Ahhh...some confusion here. The tail indexer is not the gust lock. It is a cam that lodges into the crown assembly on the tail rotor, moving it to the proper position and keeping it from spinning when the pylon is folded. The gust lock on the Seahawk is a geared motor that engages the teeth on the rotor brake disc and indexes the main rotor for folding. On the Blackhawk, it is a lever type pin that engages the teeth on the rotor brake disc to keep the blades from spinning freely while unattended. It can also be used to hold the rotors from turning while operating a single engine at idle for maintenance (idle leak checks). On rotor brake equiped Blackhawks, the gust lock is only there for engine off operations (ie while it is tied down and/or unattended). The bend in the lever pin to incorporate the rotor brake on the output shaft makes the design too weak to hold against an engine at idle and a warning was added to our -10 manual (Army version of the NATOPS).
When did they take the float bags off the Seahawk? The SH-60B had them. I remember some boy scouts popping the floats at NAS Jax prior to an airshow out there when they were let onto the flight line before the crew had disconnected the battery. Sadly, they were designed to be used with helium and would open in just a few seconds; not much slower than a car's airbags. Since ship could only provide nitrogen servicing, that was used instead. Nitrogen, being a much larger element, took about 60 seconds to fully inflate the bags. BTW, if you haven't seen the video demonstration of that, the helo-on-a-stick out in front of NS Mayport was the airframe used for that demo.
