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JTECH

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Posts posted by JTECH

  1. hey Herc world, we have an issue with H model props with premature dome quad seals breaking down prematurely, after under 1000hr operation. Standby filters are filled with particles and when the domes are removed there is substantial pieces of oring material in the domes and even enough to plug ports in the PLR.

    anyone else experiencing this?

     

    dome seal.jpg

  2. I am looking for some help for an ongoing snag with a CC130H T56 , the snag only occurs during flight and during climbs. we get a 50-200 degree fluctuation in TIT with FF and TQ following.

    we have changed TD AMP, TD Valve, SS control, thermocouples and L/H and R/H harness, T-block harness and T-block, the snag is intermittent so hard to nail down.

    Anyone see this before I would appreciate any input.

    Thanks.

  3. Anyone have any info or experience repairing J Model troop seats, I am mainly interested in authorizations and/or pubs with direct on what is allowed and if any other countries are doing their own repairs.

  4. oh yes I have gagged a couple times climbing the ladder and sticking my head in an intake and catching a wiff of guts and 1/2 baked bird.

    I have seen camels in a herc and many many different bugs and even some snakes but never a rat....

  5. What he is saying is the propeller changes angle to create thrust for the airframe, but inside the power section there are no variable parts. the compressor blades are fixed and the turbine blades are fixed as well as all the stators, nothing is variable, however during initial start up there are bleed pucks that are open to take air and pressure out of the compressor and then they are closed with bleed air pressure increase as the engine comes up to speed.

    Engine power measured in torque is increased and decreased by fuel fed to the engine and burned in the combustion section.

  6. Thanks for the feedback, I am also an old E/H tech and never had the nesting issues I see now. I am thinking of recommending the implementation of the screen mod for the J's we fly. I would hate to see a mission abort for a fire or worse.

  7. I am looking for any feed back from anyone about bird nests in engine nacelles, Specifically but not limited to J-Models. I know that the Canadian H-Models have screens installed on the upper aft nacelle and very rarely do they have nesting issues. We have had many instances of nests being built in lower trays, beside the oil tank and even once found robin eggs in the established nest.

    Any and all feedback is great.

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