Most races that are held in the spring and summer feature side by side racing, or sprint racing, sometimes called a regatta; all the boats start at the same time from a stationary position and the winner is the boat that crosses the finish line first. The number of boats in a race typically varies between two (which is sometimes referred to as a dual race) to eight, but any number of boats can start together if the course is wide enough.
Motion of the water is different than the motion of the wave. Water at each location moves in a circular path, but the motions at different locations are “out of phase”, which means that when water at the left of the diagram is moving to the right, water a quarter of a wavelength to the right is moving down, and water next to it is moving to the left, and next to it is moving up, etc. The overall effect is a an “apparent” wave moving to the right. Thus, the velocity (speed) of a wave is not at all the same as the velocity of the water.
The overall rowing experience encompasses pulley, seat, and — of course — resistance. Air and water have very distinct qualities, making them impossible to compare but interesting to contrast. Air stores inertia, which feeds into intense, constant effort during a goal-oriented workout. Water’s more sluggish drag makes for demanding exercise, but one that’s less consistent.
It is time to get into shape. After doing some research and talking to a few experts, at least more expert than me, I determined rowing and swimming would be the best for me to loose weight with less strain on my body. I researched and decided to rent (not buy) a Water Rower. The one page rental application is simple to complete and the staff telephone contacts were great, they answered questions, provided updates, made suggestions etc. The equipment showed up as promised. Assembly is very simple one person job and took just about a half hour, only one small allen wrench is required and it is provided. (save the box, its big but needs to be saved in the event you return the equipment) The machine is classic and elegant. It is not silent but the water swoosh sound is quite relaxing and soft. I rented a previously used matching which is slightly less expensive and shows a tiny bit of use but its exercise equipment so it is expected. Customer service is outstanding and friendly. The equipment seems really well designed and is simple to stand up and get out of the way. The only issue I had involved the the filling of the tank. Its cumbersome and could be made easier by a more convenient placement of the fill hole, it seems to be a slight design flaw. I used a new long funnel (used to add oil to a car). I checked out a few Youtube posts and videos and other users had the same minor complaint but overall everyone is really happy with this equipment. NOW I NEED to MAKE MYSELF USE IT.
The rowing machine itself is unlike any other on the market with its patented water filled flywheel. It is hard to exactly copy the action of a scull on the water, but the mechanics of the flywheel spinning in water comes in a close second on dry land. The fact that the water is 800 times denser than air means that there is no need for any extra resistance or dampening that you will find in normal air rowers. The faster you pull, the more resistance is generated giving it infinite variability. However, if you want to be able to practice rowing with a faster stroke, you will have to reduce the amount of water in the tank unlike an air rower where you just have to adjust the baffle.