USNS Powhatan (T-ATF 166) on 5 October 1983.
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Class: POWHATAN (ATF 166)
Design: SAIP Project No. 744.75
Displacement (tons): 1,387 light, 2,000 full
Dimensions (feet): 226' oa, 204'wl x 42' x 15' max nav
Armament: none
Accommodations: 4 officers and 13 enlisted
Speed (kts.): 15
Propulsion (HP): 4,500
Machinery: Diesel electric, 2 screws
Construction:
| ATF | Name | Ord | Builder | Keel | Launch | Deliv |
| 166 | POWHATAN | 12 Sep 1975 | Marinette Marine | 30 Sep 1976 | 24 Jun 1978 | 15 Jun 1979 |
| 167 | NARRAGANSETT | 12 Sep 1975 | Marinette Marine | 5 May 1977 | 12 May 1979 | 9 Nov 1979 |
| 168 | CATAWBA | 12 Sep 1975 | Marinette Marine | 14 Dec 1977 | 22 Sep 1979 | 28 May 1980 |
| 169 | NAVAJO | 12 Sep 1975 | Marinette Marine | 14 Dec 1977 | 20 Dec 1979 | 13 Jun 1980 |
| 170 | MOHAWK | 27 Feb 1978 | Marinette Marine | 22 Mar 1979 | 17 May 1980 | 16 Oct 1980 |
| 171 | SIOUX | 27 Feb 1978 | Marinette Marine | 22 Mar 1979 | 15 Nov 1980 | 12 May 1981 |
| 172 | APACHE | 27 Feb 1978 | Marinette Marine | 22 Mar 1979 | 28 Mar 1981 | 30 Jul 1981 |
Disposition:
| ATF | Name | T | Inact/Cust | Strike | Disposal | Fate | MA Sale/Depart |
| 166 | POWHATAN | T | 26 Feb 1999 | 25 Feb 2008 | 26 Feb 2008 | Trf | -- |
| 167 | NARRAGANSETT | T | 30 Sep 1999 | 5 Jun 2002 | 10 Feb 2009 | Small boat | -- |
| 168 | CATAWBA | T | In service 2021 | -- | -- | -- | -- |
| 169 | NAVAJO | T | INACT | 1 Oct 2016 | DISP | FATE | -- |
| 170 | MOHAWK | T | 16 Aug 2005 | 31 Aug 2015 | DISP | FATE | -- |
| 171 | SIOUX | T | 30 Sep 2021 | 30 Sep 2021 | DISP | FATE | -- |
| 172 | APACHE | T | In service 2021 | -- | -- | -- | -- |
Class Notes:
Approved characteristics for a Fleet Ocean Tug (ATF), SCB Project No. 724.67, were promulgated on 7 May 1966 with a single change on 19 July 1966. One ATF was requested in FY 1967 but was deferred and no number was assigned. Approved characteristics for the FY 75 Fleet Tug (ATF), SAIP Project No. 740.75, were promulgated on 14 November 1973 without later changes. Approved characteristics for the FY 1975 Fleet Tug (ATF), Project No. 744.75, were promulgated on 28 December 1973 with a final change on 15 January 1981. [The difference between 740 and 744 is unresolved.] Construction of the first four delayed by strike at shipyard starting 1 May 1977. These economical ships were based on a commercial design and had no salvage or diving equipment.
Ship Notes:
| ATF | Name | MA | Notes |
| 166 | POWHATAN | FY 1975. Leased to commercial salvage firm Donjon Marine Co., Hillside, NJ, [which chartered her back to the USN.] Trf. to Turkey as INEBOLU (comm. Mar 2008). | |
| 167 | NARRAGANSETT | FY 1975. Leased to Donjon Marine Co., Hillside, N.J.[, which chartered her back to the USN.] (Lease pending Nov 2000.) Transferred to NAVAIR (Commander Carrier Strike Group 4) for use as tow/service vessel 2 Aug 2002, reclassed as boat 10 Feb 2009, Navy hull registry no. 226NS7901. | |
| 168 | CATAWBA | FY 1975. To MSC 28 May 1980, still in MSC service 2021. | |
| 169 | NAVAJO | FY 1975. In layup at Pearl Harbor 2017. | |
| 170 | MOHAWK | FY 1978. In layup at Phila 2017. | |
| 171 | SIOUX | FY 1978. Out of MSC service 2021. | |
| 172 | APACHE | FY 1978. Deliv. 23 Jul 1981 to MSC, in service 30 Jul 1981, still in MSC service 2021. |
Page Notes:
Compiled: 2 Oct 2021
© Stephen S. Roberts, 2021
Sources: DB, Maroon, PHS, NVR