NEW TO MARKET, LCU-8, BUILT FOR US NAVY, EXCELLENT CONDITION! EVERYTHING WORKING 

LCM-8 "Mike Boat" Specifications Often called the "Mike Boat," the  LCM-8 is a rugged, steel-hulled vessel designed for transporting heavy equipment and troops from ship to shore.  

• Length Overall: According to Wikipedia and Ocean Support Vessels, the craft measures approximately 73 feet 7 inches to 74 feet.
• Beam: 21 feet.
• Displacement: Approximately 105 to 111 long tons when fully loaded.
• Propulsion: Typically powered by two Detroit 12V-71 diesel engines providing 680 hp sustained to twin shafts.
• Capacity: It can carry one M48 or M60 tank, or up to 200 combat troops.
• Performance: A maximum speed of 12 knots light or 9 knots when fully loaded, with a range of 190 nautical miles.
• LCM-8 "Mike Boat" (74-Foot Craft)The LCM-8 is designed for short-range ship-to-shore shuttle operations rather than independent long-distance travel.
  • Fuel Capacity:
    • Standard Military Spec: Approximately 864 gallons.
    • Commercial/Private Builds: Varies by modification; for example, a 1972 Gunderson Marine build is listed with a 640-gallon capacity across two tanks. Other variants have been recorded with up to 900 gallons.
  • Range:
    • Full Load: 190 nautical miles at a speed of 9 knots.
    • Light (Unloaded): Approximately 332 nautical miles at 11 knots.
    • Extended Range: Some modified or civilian versions claim a range of about 400 miles with a 60-ton load.
    • Fuel consumption for the Detroit 12V-71 engine varies significantly based on engine "tune" (naturally aspirated vs. turbocharged), RPM, and load. In a 74-foot craft like an LCM-8, which typically uses twin engines, you must double these figures for a total vessel burn rate. Hourly Fuel Consumption (Per Engine)
      • Idle / Low Speed (1,000 RPM): ~5 to 9 gallons per hour (GPH).
      • Cruising (1,200–1,500 RPM): ~12 to 24 GPH.
      • High Cruise (1,800–1,900 RPM): ~40 to 54 GPH.
      • Wide Open Throttle (2,100–2,300 RPM): ~65 to 80 GPH. 
    • Trip Cost Calculation FactorsTo estimate costs for a specific trip, use the following variables:
      • Standard Efficiency: A common "rule of thumb" for these two-stroke diesels is 1 gallon per hour for every 20 horsepower produced.
      • Twin Engine Total: For an LCM-8 at a steady 10-knot cruise (approx. 1,200 RPM), expect a combined burn of roughly 25 GPH.
      • Engine Type: Turbocharged (12V-71T/TI) models are generally more efficient per horsepower than naturally aspirated (12V-71N) models, but they produce more power and can burn more total fuel at high RPMs.
      • "Wet Stacking" Risk: Running these engines below 1,300 RPM for extended periods is often discouraged as it can lead to incomplete combustion and carbon buildup. 
    • Estimate FormulaFor example, a 50-nautical-mile trip at 10 knots (5 hours) burning 25 GPH total would consume 125 gallons of diesel.

74' x 22' x 4

Hydraulic bow ramp

Built by Bender Shipbuilding, Alabama

Gross tonnage: 95 ton

Net tonnage: 76 tons

Hull depth: 9'

Head room: Cabin - 7', Engine room - 6'.

Shell plate thickness: 1/4"

Bulkhead thickness: 1/4"

(2) 12V-71 Detroit Diesel engines

Steering: Hydraulic

Propellers: 34" x 24"

Fuel capacity: 900 gal

Fuel consumption: 12 GPH

DISCLAMER PLEASE READ

The Company offers the details of this vessel in good faith but cannot guarantee or warrant the accuracy of this information nor warrant the condition of the vessel. A buyer should instruct his agents, or his surveyors, to investigate such details as the buyer desires validated. This vessel is offered subject to prior sale, price change, or withdrawal without notice. Hours on motors and generators cannot be guaranteed and what is listed may change.

A minimum of $595.00 closing fee will be added to the final total price of the vessel. Please ask your selling agent for a complete closing statement as they can change with every sale. Coast Guard Documentation, State Registration, and other fees are not included in the price of the vessel.