"2nd Zumwalt Destroyer Needs New Engine" Topic
5 Posts
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 Editor in Chief Bill  | 14 Jul 2018 8:48 p.m. PST |
Zumwalt-class destroyer Michael Monsoor (DDG-1001) will need to have a main turbine engine replaced before the ship can sail to San Diego for its combat system activation, after suffering damage to the turbine blades during acceptance trials, the Program Executive Officer for Ships told USNI News… link |
| vicmagpa1 | 14 Jul 2018 11:11 p.m. PST |
talk about teething troubles. |
| emckinney | 14 Jul 2018 11:32 p.m. PST |
Interesting bexa the MT30 turbine is fairly widely used, although new. Could be FOD. I'm thinking material not cleaned up after construction, but that's a SWAG. |
| belasirius | 15 Jul 2018 2:32 p.m. PST |
Or it could be someone didn't want to get under weigh and tossed something into the blades. |
| Lion in the Stars | 16 Jul 2018 6:41 p.m. PST |
Trust me, you will know IMMEDIATELY if a turbine engine inhales something as small as a 3/8" (9.5mm) bolt. Heard it happen back in ~1998 about a mile away and through closed hangar doors! (Some moron had left a loose bolt in the S-duct of a 727, right after we'd just replaced all 3 engines with hush-modded ones… Man, bosses were *pissed* and ready to murder people!)
They claim that the damage wasn't noticed on any of the regular *OR* the sea trials instruments, which strikes me as really weird. I mean, you get overtemp/underpressure alarms, nasty noise and vibrations due to out-of-balance turbines at unholy RPM, so this doesn't make any sense to me.
Plus this damage was found during a post-run visual inspection, so I'm wondering if something didn't shake loose in the intake as they were shutting the engine down… |
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