You can read the NTSB report on that failure. I had nothing to do with harmonics. There were undersized gussets and there was excess...
My first thought is metal fatigue. A welded part would be fine if done properly.
These boats are not high performance, so the rigs are not too stressed. If you look at a production boat of similar dimensions, the change will...
He may cause the dismasting by damagind the strands. If gentle twisting (whatever that translates into a torque value) is enough to "pop loose"...
I am a bridge inspector and can simpatize with you.
The water has a higher oxygen content near the surface. Also, the wet/dry and cold/hot cycles are more pronounced near the waterline. All that...
That is a ridiculous test. He is damaging the rigging.
Tugs could provide some extra safety. However, the extra cost and wait time may make shipping companies choose to change ports. These decisions...
I am surprised the inspection was so out of date. The federal mandate is a maximum of 5 years for underwater inspections. That can be shortened...
The bridge was obsolete for the current marine traffic. The protection needs to be adequate to protect the structure from the impact of the...
If you run the engines at full power in those conditions, the propellers will cavitate and probably ventilate too. This will cause vibration....
That sales pitch is total nonsense. Repeating something time and time again does not change the laws of physics.
Saying that an electrical kW is more powerful than an ICE kW is like saying that 1 meter of Dynema rope is longer than 1 meter of manila rope.
The proper calculation would be: 1 HP of rated power output = 1 HP for internal combustion engine electrical power is input η*Pe = Pm. The...
1 KW is 1 KW whether electric, internal combustion engine, or a team of horses.