German MiGs at least.

 

But there are two things you have to have in mind as well:

 

-Be at the correct weight. There are strict landing weight limits for a reason. Overweight landings just risk damaging the bird unecessarily.

This means it you have no weapons anymore, you should have less than 700L of fuel on landing.

If you have some weapons left, you should be at 500L or less.

 

-Don't reduce the throttle to idle until your wheels have touched down. This was something you couldn't even do in the real MiG. An interlocking mechanism preventet that you could pull the throttle to normal idle as long as the gear and the flaps were extendend whilst being airborne. This was to prevent that the BLS system wouldn't stop working, which would cause a drastic and dramtic loss of lift at low altitudes. The interlock is not in place within the MiG, so we have to keep the throttle up ourselfes.

I personally just pull the throttle back a tiny bit, to prevent exessive floating. However, you just can leave your throttle on the approach setting, which will just do fine.

[atsmith6]

-Don't reduce the throttle to idle until your wheels have touched down. This was something you couldn't even do in the real MiG. An interlocking mechanism preventet that you could pull the throttle to normal idle as long as the gear and the flaps were extendend whilst being airborne. This was to prevent that the BLS system wouldn't stop working, which would cause a drastic and dramtic loss of lift at low altitudes. The interlock is not in place within the MiG, so we have to keep the throttle up ourselfes.

I personally just pull the throttle back a tiny bit, to prevent exessive floating. However, you just can leave your throttle on the approach setting, which will just do fine.

 

I had no idea about this. Till now I've been reducing the throttle to idle just prior to touchdown. Will try to counter this habit in future Mig-21 landings.

 

Thanks for the detail