This page was updated on 128 Aug 2016 
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T 37

T-37 USSR (1930)

Small Amphibious Tank

The USSR developed her own amphibious tank from the Vickers Light Amphibious Tank
It only swims with floats and no heavy armour

In fact the bottom one is a T 38

I think they all look all the same. ;-)
T 37A Ford T-37A


T 38 Ford T-38 USA 1930


T 40

T 40
T-40 USSR (1940)

Date of production October 1940-1941
Engine 1: Imported Dodge D-5's 80 hp
6 prototypes where build

Engine 2: GAZ-202 (GAZ-11)
Weight: 5500 kg

The length of the vehicle was increased by 120 mm, and it's width was increased by 50 mm. The height of the vehicle was lowered by 20 mm.

The crew consisted of two men: a driver (located in the front of the hull) and a commander (in the turret).

The transmission was in the front of the vehicle like the T-38. At the rear there were two fuel tanks of 100 litres each. The tank had one propeller and two rudders

Plus minus 375 amphibious tanks where build.

In 1941 they were renamed T-40S (NOT amphibious) 443 NON amphibious where produced in 1941

T 63 T 63

This one is from China and is a light amphibious tank

Tatra 801
Tatra 801 (1947 - 1952 ??)

The Tatra amphibious prototype was based on the all-terrain Tatra 800,
But they used some parts from the civil limousine T-600 Tatraplan (like the engine ?)
Most information is lost in time.

The only known picture of T-801 is a later coloured in BW photo!

Engine: air cooled boxer 55 hp 2438 cc (T900?) in the rear
but other info says it was a V shaped 4 cylinder (air cooled??)

Transfer-box: permanent four wheel drive
Water propulsion: propeller

Info Jan from Prague.
Tatra 807

Tatra 807 rear side
Tatra 807 (1947- 1952) ??

It was a prototype only
and most information is lost in time.

Engine: 300 hp 12-cylinder water-cooled - same engine as in a T-34 tank
Water propulsion: 2 propellers

Load: 24 persons or 3000 kg

Info Jan from Prague.
Daus 214

Daus 214

Daus 214
Tempo Daus 214 (1956) (1958 ??)

Although Otto Daus had officially retired, in 1956 he returned to work with Tempo on a small number, (10??), prototype amphibious vehicles for the army.

It was a three-wheeled, front wheel drive Amphib
The light armoured amphibious FWD was build in 1958 ??

Engine: Heinkel
Water propulsion by a propeller, on the road it was moved up in to a recess in the bottom.

The German Army was not impressed with the armour of this amphibian.

There was not any civilian market for these strange machines.

One single prototype has survived.

Daus 214 Daus 214 armour Daus 214 armour
Terra Marina Terra Marina

The Terra Marina Amphibious Cruiser was built by the Terra Marina Manufacturing Company of Houston, Texas. The company was in business from 1957 to 1967
The concept of the company was to build a dual purpose trailer/houseboat. Dual purpose vehicles were very popular in that era (especially the 50s and early 60s.



Ter-O-Sno (1967)

This one was made in Montreal Canada.

Engine: Minerelli Motori 1 cylinder 90 cc 2 stroke motorcycle engine 8.5 hp.
Gearbox: 3 speed forward + neutral
The propeller was an option and was easily to be removed. (to save ankles)

Option winter kit:
A ski that fits under front wheel
2 extra rear wheels to fit behind the normal rear wheels and tracks to cover them.

Speed land: 70 km/h water tires: 8.5 km/h water propeller: 15 km/h
Length: 1667 mm width: 1016 mm hight: 787 mm clearance: 228 mm weight: 68 kg
She is just like the Titanic unsinkable.
Terrajet 1971
Terrajet 1973
Terrajet 1973
Terrajet 1973
Terrajet 1973
Terrajet 1973 engine
Terrajet 1969 to now

It is a small four wheel drive all-terrain vehicle.

It steers like a car.

The driver sits in the middle of 3 seats.
(but it has 5 or even more seats in the 6x6).
It has a full closed hull bottom and it floats.
In the water you only have the paddles on the tires to propel you.

Engine: many
Gearbox: many
4x4 with Positrac zelf locking differentials. Speed land: 70 km/h water 10km/h

The Terra-Jet was originally manufactured in Drummondville, Quebec, Canada beginning in 1969.
In July of 1994, Terra-Jet U.S.A. purchased the whole company to manufactur the Terra-Jet in Louisiana.

Terrajet 1980
Terrajet 1980
Terrajet 1981
Terrajet 1981

Terrajet models Terrajet drive train
Drive train
Terrajet 1981 engine
Terrajet 1981
Terrajet 1981

Terrapin MK I

Terrapin MK I

Terrapin MK I

Terrapin MK I

Terrapin MK I
Terrapin MK I (1942 1944)

It was a design by Thornycroft.
500 were build after June 1943 by Morris Commercial.

It has two 95 hp (64 Kw) Ford V-8 petrol engines.
Both engines have a 3 speed gearbox that drives a single speed transfer box and finally to a worm drive. Each engine is driving (only the centre two wheels on each side) OR (all four wheels on each side) This is not clear to me.
Each engine drives one propeller.

Steering the Terrapin works with two handles that operate a break on each side, a bit like steering a BobCat.
But this will give BIG problems if one engine fails. :-)
The two front wheels are placed much higher, the two rear wheels are placed a little higher, this will allow normal road travel with the skit steering. With 4 or 3 wheels on the ground there will be much wind-up in the transmission. The driver and the two engines are placed in the middle of the vehicle, In the front and in the rear there is a (to small) cargo space.

Engines: 2 x Ford V-8 petrol 95 hp
Speed land: 25 water: 8 km/h
Range: 240 km
Length: 7000 width: 2670 height: 2920
Weight: 7000 kg load 4000 kg
Tyre size: 13.00x24

They were used later in the Normandy landing??, in Holland and in the Rhine basis.
Fully loaded there was little free-board to be used in other than very calm waters.

Photo's taken at Zeeland Netherlands.
Bottom photo, taken in Domburg, Netherlands.

A surviving Terrapin was used by the Scotland Electricity board as a ferry around Edinburgh until 1970.
The hulk of another Terrapin (scrap) is rusting in Sussex.
One Terrapin is in Melbourne, Australia.
Terrapin II Prototype

Terrapin II Prototype

Terrapin II Prototype
Terrapin MK II (1944) prototype(s) only

With a length of 9500 mm it was 2500 mm longer than the Terrapin MK I
and it had one large cargo hold.
The driver position was well forward and under cover.
The hull shape was improved for sea worthiness and also the water manoeuvrability was improved.

Engines: 2 x liquid-cooled Ford 239 8-cylinder petrol 3917 cc 95 hp
Gearbox: 3 forward gears plus reverse,
Transfer-box: 2 rears
Transmission: 8 x 8
Central tire pressure system controlled from cabin

On hard ground the vehicle stood on the 4 middle wheels
The rear pair of wheels was slightly raised and the front pair raised even further

Speed land: 22 km/h Water: 8 km/h

Length:  9400 Width: 2670 Height: 2920 mm
Load: 5000 kg
Crew: 2 people
Water propulsion: 2 propellers 1 engine each

Loading was difficult because of the height of the hull.

When the war in the Pacific ended there was no more need for this type of vehicle.

Likely 6 prototypes were build ??
No surviving vehicles are known.

Terrapin usa road

terrapin usa water

terrapin usa land

terrapin usa suspension

terrapin usa tracks

Official US army photos
Terrapin USA (1961)

It was build by Wilson Nuttall Raimond Engineers of Chestertown Maryland.

Steering accomplished by a special hydraulic system
Two hydraulic cylinders for changing the horizontal position of the sections
One hydraulic cylinder for changing the vertical position of  the sections

Each caterpillar track had four independently spring-loaded road wheels with pneumatic tyres,
a drive sprocket and a tension wheel. Road wheels were installed on a balancing arm with
air/hydraulic suspension with 250 mm travel. The tracks are made from 2 rubber bands connected by cleats with a step of 164 mm, made from the aluminium heat-treated alloy.

Engine: International V-eight carburettor liquid-cooled 210 hp at 4000 r/min
Gearbox: 5 speed Spicer
Torque divider and Rockwell axles with a locking differential
Speed land: 50 km/h  water: 5 km/h
All four tracks where driven by the engine.
Crew 2
passengers 6
Size front: Length 5700 mm Width: 2400 mm Height: 3450 mm.
Weight (front part)  5870 kg load: 450 kg

Size rear Length: 6000 mm Width: 2400 mm
Weight: (rear part) 5440 kg load:  2720 kg

Fuel consumption  250 litre/100 km
Range on land 160 km

Passenger compartment is warmed by the cooling system of engine.
From this vehicle the Polecat II was developed.
Terratiger Terra Tiger

You can find more about this machine in the museum of ROUTE6x6.

Picture used with permission from ROUTE6x6.

Terra Wind Terra Wind

The Terra Wind web side says:
The world's first luxury Amphibious Motor coach / Yacht

But there where amphibious motor homes before.
For example in:
1960 the Dauphin, "Ann Phibi"
1968 the Sch\E4fer Orion 1
1974 the Bartett Waterlander
1989 the Aquarian

But he builds nicer and bigger Amphibs than I do. ;-)


Seating Capacity: 6
Length: 14000 width: 2500 Length: 14000
Interior height: 2310 mm Power Slides: 2
Speed land: 125 km/h water: 8 knots
Sleeping Capacity: 4
All Aluminium Plate Hull, Full Air Ride Suspension and a Diesel Generator to give power to the kitchen.


Side by Side Refrigerator, Washer/Dryer, Trash Compactor,
4 Burner Electric Cook-Top, Dishwasher, Microwave/Convection Oven.

Commend: (Rene Pohl) "I take one!"

But I only buy when vehicle becomes available with a included double garage for the little red sports car and I want a garden on second floor, so you get island feeling when on water.

Tetrarch Mk VII (A17)

Tetrarch Mk VII (A17)

Tetrarch Mk VII (A17)

Tetrarch Mk VII (A17)
Tetrarch Mk VII (A17) (1941)

It was a British light tank produced by Vickers-Armstrong in the late 1930s.

A 100 to 177 of the tanks were produced.
Some where used as a test-bed for the Duplex Drive system that was invented by Nicholas Straussler.

Problem with a swimming tank is the weight that needs big bouncy tanks to compensate. the bouncy tanks can be mounted in front and rear (Ka-Mi Japan), or left and right, but that makes the tank to big to handle.

Nicholas idea was to by erect a large waterproof canvas screen around the tank above it's tracks. This screen was supported by thirty-six inflatable tubes and steel struts.
The tanks hangs on the canvas screens, this gives the tank sufficient buoyancy not to sink further below the water line.

The tank was propelled by a propeller driven by the tank's engine.
On the photo it is likely an outboard driven by exhaust gas of the tank engine.
The screen could be collapsed fast by using a small explosive charge once the tank reached land.

The Tetrarch DD was successfully tested on lakes and reservoirs.

Other DD tank are:

The Valentines DD
The Sherman DD

Thiokol Thiokol 1301 Swamp Spryte - Amphibious Model. (1966)

It is water tight, swims at 4 1/2 mph, and travels up to 35 mph on land.
Engine: Ford 6 cylinder, 170 cu in 101 hp
Gearbox: Automatic 4 speed forward 1 reverse
Speed land: 55 water: 7.5 km/h
Length: 3950 width: 1950 height: 2000 mm
Fuel consumption. 4 to 8 miles per gallon
Climbing ability:
Dirt 60% Firm snow 60% Soft snow 45%

All drive parts and running gear are standard production items available through Thiokol Corporation or standard auto parts houses nationwide.

Thyssen Condor Thyssen Condor

The Thyssen Condor.

It is build on the chassis of the Unimog and uses Unimog components such as the engine, gearbox and axles etc.

Engine OM906LA / 6 cylinder diesel 228 hp
Speed 95 km/h fuel range 900 km
Length: 6130 width: 2470 height: 2180 mm
Crew: 2 + 12

Torsion bar suspension
Pictures send in by John Troost

Thyssen UR 416 S Thyssen UR 416 (1973)

The first Thyssen Prototype 416 S was developed in 1973. It was based on a UNIMOG-406 frame. The engine was a 5.7 litre Mercedes Benz 6-Cylinder Diesel OM 352 with 100 PS. It had a single propeller for water propulsion which gave it a speed of 6 km/h.

Many county's have used it.

Only one amphibious prototype was build.

Thyssen TM 125 Thysen TM 125 (1977)

The TM 125 was a development out of the UR 416 S in 1977. It also was based on Unimog Mercedes Benz, but had the stronger 125 PS engine. There were several TM 125 built, but only one prototype was amphibious. Again a single propeller pushed the vehicle in the water.

Thyssen TM 170 Thysen TM 170 (1980)

The Thyssen TM 170 was a bit bigger than the TM 125 and had a 170 hp engine. Only one of the TM 170 series had amphibious skills. Water propulsion came from two hydraulic powered props that were fixed behind the back wheels.

The pictures and the info of the Thyssen vehicles was send in by Ren\E9 Pohl the author of the book
"Mit dem Auto baden gehen" ISBN 3893657029. sold out

To-Ku Type 5 Amphibious Tank (1945)

To-Ku Type 5 Amphibious Tank (1945)
To-Ku Type 5 Amphibious Tank (1945)

Engine: water or air cooled 12 cylinder Mitsubishi diesel 240 hp ?
Length: 10 800 width: 3000 height: 3880 mm
Weight: 29 100 kg
Speed land: 32 water: 10 km/h
Crew: 5
Range: 320 km

The To-Ku was large and heavy; it boasted extensive
armour protection and a turret fitted with a 47 mm Type 1 gun and 25
mm Type 1 gun. Only one model was built of this tank

La Tortuga

La Tortuga

Tortuga V1 in the mountains

Frank inside Tortuga with typewriter
La Tortuga I (The Turtle I)  (1953)

1954-1956: The amphibious Jeep La Tortuga drove from Alaska to Tierra del Fuego a 20.000-mile trip.

Frank and Helen Schreider and dog Dinah were planing in 1950 to travel from the Arctic Circle in Alaska to Tierra del Fuego in South America.
There were three main obstacles 1- Southern Mexico, 2- Southern Costa Rica and 3- eastern Panama (the Darien Gap) which required shipping by rail or sea. Consequently the Schreiders chose to use an Amphibious Jeep (Seep) so that they could take to the ocean and sail around these problems.

In a way they travelled the Panamerican Highway even before it was built. :-)

The cabin of La Tortuga was made out of Oak and Plywood with a 500 mm extension over the rear. That way there was enough length behind the front seats to sleep in the rear.

The two racks on the outside hold 2 water and 6 gasoline jerry-cans.
Tyres where oversized 7.60 x 15 on specially build wheels. To save weight the heater was removed and the 12 V system was converted to 6 volt to save on 1 battery. Main storage was in the bow and beneath the bunks.
Above the bunks where two cabinets over the length of the cabin.

In the bottom photo you can see there is "plenty" room.

Books over La Tortuga I are:
La Tortuga an amphibious journey from Alaska to Tierra del Fuego.
20,000 Miles South A Pan-American adventure.
Both books have the same text but some different photo's and a different publisher.
La Tortuga II

La Tortuga II

La Tortuga II

La Tortuga II

La Tortuga II
La Tortuga II (The Turtle II)  (1960)

La Tortuga II

The Schreiders and there dog Dinah were exploring the Indonesian Islands.

They used La Tortuga II to travel from island to island.

Again the cabin was build from Oak and Plywood but without the overhang on the rear.

Bunks are length wise in the rear and extend over the front seats.
Some of the bunk parts double as a write/type desk.
Storage is in the bow, under the bunks and in the cabinets that are now compartmentalized.
Build in the dashboard there is a sink and alcohol stove and storage all covered with hatches.

The dashboard doubles as a map table.

There are two suicide doors, the roof between the doors opens to the rear in two parts.

A book over La Tortuga II is:
The Drums of Tonkin an adventure in Indonesia.

You can also find the trip through Indonesia with many unbelievable colour photos
In the National Geographic, Oct 1960, May 1961 and Aug 1962

The photo below is distorted so you can not print or use it in any other way
but still gives a good idea of the quality of the photos in NG at that time.

Tortuga in Indonesia as in NG

plan top view





Toyota home build bus (2011)

Engine: Toyota Land-cruiser 4200 cc Turbo diesel
Gearbox: 5 speed manual gearbox
transfer box: Hi-Lo range, modified to provide PTO for rear prop
(can drive prop in all 5 forward and reverse gear as well as with wheels turning or not turning).

Length: 8600 wide: 2350 height:, 2900  (will fit in a 40' high top container)
Weight: 3000 Kg as is, 4000 kg equipped 7500 Kg GVW (designed to be driven on a car license).

Large 4 blade bronze prop (picture shows earlier 3 blade)
prop  is motioned down into the water or up into the hull (via trailing wishbones) with an electric actuator. 
Prop vectors (rotates side to side) for steering in opposition to the front wheels (power assisted).

Special vents allow water to the rear prop when the hull is grounded
allowing propulsion in very shallow conditions.

Cooling air comes in the nose and out of side gills, additional water to water cooling when on water is automatically available.

Design for 8 beds with full motor home facilities and 6 forward seats in the front.
Forward control.
Upper deck with provision for second control set for top deck steerage on water,
(access via internal yacht ladder and sea hatch).  Rear swim deck.

Front lights from a Volvo V50,
Walls are aluminium, roof is a combination of GRP and aluminium deck plate.

Scratch built steel hull utilizing high tensile 2 mm steel, designed for full immersion hot dip galvanising
(measured to fit in Birmingham facility).
All welding is from the outside to prevent skin distortion.

Build in the UK, not finished. (2013)
(needs floor, interior, paint, front wind shield, windows and e.t.c.)
Current owner and condition is unknown.

Costed a small fortune to build. Still needs a small fortune to finish

You know you can make a SMALL fortune when building Amphibs.
BUT you have to start with a BIG fortune. ;-)
Toyota Roofliss

Toyota Roofliss

Toyota Roofliss

Toyota Roofliss

Toyota Roofliss
Toyota Roofliss (2009)

It is converted Toyota Town Ace
It WAS a 4wd van.
They used the front wheels to power it on land. Instead of taking the rear drive-shaft to the diff, they machined a new one that goes over the top of the diff to the prop.

Some reasons for failing the
or any other annual check up.

Apart from the box constructed around the engine and gearbox, to keep it dry.
The sides were sealed with galvanised sheet metal.
The doors were welded and glued up and the millions of bolt holes were welded or filled with sealant.

To keep the water out, the front differential is sealed through the box and the rear drive is sealed at the bearings.

It has crossed (Sept 2009) the Cook Strait (New Zealand)

Having set off under cover of darkness from the head of the South Island and fuelled them selves en route with pies heated on the exhaust system.
To arrive in to Wellington at 16:00

And in the bottom photo:

The best bilge pump in the world!

An anxious man with a bucket!!!

Tracker Tracker

You can find more about this machine in the museum of ROUTE6x6.

Picture used with permission from ROUTE6x6.

Trackster Trackster

You can find more about this machine in the museum of ROUTE6x6.

Picture used with permission from ROUTE6x6.

Trailboss Trailboss

You can find more about this machine in the museum of ROUTE6x6.

Picture used with permission from ROUTE6x6.

Trailmaster Trail Master

Made by CDN. It has full hydrostatic drive system no gears, chains, or transfer cases. The tandem hydraulic pumps can be powered by gasoline, natural gas, propane or diesel engines.
The hydraulic pumps turn individual hydraulic torque motors. It is controlled by a single lever joystick, the vehicle can rotate within its own length. It has a welded aluminium body.

An option is a hydrostatic two-speed to optimize speed or torque.

Atlantauto Trecol

Atlantauto Trecol

Atlantauto Trecol

Atlantauto Trecol
TRECOL (TRansport + ECOLogy)

They were build by Atlantauto

They build many different 4x4 4x6 and 6x6 cargo / passenger vehicles that can float on the water by there big tyres

There floaters, no water propulsion.

There is a Cab version 2 doors and 1 roof hatch and a saloon version that one has a rear door.
Even a raised roof so there is standing hight inside

Engine: Venyukovsky Fittings 2123 or Peugeot DW (1,9 l, 70 hp)
Gearbox: 4 or 5-gears
Length: 5530 width: 2610 height: 2940
Speed land: 80 water: 4 km/h
With an outboard motor: 8-10 km/h

The low pressure tyres give a load on the ground of (0,1-0,4) kg/cm2 depending on tyre pressure

The fibreglass body is strong enough to withstand temperatures ranging from minus 60 to plus 60 degrees Celsius.

If you want to send E-Mail to the web master (Amphi)Hans Rosloot