This page last updated was on 01 Januari 2016 

To view a larger image in a new window you have to one click the small photo's.
No photo GMC DUKW see DUKW.
GMC Super DUKW see DUkW Super
GMC 4x4 Truck

GMC 4x4 Truck

GMC 4x4 Truck

GMC 4x4 Truck

GMC 4x4 Truck

GMC 4x4 Truck

GMC 4x4 Amphi Truck (194X)

It looks in some ways like a DUKW, but it is VERY different.

This GMC has only 4 wheels and it has an original right hand steering.

The drive-line an the axles are different from a DUKW.
The vehicle is NOT reduced!
It is an original 4x4.

This GMC amphi truck was found in Austria (2014). The seller knew this truck is one of only 3 built in the (1945 ?)

This truck was landed in Italy in WWII.

Later the truck changed the color to red, as in Italian fire department.

The current owner is restoring it, the dashboard is missing, and a few other items

The current owner is researching the frame number and any info there is.

Do keep in mind!!!!!

There is no visible cut at the body or the frame!
There is no evidence of a sealed hole or that the steering was ever on the left side.
The winch gets the power directly from the driving gearbox. Unlike the DUKW.

Does anybody knows something about the history, the engine number or even what year it was build and why ?

Maybe Chevrolet or Ford CMP origin is not a bad idea??

The vehicle was built by the Yellow Truck and Coach so that must be at the beginning of WWII.
By the end of WWII this company was known as the GMC division of General Motors.

Official US army photo

GMC XM-434e1 (1957 1960) Prototype

Amphibious vehicle with a water tight engine bay and a water tight loading bay.

It needs a sort of canvas snorkel over the radiator intake and two plates over the air outlet and two plates in the doors to swim.

See photo with GMC XM453

Engine: two stroke V 6 diesel 190 HP
Gearbox 2 speed planetary 4 forward, 1 reverse.
Speed land: 90 km/h water: 3.3 km/h
Load 3500 kg

The wheels give water propulsion.
Cab and body are made of aluminium to save weight
Shoe brakes are mount dry in the hull.
Loading bay opens on 3 sides

Not needed after the helicopter came into service.

See also Ford and REO XM-434

Official US army photos
GMC xm453e1 (1957 1960) Prototype

bigger brother of the xm434

Engine: two stroke V 6 diesel 190 HP
Gearbox: 2 speed planetary 4 forward, 1 reverse.
Speed land: 90 km/h water: and 3.3 km/h
Load: 5000 kg

The wheels give water propulsion.
Cab and body are made of aluminium to save weight.
Shoe brakes are mount dry in the hull.

Not needed after the helicopter came into service.

See also Ford and REO XM-453
British GMC proto

British GMC proto

British GMC proto
GMC prototype (1990)

Amphibious truck base on 1967 British GMC (Handy Van ???).
It has the engine in the middle, driving the rear axle.
it has a jet-drive in the front there for it will go backwards through the water.

The first photo was from the last millennium.
The front half of the roof used to slide over the rear half
that way it was a 1/2 cabriolet. ;-)

The other photos are from 2011/2012 and show some of the construction details.
However it is clear that some parts are now missing.

Engine: Perkins diesel
Gearbox: 3 + 1 
Water-propulsion: water-jet in the front driven (by home made pto ??) from the engine front.

British GMC proto
British GMC proto
British GMC proto
British GMC proto
British GMC proto
British GMC proto
British GMC proto
drive shaft
British GMC proto
inside front view
British GMC proto
inside rear view
British GMC proto
control box
SEEGOLF GOLF VW Seegolf (1984)

Built by Prof.Dr. Fiala from Volkswagen Research Centre. It was powered by a 150 PS engine and was doing good performance in water. The pontoons could be moved over its top for road ability. The prop had a long shaft and was lowered down in the water. The Golf was not amphibious on its own, it just floated on the pontoons.

Picture and info was send in by Rene Pohl the author of the book
"Mit dem Auto baden gehen", (SOLD OUT).
No Photo GOER see Caterpillar GOER.
Gortha 5000

Gortha 5000
Gotcha 5000 (Scrambler 4) (1970)

4 wheel Amphib with a body made of fibreglass.
Skid steering by hydraulic brakes (2 sticks or by steering wheel)

Engine: Tecumseh 1 cylinder 4 stroke 8 or 10 hp
Length: 2750 mm Width: 1400 mm
Weight: 220 kg load: 300 kg
Speed Land: 50 km/h water: 6 km/h ?

Info was send in by Scott Floyd.
No photo GPA see the SEEP
GSP 55

GSP 55

GSP 55

GSP 55

GSP 55

GSP 55
GSP 55 (Gusenichniy Samokhodniy Parom) (1959)

Heavy Amphibious Ferry

The GSP is built on two tracked amphibians, placed side by side and flanked by two large steel pontoons.

They enter the water one by one and are then linked.
One left handed and one right handed is needed to make one ferry.

Once linked together, the pontoon swings down

Each unit carries retractable track ways, which enable vehicles to be loaded or unloaded either side.

Loading and unloading, goes by a ramp extending from the outer sides of the pontoons. The pontoons are filled with foam to make them unsinkable.

The tracks of the GSP is similar to the PT-76 light amphibious tank family and has seven road wheels. The idler sits at the front and the drive sprocket at the rear.

When entering the water, a trim-vane is erected at the front of the hull. Each unit has two propellers mounted in separate tunnels under the hull.

Engine: 8D6 (W6K) diesel 200 hp
Weight: 17.000 kg each amphibian
Load capacity: 52 000 kg
Draft: 1200 mm

Speed land: 40-45 water: 10 km/h
Range land: 500 km water: 8-10 hours

Boat with wheels front

New bow strut

Boat with wheels rear

New stern strut
The Gray Boat (with wheels)  (2001)

Build by Kean Foo

It is NOT a Sealegs Cloon,
At the time it was build the Sealegs was not known.
Sealegs came in 2003 public with there Amphib!

BOW parts
Stern parts

Kean started years ago -- the summer before 9/11.

Length: 4300 mm (hull only)
Wide: 1320 mm
The hull: is made of GRP

Engine (Sea): Mercury 30HP 2-stroke
Speed (Sea):  30 kts (WOT)

Engine (Land): 4 hp (12V DC electric motor driving a hydraulic pump)
Speed (Land): < 5 km/h (estimate -- brisk walk)

Latest modifications stainless steel landing gears.

More info is under way. (water photo's)
No photo Grocco see Croco
Grosse SchwimmWagen

Grosse SchwimmWagen

Grosse SchwimmWagen

GSK K61 (1960)

Three different names for this vehicle exist.
The GSW stands for: Grosser SchwimmWagen that means big amphibian. or Vollkettenschwimmfahrzeug = peoples amphibian or Schwimmketten-Transportfahrzeug = Swimtracked-Transporter

Engine: 2 stroke water cooled JAZ-206 diesel 135 hp @ 3000 rev.
Gearbox: 5 front 1 rear
Length: 9150 width: 3150 height: 2150 mm
Weight: 9550 kg load road: 3000 kg load water: 5000 kg or 60 troops

Fuel: 260 l
Range: land 260 km water: 8-10 hours
Speed land: 35 km/h water: 9 km/h
Water propulsion: two propellers mounted in tunnels.
Two PTO powered bilge pumps 400 l/min.

Suspension torsion-bars
Steering by breaking one side

85 vehicles where used by the NVA that was the Nationalen Volksarmee (peoples army) of the DDR.

The NVA still exists you can find it/them on
No picture GT-TM see GAZ - ASM GAZ-34038

General Purpose Vehicles makes 4 x 4 up to 10 x 10 army vehicles.

Most of them are amphibious without preparation.

They sit so low in the water that it is better to say the do not sink. ;-)

Gulf Marsh Buggy

Gulf Marsh Buggy

Gulf Marsh Buggy
Gulf Marsh Buggy (1937)

She was designed by Abot A. Lane of the Gulf R&D Company and was built at Pittsburg, PA.

She has the largest tires ever made up till then, having a diameter of 3.3 meter.
Each weighs 160 kg and contains an inner tube weighing 65 kg.
They are mounted on hollow aluminium wheels.
Buoyancy is provided by the combination, so that the vehicle can swim.

Over the tires rubber straps are tied to give some traction on the mud and improve water propulsion.

Wide: 4000 mm

Engine: small V 8 petrol auto mobile
Gearbox: ??? to chain drive 4x4
Speed land: 30 km/h water: 6 km/h

In 1954 the US Army was testing the Marsh Buggy after 17 years of slushing through swamps.
Gull XM 148

Gull XM 148

Official US army photos

Gull XM 148 (1953) prototype

The hull was made from reinforced fibreglass.

Builder: AFC Brill motors company Philadelphia
Engine: 250 hp Hall Scott 6 cylinder in line
Gearbox: 5 speed Spicer 8850A
Transfer-box: Wiconsin 2 speed with a PTO to the 2 blade 34 inch propeller.
Weight: 20 000 kg load: 5000 kg
Length: 12 000 ? width: 2800, height: 2900
Tyres: singles 14,75 x 20

The rudder was connected to the front wheels and steering wheel
It started as the T118 5-ton Amphibious Truck (1952)
Later re designated XM 148)

John C has emailed (9 Jan 2003)
He saw at Fort Story in 1973 a derelict fibreglass hull partly buried in the sand
of what he thought was a Drake.
But this has to be the hull of the Gull because the Drake has a metal hull.

In 1954 a second prototype Gull was made, the XM 148 E1 that one differs only in details.
Gusev Amphib

Gusev Amphib

Gusev Amphib
Gusev Anatoliy Amphibian (2006)

Inspired by the ZIL Blue Bird and the Stolly

It is a 6x6 with 2 propellers in tunnels.

The 4 wheel steering can be disconnected on the rear axle.
Then only the front wheels steer

Engine: diesel 2000 cc 76 hp 132 nm
Gearbox: 5 forward 1 rev
Transfer-box: 2-speed
6 Portal axles
3 diff lockers and gear lockers.
6 wheel independent coil suspension
6 wheel disk brakes

It is possible to open three hatchways and to remove the upper halves of all four doors

Found on
Now a dead link

GY Boat Design ltd --- 8.5 m Amphibious Boat

GY Boat Design ltd --- 8.5 m Amphibious Boat

GY Boat Design ltd --- 8.5 m Amphibious Boat
GY Boat Design ltd --- 8.5 m Amphibious Boat (2012)

The hull bottom has 3 compartments that house the 3 landing wheels and hydraulic arms.
The compartments are closed off with hinged flaps when the boat is in sea mode.
In sea mode the compartments are flooded when the boat is at rest and venturi dry when she is under way.

Length Overall: 8.50 m
Length (Waterline): 7.20 m
Beam Max: 3.16 m
Draught (mean):  0.50 m
Displacement (half load): 4700 kg
Engine:  Volvo D6-370hp @ 3500 rpm
Drive:  Volvo DPH Duoprop
Fuel: 250 Litres
Fresh Water: 100 Litres
Construction: Carbon composite / epoxy resin
Speed  on water (half load): 36 knots
Range: 200nm @ 28 knots
Speed onshore: 10km/h
Classification: CE Category: B Offshore

Info came from Claude from France.
If you want to send E-Mail to the web master (Amphi)(Amphi)Hans Rosloot