What does SPRA stand for?

Semi-Permanet Release Agent

Service de Protection Radiologique des Armees - Radiological Protection Service Of The Armies (ALPHA)

Space Probe RADAR Altimeter (KSC)

Space Probe Radar Torch (SAUS)

Special Purpose Reconnaissance Aircraft (SAUS)

Special-Purpose Reconnaissance Aircraft - Navy

Sponsor's Profit and Risk Allowance - Department of Housing and Urban Development (GFGA)

Spotted Rail - Common English name - American Ornithologists Union four-character bird identification - Scientific name: Pardirallus Maculatus (IBP)

Sprayline Two-Wheel Trailer - NCIC trailer make code