The surface drive propulsion system (also known as semi-submerged propeller) independently developed by Tofoo Electronics Engineering Co., Ltd. for TSD type high-speed boats has been tested in Changsha, China, with a maximum measured speed of 78.9 km/h, which has been successfully used in high-speed boats. This technology has obtained a number of utility model patents and invention patents. The success of this test voyage fully demonstrated the maturity of the key technology and core technology of the high-speed surface propeller device, marking that the surface propeller device and surface propeller technology for domestic TSD high-speed boats have gradually matured, and the application direction of the product will be more mature. It is safe, efficient and cost-effective.
| Product Name | BH500 |
| Adaptable Blade Diameter | 450/500mm |
| Adapted Power | 100-200Ps |
| Input Torque N.m | 800N.m |
| Single Machine Weight (Kg) | 70Kg |
| Maximum Suitable Ship Weight for Single | 2T |
| Maximum Suitable Ship Weight for Dual | 4T |
| Standard Accessories | Cardan Shaft, Hydraulic Lifting Station, Oil Pot(alarm) |
| Number of Blade | 4//5/6 |
| Minimum Intput Speed of Main Engine R/Min | 1000 |
| Maximum Intput Speed of Host R/Min | 2500 |
