One propeller won't work.

Read First Before Buy Racing Electric Powered Control Cruiser

I did a bit of research before finally settling for this boat. I was looking for an inexpensive, reliable, and most importantly, fun r/c boat.

Let's quickly break down the pros and then do a quick rundown of the cons and possible solutions to shortcomings:

Pros:
1.) Fast.
2.) Easy to operate.
3.) Durable.
4.) Inexpensive.

Cons:
1.) Build quality could be better. It's clear the body is cast from two halves. It arrives with a red tape covering the "seam" where the two halves meet. I removed this and used some standard electrical tape to properly cover and seal the "seam". It has held up after heavy use and actually gives the boat a nice look.
2.) Battery. The factory battery is absolute crap. You won't get more than 10 minutes out of it. Fortunately, it uses the very popular Tamiya connector, so if you have other R/C toys, you might already have a higher capacity battery laying around. If not, a battery that will give you about 40-45 minutes of run time (with no overheating) will probably cost you an additional $20. Just search for a 3000 or 38000 mah, Tamiya type battery. It's WELL worth it.
3.) On board engines always allow a bit of water into the hull, so i place a paper towel under the rotor shafts to absorb any water that might get in.

Overall, you can't really ask for any more from a $40 R/C boat. People are marveled at it when they see it, and the few things you have to do to make sure it lasts are painless and well worth it. I've used it in both open water and lakes, and the damn thing is awesome to use and watch. My 4 year old son loves it and drives it without a problem.

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