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>> Home > Tags > graupner

HMS HOOD by Trumpeter by cormorant Fleet Admiral!   Posted: 19 hours ago
Having sorted the wooden deck, I would now like to have smoke from the funnels (no pleasing some folks you may say!). I have no experience of smoke generators, but I have just got a Graupner 12v system. I am hoping it will generate enough so I can just use the one and manifold it - with brass tubing perhaps? - through both funnels. Can anyone help please? Thanks Steve

Cabin roof mechanism by BOATSHED Admiral   Posted: 1 day ago
I named my shed, The Boat Shed. Its a brick built building 13 ft x 10 ft. It was here when we moved here. And that's where I used my name from on here. So yes you are correct. The last 2 I bought were a RTR Proboat Miss Geeco and a Graupner Rhode Island F1 tunnel hull ARTR.

Aerokits Patrol Torpedo Boat by Biggles Sub-Lieutenant   Posted: 2 days ago
I have an Aerokits Fast Patrol Boat, what scale 20mm deck gun did you buy is it 1/24? Also I was thinking of powering mine with a Graupner 700BB Turbo motor and Nicad battery packs or Lipo batteries. My hull doesn't have spray rails, should I fit some? Sorry for all the questions but I'm returning to powered model boats after a long absence! Thank you for any help received.

1960S Taycol electric motor by RNinMunich Fleet Admiral!   Posted: 6 days ago
Hi All. all good advice for the normal brushed motors in cans with carbon brushes. But the Taycol is a totally different animal! It has no carbon brushes. They are simply stamped thin copper or phosphor bronze sheet. Contrary to carbon brushes they need OILING to reduce the wear and sparking! Attached are some pics from my Taycol Target renovation and modification to graphically illustrate the point. Pic one 'Before', pic 2 the new phosphor bronze brushes I made. BTW: don't EVER put oil on your carbon brushes! Try it if you're curious, but then buy a new motor or try to find some replacement brushes 😉 If you run the Taycols dry they wear the brushes through until they have a hole in the middle and spark like crazy Pic 1. You can put what capacitors you like on, you'll still get interference especially at 27MHz. Pic 3 shows the effect this has on the commutator. Pic 4 shows the renovated commutator, there was more 'meat' left on it than I expected😊 Pic 2 shows the new brushes I made from phosphor bronze sheet. The spark energy density spectrum peaks in the HF band (e.g. 27MHz!) and falls off rapidly in the VHF band (30MHz upwards) to virtually nothing in the UHF and Gigahertz bands. That (and the frequency hopping process the 2.4Gig sets use) is why they don't suffer such interference. BTW: as a matter of probably no interest 😉 most sets only use 16 or 32 of the 85 frequencies available in the band! 😲 The capacitor values given above are unusual and will only work with a 'canned' motor, which the Taycol ain't! The norm for a standard canned motor with carbon brushes would be 0.1µF across the terminals and 0.047µF from each terminal to the can, which with a Taycol you ain't got! Earthing to the prop shaft is also a problem. Where do you connect the wire? There's no 'can'. Frame? That's paxolin! try soldering to laminated iron core if you want. Good luck. Won't achieve much even if you manage it🤔 Once again I ask which Taycol you have, as the construction varies and hence the suppression methods / connections. Imperative is the condition of the brushes and commutator to minimise the intensity of the spark generation in the first place! Also important is how you are controlling the speed: also 'Period' with a Bob's Board or resistor coil and servo driven wiper?? These can also be spark sources😡 Never mind wasting precious battery power as heat😲 If you want to convert to using an ESC with proportional forwards and reverse, which Taycol field motors can not do without reversing the polarity of EITHER the field coil or the rotor coil but not both, I can show you how. I did it with Dad's old Taycol Target, see my Build Blog 'Sea Scout Jessica'. Pic 5 shows my Taycol target dismantled, before the renovation. Pics 6 & 7 the reassembled motor after renovation. Pic 8 shows the motor voltage across the terminals before the conversion, complete with gigantic sparks of amplitude 100% of supply voltage. Pics 9 & 10 show the waveform on the terminals of the modified motor at slow and fast speeds, hence different pulse width; broad pulse more speed, narrow less speed. BUT: virtually NO SPARKS😊 and no capacitors😊 Trick is in the bridge rectifier used to connect the motor to a standard brushed ESC. The diodes in the rectifier suppress the sparks😊 Pic 11 shows the wiring 'lash-up' I made to test the motor before mods. Pic 12 the PSU used for the tests. ESC is a 30A Graupner Navy. Instead of TX and RX I used a simple servo tester to drive the ESC. Scope used speaks for itself! As expected speed control was possible but no reverse. Media File 1 Vid shows the renovated motor running but unmodified, complete with sparks😡 Sorry Dave_M, I can't upload the ozone smell🤔 Media File 2 shows the scope display of the unmodified motor test, complete with the sparks that cause the kind of interference you are suffering from. Wanted to add the final vid showing the clean waveform after the mods but it's too big for the site: 30MB max and the vid is 47MB 😭 Penultimate pic shows the circuit used to connect to a standard ESC (Brushed!) for full remote control proportional forward and reverse. Final pic shows the test set up for the fully modified motor. Note 4 connections: 2 to field coil, 2 to brushes (i.e. rotor coil) as per circuit diagram of the interface board. Have fun, cheers Doug 😎

Krampus Yachts by Krampus Captain   Posted: 6 days ago
Some of my boats during a last weekend outing. Boats are at My Harbour. The blue boat (Fishfully Thinking") is based upon American-made Chris Craft 30 Tournament Fisherman, Stamas 32 sedan, and Bertram 28 boats. The yellow boat ("Cheapskate") is partially based upon a Bertram 31 sedan. The white vessel ("Juyilanga") was inspired on now defunct company's Uniflite 28-footer "Salty Dog" sport fisherman. Last but not least, the pink boat ("Pinkey Pie") belongs to my daughter and was built using an old Graupner kit inspired on a Chris Craft Roamer of the mid 60s. 😁

PT 109 by CB90 Lieutenant   Posted: 8 days ago
[Score: 7/10] 40"/3000g PT 109 Capable of 9mph and a runtime of 30mins Twin Propellors (3 Blade 35mm) Direct Drive to a Graupner 600s (3 Blade) Powered by NiCad (7.2v) 4Amp/h Batteries Controlled Through 2x Aquapower (30Amps) ESC - Comments: PT 109 The famous ww2 PT boat skippered by JF Kennedy (later to be President of the USA) This has be one of my have to have model boats and it was by luck that I found one for sale on a model boat club's web site in 2013, £100.00 later and a journey from Cumbria to Yorkshire and back, I had myself a ProBoat PT 109 This was a ready made RTR model when new and is 40in (1m) long, the boat needed some small repairs but after a test run I found that the running gear was noisy and on investigation discovered that both propshaft were bent and had no bearings from new, the couplings were just direct connections. So with great care I replaced both prop-shafts, propellers, coupling for two double Huco's (universal) and the single ESC by two new Aqua speed controllers and both motors with Graupner speed 600's Note I also foamed the front compartments to make it unsinkable in theroy.

PT 109 by CB90 Lieutenant   Posted: 8 days ago
PT 109 was one of the hundreds of motor torpedo boats (PT) of the PT 103 class completed between 1942 and 1945 by Elco Naval Division of Electric Boat Company at Bayonne, New Jersey. The Elco boats were the largest in size of the three types of PT boats built for U.S. use during World War II. Wooden-hulled, 80 feet long with a 20-foot, 8-inch beam, the Elco PT boats had three 12-cylinder Packard gasoline engines generating a total of 4,500 horsepower for a designed speed of 41 knots. With accommodations for 3 officers and 14 men, the crew varied from 12 to 14. Its full-load displacement was 56 tons. Early Elco boats had two 20mm guns, four .50-caliber machine guns, and two or four 21-inch torpedo tubes. Some of them carried depth charges or mine racks. Later boats mounted one 40mm gun and four torpedo launching racks. Many boats received ad-hoc refits at advanced bases, mounting such light guns as Army Air Forces 37mm aircraft guns and even Japanese 23mm guns. Some PTs later received rocket launchers. This Proboat PT 109 model was brought in 2013 for £100 these boats are rare now, This one had a few faults with the propshafts they were bent and noisy both were replaced, with quality 4mm shafts, motors twin 600s were also replaced by Graupner versions along with mounts and couplings, basically all the running gear, also two ESCs by Aquapower were added and a 2.4G RC system.

WWII Italian MAS 562 by CB90 Lieutenant   Posted: 10 days ago
MAS 562 (Motoscafo Armato Silurante: Torpedo Armed Motorboat) While Browsing the internet I came across a free plan dated 1969 if a Italian Motor torpedo boat I found the craft interesting as it had a stepped hull, and this looked like a challenge, so more research and historical digging. Built in 1941 by Baglietto, Varazze: built of wood (mahogany). Baglietto, Varazze: built MAS 561 through to MAS 570 MAS Baglietto class 500, 4th series" Displacement 27.8 tons Displacement max 28 tons Length 18.7m Width 4.7m Draught 1.5m Propeller shafts 2 Machinery Isotta Fraschini petrol engines and Alfa Romeo or Cararo cruising petrol engines Power, h.p. 2000 or 2300 / 140 or 100 Max speed 43 to 46 knots Fuel tank 1.5 tons Endurance 350 nautical miles at 42 knots Armament 1 x - 13.2/76 or 1 x - 20/65 Breda 1940, 2 x 450mm Torpedoes , 6 - 10 x Depth charges Crew complement 13 persons MAS 562, was captured by Germans 9/9/1943, transferred to RSI, was painted in disorientation camouflage, was captured by American PT' boats on June 30, 1944 and PT 306 towed the prize into Bastia. It was painted in disorientation camoflarge It is one of the few to have survived the war and passed to the Italian Guardia di Finanza in the 1950's. In 1940 there were 48 MAS 500-class units. The plan shows the gun on a box platform not the case on the real boat. Making this boat so small has been a bit of a challenge. Running gear 2x Graupner 600 8.4v about 70watts each at rated voltage. 2x shafts 2x opposite turning propellers (2 or 3 bladed) 3 blades on real boat. 35-40 mm 2x ESC 1 or 2 Batteries The Model after studying plans and photographs I could see a few things that I could add to the plans. A cambered deck A revised transom shape (not square) Two propshaft and two electric motors with air cooling. A reduction in the number of frames /ribs as the boat I was going to make was only 29in (83cm) long. the three main problems with the hull where :- the new frame positions and the thickness of the stringers the wood I used was too thick 12mm x 6mm for a small boat Correct gun and position. The Hull is now skinned I will upload some photos soon.

Perkasa Class by CB90 Lieutenant   Posted: 10 days ago
[Score: 8/10] 36"/3600g Perkasa Class Capable of 10mph and a runtime of 25mins Triple Propellors (3 Blade 35mm) Direct Drive to a 2x 600 + 1x 700 type (3 Blade) Powered by NiCad (7.2v) 3Amp/h Batteries Controlled Through China (25Amps) ESC - Comments: A Malaysian Fast Patrol Boat Perkasa produced by Vosper in1966,she has 3 gas turbines engines and a speed of 54 knots, and diesels for cruising. The model was built in the 1980s but has only recently been fully powered up for planning speed, handle choppy water very well, port and starboard motors are 2x Graupner 600 7.2v and centre motor is a 700 type motor, 3 shafts run 3x 35mm propellers and it has two rudders, the guns are remote controlled (Please note the stern/rear gun is not accurate and is just a copy of the forward gun Bofors 40mm and not the 20mm Oerlikon. Search lights, radar, running lights all work the 3xESCs are a cheap China ones that do the job but need to go to neutral before going in reverse, just use self centring joy sticks on the transmitter.

Perkasa Class by CB90 Lieutenant   Posted: 11 days ago
Perkasa MTB A favourite model boat there must have been hundreds if not thousands made. When I brought mine there was a choice between two sizes 36in (90cm) or 48in (120cm) and then you could choose between a wooden hull or a fibreglass hull. I went for the smaller boat with the fibreglass hull. this was back in the 1980s. Background of the boat The boats Perkasa class consisted of three motor torpedo boats built by Vosper (UK) for the Malaysian Navy as follows:- Perkasa 150 Penula 151 Handalan 152 This model has 3 motors, port & starboard are Graupner 600s and one 700 type in the centre runs 3 ESCs front and rear guns operate via servos, with flashing LEDs down the barrels.

Graupner switcher unit for sale by kmbcsecretary Lieutenant   Posted: 11 days ago
Primarily sold awaíting payment

CB90 by CB90 Lieutenant   Posted: 11 days ago
The Model is scratch built from Photos and profiles of the internet it is around 52 inches long and currently runs on two Graupner 700 turbo motors (14.4v) and dual Mtroniks 25A ESC (12v) running twin contra rotating 45mm props, this model can spin on its own axis like the real boat but does not use waterjets due to cost. Completed in 2017. Whats a CB90 Its a Command Boat 90 originally built by Docstar in sweden and later also built in the USA under licence. The boat has a multi role capability and has be used by the Army, Police, Coast Guard and Ambalence Service Originally a Military craft for coastal waters and rivers with a shallow draft and powered by twin water jets this 15 ton Aluminum boat can deliver half a platoon directly on to beach heads via its landing craft type single man door at the bow. This craft has excellent manoveraility and can crash stop ( go into full reverse and stop) in 1.5 x its length. No-wonder the american's wanted this boat. Video of real boat

Amsterdam by jugge Sub-Lieutenant   Posted: 12 days ago
Hi Jarvo and all guys , Thanks for all your response i have a 12 v Graupner 700 bb turbo and 2 lead acid 12 v battery and a 70 mm brass prop 4 blade

Graupner switcher unit for sale by kmbcsecretary Lieutenant   Posted: 16 days ago
open to sensible offers and all proceeds will be donated to this site

Graupner switcher unit for sale by kmbcsecretary Lieutenant   Posted: 23 days ago
Found this at back of a draw in the workshop Graupner sxm 4 channel switcher unit. This is the link to the Graupner site for full info on the switch https://www. style='background-color:yellow;'> Retail at around £28 looking for £20 posted , can except PayPal or BACS