The engine warranty period is 12 months. During the warranty period, except for man-made damage, we will solve any product problems and provide technical assistance.

The engine brands we currently provide are Yuchai and Hangrui.

Yuchai is a brand with the largest export engine in China. It also has distribution stores in many countries around the world. There are many choices and the quality is worthy of assurance.

The Hangrui engine is produced by a domestic manufacturer specializing in the production of aerospace UAVs. It is light in weight, high in reliability, sufficient in power, and economical and reliable.

If the customer has an engine they want to use, just provide us with the engine information, and we will determine whether it is suitable.

We will provide the hull perforation diagram and installation instruction manual.

And with an installation video, our engineers provide remote technical support.

The hull is a planing hull type
The surface driver is mainly suitable for inboard diesel engines and gasoline engines, other types of engines need to be further judged

In order to increase the speed, the engine power/weight must be greater than 40 horsepower/ton compared to conventional propellers

 

The surface propulsion device is suitable for most hulls such as most planing boats and semi-planing boats, but it still needs to be specifically decided whether it is applicable according to the hull design, weight, speed and several other factors.

 

1.There are no appendages under the hull.Having no appendages reduces the drag on a vessel，therefore making higher speeds possible with less horse power required. Less horse power equals less fuel consumed

2.The propeller can be placed on the surface of the water to produce a shallower draft on the ship, which makes the surface drive perfect for shallow water applications

3.For ships of the same size, the surface-driven propeller is larger than the conventional propeller.This is beneficial when undertaking close quarter handling in that the propeller at that stage is completely submerged and the operator has the advantage of greater thrust forward and aft

 

What are surface drives, and how do surface drives work?The surface drive are working near the water surface,with the blade part time in the water and the other part time spining in the air.The propulsion device located above the water surface, in addition to the drive shaft system containing the propeller, also has a mechanism for adjusting the pitch and heel angle of the shaft system.Adjust the propeller shaft to match the sailing state by adjusting the propeller shaft immersion depth.By adjusting the heel angle to achieve the effect of vector thrust, it can control the course of the boat more powerfully than the rudder propeller.Having the propeller at the surface level reduces drag and reduces the vessels draft, making the surface drive suitable for many applications where the owner is looking to reduce fuel costs, increase speed and create a more efficient vessel.
 

It has the characteristics of no cavitation and denudation, low resistance, shallow draft and high efficiency when sailing at high speeds. It is the preferred propulsion method for new high-speed ships in the world today.

The TSD series surface drive propeller is a high-tech Chinese-made propulsion device designed and launched by TF for high-performance boat propellers. The device adjusts the immersion depth of the propeller through a hydraulic cylinder to make it run near the water surface, which has lower resistance and higher efficiency than conventional propeller attachments. The professional scheme design makes the boat equipped with the device better match the propeller performance, and the efficient vector propulsion makes the boat more stable, faster and more flexible in actual control.

 

TSD series surface drive propulsion device, TF company has completely independent intellectual property rights, can carry out ccs product certification according to customer requirements, and provide full-cycle technical services from boat design to use and maintenance. This series of devices is suitable for steel, aluminum, composite materials and other hulls ranging from 7 meters to 35 meters, and has been successfully applied to various military ships, official ships, tourist ships and hydrographic ships.