An Original Land/WaterCraft Designed by Richard Trojan
It's a Water Craft |
![]() |
It's a Land Craft |
Technical Product Description
Construction started in 1999
| Length - 22' Hull
Width - 8' 6" Height - with wheels down 9' Keel height with wheels down - 12" Wheel length center to center - 16' Weight - approx. 7000 lbs. Hull Material - Aluminum Pay Load - 1 ton on land, 2 tons in water |
Engine and Outdrive - Mercruiser 350 Chevy
& Alpha-1 out drive
Main Hydraulic pumps - Mannesmann, Rexroth, Variable Displacement Series 31, AAIOVSO Auxiliary Hydraulic pump - AA10VS028 - Pressure Compensated Pump Wheel motor - White fixed displacement Tires 31" diameter Steering (boat) Passive hydraulic helm controls Steering (car) front wheels via tie rods and Chevy Steering Box |
A standard boat inboard-outboard unit is used with a short driveline hooked to the front of the engine driving the pump assembly. The pump assembly consists of two main pumps and one auxiliary pump. The main pumps operate the forward and rear wheels. Forward and reverse are part of the main pump function. The auxiliary pump runs wheel retraction and deck functions.Basic Working Description
|
Belly |
|
|
Vessel is powered by one engine, which provides power for both boat and wheel propulsion. Engine and outdrive unit operate as a boat would (i.e. dash mounted throttle and forward/reverse controls).
|
|
|
(bow to left, stern to right) |
To operate as a car requires the throttle on the dash being raised some. The gear shifter on the steering column is pulled from neutral to reverse or forward as desired. Breaking is via hydraulics.
To operate as a boat requires simply putting
in the plug after which vessel is ready to launch. Once wheels are
brought to their top position, vessel can be brought to cruising speed
of approximately 30 knots. I wish!
Front Left Wheel Hydraulics Note: wheels are down |
Close Up Front Left Wheel |
Note: Wheels are up |
When ready to go ashore, wheels are lowered,
outdrive is raised slightly and vessel is driven ashore. Once safely
ashore engine is idled down and outdrive is placed in a neutral prior to
extended road travel.
Back Wheels, Hydraulics, Outdrive |
Side View |
For extended time on shore and for storage
pull plug and rig tarps. Vessel requires stands for extended storage
as the vessel is held up by Hydraulics.
Water Craft |
Richard Trojan and "Sally" |
Land Craft |
You can contact me at
info@trojanandson.com
or
907-826-3734.