You would need to know how fast it is going to determine the force that the 50 hp motor is pushing the boat. Energy = Force X Distance. Divide both sides by time: Energy/time = Force X Distance/Time = Force X Speed, and Energy/Time = Power, so Power = Force X Speed, and Force would equal Power/Speed.
30lbs
Time = Distance/Average speed = 115/100 = 1.15 hours or 1 hour and 9 minutes.
The Type 1 displaced 862 tons while surfaced and while submerged it was 982 tons .
133 ft
100 feet
30lbs
40 pounds
A brushless motor has many jobs to do. It works in many different ways. In most or all cases, it helps run the boat. The motor is what keeps the boat going. http://en.wikipedia.org/wiki/Brushless_DC_electric_motor
A brushless motor has many jobs to do. It works in many different ways. In most or all cases, it helps run the boat. The motor is what keeps the boat going. http://en.wikipedia.org/wiki/Brushless_DC_electric_motor
Depends on what kind of boat: row,sail,motor....
There are to many variables that go into that question . Boat weight , motor size , prop pitch and diameter , form of the boats hull ( flat or a v hull ).
250 to 300 horsepower
Videos of fast motor boats can be found on boating websites along with video sharing websites. YouTube allows anyone to post their videos for free, and they have many videos of the fastest motor boat.
I'm doing research on this as I write this. I'm contemplating the purchase of either a 17' or 19' Carolina Skiff. This is a fiberglass boat so it weighs a lot more than one made out of aluminum. Anyway, the important thing is how much weight are you normally going to be "pushing" around? You need to size your motor so that, when you have your maximum anticipated load on (disregard manufacturer's statements as to how many people the boat will haul), you can get the boat up on plane. The proper operation of an outboard motor depends on its' prop rotating at a certain RPM which is usually attained when the boat gets up on plane. Think of how your legs work when you are riding a bike. If you were to attempt to haul people on the back of it and do hills while in high gear, your legs would soon wear out. This is what will happen to your motor as well. If you want to stay with a smaller motor because of economy, you might want to consider going to a lower pitch prop as the motor won't have to work as hard. I've looked at many different boats and it seems as though the best way to find out is to go to a reputable dealer, explain what the boat is (aluminum, fiberglas, V hull or Jon boat) and let him recommend the engine. All boats must show a "Maximum HP" rating also. This is a "not to exceed" figure. If you have that number and are not going to load the boat down with 1000 pounds of gear and people my bet is that you would be fine with a 50HP engine.
Depends on the size of the rescue boat and the boat crew requirements. US Coast Guard 47' foot motor lifeboats usually have a crew of 4.
The amperage drawn by a trolling motor will depend on the specific model and its power rating. To calculate the amperage per hour, you would need to know the wattage of the motor. You can use the formula: Amps = Watts / Volts.
I dont know about the '89 but i have read that the 1990 has about 50hp.