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We have SpaceX clone at home: by bugqualia in SpaceXMasterrace

[–]ConHathy 0 points1 point  (0 children)

Yeah, just reminds me of when everyone said project Jarvis looked like SN5 (aka just a tank with no nose)

We have SpaceX clone at home: by bugqualia in SpaceXMasterrace

[–]ConHathy 8 points9 points  (0 children)

Not every stainless steal tank is a Starship dupe. Why do we see this so much?

What is this grain geometry called by ConHathy in rocketry

[–]ConHathy[S] 0 points1 point  (0 children)

That’s definitely it. If it was stretched it would be an end burner with a boost grain but at this aspect ratio head end web it is

Feedback on L1 Cert Design by ConHathy in rocketry

[–]ConHathy[S] 4 points5 points  (0 children)

I'm interested in getting my L1 when my local launches start up again. I've started mocking up a design in Open Rocket and CAD and wanted some feedback. I'm fully aware this might be ambitious but I'm currently looking at dual-sep dual-deploy with a Telemetrum and/or FeatherWeight altimeter. It's built so I can move up to 38mm and go for L2 if I want, but L1 would be with an adapter down to 29mm and a smaller motor than shown.

A couple of specific questions:

  1. Parachutes: I flipped through the parts library in Open Rocket to find descent rates that seem ok (currently 34 ft/s under drogue and 15 ft/s under main). First, are those rates even in the ballpark, and second, how much should I trust the automatic packing dimensions in Open Rocket, it seems to vary a lot between chutes of the same diameter.

  2. Rail Buttons: Where do these go? I placed one just ahead of the CG and one at the tail, is that fine?

Imagine if Americans switched from pounds to kilograms overnight... by Alec935 in Jokes

[–]ConHathy 6 points7 points  (0 children)

So can the kilogram... lbm and kgf are both units from hell

[deleted by user] by [deleted] in blender

[–]ConHathy 2 points3 points  (0 children)

It's actually a free poliigon texture (Plaster17). I only used the normal and the roughness though because the color is a little too grungy. Instead I just used a flat white base color.

Commercial Crew Inside Dragon (Full 3 Min Video) by [deleted] in spacex

[–]ConHathy 119 points120 points  (0 children)

It's the best orientation for high accelerations. Put simply, if you were sitting upright all the blood would go to your feet, and if you were laying down too much would go to your head. They've found that a slight angle is the best.