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>> Home > Tags > engine

engine mount
engineering show
The Building Board by Ianh Sub-Lieutenant   Posted: 2 days ago
I made this from a 54" long piece of Melamine shelving. shallow cut a centre ine down the middle 1/16" wide. The board was then marked into 2" squares using a laundry marker. The design concept was from a fuselage jig I had made by SLEC. The holes required for the brackets are M5 with captive ( T nuts) underneath pulled up into the bottom of the board. The red tape down the centre is masking tape ( the high quality stuff) this was to stop the boat glueing itself to the board. As the the keel has a skeg we needed to raise the keel to ensure parallelism I used an Enginerers Marking out block and two doorstops on this.The angles can slide and you then clamp the Bulwarks on I used thirty minute epoxy for this although I would like a longer working time epoxy. Bulwarks 3 and 4 with the motor base was also epoxied together. This was then located on the keey ( Dryfit along with the other bulkheads. A word of advice here use the cabin sides to ensure alignment. Check with a rule and squares before gluing anything.

Veron Vosper F.P.B. 52" by kevinsharpe Chief Petty Officer   Posted: 3 days ago
Hi This model is a particular favorite of mine. I am restoring one having converted to twin electric motors. Quite a rare kit but impressive when made and is 52" hull. Hull is really strong and initially made for 10/15cc engine. Cabin structure quite testing to assemble. I have totally re worked mine. Quite a rare kit and probably collectable. Would probably sell well on e bay. Fleetscale do a hull deck and running gear but the cabin would be a challenge due to its unique shape and flying bridge. An excellent find. Regards Kevin

Hobby King receiver clones by RNinMunich Fleet Admiral!   Posted: 6 days ago
I had realised that John, the acronym DEAC had simply revived some ancient memories of my early days in mobile and hand-portable radio engineering. Circuitry and components, early ICs etc, were moving on much faster than battery development could keep pace. Good to hear from you👍 Pecker up old chap, with you in spirit. Best wishes, Doug

Cygnus GM32 by GrahamP74 Admiral   Posted: 7 days ago
Nice work so far! My last build was a GM 33. I’m not great with electrics but have similar engine to you with a 700mm screw. Will be watching your model take shape, love a good fishing boat!

Wild thing by Hybrid Sub-Lieutenant   Posted: 9 days ago
Fully had made chris craft deep v racing boat evey think u.see is had made apart from engine and.the driver. She is.fully restored to her original self made in 1972. Have added a self bailing system and a new had made shaft with own greaser valve. Thanks hope u all enjoy

Bulwark Stays by Mikep Commander   Posted: 10 days ago
Thanks for the kind words and history my farther was a engineer on merchants libertys and Victory’s WW2 all battle theatres Murmansk the lot. I was his wiper Oiler, fireman on stationary boilers and generators eventually got my NYC High pressure license and refrigeration license. I recently took a day trip on the S.S. John W Brown in Baltimore USA.

Kingsmere Model Boat Club by BOATSHED Fleet Admiral!   Posted: 10 days ago
I do have several model boats with both petrol and nitro engines in them. One I have is a 48" PPT109 with a 26cc petrol engine and the exhaust has the water cooling going out via that way. It runs at a pleasant hum rather than the normal engine sound. It is a lot quieter than someone using a petrol lawn mower or a petrol strimmer. It is even quieter than most brushless model boats. Yet I am not allowed to use it on a pond on Blackheath just because of it's fuel system. I'm told that it's due to sound rather than fuel. The local council have a ranger that comes round and give you an £80 fine if you are caught using one. I find this totally stupid when they use petrol lawn mowers and strimmer's to keep the whole of Blackheath's lawns cut. I have a Proboat Miss Geico tunnel hull model boat and the motor screams when it's running but I'm allowed to run that on the pond.

W1 by jbkiwi Sub-Lieutenant   Posted: 17 days ago
Thanks for the kind comments. Planking did take a couple of days but was not done all that neatly (just clamp and cyno) as I was glassing it later - it was all thin resin coated inside to seal it). Planking was just a hint at the original so you could just make out the planks through the glass. Have included a few more pics of the motors and interior which is not that flash but is unseen, (more for the fact that I had seen the original and was sort of putting down what I remembered from when I was 15) There is a small picture at the top left of the stairs which on the original, was a Photo from an HSL looking off the Stbd rear 1/4, to 2 64ft HSLs side by side climbing over its wake at speed The stair set is the original from the wheelhouse to wardroom, which has been kept and used again by the present owner (down to utility room in front of engine room) and still has the original 'POWER BOAT' rubber treads (not bad nick for 79yrs old!)

Darby One Design hydro... by Westquay Fleet Admiral!   Posted: 20 days ago
It certainly could, Dave. I tend to think a residual wake from his own craft is as good a cause as any as you say he didn't refuel as he was keen to get his second, return, run in for the record, which he would definitely have achieved as he had already gone much quicker on the first. It's reckoned he was doing around 340mph when the accident happened. A great loss. Colin, not sure why your thread is on this one, but in a helicopter the only engine you would find, would be a glow engine, not a diesel. So I think we're still looking into an easy way to make our own model diesel fuel. The only reason our little engines are called diesel is because, like a big diesel in a car or lorry, ours are compression ignition. A glow engine is merely a 2 stroke with the glow plug taking the place of the sparks system on a petrol powered engine. And of course, as if to prove that is the proliferation of 4 stroke glow (and now petrol) engines. Or gas engines as the Americans call them. And they have shot into use because petrol is comparatively cheap and there are small electronic ignition systems of great reliability now available. Martin

Darby One Design hydro... by Colin H. Fleet Admiral!   Posted: 21 days ago
As I have never seen one up close I don't know. They only fly inside the camp, but some of the pilots fish in my local lake which is behind the camp, and we chat about models in general and they will sometimes offer help in getting my boat down to the water. They offer advice on my radio systems as the old vintage stuff I have can cause interference. So they advised me to use 2.4ghz here. Next time I meet with one of them I will ask about the engine details. Cheers Colin.

Darby One Design hydro... by onetenor Fleet Admiral!   Posted: 21 days ago
Well Col tell us about these choppers. What engines are they using. Ignition type etc . Because if you can reproduce this fuel you could make a fortune flogging it.😁👍 No names no pack drill we don't need to know that just the blend of the fuel.🤔 This secret has been sought after for years.😤

Darby One Design hydro... by Colin H. Fleet Admiral!   Posted: 21 days ago
No just regular diesel with a few drops of methanol, as its a diesel engine it's compression ignition and the methanol is just an additive to clean up the combustion, it's basically a sports mixture used by the fly boys for their helicopters. Cheers Colin.

Darby One Design hydro... by onetenor Fleet Admiral!   Posted: 21 days ago
Well Colin I'm amazed Because even alcohol fuels need an ignition source .Usually in model engines a Glow plug sometimes a spark plug.Is there anything else in the mix? BTW see my modified post above. We are all fascinated to know how it was done.👍

Darby One Design hydro... by Colin H. Fleet Admiral!   Posted: 21 days ago
Definitely methanol, I have just checked with the flight engineer who it came from on the camp. He said any type of ethanol would have been okay but that's what they use. Cheers Colin.

Darby One Design hydro... by Westquay Fleet Admiral!   Posted: 21 days ago
Dowty Turbocraft was smiled upon by Donald Campbell as a service vessel after he'd used Albatrosses. It's thought it was a bit of wash from the Dowty that caused his final crash. i I used to have a Mk 1 Albatross, Hull 137, but nI couldn't use it anywhere fast due to river speed limits, so I flogged it. It was all riveted aluminium, made by ex Spitfire makers. The countersunk rivets, after over 50 years were so well applied you just couldn't see them. Amazing craftsmanship, but when they were first on sale, they were the price of a small house! I paid rather less, rebuilt the engine, repainted it and flogged it for a lot more, then made a 1/6th scale model of it and sold that to a man who owns most of the boathouses round Windermere. A Ford 1172 sidevalve engined boat would tow 2 water skiers amazingly. There's a website called Old Speed Boats that deals with Dowty Turbocraft well. Cheers, Martin