Yep, the Orion crews used to call our Sea Kings "Winnebagos", but I didn't take offense since they were right - I got a few rides in P-3s and it's like comparing a Volkswagen Beetle to a Rolls Royce limo. Smooth ride, no vibration, lots of room inside. The standard joke was that a helicopter was 1000 mismatched parts flying in close formation around an oil leak while waiting for metal fatigue to set in.
But then again, a P-3 can't hover or land on a ship.
Forgot some other tests, working on those when I'm not tearing my hair out trying to figure out the texture mapping on these blasted subs. All Stop, Ahead 1/3rd, Ahead 2/3rds, Ahead Standard all have the same recharge rate, about 6 hours. Ahead Full takes 11 hours, Ahead Flank 22 hours. Discharge is keyed to speed rather than power, running at Ahead Flank, diving, then going to All Stop the battery continues to drain while the sub is coasting. 9 knots submerged you get 10 miles in a little over an hour before the battery drops to 10%, and the speed is down to 4 knots.