MODEL 71-29

Overview

The RADCO Model 71-29 is a high-performance internal sealing solution designed specifically for aviation tiedown sockets. By creating a barrier within the internal cavity, it ensures that critical aircraft securing hardware remains operational for both rotary and fixed-wing assets.

Operational Application

  • Launch & Recovery Readiness: Directly supports NAVAIR 00-80T-120 and 00-80T-122 safety protocols by preventing "Foul Deck" conditions during active flight operations.

  • Ice-Seizure Prevention: Maintains a dry internal environment to prevent the freeze-thaw cycles that seize tiedown crossbars, a critical requirement for Arctic and high-latitude missions.

  • Multi-Platform Protection: Engineered to keep socket cavities free of debris for the immediate securing of helicopters and jet aircraft alike.

  • Preservation Support: Blocks the ingress of saltwater spray, fuel (JP-5), and hydraulic fluids to reduce corrosion on internal crossbar welds.

Technical Specifications

  • Governing Drawing: Manufactured to the precise internal specifications of NAVSHIPS Drawing 803-1916300.

  • Fitting Compatibility: Specifically optimized for the internal $4.75"$ orifice of Type VIII (Dimpled) and Type IX (Non-Ballistic) fittings.

  • Material: Proprietary pressure-molded technical polymer; non-porous and designed to withstand the extreme heat of jet engine run-up zones.

  • Sealing Standard: Features an interference-fit design to ensure the plug remains seated during heavy-sea states or high-velocity deck winds.

Fleet Compatibility

This model is the primary internal seal for all USCG and Navy hulls requiring mission-ready aviation decks .

US Coast Guard Cutters

  • National Security Cutters (WMSL): Bertholf through Calhoun.

  • Medium Endurance Cutters (WMEC): 270' and 210' classes.

  • WAGB Class: Polar Icebreakers (USCGC Healy / Polar Star).

US Navy Surface Fleet

  • Aircraft Carriers (CVN): Critical for full-deck flight safety.

  • Amphibious Assault (LHA/LHD): Supporting multi-spot flight decks.

  • Destroyers & Cruisers (DDG/CG): Arleigh Burke and Ticonderoga classes.

Chief’s Note: Most tiedown failures start with ice or sandblasting grit seizing the 'guts' of the socket. The 71-29 seals that internal orifice tight. Stop using hammers and heat guns to unstick frozen crossbars—keep your deck ready for immediate launch.