The Orbital Mechanics Podcast

This week in SF history

-- October 18, 1963, first flight of a cat (gizmodo.com) (youtu.be)

-- Véronique AG1 is a V-2 derivative with detachable fins (wikipedia.org)

Spaceflight news

-- Soyuz MS-10 fails during second stage flight (nasaspaceflight.com)(youtube.com)

-- Primary cause: Soyuz-FG first stage separation failure (JPG: wikipedia.org) (spaceflightinsider.com)

-- “Lower part of first stage disintegrated” (http://tass.com/science/1025675)

-- D booster at fault (twitter.com/NASASpaceflight)

-- This is the second ever successful in-flight abort with crew. The previous was also a Soyuz (wikipedia.org)

-- ROSCOSMOS claims to have footage from a camera facing the boosters (twitter.com/NASASpaceflight)

-- Impact on other rockets

-- Arianespace considering impact on their Soyuz-STs (spacenews.com)

-- Commercial crew can’t be safely pushed faster (spacenews.com)

-- Hubble and Chandra are down!

-- Hubble (twitter.com/BadAstronomer) (nasa.gov)

-- Chandra (nasa.gov) (twitter.com/planet4589) (twitter.com/astrogrant)

Questions, comments, corrections

-- Arin Cross: Injector elements weren’t vibrating per se, it was the propellants inside

-- DR call for contributors

-- Email us at info@theorbitalmechanics.com and use the subject line “Data Relay Contributor”

Data Relay: Saturn V umbilicals

-- Thank you to Anderson da Nova for presenting this topic! (twitter.com/DaSupaNova)

-- Umbilicals are connected to the Launch Umbilical Tower (LUT) (JPG: wikipedia.org)

-- From bottom to top, the umbilicals are:

-- Aft Umbilical Carrier #1 - various pneumatic couplings, 8 electrical connectors and a 6" LOX connector

-- Aft Umbilical Carrier #2 - various pneumatic couplings, 8 electrical connectors and a 6" RP-1 connector

-- Aft Umbilical Carrier #3 - various pneumatic couplings, two 4" air conditioning couplings

-- S-IC Inter / "Aft" - LOX fill and drain, and GHe for POGO suppression

-- S-IC Fwd - GN2 air conditioning

-- S-II Aft - Human access

-- S-II Inter - LH2, LOX, vent line, pneumatic/electrical, air conditioning, and instrument cooling

-- S-II Fwd - GH2 vent, electrical/pneumatic interfaces

-- S-IV B Aft - LH2, LOX, electrical/pneumatic, and air conditioning

-- S-IV B Fwd - Split umbilical, serving S-IVB forward section (GH2, electrical and pneumatic) and IU section (air conditioning, GH2, electrical and pneumatic)

-- Service Module - Air Conditioning, vent line, coolant, and electrical/pneumatic interfaces

-- Command Module Access Arm - crew access

-- Bonus: a 360 degree, 25 ton crane (reddit.com/r/space)

-- Sliding Wire Escape System (youtube.com)

-- See also:

-- Apollo (SATURN V) launches in 60FPS HD w/ AUDIO (youtube.com)

-- Umbilical Arms for the Saturn V Vehicle (ieee.org)

-- Saturn V Flight Manual (PDF: nasa.gov)

-- Apollo/Saturn Mobile Launcher (savethelut.org)

-- Lots of diagrams in one place (apollosaturn.com)

-- LUT Engineering Camera Footage

-- Tail Service Mast (Umbilical Aft) (youtube.com)

-- Tail Service Mast (second angle) (youtube.com)

-- S-IC Aft (youtube.com)

-- S-II Inter (youtube.com)

-- S-II Inter (youtube.com)

-- S-II Fwd (youtube.com)

-- S-IVB Fwd (youtube.com)

-- S.M. (youtube.com)

-- S.M. and S-IVB Fwd (youtube.com)

-- Arms retracted during liftoff (JPG: wikipedia.org)

-- POGO oscillation (wikipedia.org)

-- Technical information summary (Leads to PDF: nasa.gov)

-- Saturn V Mechanical Ground Support Equipment (erau.edu)

-- Saturn V Launch Vehicle GSE Fact Booklet (PDF viewer: scribd.com)

-- Umbilical Systems: V-2 to Saturn V (PDF viewer: scribd.com)

-- NASA report: Response to ground wind excitation (PDF: nasa.gov)

-- Wind damper system (PDF: nasa.gov)