GP35's and Torpedo Tubes

Discussion in 'GP35' started by dricketts, Feb 17, 2013.

  1. dricketts

    dricketts Member Supporter

    Has anyone seen evidence of the black and yellow GP35's without the torpedo tubes?
  2. pbender

    pbender Member Supporter

    The second ( and later ) order of GP35s arrived on the property in orange and white paint.

    Of the GP35s, Only the ones with torpedo tube were ever painted black and yellow.

  3. klrwhizkid

    klrwhizkid Administrator Staff Member Administrator Supporter

    Derrick, for further clarification, the torpedo tube GP35s were 700 - 716.
  4. wpmoreland719

    wpmoreland719 Member Supporter

    Just a question about these "torpedo tube" roof mounted reservoirs: Where were the valves for draining condensation located? I think these engines would pre-date "spitter" valves, but I could be wrong about that. Hopefully someone didn't have to climb onto the roof to open them. Going through a cold spell and having some air brake issues just made me think about this.....

    Pat Moreland,
    Union Mo.
  5. Did any of the GP35s arrive with both torpedo tubes and Alco trucks? Even though it doesn't fit my era I think a black & yellow GP35 would be neat to have in model form.

    Murphy Jenkins
  6. tmfrisco

    tmfrisco Member Supporter

    Murphy, to answer your question in one word: no. As Keith stated the "torpedo tubed" GP35s were in the original order delivered from March 26, 1964 to April 25, 1964. According to Marre these units were also the last black and yellow units on the Frisco. The Alco-designed trucks equipped GP35s were in the third and last order and received these trucks salvaged from FA/FB trade-ins. Only the last GP35 (732) in this group received the traditional Blomberg trucks. There seems to be a disagreement in the text in Marre's book on page 126 in his discussion of unit 720 where he says the second and third orders received the 3000 gallon fuel tank and regular placement of the main reservoir's. He states on page 127 in the discussion of unit 728 that the Alco equipped units had a slightly reduced fuel capacity tank. Maybe it was of such an insignificant amount that the difference was not worth considering. One thing I found interesting is that the gear ratio on the Alco equipped units was 74:18 rather than the customary EMD ratio of 62:15.

    Pat, you are correct that these units did not have the "spitter" valves. We must have had a convenient location to drain the condensation, but I can not remember where it was. I will say that when those "spitter" valves did show up, it was irritating. It also seemed to me that all of those pressure and moisture relief valves seemed to know when I was walking beside them because they inevitably would exhaust with me right beside them. It is no wonder that I have ringing in my ears and hearing loss. When the hearing protection programs were implemented, it did help, but the damage was done.

    Joe Lovett and RogerRT like this.
  7. wpmoreland719

    wpmoreland719 Member Supporter

    Thanks, Terry. We only have one GP38 equipped with spitter valves, and I agree, it always seems to "spit" when I'm right next to it. I wear hearing protection, but it'still loud, and always seems to catch me off guard. I really like the look of the torpedo GP35's, but it seems like they would have been more difficult to maintain, especially with some of the train line piping running along the roof as well.

    Pat Moreland,
    Union Mo.
    RogerRT likes this.
  8. Terry, Thanks for the info. I knew they were delivered in separate orders, but I didn't know if the Frisco ever swapped trucks around on the units after they got them(for repairs or perhaps if one was wrecked).

    Murphy Jenkins
  9. Blackhat Jake

    Blackhat Jake Member

    I had the occasion to shoot the butt-ends of two Frisco GP35s after they received their BN dress. 2551 was SLSF 701, while 2575 was SLSF 725. 2551 (701) clearly has rooftop-mounted air tanks. Notice below the frame there is a hose aimed in the general direction of the elliptic springs of the truck, and that a portion of those springs appear "damp" in this Tri-X photo. While this isn't the aforementioned valve per se, could this be the outlet for the blowdown valves?

  10. TAG1014 (Tom Galbraith RIP 7/15/2020)

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

    I feel like the black and yellow GP-35's were the last "real" Frisco engines! BTW, they really had LOUD air horns! When you were waiting at a grade crossing, you had to roll up the windows if a GP-35 was in the lead.

    Tom G.
  11. wpmoreland719

    wpmoreland719 Member Supporter

    I'm not a 100% on this one, but the pipe angling down toward the truck springs looks like it may be part of the engine oil drain, or possibly the coolant drain.

    Pat Moreland,
    Union Mo.
    Last edited: Mar 15, 2016

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