SLSF FP7 - Nathan M5 horns

Discussion in 'FP7' started by meteor910, Jul 4, 2014.

  1. meteor910

    meteor910 2009 Engineer of the Year Staff Member Supporter

    Here's an interesting pic I found on Facebook - from the Frisco All Aboard, February 1951.

    The photo features the then new Frisco EMD FP7's, SLSF 5040 to SLSF 5051, delivered in Dec 1950 - Feb 1951. It shows the five-chime horn used on these units, almost certainly a Nathan M5, with all horns facing forward. Not unusual for the Frisco to specify all five horns forward during this time period, but unusual for the Frisco to specify a Nathan - this was the time period when they first fell in love with the Leslie. Leslie five chimes, all horns forward, were being fitted on the Frisco's F and FA units at this time, and on geeps and E's as well. Why the Nathan on the FP7's? (A few of the GP7's also carried the Nathan horn setup.)


    Attached Files:

  2. gjslsffan

    gjslsffan Staff Member Staff Member

    Thanks Ken,
    What an interesting tidbit of info. So many interesting things to ponder concerning the photo and caption. Wonder why Frisco went with Leslie instead of Nathan?
    Also the FP7 seems to be attached to a freight train, and the only unit. Maybe the heater hasn't been turned up as the snow is building on the nose and windshield. So far I have resisted Facebook as it looks to me to a sort of huge potential virus. But it seems maybe I should re-consider it :)
    Now I gotta build a SL-SF FP7 :):)
    As always thank you for posting Ken!
  3. FriscoFriend (Bob Hoover RIP 4/12/2018)

    FriscoFriend (Bob Hoover RIP 4/12/2018) Passed Away April 12, 2018 Supporter

    Maybe we will never know why, but combining the facts that this locomotive was purchased primarily for passenger service, to be operated as a single unit going one direction facing forward, all five chimes oriented this way in a way makes since. Maximum sound approaching grade crossings with passengers in tow.

    In contrast, the GP15-1's were delivered with the same horn but for use as freight units switching rural branchlines operating in both directions. Go Figure!
  4. TAG1014 (Tom Galbraith RIP 7/15/2020)

    TAG1014 (Tom Galbraith RIP 7/15/2020) Passed Away July 15, 2020 Supporter

    Probably EMD and/or Frisco got a better offer from Nathan to furnish the air horns than from other vendors. I remember when those engines first came to Springfield. It was a whole new sound. Some of the E and F units still had single horns and you couldn't tell the Frisco diesels from the Missouri Pacific engines until the FP-7's came and they started putting the air chimes on all the road diesels ca. 1951. That's also a good way to date photos of the period: before or after 1951, single horns vs. air chimes.

    Tom G.
  5. TAG1014 (Tom Galbraith RIP 7/15/2020)

    TAG1014 (Tom Galbraith RIP 7/15/2020) Passed Away July 15, 2020 Supporter

    Speaking of FP-7 5040, the Frisco Archive photo of E-7 2000 (With FP-7 5040 in the background) almost looks like the Frisco advertising art on matchbooks, calendars, ticket envelopes etc. If 5040 were parked just a little closer.

  6. meteor910

    meteor910 2009 Engineer of the Year Staff Member Supporter

    Note the caption under the picture mentions six locomotives - the Frisco FP7's came in a batch of six in Dec, 1950, with six more in Feb, 1951. My pics show Nathans on the first six, but the second six only shows them on a couple of units. This could be misleading, as over time, all sorts of horn swapping went on. Photos show the FP7's mounting not only the Nathan M5, but also Leslies - both with five horns forward, and the later three forward, two rearward orientation. All those Leslie pics are aged units, however, suggesting a swap out likely occurred during a shopping.

    What you guys are suggesting about these five chime Nathans led the way for the Frisco to mount five chimes on all their road units makes sense. I hadn't thought of that. Some boss down in Springfield probably thought the Leslie sounded better than the Nathan, and the love affair started! I'm wondering if the last batch of F7's had a few units that trialed the five chime Leslie?

    Tom - Look for one of the Intermountain FP7's on eBay. They look pretty good, only need a few fixes, and run fine. As opposed to the mating IRC F7B, the FP7 correctly does not have the d/b fan. (I still can't get over that they screwed up the F7B!). (*)

    I found several other interesting Frisco pics on Facebook, and will post them when I have a chance.


    (*) I submitted an article on fixing up the IRC FP7 for Richard to use in The Meteor, but he passed away before he had a chance to publish the next issue.
  7. TAG1014 (Tom Galbraith RIP 7/15/2020)

    TAG1014 (Tom Galbraith RIP 7/15/2020) Passed Away July 15, 2020 Supporter

    I bought some Intermountain N scale FP-7. I had them pre-ordered for FOUR years before they were delivered! They DO look nice and run great, but Intermountain's (as well as other manufacturers') announcement/release/delivery "systems" are shameful.
  8. yardmaster

    yardmaster Administrator Staff Member Administrator Supporter

    Ken, excellent story to share. Echoing Tom's thoughts, it does really place the time for this type of detail from a modeling standpoint. Keep up with the old All Aboards; they're filling in some gaps in my knowledge base for this decade.

    Best Regards,

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