49 CFR Part 238
§ 238.717 — Truck-to-carbody attachment
FRA Part 238 · Subpart H — Specific Requirements for Tier III Passenger Equipment. Full current text with cross-references on BuildSpec.
§ 238.717 Truck-to-carbody attachment. To demonstrate the integrity of truck-to-carbody attachments, each unit in a Tier III trainset shall: (a) Comply with the requirements in § 238.219; or (b) Have a truck-to-carbody attachment with strength sufficient to resist, without yielding, the following individually applied, quasi-static loads on the mass of the truck at its CG: (1) 3g vertically downward; (2) 1g laterally, along with the resulting vertical reaction to this load; and (3) Except as provided in paragraph (c) of this section, 5g longitudinally, along with the resulting vertical…
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