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United States Forest Service
#36
The Model 51 was first introduced in 1968-69 and the last was built in 1990. The last one (E-52 Summit station Sequoia National Forest) was retired in 2005. There are still a few being used by the USFS as reserve engines.



Sierra National Forest Model 51 Ford F600.



Credit Sierra National Forest archives


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Aaron Woods
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United States Forest Service - by Aaronw - 04-17-2011, 01:40 AM
United States Forest Service - by Monrovia1 - 04-17-2011, 01:45 AM
United States Forest Service - by Monrovia1 - 04-17-2011, 01:47 AM
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United States Forest Service - by SrFireOfficial - 11-14-2013, 02:39 AM
United States Forest Service - by Aaronw - 02-16-2014, 11:39 PM
United States Forest Service - by Aaronw - 04-19-2014, 04:18 PM
United States Forest Service - by Aaronw - 04-19-2014, 04:24 PM
United States Forest Service - by Aaronw - 04-19-2014, 04:29 PM
United States Forest Service - by Dickey - 04-19-2014, 07:40 PM
United States Forest Service - by B95MACKFIRE - 04-20-2014, 11:03 AM
United States Forest Service - by Aaronw - 04-20-2014, 01:55 PM
United States Forest Service - by Monrovia1 - 04-21-2014, 01:56 AM
United States Forest Service - by mnsand - 05-25-2014, 06:54 AM
United States Forest Service - by FDNY 10-75 - 05-25-2014, 10:00 PM
United States Forest Service - by Aaronw - 06-22-2014, 11:36 PM
United States Forest Service - by Monrovia1 - 07-03-2014, 07:48 PM
United States Forest Service - by Aaronw - 08-04-2014, 04:13 PM
United States Forest Service - by Aaronw - 08-05-2014, 11:40 PM
United States Forest Service - by Aaronw - 08-05-2014, 11:51 PM
United States Forest Service - by Aaronw - 08-06-2014, 12:02 AM
United States Forest Service - by Aaronw - 08-07-2014, 01:14 AM
United States Forest Service - by Aaronw - 08-07-2014, 01:27 AM
United States Forest Service - by Aaronw - 08-13-2014, 04:03 AM
United States Forest Service - by Aaronw - 08-13-2014, 04:07 AM
United States Forest Service - by thom2943 - 08-16-2014, 10:10 PM
United States Forest Service - by Aaronw - 08-17-2014, 01:39 AM
United States Forest Service - by Aaronw - 12-25-2014, 05:35 AM
United States Forest Service - by ScaleCentral - 04-24-2015, 01:34 PM
United States Forest Service - by ScaleCentral - 04-24-2015, 01:35 PM
United States Forest Service - by ScaleCentral - 04-24-2015, 01:35 PM
United States Forest Service - by ScaleCentral - 04-24-2015, 01:40 PM
United States Forest Service - by Guest - 05-27-2015, 01:16 PM
United States Forest Service - by radioinstl - 06-16-2015, 07:55 PM
United States Forest Service - by radioinstl - 06-16-2015, 07:59 PM
United States Forest Service - by Monrovia1 - 06-17-2015, 12:03 AM
United States Forest Service - by Aaronw - 12-20-2016, 02:51 AM
United States Forest Service - by Monrovia1 - 01-02-2017, 03:00 AM
United States Forest Service - by nozzleman - 08-02-2017, 07:51 PM
United States Forest Service - by Monrovia1 - 08-05-2017, 10:32 PM
RE: United States Forest Service - by halab - 04-24-2023, 03:06 AM
United States Forest Service - by Aaronw - 07-06-2011, 02:16 PM
United States Forest Service - by Aaronw - 07-06-2011, 02:20 PM
United States Forest Service - by Aaronw - 07-06-2011, 02:27 PM
United States Forest Service - by Aaronw - 07-06-2011, 02:35 PM
United States Forest Service - by Aaronw - 07-06-2011, 02:37 PM
United States Forest Service - by Aaronw - 07-06-2011, 02:51 PM

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