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>> Home > Tags > vosper

vosper
vosper
EarlyVosper M.T.B by Simplas by RNinMunich Fleet Admiral!   Posted: 4 hours ago
Hi John, Near the bottom of the article peak power of 0.41bhp @ 20500 rpm (!) is mentioned, so almost twenty times the power of the Supermarine at ~ 5 times the revs😲 Cheers, Doug 😎

EarlyVosper M.T.B by Simplas by boaty Captain   Posted: 5 hours ago
Hi Onetenor Fuji 15 was a good glow engine which I don't think it is manufactured any more. Aero version max B.H.P was just below .40 when tested. If it was in a model aircraft it would have been around .20 to .25 depending on prop size which was good then for a small capacity glowplug . Marine versions when on the water put out a little less and the water cooled jacket was never as efficient as the finned cylinder jacket of the aero version. My two Aerokits boats, the Sea Commander and the Crash Tender are powered by single Speed 600 motors running on either 8.4 or 9.6 volt Ni Mh batteries. Performance is equal to that of marine diesel power such as the 2.46 Ed Racer and D.C 2.46 Rapier, the latter I used to watch in the fast steering events in the early 1960s at Fleetwood and Coronation Park in Crosby just outside Liverpool. Taycol powered versions would be obviously slower due to the additional weight were far more reliable and you did not have to put up with injuries from excessive use of a starting cord with kids watching and "extracting the urine" shouting "why wont it go mister". Boaty

EarlyVosper M.T.B by Simplas by onetenor Fleet Admiral!   Posted: 13 hours ago
Hi Doug Yep you're right about the battery of course. This might help if you can plough through it as the sections are a bit scattered.----http://sceptreflight.net/Model%20Engine%20Tests/Fuji%2015-IV... I haven't read it right through so don't know if there is enough info for comparison.👍 Night all😎

EarlyVosper M.T.B by Simplas by RNinMunich Fleet Admiral!   Posted: 14 hours ago
"Maybe but ballast ,is ballast,is ballast. However it's achieved." Sure John, but at least a heavy battery is useful load and not 'just' ballast.😉 Have no idea what shaft power the Fuji produces (only know their excellent 35mm film😉) but the Taycol Supermarine is rated at 22.5mHP (22.5/1000HP) at 3.5A, 4000rpm. Efficiency 52% 🤔 so you have to stick twice as much electrical power in to achieve that! Sooo, given that 1HP = 745.7 Watts - And electrically P=IxV (Current x Volts) 22.5/1000HP = (745.7*22.5)/1000 = 16.778W so ~33.55W in. Thus if I = 3.5A they must have done that test / measurement at about 9.6V. The Supermarine also runs great at 12V but maybe not with max efficiency!? With a spec weight of 2&1/2 lb i don't even want to get into Power to Weight Ratio, although I measured Colin's motor at 947gm = 2.0877776229lb 😉 But then, some of the motor had corroded away As I'm currently renovating a Supermarine for Colin H. This makes me start thinking about rigging up a test jig so I can see what it actually produces!!! Always up for a challenge 😁 Got nowt else to do 😁😁 Would be useful for other motors as well if I can get it figured out😉 Happy fiddlin' folks, cheers, Doug 😎

EarlyVosper M.T.B by Simplas by onetenor Fleet Admiral!   Posted: 15 hours ago
Maybe but ballast ,is ballast,is ballast. However it's achieved. The overall effect is the same. Would the Taycol Supermarine have had more power than the Fuji? Or at least the equivalent.?👍

EarlyVosper M.T.B by Simplas by boaty Captain   Posted: 1 day ago
Found on E Bay but sold in June of this year, a 42 inch kit of a Simplas Marine Construction Vosper M.T.B. It would appear that there are not many about now. I built one in 1972 and the kit contained a fibreglass hull with all fittings including the guns being in cast metal. Deck and superstructure were plywood and the boat was a model of an early Vosper as it had a very narrow beam and torpedo tubes were towards the stern. I fitted a DC Sabre 1.5cc diesel but had to add a lot of ballast which resulted in a sharp drop in performance. This was solved by replacing the Sabre with a Fuji 15 marine version glowplug engine . The boat was free running and as I was on an apprentice engineers pay and could not afford r.c.as I was having to support an ageing Mini. This was my transport from Ellesmere Port to the boating lake in New Brighton. If I had bought a Taycol Supermarine motor it would have solved all my problems as the battery would have been the ballast. Boaty 😁

Looking for Vosper Gunboat from Republic of Singapore Navy by RNinMunich Fleet Admiral!   Posted: 10 days ago
Mornin John, Yes, so far I haven't found an Islay malt I don't like. Jura was the first I ran across and their Superstition is very nice. Lagavulin was a recommendation from a secretary (!) at work a few years ago, and the group I worked for (Naval Communications Systems) gave me a decent supply when I retired last year 😊 The EDEKA chain here have a few larger 'up market' stores which carry a decent selection, including Jura and Lagavulin etc, at halfway reasonable prices. 😉 For more exotic varieties there is 'The Whisky Shop' in the centre of Munich. Spoilt for choice😋😋 'Through the teeth, round the gums, look out stomach, here it comes' 😁 All the best, Doug 😎

Looking for Vosper Gunboat from Republic of Singapore Navy by onetenor Fleet Admiral!   Posted: 10 days ago
I thought you'd recognise Superstition from liking Lagavulin I can't seem to find any locally. I'll wait till I can get out . Aldi do some nice ones. One in particular is nice and oaky/peaty. Can't recall the name right now but Ant got it for me for my birthday last year. Lovely stuff. With not drinking much It takes a long time to sup it🤓 Still sad when it's gone though😭 Sorry I nodded off so never saw G'night post. G'night doug😤👍

Looking for Vosper Gunboat from Republic of Singapore Navy by RNinMunich Fleet Admiral!   Posted: 11 days ago
G'night John 😎

Looking for Vosper Gunboat from Republic of Singapore Navy by RNinMunich Fleet Admiral!   Posted: 11 days ago
Lovely stuff 'Superstition'👍 Elegant bottle as well. Lagavulin is from further south on Islay and a tad darker and peatier. I like 'em both. Cheers John! All the best, Doug 😎

Looking for Vosper Gunboat from Republic of Singapore Navy by onetenor Fleet Admiral!   Posted: 11 days ago
Jura Superstition single malt for me at the moment. Just breaking my norm a little🤓👍

Looking for Vosper Gunboat from Republic of Singapore Navy by RNinMunich Fleet Admiral!   Posted: 14 days ago
Thought it was odd Steve, unusual for you! My info came from WikiWand, sort of WikiPedia on steroids😉 Naah! Don't give up the 'water of life', maybe just a little original spring water with it😉 I toast you with a 16 year Lagavulin! Sláinte 😊

Looking for Vosper Gunboat from Republic of Singapore Navy by cormorant Fleet Admiral!   Posted: 14 days ago
What an idiot!! (Me, not you Doug) Dementia rules, KO. Must stop drinking whisky. In answer to your question - not a clue! Going to bed for an early night. Cheers (I think) Steve

Looking for Vosper Gunboat from Republic of Singapore Navy by cormorant Fleet Admiral!   Posted: 14 days ago
Ah, the gun turret. The things you can do with half a ball cock! However, I would beg to differ with the pennant number. My information came from https://en.wikipedia.org/wiki/Independence-class_patrol_craf... If you click on ref number 5 it shows the source here http://www.nas.gov.sg/archivesonline/photographs/record-deta...

Looking for Vosper Gunboat from Republic of Singapore Navy by RNinMunich Fleet Admiral!   Posted: 14 days ago
I thought it was you Steve👍 but wasn't sure. I remembered the business about the gun turret😉 Cheers, Doug 😎 BTW: Why is your boat wearing Justice's pennant number !?😲