C-130 Technical
1,312 topics in this forum
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- 14 replies
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WC-130h PRT AF Hi everyone pls help As to start calibrating the torque indicator it indicates aprox. -800lbs. After reseting to the 29850lbs with cal A with -4000lbs and cal B with 25850lbs still with neg torque all checks done and recheck wiring , gapping and so on. To put positive torque cal A must have -2340lbs and cal B 27200, by the way it torquemeter has 27540lbs from back shop. Are these values normal for service?
Last reply by oziejo, -
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Engine flameout RPM drop to 94% reason could not find out Munir Abbasi
Last reply by Moeed hassan, -
T-56 props
by WxFE- 14 replies
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Does anyone know if the P-3's use the exact same props as the Herc? Basically, are they the same diameter? They look a little smaller. Thanks.
Last reply by Robert Cantwell, -
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On approach for landing, a C130 E Model aircraft lowers landing gears only. Flaps are already down. While Lowering the landing gears, utility pressure drops to 1375 PSI and low pressure EDP light of both Engines and low pressure light of Utility Suction Boost Pump illuminated. As soon as the Landing Gears were extended completely, system pressure came back to Normal with all conditions within limit. To what component can this occurrence be attributed? Can it be the failure of Utility System Accumulator, Suction Boost Pump or EDP? And if we were to attribute this to Accumulator, is it possible for an Accumulator to suck hydraulic pressure from pressure line to fulfill its …
Last reply by munirabbasi, -
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Gentlemen, According to the Flight Manual, Flight Idle RPM is 92.5-100.5 %. If RPM in flight idle were to decrease as low as 92.5% what would prevent the acceleration bleed valves from opening below 94%. Do they actually open during Flight Idle operations in this case? Thanks all.
Last reply by Lkuest, -
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Hallo, i am a new member here in this forum.i live in the area of Ramstein AB. My question is : A lot of herkys there have grey noses an some black noses.And others receive black noses(former grey).Why have these Herkys different Colors (Noses). Hope someone can give me answers. Sorry for my not so good english. Phantom4
Last reply by Richard Beesmer, -
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Can anyone out there tell me exactly where the pyrotechnics are located at on a HC-130P(King)? The reason that I am asking is because I have been tasked with doing an operational check on the pyro system and the only thing that I can come up with is the flare launch tubes. If I am wrong on this please let me know. Thanks for everyones help on this.
Last reply by hydroguy1, -
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If an engine, in Low Speed Ground Idle, has the fire burning in the turbine area, how does that happen? It will start with low start TIT (750) and run in LSGI, but there is a fire in the turbine and the blades glow. The fuel nozzles were flow checked and they were good. If the engine is sped up to NGI, the fire goes out and when shifted down again, the fire stays out. I have never seen that before, and I don\'t really have an answer as to how it is happening. The only theory I can come up with is that, for some reason, the fire is not starting in one or more burner cans, so the fuel from that nozzle is making it back to the inlet guide vanes where it is igniting.…
Last reply by Steve1300, -
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I have an aircraft that starts to pull to the left as it goes past 60 knots. When airborne the problem gets worse. First thoughts are Rudder. The technicians claim that the entire assembly has been re-rigged but it seems as if the problem has gotten worse. The props have been checked closely, the synchrophaser and autopilot LRU\'s were completely removed/depowered, the nose gear has been checked. I am still convinced the Rudder system is defective..thoughts?
Last reply by pjvr99, -
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obviously the tach generator is self powered, but does it generate an AC current to power the dial or does it possibly use DC. My pubs don't really address it. The brush plate interaction on the pickup is normally a DC characteristic, but i can't help but say it's AC. thanks for any help.
Last reply by ArcticFox, -
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Got a call from a fellow maintainer in Iraq asking for help with a pressurization problem. The 130 pressurizes fine in auto and manual until underfloor heat is turned on. When it is turned on, the guage climbs 1000 feet, which is normal. However, it fluctuates 700-1000 feet the whole flight. This problem has came down over 4 times and almost the whole system has been swapped out. Any suggestions on where they should start?
Last reply by Dan Wilson, -
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I am currently building a 1/72 scale plastic model of a C-130 Blue Angels Fat Albert. How do the rear troop doors open? Do they slide up or do they pivot to the side like an airliner door? I am not talking about the rear cargo door but the 2 right and left troop doors. I have seen some pictures of the interior and it looks like they come in and pivot to the right. However, I though i saw some photos that look like the doors slide up. Can anyone help me?
Last reply by Wil Sanchez, -
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A FALSE low propeller oil warning light has caused many shutdowns in air. the culprit was oil level float indicator...Hydraulic used is 5606..and oil level float indicator part no is 519661... do u guys get the same problem with the floats or there is another oil level float being used..please tell any other reliable float(s) that don't make a false warning.
Last reply by RRR, -
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I read through the P-model -1 last night (slow night) and there was a note about the NESA windows that they are stronger with NESA turned on during flight. I never heard of this and hoped someone knew why this would be. I'm stumped on it.
Last reply by P3_Super_Bee, -
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Why for low speed ground idle speed limit is 30 knots and shutdown engine 20 knots on ground:cool:?
Last reply by BDizzle, -
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running the Aux Pump with ground test valve tied we get a presure of 2600-2800 psi. The second we take the elevator off the stops it jumps up to 3100 psi. We have already changed the Aux pump. Were could our problem be located at
Last reply by Ben Legere, -
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Hey all, been awhile since I've posted, but I got something for you all. A few of us Engineer types were sitting around shooting the "sheet" and we got on the topic about the IRON LUNG system. Now someone brought up and wandered what the actual power source for that system is? Do any of you out there in HERKY land know the answer to this and could point me in the direction of reading material? Much appreciated! Dave
Last reply by AMPTestFE, -
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Hi Folks, could anyone please provide informations about the Mode Select Panel and the Annunciator Panel - see attached pic. I could not find out from the available pictures the function of the two annunciators? in the mode select panel and i couldn't find informations about the annuciator panel - what kind of information is displayed? I want to build the panels, so I would need specific informations about the displays Regards Thomas actual state of the simulator: http://www.thomas-heinke.de
Last reply by SEFEGeorge, -
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guys, this question isn't that technical but for the last few years I have been wondering what the plates on the floorboards right against the FS 245 are for. They are the funny looking ones like halve moons etc there are 4 in total and they are different shapes. they are thin stainless and nothing structural in my eyes. who can shine a light on this? thanks Bonzo
Last reply by gizzard, -
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Hi, lately I have been working in an C-130E because we have a fuel leak around number 3 tank but I can´t find anything, we already retorque the booster pump panel acces, I checked the dry bay number three and center and behind flap wheel, but everything is dry there is any fuel. It starts to leak when we are between 15000 througt 18000 ft high and is visible near to the morring point in rh. I would like to get some information to get the leak fixed up. :confused:
Last reply by larry myers, -
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I´m working in a c130 H, s/n 5115, equipped with digital fuel indication. During normal flight, the pilots loose all fuel indication minus in the EXT LH and #3, whem they set the aircraft to a high velocity. In the begening they said that it was with a certain atitude. But after a new flight test, they saw that in all atitudes that they give to the aircraft the problem is the velocity. The indication goes off, like losing power, and goes on with a smaller velocity. Can someone help? Thank You
Last reply by steve haigler, -
- 13 replies
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hi to all can any body know breifly about that why herk engine s are started in low speed ground idle is there any technical reason .because before starting check list in -1 sec 2 says to put the button low. i never heard or read that we can start engine in normal. if it cannot be then why ? Feed back will be really appreciated thanks:)
Last reply by NATOPS1, -
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C-130 world, we are experiencing a lot of problems with the Turbine rear bearing support casing cracks. on several occasions (6) the casing is cracked near the mount clamp of the tail pipe, at the had band or between the had band and mount clamp Does any of you guy's experiencing the same issue. Does anyone have any suggestions why? AD info: turbine boroscope done no cracks on 1st stator prop is dynamically balanced no discrepancies of pilots/FE concerning special issues on the defective engine any help is welcome, meanwhile we will look into the this problem aswel. best regards Herky400M
Last reply by munirabbasi, -
- 13 replies
- 7k views
Tail pipe vibration during high power run.i change eng rear mount,check upper mount & lower mount torque.also change tail pipe & torque check.blade angle ok.others parameter ok. please anyone can help
Last reply by pmostafiz, -
- 13 replies
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does anybody experience that: In flight we experience very big vibration( the left wingtip move at least 1 meter up and down), just after the number 1 engine flame out, we shut it down by moving the condition lever in feather then pulling the T handle. The vibration stopped but we have the surprise to see that only 3 blades came in feather position the fourth one stay in position. Sorry if my english isn't as good as i would like.
Last reply by superbigbig,
