WxFE Posted December 4, 2009 Share Posted December 4, 2009 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. Quote Link to comment Share on other sites More sharing options...
herkman Posted December 4, 2009 Share Posted December 4, 2009 My understanding is that they are not the same. Regards Col Quote Link to comment Share on other sites More sharing options...
pjvr99 Posted December 4, 2009 Share Posted December 4, 2009 Similar - Hamilton Sundstrand 54H60-77 Quote Link to comment Share on other sites More sharing options...
WxFE Posted December 4, 2009 Author Share Posted December 4, 2009 But are they the same diameter as the Herc's? I've got the old plastic model of the T-56 that is "upside down" from how we're used to it. I was going to try ro build it and mount it "right side up" as we see it, but the prop blades look a little too short. Quote Link to comment Share on other sites More sharing options...
Dan Wilson Posted December 4, 2009 Share Posted December 4, 2009 P3 prop is 13.5' (with rounded blade ends) Herk Prop is 13.5' so alles same same GI It will look different because of the different mounting locations and rounded ends on the P3 blades. Dan Quote Link to comment Share on other sites More sharing options...
Nc97 Posted December 6, 2009 Share Posted December 6, 2009 Anyone heard of the USAF upgrading the 54H60-117 model props to the 8 bladed type? Quote Link to comment Share on other sites More sharing options...
Lkuest Posted December 6, 2009 Share Posted December 6, 2009 Anyone heard of the USAF upgrading the 54H60-117 model props to the 8 bladed type? I talked to an Air Force Tech Rep who seemed pretty convinced the plan was to upgrade all H-2's and above with NP2000 prop, and all H models period with the new Valve Housing. If everything I've heard came true, however, we'd be flying X-models right now (C-130E upgraded to H-model config) and Little Rock Guard would be training with AMP aircraft a year or two ago. I don't think anybody knows concretely what's going to happen because plans in the C-130 world tend to change quite a bit. I do know there is a Wyoming plane that is modded right now, which I had the fortune of seeing the other day, and an LC-130H is modded for trials as well, which you can find pictures of at airliners.net under a search for 83-0492. Quote Link to comment Share on other sites More sharing options...
impact12 Posted January 23, 2010 Share Posted January 23, 2010 The P-3 props are manufactured from the same aluminum billet, have the same shaft diameter, same fairings, etc, but the ends are rounded off making them a little shrtoer the the C-130 54H60-91/117 blades. I have been working the flight test of the electronic propeller control system (EPCS) and NP2000 propellers for several years. The test results from the EPCS has been very favorable -- much better rpm control, better synch control, much more reliable and maintainable, much quieter inside the cargo area. We have a requirement and money to put EPCS on the LC-130H fleet. We have a requirement but no money for anything else. NP2000 uses the EPCS so you get all of the EPCS improvements on the NP2000 with additional thrust at lower airspeeds -- kind of an optimization between the performance of the old 3 bladed props and the 54H60 props. We will be heading to Edwards next month to complete the DT&E so that we have the data for a performance manual but as of yet, none of the MAJCOMs have stood up to a requirement for NP2000 propellers. Quote Link to comment Share on other sites More sharing options...
Plaprad Posted January 23, 2010 Share Posted January 23, 2010 Anyone heard of the USAF upgrading the 54H60-117 model props to the 8 bladed type? Last I heard, AMC said no, they don't want them. Quote Link to comment Share on other sites More sharing options...
tusker Posted July 17, 2014 Share Posted July 17, 2014 this Dan is still on the ball!! Quote Link to comment Share on other sites More sharing options...
Herc 308 Posted July 18, 2014 Share Posted July 18, 2014 I know that the guts of the prop on the Herc is different. I tryed to use the socket from a P-3 tool board to removed the prop nut and the P-3 is smaller then the Herc Prop nut. Quote Link to comment Share on other sites More sharing options...
munirabbasi Posted August 9, 2014 Share Posted August 9, 2014 Dear WxFE Our navy is using P-3 orion A/C. i have seen with close view only reduction is dissimilar. (T-56-A-14) . prop is hamilton standard . still there are confusion about prop blade shape Regards Munir abbasi ATI home of hercules training center pakistan Quote Link to comment Share on other sites More sharing options...
Robert Cantwell Posted July 1, 2019 Share Posted July 1, 2019 Both planes use the Hamilton Standard 54H60 Blades. Quote Link to comment Share on other sites More sharing options...
Metalbasher Posted July 2, 2019 Share Posted July 2, 2019 Same blades, hence when Robins shut down the propeller line after the KC-130T accident it effected the USN too. Slightly different processes during processing and rounded tips vs. squared off tips but virtually the same identical prop. As for the NP2000. Big USAF bought off on upgrading the MASS, MAFFS and LC-130s with NP2000 props. That was all to be done...ANG and AFRC were not really happy being stuck with all the remaining Legacy acft (AMC owns only Js) so ANG and AFRC basically said if you are giving us all the left overs, we're going to put NP2000s on them for reliability etc. Funding is huge but worth it...timing is the long pole in the tent, how lone to upgrade all the Legacy with 3.5 and the new props. https://www.ngaus.org/about-ngaus/newsroom/new-urgency Quote Link to comment Share on other sites More sharing options...
Robert Cantwell Posted July 9, 2019 Share Posted July 9, 2019 The blade is the same but shortened and a different blade end shape. Quote Link to comment Share on other sites More sharing options...
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