Mk 27 Medium Tactical Vehicle Replacement (MTVR) Extended Bed (XL)
Mk 27A1 MTVR XL Ready to Accept Armor (RTAA)
Mk 28 MTVR XL w/ Winch
Mk 28A1 MTVR XL w/ Winch RTAA
The Mk 27 and Mk 28 extra long wheel base cargo variants of the MTVR family used state of the art commercial technology including an independent suspension system, electronically controlled engine and transmission and a central tire inflation system, which increased the off-road maneuverability and mobility of the vehicle. The difference between the Mk 27 and Mk 28 was that the Mk 28 had a 20,000 pound capacity self-recovery winch while the Mk 27 did not.
The Mk 27 and Mk 28 were 7-ton, 6x6 trucks designed for use on all types of roads, highways and cross-country terrain. They were capable of traversing a 60 percent gradient, a 30 percent side slope up to 15 mph and a 40 percent side slope at 5 mph. They were capable of fording 60 inches of water and had an on-road cruising range of 300 miles. Both variants were capable of being transported by highway, rail, sea and air.
The Mk 27 and Mk 28 cargo variants of the MTVR family were intended to replace existing M814, M927, M927A1, M928 and M928A1 trucks in USMC service. The Mk 27 and Mk 28 cargo variants entered service in December 2002.
Following the introduction of the MTVR Armor System (MAS) in 2004-2005, Mk 27A1 and Mk 28A1 variants was introduced. Mk 27/28A1s were referred to as "Ready to Accept Armor" (RTAA). These models had upgraded cab mounts, armored flooring, upgraded suspension, and air conditioning. RTAA vehicles were not considered armored vehicles and were interchangeable with standard Mk 27/28s to satisfy T/E allowances.
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