| LVTR1A1: General | |||
| Date of first acceptance (LVTR1) | 1956 | Total acceptances | 65 |
| Manufacturer | FMC Corp. | Crew |
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| LVTR1A1: Dimensions | |||
| Combat weight (land) | 82,200lbs 37,300kg |
Height with king post stowed | 129" 328cm |
| Length overall | 381" 968cm |
Width overall | 140.5" 356.9cm |
| Tread | 116.7" 296.4cm |
Ground clearance, sides | 11" 28cm |
| Ground pressure, zero penetration | 8.65psi .607kg/cm² |
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| LVTR1A1: Armament |
| None |
| LVTR1: Armor | |||
| Assembly | |||
| Welding | |||
| Hull | |||
| Rolled homogeneous steel | |||
| Maximum | .625" 1.59cm |
Minimum | .25" .64cm |
| LVTR1A1: Automotive | |||||
| Engine | Continental LV-1790-1; 12 cylinder, 4 cycle, 90° vee gasoline | ||||
| Horsepower | Net: 704@2,800rpm Gross: 810@2,800rpm |
Torque | Net: 1,440 ft-lb@2,000rpm Gross: 1,610 ft-lb@2,200rpm |
Fuel capacity | 456gal 1,730L |
| Transmission | Allison CD-850-4A or -4B, 2 ranges forward, 1 reverse | ||||
| Steering | Mechanical, wobble stick | ||||
| Brakes | Multiple plate, oil cooled | ||||
| LVTR1A1: Suspension | ||
| Type | Road wheels | Track return rollers |
| Torsilastic | 9 pairs of dual/track | 5 dual/track |
| Drive sprockets | Idlers | Shock absorbers | 17-tooth rear drive | Dual compensating at front of track | None |
| LVTR1A1: Track | |||||||
| Center guide, single pin, steel with inverted grouser | |||||||
| Width | 20.75" 52.71cm |
Pitch | 5" 13cm |
Shoes/track | 134 | Ground contact length | 229.25" 582.30cm |
| LVTR1A1: Performance | |||
| Max level road speed | 30mph 48kph |
Max water speed | 6.8mph 11kph |
| Max trench | 144" 366cm |
Max grade | 70% |
| Max sideslope | 60% | Max vertical obstacle | 36" 91cm |
| Min turning diameter | Pivot | Max fording depth | Floats |
| Cruising range | ~190mi, roads ~57mi, water ~306km, roads ~92km, water |
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LVTR1 was the recovery and maintenance variant of the LVTP5. A winch was installed with a maximum single-line pull capacity of 45,000lb (20,400kg), and the power for this was provided by the Willys 4-cylinder 48hp engine common to the M38A1 quarter-ton truck. A boom was mounted on the front of the vehicle to assist in removing engines or handling other loads, and the crew chief acted as the crane operator. The boom had a maximum lift capacity of 7,000lbs (3,000kg). The maximum boom reach was 141" (358cm) at horizontal or 99" (250cm) at 45°. At horizontal, the boom could lift a load to 77" (200cm), and to 187" (475cm) when at 45°. The boom could be traversed to 85° right or left of center, and its maximum elevation was 65°. A General Electric welder was fitted, which could also be used as a battery charger or assist with cold-weather starts. Two air compressors were also installed.
Modifications to the LVTR1's engine air intake and exhaust system produced the LVTR1A1. The most obvious external difference was a large housing on the vehicle's rear roof above the engine.
