RCS Plume Deflector

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Optical Sight (COAS)
Surface Sensing Probe
ECS Relay Box
LM Switches
LM Tracking Light
LM LiOH Canister
Water Pressure Reg
RCS Plume Deflector
Suit Connector
Signal Strength Meter
LM Hasselblad Pouch
LM Film Mag Pouch
LM RCS Heater
Waste Fluid Bag
Boicide Wipe
ASA Cold Plate
Landing Gear Spring
Armrest Damper
LM Articulated Bellows
Water Shutoff Valve
Explosive Valve
LM Propellant Port
Interstage Disconnect
Manifold Coupling
Water Couplings
  • Mounted on Lunar Module (LM) Descent Stage, below each group of Ascent Stage Reaction Control System (RCS) thrusters.
  • 4 total similar plume deflectors per LM.
  • Protected surface of LM from excess heat during extended thruster firings.
  • Made from layers of 0.00125” thick Inconel 600 foil, 0.0005” thick annealed bright rolled nickel foil, and Inconel knit wire.
  • Finished with black Pyromark paint on front, and aluminum pigmented Sicon on back.

4.9 lbs. (2.2 kg)

This type of plume deflector can be seen at the center of this NASA photo of the Apollo 11 Lunar Module, above astronaut Aldrin.
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