[Homer_J_Simpson]

Submarine USS Grayling launched.

Wasn't Grayling to be the standard design for attack submarines in the USN for the next few years?

[CougarGA7]

The Grayling was a Gar Class submarine. The Gar Class was pretty much indestinquishable from the Tambor class (remember the Tautog commissioned last July). These were the workhorses for the U.S. submarine fleet and were the standard until the introduction of the Gato Class in 1942.

Here's a picture of the Grayling on launch day.