Recent content by jackwhirl
-
Would You Ever Buy a Computer That Ships by Mail (Fear of Damage)?
I don't have a problem with ordering things online. Just use a credit card, not a debit card. (If at all possible.) It's nice to have the big CC company on your side if anything goes wrong.- jackwhirl
- Post #17
- Forum: Computing and Technology
-
Space Stuff and Launch Info
Looks like the checkup results came back good.- jackwhirl
- Post #876
- Forum: Aerospace Engineering
-
SciFi Idea: What do you think about very long lifespans?
Hence, space habitats around Saturn. 👍- jackwhirl
- Post #31
- Forum: Science Fiction and Fantasy Media
-
SciFi Idea: What do you think about very long lifespans?
You can take the man out of the cave, but you can't take the cave out of the man?- jackwhirl
- Post #30
- Forum: Science Fiction and Fantasy Media
-
Space Stuff and Launch Info
NASA Picks SpaceX to Land Next Americans on Moon- jackwhirl
- Post #757
- Forum: Aerospace Engineering
-
Advice about Dremel cutting wheels
Do you know anyone with a laser cutter? You could do all the rings from a sheet of brass in a few minutes.- jackwhirl
- Post #28
- Forum: Mechanical Engineering
-
Advice about Dremel cutting wheels
I presume you're trying to save time by cutting all the layers together, but I'm not sure it's worthwhile... Superglue? Or just solder/braze them together.- jackwhirl
- Post #27
- Forum: Mechanical Engineering
-
Happy Birthday Greg B. & @Greg Bernhardt
Oh, hey. I didn't miss it this year. Happy birthday.- jackwhirl
- Post #15
- Forum: General Discussion
-
Advice about Dremel cutting wheels
Maybe I'm missing some subtle issue, but with the right mandrels, which everyone else is mentioning anyway, wouldn't you be able to use a standard tube cutter? Just slide a scrap piece down the mandrel to rest against the piece you want to cut, and it will be supported on both sides. You would...- jackwhirl
- Post #22
- Forum: Mechanical Engineering
-
If the lightest metal around were iron, would aerospace even be possible?
Or the Sea Dragon. It's one of my favorite rocket concepts. It was designed to use 8mm steel sheeting, which would give it a really high dry mass, but the 23m diameter and the square-cube law come into save the day. It's got ridiculous lifting capacity (550Mg) and was totally feasible with...- jackwhirl
- Post #16
- Forum: Aerospace Engineering
-
SpaceX Starship tests: SN15 flight early May
Are those flaps are still being constructed off-site and shipped in?- jackwhirl
- Post #60
- Forum: Aerospace Engineering
-
SpaceX Starship tests: SN15 flight early May
One of the arguments for stainless steel was ease of in situ repair, right? This is a good opportunity to test that.- jackwhirl
- Post #56
- Forum: Aerospace Engineering
-
SpaceX Starship tests: SN15 flight early May
SN9 didn't take the news well. That'll buff out, right?- jackwhirl
- Post #54
- Forum: Aerospace Engineering
-
SpaceX Starship tests: SN15 flight early May
They sure aren't wasting any time. This means they've probably got a good idea what went wrong with the tank pressure and that they can fix it with minor adjustments on the pad. Perhaps even in software. Or they need more room to stack new rockets. Maybe both...- jackwhirl
- Post #53
- Forum: Aerospace Engineering
-
SpaceX Starship tests: SN15 flight early May
Do we know if the header tanks were pressurized autogenously for this test, or is that something they are still looking to add in the future?- jackwhirl
- Post #50
- Forum: Aerospace Engineering