Stowing equipment on the Apollo spacecraft grew more complicated with the lunar exploration missions. The SIM bay and the rover have been described. The modularized equipment storage assembly occupied another quadrant of the descent stage. These cargo pallets provided room for tools, the lunar communications relay unit, various cameras including the color television equipment, and other items to be mounted aboard the rover. Inside the command and lunar modules the astronauts required more of nearly all supplies: food, clothing, film, and life support items. During the latter missions the Manned Spacecraft Center placed a number of experiments aboard the command module, e.g., Apollo 16 carried 60 million microbial passengers in a small rectangular container, a light flash detector, a biostack,* and a Skylab food package.26
A1
70 mm camera adapter
H2 gas separator in bag
5 tissue dispensers
2 penlights in bag
tool set
pressure garment O2 interconnect, 3 in bag
snag line in bag
2 probe stowage straps
3 temporary stowage bags
A3
4 CO2 absorbers
fire extinguisher
acoustic tone booster in bag
remote control cable
A5
2-speed interval timer
5 sleep restraint ropes
16mm camera sextant adapter
3 headrest pads
A6
TV monitor, monitor cable, and mounting bracket
2 CO2 absorbers
A8
3 pilot preference kits
inflight exerciser
2 tissue dispensers
3 constant wear garments
extravehicular mobility unit maintenance kits
3 light-weight headsets
relief receptacle assembly and strap
16mm camera with magazine, powerpack, and 2 film magazines in bag
10mm lens
decontamination bags
O2 umbilical interconnect
contingency lunar sample return container
R3
data card kit
eyepatch
2 meter covers
floodlight glare shield
fuse (16mm camera)
6 flight data file clips
flight data file books
lunar module transfer data card kit and flight data file books
R4
2 rucksack survival kits
R10
2 sanitation stowage boxes
30 fecal collection assemblies
water panel coupling assembly
waste management system water panel, quick disconnect, power cable, and quick disconnect pressure cap
R11
3 urine transfer systems
spare urine receiver assembly
roll-on cuff (red, white, blue)
U4
4 cassettes, 4 batteries for tape recorders
10 x 40 monocular
intervalometer (Hasselblad)
250mm lens
The launch team stowed the spacecraft cabins on three separate occasions during the Apollo 16 operations: first, in the chambers prior to the astronauts' altitude runs, a second time for the crew compartment fit and function test; and finally the day before launch. KSC had dropped the practice of stowing the cabin for the countdown demonstration test; instead technicians placed empty lockers inside the command module to give the astronauts the appearance of a flight-ready cabin. A team of nine normally stowed the command module. Inside the cabin two technicians secured each item in its proper place. A KSC quality control representative observed their work. Outside, two technicians unpacked the flight articles. A North American quality representative and engineers from Houston, KSC, and North American completed the team. While the six "outside members" of the team found the white room of the mobile service structure confining, they preferred it to the occasional use of the ninth swing arm from the umbilical tower, which had to be used in changing flight articles when Swigert replaced Mattingly on Apollo 13. Carrying equipment across a catwalk a hundred meters above the ground unnerved some members of the group. During the countdown, stowage of the command module began about 24 hours before launch and ran for seven hours. If no problems arose, the team could finish with several hours to spare.
The stowage exercise culminated two weeks of intensive preparations for KSC's Anne Montgomery. Her group checked many of the flight articles such as cameras, communications equipment, and the lithium hydroxide canisters. The items were tested individually and then in conjunction with other flight articles and command module systems. Some items required special packaging; all were weighed and recorded by serial number. Every flight article received a detailed quality inspection and each mission disclosed a number of discrepancies.
James McKnight directed a similar activity for the lunar module, the final stowage of which began just before the start of the formal countdown. At T-55 hours Grumman technicians placed most of the articles aboard and checked out the lunar equipment conveyor. The astronauts relied on this moving clothesline to carry heavy items such as rocks inside the lunar module. The group completed stowage at T-30 hours. After placing a portable life support system on the cabin wall and another on the floor, the technicians took pictures of their work and then sealed the hatch.
Houston prepared the stowage plans for each mission; these took into consideration when and where the astronauts would use a particular flight article. Emergency items received first consideration. The Manned Spacecraft Center was also responsible for the contents of the crew preference kits, the bags in which astronauts carried their personal mementos. Following the incident with unauthorized postal covers on Apollo 15, NASA tightened its restrictions on what the astronauts could take to the moon.27
After a successful flight readiness test on 1 March, officials met for the launch readiness review. The session covered all major aspects of Apollo 16 operations - range safety, operations safety, base support, Eastern Test Range support, Goddard's communications network support, the central instrumentation facility, technical support, and the status of the space vehicle. Despite the problem with the reaction control system fuel talk, Apollo 16 had been KSC's smoothest Apollo operation yet.28
One month before the scheduled liftoff, John Young, Apollo 16 commander, and Charles M. Duke, lunar module pilot, briefed KSC employees on the upcoming mission. Although 1,500 attended the meeting, the crowd appeared insignificant inside the assembly building. Young and Duke discussed the problems they anticipated on landing in the high, rugged Descartes region. They outlined the goals of their extravehicular activities and explained the flight plan. After answering questions from the audience, Command Module Pilot Thomas K. Mattingly and Young circulated through the crowd, shaking hands and signing autographs. The briefing was one of the astronauts' last public appearances before the launch, as they began their three-week preflight quarantine on 26 March. This crew had special reason to appreciate the restriction; Mattingly's potential measles on Apollo 13 had prompted the quarantine and in January 1972 Duke had spent a week at the Patrick Air Force Base hospital with bacterial pneumonia.29
The last month of operations saw few hardware changes. The actual countdown went without a hitch. Liftoff came on a hot Sunday afternoon, 16 April, at 12:54.30
