tag:blogger.com,1999:blog-4245848993516434751.post7174619167426362760..comments2023-04-01T10:38:24.993+01:00Comments on Grand Logistics: Some Statistics On Royal Air Force Operations In LibyaUnknownnoreply@blogger.comBlogger4125tag:blogger.com,1999:blog-4245848993516434751.post-36792480313810673122012-04-19T03:09:34.495+01:002012-04-19T03:09:34.495+01:00Hello Topman,
there were when this post was writt...Hello Topman,<br /><br />there were when this post was written.<br /><br />The first deployment to Italy was 10 Typhoons,followed by 2 batches of 4 Tornados for a total of 18 aircraft.<br />After that Typhoons began to return home while Tornados replaced them.<br />Eventually another 4 Tornados brought the number to 22 aircraft in total.<br /><br /> GrandLogistics.GrandLogisticshttps://www.blogger.com/profile/05216594701400296075noreply@blogger.comtag:blogger.com,1999:blog-4245848993516434751.post-82575116601450024302011-07-09T12:15:43.460+01:002011-07-09T12:15:43.460+01:00Are you sure there are 12 GR4 in Italy?Are you sure there are 12 GR4 in Italy?Topmannoreply@blogger.comtag:blogger.com,1999:blog-4245848993516434751.post-137104262000643652011-07-05T06:01:20.775+01:002011-07-05T06:01:20.775+01:00Hello TheRaging Tory,
it depends,are we talking g...Hello TheRaging Tory,<br /><br />it depends,are we talking generally or specifically about a particular ship?<br /><br />If we are talking about the Queen Elizabeths,they have growth margin up to (I think) 75,000 tonnes so adding 6,000 tonnes of ordnance would not be a problem if you had the space for it in a location where weight distribution problems would not occur (e.g. metacentric height issues).<br /><br />In general,ships are affected by weight as well.<br />Imagine a hypothetical ship with a length of 280 metres,a beam of 40 metres,a displacement of 60,000 tonnes,an horizontal cross section of 6000 square metres area at the waterline and (to keep the maths simple) uniform cross section below that.<br /><br />To float that vessel has to displace 60,000 cubic metres of fresh water (a little less of more dense sea water).<br /><br />Add 6,000 tonnes of ordnance and it needs to displace another 6,000 cubic metres,increasing it's draught by 10%,which means it has to push 10% more water out of the way when it moves.<br />At about 20 knots it would be pushing about 4,400 tonnes of water out of the way each second.<br />That slows the ship down a lot.<br /><br />Increased draught also reduces the number of ports it can enter and the depth of water it can sail through.<br />There are also limits to the ship's structural strength and the hull's freeboard (how high the top of the hull is above water) loading up the ship reduces freeboard which can lead to waves washing over the deck.<br />The weight of that water might exceed the structural strength of things like hold covers leading to flooding which sinks the ship.<br />Which is why ships have a "Plimsoll line" painted on their hulls.<br /><br />There is a lot more to it than that but ships are weight limited just like aircraft,the big difference is just the numbers.<br /><br />The biggest ships can sail with about 2,000 times more payload than the biggest aircraft can fly with.<br /><br />In terms of volume ships have an advantage,you can add as much as you like as long as it doesn't exceed weight limiting factors - see some of the car transporting ships for example.<br />Adding volume to a plane is a big issue as it means a lower payload fraction and more air to be pushed out of the way when flying,aircraft are more critical in both respects.<br /><br /><br /> GrandLogistics.GrandLogisticshttps://www.blogger.com/profile/05216594701400296075noreply@blogger.comtag:blogger.com,1999:blog-4245848993516434751.post-81085850365327611902011-06-30T10:40:32.831+01:002011-06-30T10:40:32.831+01:00Surely from a storage point of view, even on a shi...Surely from a storage point of view, even on a ship, volume matters far more than weight?<br /><br />Would 6,000tons of ordnance on a CVA compromise speed or handlking?<br /><br />Weight only really matters on aircraft, because they cant take off if overloaded.TrThttps://www.blogger.com/profile/07316335177828136131noreply@blogger.com