Adrian Barrell Posted December 19, 2008 Share Posted December 19, 2008 In Sherman, the 9 cyl. does have a flywheel whereas in Hellcat, the engine in the trailer being for a Hellcat, it does not. There is quite a rotating mass in a radial though and they seem to run fine without a flywheel/club. Quote Link to comment Share on other sites More sharing options...
longydagun Posted December 19, 2008 Share Posted December 19, 2008 the only thing that happens with the radial in the hellcat is it gets soo hot it vapourises the petrol an obviously and engine with no petrol don't go far. but it is an awesome engine ticks over at somthing like 10,000 rpm Quote Link to comment Share on other sites More sharing options...
Adrian Barrell Posted December 19, 2008 Share Posted December 19, 2008 the only thing that happens with the radial in the hellcat is it gets soo hot it vapourises the petrol an obviously and engine with no petrol don't go far.but it is an awesome engine ticks over at somthing like 10,000 rpm It's an air cooled engine so the engine bay gets very hot. With modern petrol, it can be a problem. It will tick over at 500 rpm but that fries the master rod bearing so minimum rpm should be 750 or 1100 for long periods. It wont go as fast as 10,000 rpm I'm afraid! Quote Link to comment Share on other sites More sharing options...
antarmike Posted December 19, 2008 Share Posted December 19, 2008 i've always had a soft spot for the Lister D Beautiful..... Quote Link to comment Share on other sites More sharing options...
chevpol Posted December 19, 2008 Share Posted December 19, 2008 Beautiful..... Indeed, when my dad started displaying stationary(or barn)engines in 1975, that was the first one he owned. Mark Quote Link to comment Share on other sites More sharing options...
N.O.S. Posted December 19, 2008 Share Posted December 19, 2008 Beautiful..... Yet another engine that can be right or left rotation :cool2: Quote Link to comment Share on other sites More sharing options...
Chrisg Posted December 19, 2008 Share Posted December 19, 2008 RR merlin V16 BRM anything running nitro anything running castol R Quote Link to comment Share on other sites More sharing options...
Lauren Child Posted December 19, 2008 Share Posted December 19, 2008 (edited) Have some engine pics from the Zagreb technical museum. The small one is a Wankel engine. The white one is a 2 stroke opposed cylinder Deltic. Th last one is a Cantieri Navali Riuniti engine. These aren'y military, but the piqued my engineering interest. Edited December 19, 2008 by Lauren Child typo Quote Link to comment Share on other sites More sharing options...
antarmike Posted December 19, 2008 Share Posted December 19, 2008 I was only joking about the Lister D, really didn't expect anyone to take it seriously..... Quote Link to comment Share on other sites More sharing options...
Guest catweazle (Banned Member) Posted December 19, 2008 Share Posted December 19, 2008 Good idea Bernard , Heres a couple we nearly bought a few years ago. £10.000 the lot. Have a video of the inspection we did on this boat ,will sort some out for HMVFtv. Quote Link to comment Share on other sites More sharing options...
Guest catweazle (Banned Member) Posted December 19, 2008 Share Posted December 19, 2008 I was only joking about the Lister D, really didn't expect anyone to take it seriously..... We came across them in Africa being used as emergency generators at diplomatic residences,we sometimes camped in the grounds,believe me the novalty soon wears off.:??? Quote Link to comment Share on other sites More sharing options...
Richard Farrant Posted December 19, 2008 Share Posted December 19, 2008 After a technical problem with a link, I will try again Not neccesarily the most impressive engines, but the sound of a Detroit is when under load. Two of my favourites on Youtube, GMC Brigadiers, powered by DD...........turn the sound up :-D http://uk.youtube.com/watch?v=dVjXwS8HzFw http://uk.youtube.com/watch?v=klRq8D97S8c&feature=related Quote Link to comment Share on other sites More sharing options...
Guest catweazle (Banned Member) Posted December 19, 2008 Share Posted December 19, 2008 Sounds like the Gamma Goat,the Foden ,and TS3.Not surprising as there all two strokes.I rebuilt a foden ,turbo and supercharged,reved kike a kawasaki.used in some naval craft,some landing craft had them dont know what model. Quote Link to comment Share on other sites More sharing options...
Jack Posted December 19, 2008 Share Posted December 19, 2008 Jack I recalled that even before the clip started , amazing how you fit that under the hood ! Well all you guys aren't the only skilled ones........I will get my coat. Quote Link to comment Share on other sites More sharing options...
Jack Posted December 19, 2008 Share Posted December 19, 2008 One not mentioned so far has to be a steam engine under load, something about that. Quote Link to comment Share on other sites More sharing options...
Degsy Posted December 20, 2008 Share Posted December 20, 2008 One of the best engines ever built to suit a particular purpose was the AEC 7.7 used in the Matador. It was designed to have an even torque band right across the rev range to suit the constant stop start usage in London buses. A local crane operator has a Mat (ex Southdown) still working for its keep and still running on it's original engine after 67 years! Quote Link to comment Share on other sites More sharing options...
gritineye Posted December 20, 2008 Author Share Posted December 20, 2008 One not mentioned so far has to be a steam engine under load, something about that. As we are so far off topic now and nobody's got into Jake brakes yet, here's one especially for you Jack, turn up them speakers and enjoy!! http://uk.youtube.com/watch?v=4P0wgjpoQDw and if that ain't enough http://uk.youtube.com/watch?v=DH2WjAIoN8A Jeeeeez not enough yet? speaker cones not flapping in the breeze yet? try this LOUD http://uk.youtube.com/watch?v=2Omj6zxtIB0 Quote Link to comment Share on other sites More sharing options...
abn deuce Posted December 20, 2008 Share Posted December 20, 2008 Is this the kind of steam engine you were speaking of Jack ? http://uk.youtube.com/watch?v=Lj6sqV5eev4&feature=related There are many other clips but lack enough sound volume to be interesting so far , I ll keep looking and listening and let you know what I find . Quote Link to comment Share on other sites More sharing options...
Bystander Posted December 20, 2008 Share Posted December 20, 2008 Napier made some great engines. How about their Sabre: 24-cylinder, H layout, sleeve-valve, 36-litre, 3,500 HP Absolutely what a massive solid chunk of precision engineerd components, with all of that complex sleeve valve drive train. Another contender has to the Bristol Pegasus. All of the Roy Fedden designed sleeve valve Bristol Radials are things of beauty. One needs to look at a sectioned example to see the superb machining of the cooling fins and the Swiss watch like construction. P&Ws are so crude by comparison. Quote Link to comment Share on other sites More sharing options...
gritineye Posted December 20, 2008 Author Share Posted December 20, 2008 One of the best engines ever built to suit a particular purpose was the AEC 7.7 used in the Matador. It was designed to have an even torque band right across the rev range to suit the constant stop start usage in London buses. A local crane operator has a Mat (ex Southdown) still working for its keep and still running on it's original engine after 67 years! Unlike the more spectacular engines we have heard so far, it also has the ability to go about it's business without compromising it's position by being heard for 10 miles away, just quietly capable, good one Degsy :thumbsup: Quote Link to comment Share on other sites More sharing options...
antarmike Posted December 20, 2008 Share Posted December 20, 2008 I was only joking about the Lister D, really didn't expect anyone to take it seriously..... I'll give you a serious contender, The Rolls Royce (Bristol) Pagasus, that powers the Harrier and in is latest form which offers 15% more thrust. If suggest this for no other reason than its truly original design, that sets it apart from other jet engines. Quote Link to comment Share on other sites More sharing options...
antarmike Posted December 20, 2008 Share Posted December 20, 2008 (edited) and for the fact that it is one of the few aero jet engines that can self start, allowing the Harrier to operate away from any ground support, ground starting equipment. Truly independant.... Edited December 20, 2008 by antarmike spelling Quote Link to comment Share on other sites More sharing options...
antarmike Posted December 20, 2008 Share Posted December 20, 2008 (edited) Unlike the more spectacular engines we have heard so far, it also has the ability to go about it's business without compromising it's position by being heard for 10 miles away, just quietly capable, good one Degsy :thumbsup: But the 7.7 would have been even better if it had oil filtration as does the bigger brothers 9.6/11.3.... The 7.7 incidentally has a capacity of 7.58 litres so it ought to be called the AEC 7.6 A design specification was laid down to get the required power from a 7.7 engine, but someone c0cked up the cylinder diameter on the drawing board and the result was 7.58 not 7.7. By this stage the error was realised engine development had resulted in a test bed prototype engine block having been cast. The design team couldn't face telling the chief designer they had got the bore size wrong, and built and tested the engine regardless. It managed to acieve the desired output despite its undersized bores, so they decided not to tell the senior design engineer, but put it into production in its undersized form, and repudetdly, it was some years until he found out, (and he forgave them all). By then the name 7.7 had already been applied to keep the mistake hidden from view, and when the truth came out it was too late to change it. Had they used the diameter he had told them they would have got 96.5 BHP from the engine instead of the 95 they acieved, and as Freshco says "every little helps...." I seem to remember the problem was worse than this. The casting for the prototype block had been made smaller capacity than the 7.58 they managed to get out of it. It was designed for a lot less than this, and the block was bored out far bigger than intended, leaving far less walls than planned but still they only dared to take it to 7.58 Litres. The casting patterns were changed for production engines to leave a stronger cylinder wall, but still at 7.58 litres. It was a serious b7lls-up Edited December 20, 2008 by antarmike additional technical information. Quote Link to comment Share on other sites More sharing options...
gritineye Posted December 20, 2008 Author Share Posted December 20, 2008 Beautiful..... and before any one tells me I know there is technically no such thing as Centrifugal force rather it is a lack of Centripetal force, but I am keeping things simple... Mike, Whoever painted the arrow on the flywheel was having a problem with those forces, as that arrow is trying to go a bit tangential I think :-D Quote Link to comment Share on other sites More sharing options...
antarmike Posted December 20, 2008 Share Posted December 20, 2008 Mike, Whoever painted the arrow on the flywheel was having a problem with those forces, as that arrow is trying to go a bit tangential I think :-D You would have thought that the D should be the other way across the trolley so the wheels were facing away from the belt tension. Like that you will have to stake the engine down, Is there a reason why it wouldn't hold itself unstaked if the wheel axis was at 90 degrees to the belt tension? Quote Link to comment Share on other sites More sharing options...
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