Space Shuttle Ultra

[SiameseCat]

I haven't tried it myself, but the AutoFCS reentry guidance will probably work. The deorbit burn and RCS attitude control will have to be done manually.

As a worst case scenario, I think you could turn off the AFCS autopilot and fly the shuttle manually, using the HUD flight director drawn by AutoFCS.

 

[DaveS]

I haven't tried it myself, but the AutoFCS reentry guidance will probably work. The deorbit burn and RCS attitude control will have to be done manually.

As a worst case scenario, I think you could turn off the AFCS autopilot and fly the shuttle manually, using the HUD flight director drawn by AutoFCS.

The problem is that it is impossible to maintain the 40° AOA throughout the entry manually without the DAP while also maintaining the proper bank angle. Which leads you off-course and if we simulated destruction of the vehicle, that as well due to the incorrect AOA.

 

[AtlantisOnline]

So what DaveS is saying is that there is no reentry guidence in the ssu but it is imposible to to it by hand... so how to I reenter. Thanks

 

[DaveS]

So what DaveS is saying is that there is no reentry guidence in the ssu but it is imposible to to it by hand... so how to I reenter. Thanks

Realistically? You can't. Please accept the fact that SSU is far from complete. You can launch and orbit, but that's about it. Alot of systems needed and required are simply not implemented at this time.

I feel that the David413's Shuttle Fleet would be better suited for mission simulations right now than SSU.

 

[AtlantisOnline]

Ok Thank you AtlantisOnline

 

[SiameseCat]

I did some testing yesterday, and it turns out you can deorbit and reenter using AFCS, at least down to about Mach 3 (AFCS didn't recognize any runways, but it should be able to land SSU).

If you try to fly the entry manually, maintaining the correct AOA is impossible; even with full trim and elevon, the maximum AOA is about 36. I'm not sure how AFCS works, but it doesn't seem to use thrusters or aerosurfaces, so it isn't affected by this.

NOTE: This was with the latest revision of the SSU code; I'm not sure how V1.25 performs.

 

[Donamy]

Will we have a release soon for SSU to work with 2010 ?

 

[SiameseCat]

I think a release soon is a good idea.

 

[BenSisko]

I did some testing yesterday, and it turns out you can deorbit and reenter using AFCS, at least down to about Mach 3 (AFCS didn't recognize any runways, but it should be able to land SSU).

If you try to fly the entry manually, maintaining the correct AOA is impossible; even with full trim and elevon, the maximum AOA is about 36. I'm not sure how AFCS works, but it doesn't seem to use thrusters or aerosurfaces, so it isn't affected by this.

NOTE: This was with the latest revision of the SSU code; I'm not sure how V1.25 performs.

I've been able to use AFCS (v2P1 I believe) with SSU v1.25. in Orbiter 2006. It is accurate, reads the runways and lands on the centerline. I put this installation together a while ago. I think I had to edit the configuration settings in the Plugin folder. Here's the information:

29                            ; Nbr of trajectory lines
122   7620   8064       ; Alt (km), A/S (m/s), dist (km)
87     7656   5942
75     7315   4752
72     7010   3921
70     6706   3287
68     6401   2791
66     6096   2398
64     5791   2069
62     5486   1806
60     5182   1596
58     4877   1417
56     4572   1265
55     4267   1139
54     3962   1013
52     3658     896
50     3353     783
49     3048     687
48     2743     598
45     2438     504
42     2134     417
39     1829     337
35     1524     263
30     1219     194
28      914     137
26      762     113
24      700       91
21      550       67
18      400       54
11.6   238         0

Ben