zolotiyeruki

Members
  • Content Count

    556
  • Joined

  • Last visited

Community Reputation

354 Excellent

About zolotiyeruki

  • Rank
    Rocketry Enthusiast

Recent Profile Visitors

The recent visitors block is disabled and is not being shown to other users.

  1. That's not quite right--you can't count the cost of both boosters. If they succeed, their cost to get from one launch to the next is (ASDS recovery + cost of refurbishment) If the booster misses, it's (ASDS recovery + cost of a new booster)
  2. I dunno, I imagine that first stage is gonna be pretty spectacular as well.
  3. The most recent launch was the fourth for that particular booster, if memory serves.
  4. Is anyone else having trouble parsing this tweet? Should that be "SpaceX’s Dragon capsule will carry new cutting-edge research to the ISS in an upcoming launch."?
  5. You know, I heard yesterday about the Iranian government shutting down basically all internet communications in the wake of recent demonstrations, and I couldn't help but think "gee, Starlink might be a big help in such a situation"
  6. I uploaded the new zip file to the repo, but forgot to update the release too. That's now fixed, and thanks for your patience. Is there a way to verify that I did it right?
  7. Thanks for the help. I've merged the change and re-uploaded the zip file.
  8. If you're looking to simply blow up a target, then boots on the ground are not what you want. As for detectability, that would be a problem in a contested area with substantial radar/AA systems, but when I think about high-value targets of the type the military pursues in the middle east, I don't see that being an issue. I just checked the first Falcon Heavy launch, and the side boosters went transonic about 30-45 seconds before touchdown, with the landing burn starting about 20 seconds prior to touchdown. That's not a lot of warning from either the sonic boom or the landing burn. Also, generally on these missions, rapid exfiltration isn't a need--they usually take a few hours to secure the site, gather any sources of intel, etc before bogeying out. If a Starship were stationed closer, say at a military base in the region, it wouldn't need nearly as much fuel, would it? If you're looking at only hopping a few hundred miles each way, would there be enough fuel to make both hops?
  9. This has probably been asked and answered before, but... I'm sure a lot of us have launched a craft with a combination of LV-N's and some sort of LF/Ox motors (usually RAPIERs for me). I often end up with excess Oxidizer that I won't need for the rest of the mission, but which I cannot vent/jettison (without a mod). That leaves me with a conundrum: Option 1: Use the RAPIERs until all the Oxidizer is gone, taking a dV hit early, but then benefit from the lower dry mass when the LV-Ns run Option 2: Leave the oxidizer in the tanks, and only burn the LV-N's, due to their higher Isp So I put together a spreadsheet, outlining the dV from each scenario. The results are interesting, although not surprising. The short version: if the mass of oxidizer is more than about 24% of your vessel's total mass, use the RAPIERs until they're out of fuel. If you have less oxidizer than that, stick to the LV-N. As a rule of thumb, though, you might as well just stick with using the RAPIERs until they're dry. In the least-efficient scenario (about 15% craft mass LOX), you'll give up about 75m/s total, and your TWR will be a bit higher for the rest of your mission.
  10. Good catch. Can you tell I'm new to this? I've updated the .version file and re-uploaded the zip file. Is there a way to kick off a new build attempt?
  11. Alright, I've uploaded a zip file and created a release. You can see it here. Is there anything else you need me to do for CKAN? https://github.com/zolotiyeruki/Pilot-Assistant/releases/tag/v1.13.4
  12. What should the root directory for the zip file be? Should the zip file contain the GameData directory, or the PilotAssistant directory that goes in the GameData directory?
  13. Given technological advancements over the last half century, I imagine the equipment in Crew Dragon takes up a lot less space than Apollo's did
  14. A 10% reduction in pressurized volume represents a much larger reduction in *crew* space, though, since a bunch of the pressurized volume is occupied by equipment.