Update Solar modules ITS from ISS

[Urwumpe]

I guess we need a new shuttle model for Orbiter then.

Wasn't that the purpose of the re-scaling of the SSU meshes one year ago? I remember us loosing about 42 cm distance between old shuttle VC and current meshes.

 

[Donamy]

Evidently, we didn't get it quite right. Are we going to start from scratch again ?

 

[BrianJ]

Thanks for the info and links.

It's only a problem if we want to fix "it", and all the payloads that have been made for the shuttle bay, and I think Mustard's P3/P4 will still need scaling.

Yes it will. Just as easy to scale it up for 5m as 4.6m.

All the shuttle payload bays seem to be 5m wide, so I guess I'll go with the flow. I'll see what Mustard wants to do.

Note: A quick look at the Shuttle Payload Planner's guide says it's the payload envelope that is 4.6m wide, the trunion-pins stick out a little beyond that. If the trunion-pin sockets protrude into the payload bay even 15cm, maybe 5m total for the payload bay is pretty close. Dunno, I'm not a Shuttle buff).

Cheers,
Brian

 

[Urwumpe]

Evidently, we didn't get it quite right. Are we going to start from scratch again ?

Depends on what we did wrong, as far as I have read, we have a minor distortion in length, which we could tolerate, but a big error in width.

If we rescale the meshes again and fix the animations, we would get a serious show stopper.

Payload envelope is smaller than the real volume of the bay, as it contains about 5 cm on each side as dynamic volume (vibrations and sound!). Still I think it should be closer to 4.85 m, did somebody see scaled drawings of the pay?

 

[Donamy]

The whole model was scaled, not individual parts, so I guess there could be quite alot that isn't quite right. But I think it looks good.

 

[Orbinaut Pete]

Maybe this can be fixed by simply changing Mustard's mesh.


I think I see a problem.

Mustard: You say width of P3 is good, but I don't think width includes trunnion pins. I think the width should be like the picture below (look at difference in red box - trunnion pin sticks out over edge of P3, it is not included in width)

 

[BrianJ]

Mustard: thanks for the link to the ISS truss designs, I'll see if I can work to that.

Note: Looks like the drawings on Mustard's link show the P3 trunion-pins at 4.97m from tip to tip.

 

[Urwumpe]

The whole model was scaled, not individual parts, so I guess there could be quite alot that isn't quite right. But I think it looks good.

At least much better than the graphics of a 20 € shuttle simulation I lately saw in my computer store.

 

[Orbinaut Pete]

At least much better than the graphics of a 20 € shuttle simulation I lately saw in my computer store.

Would it happen to be this one?

It's an expansion for FSX.

If so, yes, the graphics are really pretty bad. Just look at the ODS:

I'm afraid to say I paid up and purchased this
My advice to anyone who may think this sim is better than Orbiter: It Isn't!
Sure, the FSX graphics engine may be better, but the shuttle itself is much worse

 

[Urwumpe]

Would it happen to be this one?

No, it is by a smaller German publisher AFAIR.

[ame="http://www.amazon.de/astragon-Software-GmbH-Shuttle-Simulator/dp/B001F2W078/ref=sr_1_1/279-6093685-2760129?ie=UTF8&s=videogames&qid=1234281553&sr=8-1"]Space Shuttle Simulator: PC: Amazon.de: Games[/ame]

It's an expansion for FSX.

The Captain Sim Shuttle was actually pretty well done, IMHO.

 

[DaveS]

Payload envelope is smaller than the real volume of the bay, as it contains about 5 cm on each side as dynamic volume (vibrations and sound!). Still I think it should be closer to 4.85 m, did somebody see scaled drawings of the pay?

How about this: http://www.unitedspacealliance.com/icd/p3p4/pld03A.pdf?

That's the physical interfaces section of the P3/P4 Interface Control Document(ICD). It clearly shows a 90"(2.25 m) radius thermal dynamic envelope from scuffplate to scuffplate. Same thing with depth.

The entire payload has to fit with in a circle that has a 180"(4.5 m) diameter.
Trunnion and keel pins are outside this 180" diameter circle. And according to the PDRS section of the SCOM, the trunnion pins are 3.24"(0.081 m) in diameter and are either 7"(0.175 m) or 8.75"(0.218 m) long depending on their positions in the payload bay.

Keel pins are 3"(0.075 m) in diameter and vary in length from 4"(0.1 m) to 11"(0.275 m) depending on keel pin position in the payload bay.

 

[Orbinaut Pete]

Here's a preliminary texture of the scuffplate for the trunnion pin. These are the ones as used on the actual arrays in real life. A better one will follow soon.

 

[Orbinaut Pete]

I noticed a few other things that could be improved for the next release:

1. Would it be possible to add the clear space at the start of the arrays as shown below. The current arrays don't have this.

2. For the P6 truss only, would it be possible to add an animation to deploy 3 radiators as shown in the pic below. Only 1 radiator is currently deployed, but all 3 were deployed when the P6 was attached to the Z1.

Below I have include some pictures of the P6 & the P3/P4 in the shuttle's payload bay so you can see the relative size of the trunnion pins.

I'm also working on a more accurate scuffplate texture.

-Pete

 

[Mustard]

Pete, we can't add the space between the arm and the first foil, because this requiere to retart all the work for animations. It's a too big work for a detail.

Good news, the works seem in good way, i expect a release of v1.1 the next week.
-Reentry effect during launch fixed
-Rescaling of P3, closed to the real dimensions
-Trunnion pins of P4 for shuttle bay enlarged

P5 and P6 are sames because theirs dimensions are closed of the real dimensions.
Now, no new meshes modifications because that requiere to restart all points of animation (With 320 foils in accordeon, it's very complex). This V1.1 will be the final meshes and textures.

 

[Orbinaut Pete]

OK, good that release will be soon.

As I said, my other ideas were only suggestions, if they will cause too much trouble then don't worry about not including them

The scuff plate texture below will be my final one - it is good enough. So feel free to use that. For a way to make arrays appear batter positioned in bay, you could simply make a dummy carrier. Perhaps Donamy would let you use his payload retention latches?


-Pete

 

[Mustard]

As I said, my other ideas were only suggestions, if they will cause too much trouble then don't worry about not including them

-Pete

Don't worry, all suggestions are good but it's too late now

 

[Donamy]

I'm not gonna sweat over retention latches. :lol:

 

[DoyleChris]

I have been trying to read up on the power system of the ISS and trying to work a a diagrham of the setup for 1 of the arrays but havening trouble trying to figure it out.

 

[Orbinaut Pete]

I have been trying to read up on the power system of the ISS and trying to work a a diagrham of the setup for 1 of the arrays but havening trouble trying to figure it out.

I have a book all about the ISS with a good diagram. I am working on some diagrams about various systems for the ISSU project.

 

[DoyleChris]

Would it be possible to scann a few for me of the power system.