| Are you wondering if an outboard boat plan is the | | | | VENTILATION |
| right choice for you? Here in this article, we will go | | | | This phenomenon occurs when exhaust gas is drawn |
| over the things to keep in mind with this kind of | | | | into the spinning blades which would cause to no |
| boat. | | | | generation of the thrust. The factors that has to be |
| An outboard boat has a propulsion system wherein | | | | looked into with this phenomenon are: motor |
| there's an engine, gearbox and jet drive, all of which | | | | mounted too high or it could be that the motor is |
| are designed to be mounted outside of the transom. | | | | trimmed out excessively. Also, you may have to |
| Outboard system are also responsible for providing | | | | check if there's a damage to the anti-ventilation plate |
| steering control thus controlling the direction of the | | | | or propeller. Or it is also possible that foreign matter |
| thrust. | | | | are lodged in the diffusing ring. |
| There are some issues which needs to be considered | | | | CAVITATION |
| in building a boat using an outboard boat plans. Some | | | | In relation to outboard motors, cavitation often |
| of these are: | | | | results when a foreign object like seaweeds are |
| TRIM | | | | lodged on the lower unit causing interruption of water |
| This refers to the angle of the motor to the hull. The | | | | flow into the propeller blades. |
| ideal angle should be one in which the hull is on the | | | | These are some of the things you have to keep in |
| surface instead of plowing through the waters. | | | | mind when building an outboard boat. |
| Optimal trim will depend largely on factors such as | | | | Also, I would like to point out that outboard boat are |
| speed, weight , balance and hull design. Of course | | | | better than inboard boats in a sense that you can |
| you will also need to consider the water condition in | | | | easily remove its power source for maintenance. |
| designing the trim. | | | | If you are keen on building a boat with an outboard |
| MOTOR MOUNTING HEIGHT | | | | boat plans, you may want to take a look at this |
| To achieve optimum performance, the motor on the | | | | catalog of boat plans which I find very helpful. It will |
| transom is an important consideration. The design | | | | also give you an idea what goes into building a good |
| should allow for a motor to be as high as possible | | | | inboard or outboard boat and all the consideration |
| without loss of water pressure. This will result in | | | | discussed here are also incorporated in the boat plan. |
| greater speed while minimizing hydrodynamic drag. | | | | |