Trailer engineers attending the seated left to right Rod Ehrlich Wabash National Corporation Andy Tanner Talbert Manufacturing Jeff Thompson Timpte Inc George Gauntt Kentucky Trailer Dan Giles Fontaine Trailer Company Jeff Bennett Utility Trailer Manufacturing Jeff Sims TTMA and Randy Williams Stephens Pneumatics Standing left to right Christian Lee Hyundai Translead Rick Mullininx Great Dane Trailers John Rust Trail King Industries Charlie Fetz Great Dane Trailers Paul Hronec Talbert Manufacturing John Fr

Trailer engineers attending the [seated] left to right: Rod Ehrlich, Wabash National Corporation; Andy Tanner, Talbert Manufacturing; Jeff Thompson, Timpte, Inc; George Gauntt, Kentucky Trailer; Dan Giles, Fontaine Trailer Company; Jeff Bennett, Utility Trailer Manufacturing; Jeff Sims, TTMA; and Randy Williams, Stephens Pneumatics. Standing, left to right: Christian Lee, Hyundai Translead; Rick Mullininx, Great Dane Trailers; John Rust, Trail King Industries; Charlie Fetz, Great Dane Trailers; Paul Hronec, Talbert Manufacturing; John Freiler, TTMA; Brett Manahl, Valew Quality Truck Bodies; Scott Hevelone, LBT; Gary Fenton, Stoughton Trailers; John Cannon, The Walker Group / Wabash National; Steve McBride, Wabash National Corporation; Jay Kulyk, Rogers Brothers Corporation; Peter Weis, Polar Tank Trailer, LLC; Jeff Ingels, XL Specialized Trailers; Allen Peacock, Fontaine Trailer Company; and Soon Dung Jung, Hyundai Translead.

TTMA Engineering Committee updates recommended practices

The TTMA Engineering Committee approved a series of updated recommended practices and technical bulletins during a meeting held April 25 in Point Clear, Alabama.

The recommended practices are intended to serve as a guide for trailer manufacturers. The primary audience for technical bulletins is those who own and/or operate trailers.

The recommended practices that have been updated include: RP No. 1 – Permissible Load Concentrations for Straight Floor Van Trailers; RP No. 4 – Truck Trailer Landing Gear; RP No. 6 – Trailer Hitches and Connections; RP No. 44 – Air Brake Application & Release Test; and RP No. 65 – Stretch Van Trailers.

Also RP No. 88 – Air Suspension Application Data; RP No. 90 – Side Turn Signal Lamps for Long Trailers; RP No. 100 – Determination of Trailer Length and Width; and RP No. 103 – Trailer Tracking Installation.

The committee also updated the following technical bulletins: TB No. 65 – Wiring Diagram for Truck Trailers; TB No. 77 – Cracked Beam on Platform Trailers; TB No. 87 – Loading Hanging Meat in Meat Rail Trailers; TB No. 95 – Trailer Specification; TB No. 97 – Urethane Foam Flammability and Safety Measures; and TB No. 112 – Exhausting Air from One Air Suspension of a Spread Axle Tandem.

Copies of the new publications are available from the TTMA office in Manassas, Virginia, or by calling (703) 549-3010.

The next meeting of the engineering committee will be July 24-25 in Alexandria, Virginia. It will be a joint meeting with federal officials to mutually discuss trailer-related issues.

Find the TTMA Report archive with articles from 2012 to present


Hide comments


  • Allowed HTML tags: <em> <strong> <blockquote> <br> <p>

Plain text

  • No HTML tags allowed.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Lines and paragraphs break automatically.