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  • Users: chesmit
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  1. chesmit

    Rotorcraft Picketing / lashing equipment safety factor

    Dear Sir Helicopter tiedown in wind speeds of up to 80kts (on land only). Ref. Defstan 970 (part 308/309). Safety factors for attachment points and structure are 1.25 and 1.5 respectively. WHAT SAFETY FACTOR is required for the lashings / cable equipment? Can you ID a spec? Generally we use a...
  2. chesmit

    Fitting Factor - application

    If you have a torque tube (for example) that is attached to another fitting with 4 bolts. Do you have to apply a fitting factor, even if it's considered a multiple joint system. Shouldn't a FF only be applied to a single joint / bolt system. JAR does highlight that welded , continuous rivets...

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