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Home / WLF TheySaid / Old USFS and CDF engines?

  • 01/29/2015
  • Fire truck geek

I ‘ve been collecting information on USFS and CDF engines for quite some time now.  I’ve got some questions on the equipment of the late 40s – early 1960s.


I’ve seen a few photos of the old USFS Green Hornets / Marmon Herringtons which appear to use a Wisconsin V-4 to turn their pumps. Anyone know what pump these used and approximate gpm?

Also does anyone know how the Green Hornets got that nickname? The MH is easy, that is who did the conversions, but I can only assume the GH name came from them being green and the Green Hornet being a popular radio serial at the time.


Prior to developing the Model 1 in the 1950s CDF used a Hercules motor for their pumps. So same question, model of motor, pump and gpm.

Last is the apparently short lived USFS Model 58, I understand this was the same as the Model 56 but using an auxiliary engine driven pump in place of the PTO. Looking for info on the standard motor, pump and gpm used on these.



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  1. John Barbour
    February 16, 2015 Reply

    Many CDF engines (not trucks)from this era used a mid-ship pump consisting of a 6 cyl. flat head Hercules motor coupled to a Berkley 250 gpm pump. A very reliable combination!
    For more information and calendars featuring photos of all CALFIRE engines, contact the CDF Museum in San Bernardino.

  2. Your name...
    March 4, 2015 Reply

    Thanks John, I’ll look into the CDF museum.

  3. Mark Shapiro
    May 6, 2015 Reply

    The u.s.f.s. green hornet tankers were built at the Alameda, CA shops
    on Ford two-wheel-drive chassis not on Marmon-Herrington 4-wheel-drive
    chassis. They had a 300 gallon water tank mounted right
    behind the cab, a crew seat behind that and a small 4-cylinder
    engine behind that, which drove a centrifugal pump. They were
    painted dark forest green and a profile that looked like a hornet.
    Hence the name green hornet tanker. I was a crew member on one
    of them in the late 50s – the Big Dalton Canyon tanker on the
    Angeles National Forest.

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