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towing weight


thunderturk
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Do not exceed tow bar limits.

The maximum gross weight at which the airplane can be towed is 175,000 pounds. However, at gross weights above 110,000 pounds, exercise extreme caution with respect to surface conditions and rate of acceleration while towing from the nose gear to avoid failing the tow bar shearing mechanism.

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Do not exceed tow bar limits.

The maximum gross weight at which the airplane can be towed is 175,000 pounds. However, at gross weights above 110,000 pounds, exercise extreme caution with respect to surface conditions and rate of acceleration while towing from the nose gear to avoid failing the tow bar shearing mechanism.

Exactly , thats another reason why you have a brake operator and the APU/GTC running for AC to run the AUX pump for brakes.:cool:

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Where are you getting these questions? Flying at low levels puts the most strain on an aircraft structure, unless your exceeding G levels or sink rates to landing. Max power runs with max fuel loads are not an issue. Prop over torque may create problems on wing truss mounts.

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We have some who swear that it will cause excessive structural wear and tear and generate fuel leaks.

Your are correct!

Accelerated Structural Wear is the primary reason that Engine Runup Checks were eliminated from the ops checklist, and removed the requirement for slicks to run up all four engines prior to take off.

That refers to the accelerated structural wear, about the fuel leak part I am not sure but its possible.

Dan

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Dan,

When did the USAF do away with the engine run-up as part of the before takeoff checks? Back when I was in stan/eval, I actively campaigned to get rid of it for a number of reasons. As a commercial FE, it was never a requirement. Of course, the company or the customer was paying for the gas then -- not the tax payer.

Don R.

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Way back when, the authorized C-130 tow tractor was rated at 100,000 lbs. This tractor was ok in A model units but with the arrival of the E it became way too lite. Everyone knew it was too light but it worked ok so the rating was ignored. About 73/74 we discovered WR-ALC, without telling anyone, intended to up rate the tractor without any data to support the up rate. The command protested demanding data be provided to support the change. An agreement was reached whereby the 316th flew the tractor to Loring AFB, in the winter, to test the tractor at max gross weight on worst condition tarmack. Not surprising the tractor failed. The end result is the tractor in use today.

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