Gym grade
Gymnote is the French name for a family of the New World knife fish . The "electric fish" were the namesake of two test submarines of the French Navy :
- Gymnote (Q 1) : was one of the first electrically powered submarines in the world , alongside the Spanish Isaac Peral . It was launched in 1888 and struck off the register in 1908.
- Gymnote (S 655) : was a diesel-electric powered experimental submarine armed with nuclear missiles that was used between 1966 and 1986.