← ALL HEAT SHIELDS
LOCKHEED MARTIN

AFRSI (Advanced Flexible Reusable Surface Insulation)

Flexible BlanketRETIRED (SHUTTLE)Reusable
816
°C
MAX TEMPERATURE
1,500°F
0.04
W/m·K
THERMAL CONDUCTIVITY
0.14
KG/M³
DENSITY
19-25 mm
THICKNESS
TYPICAL
2.2 kg/m²
KG/M²
MASS PER AREA
1
VEHICLES
PROTECTED
THERMAL RATING
816°C / 3,000°C

AFRSI (Advanced Flexible Reusable Surface Insulation) is a flexible blanket thermal protection system by Lockheed Martin. Rated to 816°C. Status: Retired (Shuttle).

AFRSI is a quilted flexible blanket that replaced many LRSI tiles on the Space Shuttle, reducing maintenance time and cost. Each blanket consisted of a high-temperature ceramic fabric outer layer, silica batting insulation, and an inner fabric layer. AFRSI blankets are sewn together and bonded to the vehicle surface.

🛡Material TypeFlexible Blanket
🌡Max Temperature816°C (1,500°F)
Thermal Conductivity0.04 W/m·K
🔥AblativeNo
ReusableYes
Density0.14 kg/m³
📏Thickness19-25 mm
Mass per Area2.2 kg/m² kg/m²

Nextel 440 outer fabric, Q-fiber felt batting, S-Glass inner fabric

Space Shuttle (upper surfaces, payload bay doors)
🚀First MissionSTS-6 (Challenger)
📅First FlightApril 4, 1983
🏭ManufacturerLockheed Martin
🟢StatusRetired (Shuttle)

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