Beta and Higher Patron Notice for 01/01/2021
Added 2021-01-02 00:58:46 +0000 UTCSPACE FIGHTERS
added a new section BOEING DS-1
http://www.projectrho.com/public_html/rocket/fighter.php#boeingds1
ORBITAL PLANETARY ATTACK
added new section MARTIN-MARIETTA ZENITH STAR
http://www.projectrho.com/public_html/rocket/planetaryattack.php#zenithstar
CREW
added to Crew Candidates a quote HOW A NUCLEAR SUBMARINE OFFICER LEARNED TO LIVE IN TIGHT QUARTERS
http://www.projectrho.com/public_html/rocket/crew.php#tightquarter
OTHER DECKS
added to Hangar Bay a quote from THE STAR DWELLERS
http://www.projectrho.com/public_html/rocket/otherdeck.php#pigeonhole1
MACROECONOMICS
added to Interstellar Economy a quote from ENOUGH ROPE
http://www.projectrho.com/public_html/rocket/macroecon.php#rope
ALIEN BODIES
added to Hive Entity quotes METHUSELAH'S CHILDREN and THE BORG
http://www.projectrho.com/public_html/rocket/alienbody.php#telepathmind
FUTURE MYTHOLOGY
added to Space Myths a quote about the PLEIADES
http://www.projectrho.com/public_html/rocket/mythology.php#sevensister
INTERSTELLAR EMPIRE
added new section GALACTIC EMPIRE GALLERY
http://www.projectrho.com/public_html/rocket/stellarempire.php#gallery
MAN AMPLIFIER
added to Robot Bodyguard comic strip about a DOOM MARBLE
http://www.projectrho.com/public_html/rocket/manamplifier.php#doommarble
RESPECTING SCIENCE
added to "It's Just A Theory" a quote A CULT OF IGNORANCE
http://www.projectrho.com/public_html/rocket/respectscience.php#igcult
Comments
Looks like I might have jumped the gun. I found a newer map by the same guy who said that 20% value was for an aerial colony (so of value to scifi writers) while 27 was for all the way from LVO to the ground. http://hopsblog-hop.blogspot.com/2013/04/cartoon-delta-v-map.html
SSailor67
2021-01-04 05:36:48 +0000 UTCBy Jove, I think he's got it! I'll take a closer look and try to fix everything. Thanks for spotting that!
Nyrath
2021-01-04 01:28:19 +0000 UTCAha, I think I found it. It's a human eyeball error. On this map the "12.7" looks a lot like "27" if you don't zoom in far enough. http://www.clowder.net/hop/railroad/deltaveemap.jpg 20% overhead seems much more reasonable.
SSailor67
2021-01-04 00:30:23 +0000 UTCI've found a possible error in the delta-V maps for Venus. The 27km/s value for LVO to landing value on all these delta-V maps comes from the Wikipedia delta-V budget page. That in turn is sourced from this page http://www.clowder.net/hop/railroad/deltaveemap.html which does not show its work. I can only assume this is trying to integrate atmospheric drag because the naive value for escape velocity is 10356 m/s. Here's my math. https://pastebin.com/YWKSWqM3
SSailor67
2021-01-03 22:14:41 +0000 UTC
