|Date of first acceptance (LVTR1)||1956||Total acceptances||65|
|Combat weight (land)||82,200lbs
|Height with king post stowed||129"
|Ground clearance, sides||11"
|Ground pressure, zero penetration||8.65psi
|Rolled homogeneous steel|
|Engine||Continental LV-1790-1; 12 cylinder, 4 cycle, 90° vee gasoline|
|Torque||Net: 1440 ft-lb@2000rpm
Gross: 1610 ft-lb@2200rpm
|Transmission||Allison CD-850-4A or -4B, 2 ranges forward, 1 reverse|
|Steering||Mechanical, wobble stick|
|Brakes||Multiple plate, oil cooled|
|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|
|Center guide, single pin, steel with inverted grouser|
|Shoes/track||134||Ground contact length||229.25"
|Max level road speed||30mph
|Max water speed||6.8mph
|Max sideslope||60%||Max vertical obstacle||36"
|Min turning diameter||Pivot||Max fording depth||Floats|
|Cruising range||~190mi, roads
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.