In July 2015 the 26ft Firefly sailed from Ramsgate to Dunkirk with a fleet of some 50 other Members of the Association of Dunkirk Little Ships to celebrate the 75th Anniversary of the evacuation. These little ships have an admiralty warrant to fly the St Geoge's Cross at the stemhead, a unique honour! (google images have lots of pics of her) Lovely model............Lemmerhengst
Hi Martin, have to admit I haven't flown it yet, the damn Orange RX won't work with my TXs 😆 So I'm about to buy the Lemon version, which is supposed to be Spektrum DMX and DSM2 compatible! We'll see! Guess I could at least do some taxiing trials with a standard RX on the Ostpark lake!? I haven't actually flown anything for nearly 50 years 😲 Did once 'fly' a Victor tanker simulator, that was fun😁 Also flew a real Grumman trainer a few times, from Blackwater airfield near Camberley, just before I left UK for Germany. That was LOADS MORE fun😊 For your 'smallish hairyplanes' the stabiliser RX could also be useful!? Just so happens 😁 I've got an Orange version, which works with your TX😊, going spare!!😁 In my, admittedly limited, experience small RC planes can be very twitchy and sensitive to winds! That's why I switched to ship building; two Totals and a Fly-away😡 I can swim but I can't fly 🤔 You absolute nut! You gave away such a treasure! Without even arranging some royalties? I'm surprised at you 😲 1/7, wow! 10 times the size of the Airfix kit I built back then. The EE Lightning was a nice bird (sheer brute force and ignorance😁), but not a patch on the Hawker Hunter for sheer looks and just STYLE! I flew the KeilKraft version for while, until I managed to Jetex it outta sight, at RAF Hemswell, now a housing estate I see 🤔 Nostalgia ain't what it used to be, or ...? Alles gute alter Knacker! Cheers, Doug 😎
Hi Martin, The RX with flight stabiliser is for my Catalina flying boat!! It just helps to keep things under control on windy days 😊 Automatically adjusts to wind gusts. A tip I got from PMDevlin here on the site👍, who has the same Catalina model and got me hooked😊 First pic is Paul's, second pic mine! BTW: they have two brushless OUT-RUNNERS!! The stabiliser might help a boat / ship that is sensitive to side winds I suppose!? The auto aileron control wouldn't be a lotta use tho! Unless of course adjustable stabiliser fins are fitted, like on modern cruise ships😁 The pissibolities are endless these days 😉 More power to your budgets folks, cheers, Doug 😎
Hi again Mike, forgot to mention the false floor bit! Sorry, no pics - shipyard design secret! 😁 No, haven't got that far yet. Still have to make the gear end plates so I can get the shaft spacing / gear meshing right, i.e. height of the motor above the prop shaft. Plan is to fix an ally plate into the hull with captive 4mm domed nyloc nuts fixed in it. The Taycol has right angled brass mounting brackets for vertical fixing so I shall mount it using 4mm bolts with compression springs between the brackets and the ally plate. The nyloc nuts SHOULD hold things in position! That way I should be able to adjust the motor height and tilt in any direction (well, pitch and roll anyway!) to get the two shafts parallel in the vertical plane and optimum meshing of the gears and minimum vibration. That's the theory anyway 😉 Then I only have to worry about getting the shafts aligned in the horizontal plane, the 'Yaw'. Which should be relatively easy with careful fitting of the ally plate. Minor yaw adjustment could be accommodated by opening out the bracket holes to curved slots with a diamond file. Objective is max power transfer with minimum noise and friction. Not to mention easier mounting than fiddling about with shims! And I don't have to worry about not getting the angle of the ally plate in the hull dead right 😊 Accurate measurements inside this sloppily built hull are virtually impossible! There are no right angles or straight lines or even symmetry where you would normally expect them 😲 So no true reference points or datum lines. We'll see. Cheers, Doug 😎 Ooops! Somehow my response to the motor conversion 'secrets' slipped into the previous Update!? See below in 'A Messy Business'.
oh and the jam goes on the scone before the clotted cream!!! That's how it occurs some one makes a statement that may have some tangential relationship and people respond this is a forum of ( generally) rugged individualists who spend a lot of time and money on something the rest of the world considers pointless.
As promised (or threatened?😁) stage two of the hull work and thoughts on motorisation. The hull was sprayed with two coats of grey primer/filler. Pic1. As usual this showed up the remaining imperfections (pics 2 & 3), but I'm not going to worry about them until I've got prop shaft tube and rudder stock sorted out and permanently fitted 😉 After my attempts to make and thread a 3mm prop shaft went awry Martin (Westway the Mechanicals Master👍) stepped in and made me a decent one complete with a bushed stuffing tube 👍 Vielen Dank Meister😊 I did however manage to make a 4mm to 3mm reducer so that I could fit a Rabeosch 35mm prop as seen in pics 2 & 3. The tube and shaft from Martin, arrived Saturday an' he only made it on Monday😊, have been dry fitted so that I can start setting up the gears, necessary to bring the drive down to the prop shaft fitted very low down in the hull, and motor mount. Pic 4. Motorisation: (Remember folks - this kit was designed and built as a static model!) I want to use the old 1950s Taycol Target motor which my Dad originally fitted in the Sea Scout which I have renovated and upgraded to brushless. See Build blog 'Sea Scout - Jessica' Many of you will know that the Taycol motors were field coil motors, meaning that they have no permanent magnet around the rotor coil, and thus reversing the battery connections to the brushes had no effect on the direction of rotation, as this simply reversed the magnetic fields of both stator and rotor coils🤔 To counteract this so that the motor could be used in both forward and reverse with a conventional brushed ESC I modified the motor slightly (separated the two coils) and built a simple converter board to connect it to the ESC. Again see the Sea Scout blog for the details of the conversion. Basically; once the field coil and brush-gear (rotor coil) have been separated a simple diode bridge can be used to apply the output of the ESC to the motor. This enables the reversal of EITHER field OR rotor coil polarity, depending on how you connect the converter to the motor. Thus reversing the direction of rotation of the motor. Beneficial side effect is that the diodes also suppress the commutator sparking😊 In my case, with the Taycol Target, I also cleaned, flattened and polished the commutator. Thus significantly reducing the potential for spark generation in the first place! A peculiarity of the Taycol motors is that they all use metal brushes, pressed phosphor bronze strip, so they need oiling! DO NOT oil conventional brushed motors with carbon brushes unless the brushes are exchangeable or you want to have to buy a new motor!!!!! Pics 5 & 6 show the proposed position of the Taycol in Gina 2 and pic 7 the prototype converter board I knocked up to test the motor, together with a Graupner Navy V30R Marine Brushed ESC. Details and results in the Sea Scout blog, including video of the sparks and oscilloscope pics of the drive waveforms before and after conversion! The latter showing the spark suppression effect of the converter😊 Some samples attached - last 3 pics. Pic 8 pic shows a more compact version of the converter, one of a few types I'm doing for Martin's various Taycols as a trade for the prop shaft he made for me and some useful material he sent. Thanks mate👍 Next steps will be 1) mounting the gears correctly on the shafts, requiring the manufacture of a 3/32" to 4mm adaptor and a 1/8" to 4mm adaptor, and keying them to the shafts - Hooray for mini milling machines 😉 2) manufacturing bushed end plates to hold the gears in place, 3) fitting the motor mounting platform. I'll probably borrow from my experiences of real shipbuilding and do this as a suspended 'false floor', i.e. mounted on stiff springs to enable adjustments to optimise the gearing mesh! On real naval ships this is done to improve shock resistance and to minimise engine noise / vibration conduction to the hull, thus significantly reducing the acoustic signature of the ship. Not that I'm tooo worried about being torpedoed 😁 Worth a try😉 Pic 9 shows the cleaned up and renovated Taycol Target motor. Pic 10 shows the drive waveform complete with sparks before modification.🤔 Pic 11 the cleaned 'forward' waveform with the converter board. Pic 12 the cleaned 'reverse' waveform, no suppression capacitors needed 😉 More soon folks, Cheers, Doug 😎 PS Along the way a new keel was fitted as can be seen in pics 1 to 3. The original builder had 'buried' the keel in the hull planking! 😲
Making a ship's wheel, specifically the turned spokes of a ship's wheel, and 20 of them all a-like, has been beyond me. So I gave up and got Model Monkey on Shapeways to scale his Constitution wheel up to 1:36 scale, and got 4 of them; 2 for Constellation, and 2 for Macedonian. The helm is made of mahogany. The curves braces laminated from some strips from an old kit; the uprights from some scrap left from a musical instrument build. The drum is some mahogany dowel, from a kit again, and a brass rod axle. Some paint and clear-coat and it's just about done. I was going to make it operate when the rudder servo moved, but a spoke handle fell off while painting, and I figure it's a bit fragile to be spinning at "non-scale" speeds, so it'll just get some line wrapped around the drum for show.
More or less Martin 😉 After two attempts (7 and 15 years) I gave up the institution of marriage for life. The first nearly drove me into financial ruin, the second was so jealous that after every business trip I was subjected to the Spanish Inquisition, you can only stand that so long, last heard of with her boyfriend in USA. I divorced both. Lessons learned. Since 1995 I have a great partnership with my German girlfriend Gisela, who was also married once, to a latent alcoholic. We both agree; we don't need a piece of official stamped paper (much less a church paper) to show we love each other. We've been partners now for 23 years 😉 Cheers, Doug 😎 PS; "were" is correct. I have to admit that there was a transition period while working in Brazil that was very interesting 😉 This post expresses purely the poster's opinion based on his experience and in no way denigrates or derides the differing opinions / experiences of others who had more luck.