Thorsten
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From memory, the SPEC 50 doesn't show the graphics in OPS 1 and above 200Kft in OPS 3,
Thanks - if you find the reference, please let me know, I've been wondering about this a while ago.
TACAN, what is that?!
A thing you'll find completely useless if you have a GPS aboard...
Wow It's hard
I a managed with 3 engines, but need practice with two engines.
Yes - writing an AP capable of flying RTLS was the hardest challenge in automatic flight I've had to deal with so far.
RTLS is difficult in many ways:
- targeting of the MECO condition needs to be much more exact than for a TAL if you want to be able to land (or a contingency abort where you don't really target anyway)
- there's a huge dispersal of initial conditions ranging from lots of fuel, two good engines to less fuel, three good engines for a late abort, no payload to heavy payload,...
- there's the restriction from droop altitude and ET heating constraints
- in the late phase, the atmosphere actually already influences flight dynamics
- the target qbar at MECO is again a fairly narrow window
- the safe window during Nz holding is again pretty narrow, and you can easily get into an actuator jam condition (well, that's more of a manual restriction, for the AP it's quite doable - for a contingency entry you basically can't do it by hand any more)
- while the end-point of the Nz pullout is intuitively clear to a human pilot, formulating the set of conditions for the AP is also not so trivial
From personal experience, having the OPS 601 display helps a lot in staying in the safe corridor during powered RTLS, And GRTLS tends to be a rough affair with hard S-turns.
So if you made it without guidance display, that's quite an achievement. :thumbup: