Dinki: Too bad they didn't have a pneumatic wrench to tighten those bolts down. Guess the government shutdown precluded that.
Screw up the props and you pretty much screw up the whole ship as the French found out when they put bad props on the Charles De Gaulle (AKA Ship of the Damned).French Aircraft Carrier Charles de Gaulle"During the night of 9 November 2000, in the Western Atlantic while en route toward Norfolk, Virginia, the port propeller broke and the ship had to return to Toulon to replace the faulty unit. The investigations that followed showed similar structural faults in the other propeller and in the spare propellers: bubbles in the one-piece copper-aluminium alloy propellers near the center. The fault was blamed on the supplier, Atlantic Industries, which had already gone bankrupt. To make matters worse, all documents relating to the design and fabrication of the propellers had been lost in a fire. As a temporary solution, the less advanced spare propellers of Clemenceau and Foch were used, limiting the maximum speed to 24 knots (44 km/h) instead of the contractual 27 knots (50 km/h).On 5 March 2001, Charles de Gaulle went back to sea with two older propellers and sailed 25.2 knots (47 km/h) on her trials. Between July and October, Charles de Gaulle had to be refitted once more due to abnormal noises, as loud as 100 dB, near the starboard propeller, which had rendered the aft part of the ship uninhabitable."
UberDave: "...bringing more than three years of structural erection work to a close..."What a relief.
blatz514: UberDave: "...bringing more than three years of structural erection work to a close..."What a relief.Aren't you supposed to see a doctor after 6 hours or something?
DarkSoulNoHope: blatz514: UberDave: "...bringing more than three years of structural erection work to a close..."What a relief.Aren't you supposed to see a doctor after 6 hours or something?Preferably a female doctor.
Bslim: YAY outdated military doctrine!
cig-mkr: I thought prop designs were classified ?
mediablitz: Am I the only one who thinks those look kinda small? The screw on my fast attack boat was about that size.
Nana's Vibrator: I'd be rich if I could steal those propellers and sell them to the scrap yard. Shoot, I could steal that whole carrier! Who's gonna stop me?
hasty ambush: Waste of money. While old ships may need replacement and our Navy could use an additional 50 or more ships the Ford class is an expensive-uneeded upgrade to the Nimitz Class. No other country is now building or likely to build in the next 20 years any carrier as capable as the Nimitz class. We would probably be better served by building more of a smaller carrier design of about 65,000 to 70,000 tons. And instead of the America class (which does not even have a well deck)just more of the cheaper Wasp Class LHDs.
Headso: heh! how much does 120 tons of bronze even cost?
stratagos: Good to know that mandatory spending covers ship construction but not the DC police
jaytkay: mediablitz: Am I the only one who thinks those look kinda small? The screw on my fast attack boat was about that size.Yes, I thought so, too. Here's a big one.[www.langhamindustries.co.uk image 500x505]Stone Marine Propulsion has been designing and supplying marine propellerssince the screw propeller was first developed in the 19th Century...the companyhas facilities to design and supply propellers with finished weights in excess of 100 tonnes
Eps05: Is there a specific reason why they're made of bronze? Less likely to rust? Stress and warping resistance? Something else?
grinding_journalist: I'm kinda surprised that in the couple hundred years that screw-type propulsion has been used on ships, there hasn't been a more advanced system (less power loss to water resistance/quieter/lighter/etc) designed. I know engineers prefer simplicity, but do things like ramjets not work under water?
mediablitz: cig-mkr: I thought prop designs were classified ?Not on skimmers torpedo receptacles.
VoodooTaco: mediablitz: cig-mkr: I thought prop designs were classified ?Not on skimmers torpedo receptacles.FTFY.
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