Lunar Module Descent Stage Quad III

G and H-Series
Apollo 11, 12, 13, 14

Apollo 11 LM “Eagle” at Tranquility Base,  with Quad III “bulge”	Diagram of  Quad III,  showing  supercritical  helium (SHe) tank	Pre-delivery photo  of Quad III on  LM 8, “Antares”,  taken at Grumman  plant in  Bethpage, NY

Left photo courtesy Kipp Teague’s Project Apollo Archive
Right photo courtesy Mr. Paul Fjeld

J-Series
Apollo 15, 16, 17

Apollo 16 LM  “Orion”, Quad III  before deployment	One bay open  on “Orion’s” Quad III	Apollo 17 LM  “Challenger” with  Quad III external  thermal blankets  opened

In order to maximize the amount of payload carried to the lunar surface, the J-Series LMs of Apollo’s 15, 16, & 17 packed all of the LM descent stage quads with equipment.  Quad III contained an LRV pallet, and a “payload pallet” which was different on each mission.

J-Series Payload Pallets

Apollo 17 payload pallet, with LSP explosives	Apollo 17  payload pallet after equipment removal	Itemized list of LM descent  stage contents  for Apollo 16	Great diagram  of Apollo 15  Quad III pallets Compare to diagram at right Diagram courtesy Mr. Glenn Johnson	LRV Aft chassis pallet and lunar  hand tool carrier – these comprised  the Quad III LRV pallet

Above: LRV 1 photo clearly shows how LRV pallet was mounted to rear of
the vehicle before the carrying handles were removed.  Right photo is
close-up.  Compare to photo at left below – top of pallet as seen in the
bay is to the left in photo above, as pallet was mounted vertically in the
LM and horizontally on the LRV

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LM 10, Apollo 15 “Falcon” Quad III photos
Note the SHe and Ambient Helium Tanks behind the LRV pallet
This was before installation of the LR3

Opening internal  thermal blankets  using lanyards.  Note velcro  strapping.	Left bay open.  This contained  the rover pallet,  shown simulated  here	Left and right  bay open.	Removing left  pallet.  Note pins  on pallet lower  corner, used to  hold it in place  in the bay

Deployment test photos for Quad III