Features

19XR-SAR Search and Rescue System hovercraft at hovercraft.com
19XR Search and Rescue Hovercraft - FEATURES
Performance:
AcuPlow™
Highly effective hull shape developed by Universal Hovercraft. Our hydro-dynamically shaped hull aerates and detaches water as it passes under the craft. This hull shape offers features including braking, high speed stopping, emergency braking and effective plowing.

4-stroke power
All 19XR series hovercraft are powered by reliable 4-stroke engines. These engines are fuel efficient and more environmentally friendly than their 2-stroke counterparts. 2-stroke engines produce more pollution from the combustion of the oil in the gas. Additionally 2-stroke engine oil can be expensive. The mixing ratio is about 3 ounces per gallon of gas; this burns about five gallons of oil every 100 hours.

Future hovercraft will all be powered by 4-stroke engines. They are more acceptable to occupants and spectators because of the lower noise levels and are accepted on a larger percentage of lakes and rivers.

Noise control
We use large diameter slow turning propellers that generate very low levels of noise. Noise comes from two places in a hovercraft; the engine and the propeller or fan. The slower you turn a propeller the less noise it produces. This is why our standard design features two ducts. Each duct is designed for its specific application and turns at a very low rpm.

The lift system uses a 26 inch 9-bladed fan to provide a high volume of air to the lift system. This fan turns a maximum of 2,500 rpm and has a tip speed of 380fps. This slow rpm keeps the noise to a minimum while providing an excess of lift air.

The thrust systems 54 inch high pitch propeller is an important factor in noise reduction. High pitch allows the propeller to turn very slow yet produces more thrust than any craft in its range.

Surface capability

Useful for transportation over nearly any surface including; salt or fresh water of any depth, sand, mud, mangrove, rapids, floods, grass, swamp, desert, ice, and snow.

Sea state
25-30 mph winds. 2 foot chop. 3 -6 foot waves.
The 19XR's length, low center of gravity, high rise bow and AcuPlow™ hull make it the most stable hovercraft rescue platform available today.

Hovercraft Slope Gradient, Surface Capability and Sea State

Slope Gradient
The slope of a surface expressed as a percentage of change in elevation per unit of distance traveled. Example: 10% grade = 10 feet of increased elevation over a 100 foot distance. The 19XR can traverse 20% to 40% grade depending on the configuration of the craft.

Systems:
AcuPlow™ system
Highly effective hull shape developed by Universal Hovercraft. Our hydro-dynamically shaped hull aerates and detaches water as it passes under the craft. This hull shape offers features including braking, high speed stopping, emergency braking and plowing.

Control

Handlebar controls turn four vertical rudders set behind the thrust propeller. A self locking lever controls the horizontal trim wing (this helps balance the craft). Left twist grip throttles the lift engine. Right twist grip throttles the thrust engine. Both have friction lock knobs.

Hovercraft Controls

Flotation

19XR Rescue is built from a composite blend of urethane foam and fiberglass rendering the craft unsinkable. Foam fills every available cavity in the hull providing more than 3,300 lbs of positive flotation.

Hovercraft Flotation

Low Profile Deck
Our low profile deck in the IC and SAR craft allows easy access for passengers and cargo. With no sidewalls potential victims can easily be pulled from the water to the deck. Cargo such as building supplies, pumps, drills, survey equipment and other gear can be easily loaded and lashed to the deck with 8 deck cleats.

Deck rail system

Our deck railing system allows the craft to be easily converted. Seats, rescue boards, tie down cleats, boxes, baskets and any other gear within the payload capacity can be reconfigured and mounted using our slide and lock bolt or cleat system.

Power

80 amp engine driven alternator. Two 12V gel cell batteries (no possibility of leakage) power all onboard systems. Four 12V power outlets are available for additional equipment.

Instrumentation
Tachometer, Air Speed Indicator, Water Temp, Oil Pressure, Fuel level, Voltage, Hour Meter, level gauge and 6 inch Compass.

Hovercraft Instrumentation

Fuel

9 gallon aluminum tank supplies both engines with 87-91 octane fuel.

Hovercraft Fuel

Thrust engine

Two options are available; both engines are 4-stroke and electric start. The base model is equipped with a 35 hp, twin cylinder, air cooled, carbureted engine. The upgraded 135 hp model is a twin cylinder, liquid cooled, turbocharged, fuel injected engine. Upgraded engine increases speed, payload and rough water capability.

Hovercraft Thrust systems

Thrust propeller
2-blade low noise propeller manufactured by Universal
Hovercraft. A composite wood-carbon structure gives the propeller long life, resistance to wear and the ability to ingest rocks, ice and other debris without seriously damaging the blades.

Hovercraft Thrust systems

Lift engine
4-stroke, 16 hp, air cooled, carbureted engine with electric start. Smooth running, low maintenance, good fuel efficiency and high reliability.

Hovercraft Lift systems

Lift fan

8-blade, 26 inch, low noise lift fan with spinner. Good airflow and slow turning, precision shaped blades give this fan the ability to perform in the toughest environments.

Hovercraft Lift systems

Skirt system

Bag type skirt. Made from vinyl coated nylon. Bag skirts are more stable, agile and easier to repair than their segmented skirt counterpart. Bag skirts also increase rough water capability.

Landing skids

When the 19XR is at rest or stopping, landing skids will contact the surface. These skids are made from a composite blend of Kevlar and PVC foam. This blend is resistant to wear and can be replaced as necessary.

Brakes

Emergency stopping can be achieved two ways. Reducing lift engine rpm will increase the drag resulting in an effective brake. Dumping the lift fan (dropping throttle from "cruise" to "off") will cause a rapid deceleration over most surfaces. Our AcuPlow™ hull allows the pilot to accurately control braking over water.

Towing capability
Both the 52 hp and 135 hp versions of the craft are capable of towing with the wide stance tower. The tower includes a tow hook at the top center which allows the hovercrafts operator to easily control the craft while towing. Tow hook will handle up to 700 lbs.




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