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Very true, there isint a lot of interest in speedboats today. I remember some great ones when I was a child in the late 1950s and early 60s. I once saw an Albatross on a lake in Scarborough that was towing a water skier in 1959. I believe that is was made of aluminium instead of wood but it did have an inboard engine. . Another one I remember was the Dowty Turbocraft powered by a water jet driven by an inboard petrol engine . This was on the Southport Marine lake in 1961 and attracted a lot of spectators. It is up to us as model makers to keep the memories alive by what we build and sail. Boaty😎
Thanks for the positive comment, and yes, it''s a great pond, part of the Gulf Harbour development on the Whangaparaoa Peninsula in Auckland. It is home to the Gulf Harbour Radio Yacht Club, the members having built the jetty, and they race a number of times a week. I am about 15 km away in Red Beach but its worth the 15 minute drive on a day such as this one.
Hope this works as I can't figure out how to post a video! Click on the media file and then on the download button. The file should then appear at the bottom of your screen. Spioenkop is officially a MEKO 200SAN class Frigate. I duplicated the unusual drive used in these boats in that they have CODAG-WARP; COmbined Diesel And Gas turbine - Waterjet And Refined Propellers. I have the main props motors and the jet drive on separate channels. The video clip shows the first test of this layout with the jet drive coming in after about 4sec of video and is switched off just before the end of the video. I was just so delighted that my system worked that I unashamedly ran it madly over-scale speed on this first outing....sorry!!
My second scratch build. SA Navy "Spioenkop". 1:80 scale. 2 Mtroniks 600 motors on the scale 40mm (home made) props running on 6v and Hobbywing 860 brushed ESC. Jetdrive (also homemade) runs on a 550 motor (I think!) and a 1060 Hobbywing ESC running on 12v. Chopper is a heavily modified Hobbyboss RN Super Lynx. Hangar door opens as well as chopper moves on helideck with worm drive and magnets. Idea is that this would happen sequentially ... but haven't managed to sort that out as I am "electronically challenged". Suggestions welcome!
Doug, I may well take you up on that, mate. I would really like to get it going. Could you PM me your postal address? The Jeti I first saw was the 14 channel and that was £845 for the TX and £70 something for the RX. but I was only interested in the Tx. I wanted to frame it and put it on my wall! Czechs are SO clever and the women are stunning. The new 18 channel is about £1400, but they aren't anywhere near the dearest, even if they are the best. Haverlock, you can sing the Taranis praises all you like but anything that needs a PC to fiddle with it to get anywhere is the last thing I would pay good money for. I am a great deal more impressed by aesthetics in engineering, than complication. If I wanted to know what the batteries were doing I'd bring the boat in for a look. It would add some interest to what is essentially a rather tedious pursuit (which is why I have a preference, still theoretical, for sail). Believe me, I would never "get" the Taranis or anything like it, in a month of Sundays. I'm just not interested in all that techy stuff. Norman, I'd appreciate any input if you fancy digging around in yours. I wouldn't know what to look at. I didn't when it was soft valves and 90Volt Ever-Ready batteries and I don't now. I might have had Radio Control Models and Electronics Magazine from No 1, but none of it made the slightest sense and my Dad, (who paid for the subscription) never had the time to read it. I couldn't tell you the difference twixt a Super-regen and a superhet, a tone or a reed set. My old chum still has a working ED reed 8 channel set, but when flying, he has to constantly retune something with a plastic screwdriver, WHILST FLYING!!! And how did anyone ever do full aerobatics with single channel bang-bang escapement rudder onlies? Cheers, Martin
The Real Boat has jet drives, but unfortunately the little 20mm ones on the NDQ boat would not move a 52in version shown, there are larger jet dives for models available from Germany but it would cost a lot more than my budget would allow. I did try to make some but they were unsuccessful. I have seen them fitted to other smaller CB90's but the crash stop looks pathetic. and jet dives are not very efficient. I would love to take a trip on a real one! I've just found a plastic kit version by Tiger Here's a YouTube link to an unboxing:- https://www.youtube.com/watch?v=Fr5xGoMjBlI
Started on a new "in between" model boat Vivace drawn by Glynn Guest. I'll use a Chinese jet drive as designed by GG but with a minor modification 😁 Which is a BL Turnigy 3800KV 2627 running on 2S LiPo. (as I also did on my NQD Tear Into Pro Mod.)
Hi I like the boat would be interesting with jet drive. they are available quite cheap for the nqd jet boat from £9.01on ebay item no. 282721477302 comes with cheap brushed motor can be converted to brushless to make things interesting hope this gives you food for thought for maybe future build. thinking of building a deans marine PBR cannedheat and fitting it with a couple of these jet drives.
Scratch built at 12th scale from pictures and profiles of the internet. The boat was originally built in Sweden a class of fast military assault craft originally developed for the Swedish Navy by Dockstavarvet Speed: 40 knots (74 km/h) Draught: 0.8 m (2 ft 7 in) Length: 15.9 m (52 ft) Overall; 14.9 (48') Complement: 3 (two officers and one engineer); Up to 21 amphibious troops with full equipment Armament: 3 × Browning M2HB machine guns; 1 × Mk 19 grenade launcher; 4 naval mines or 6 depth charges . The Model I was attracted to this boat due to its great performance and maneuverability, this was mainly due to the use of twin water jets as the main propulsion, this is a trade off with efficiency. So my start point was to collect as much information as possible about the boat this involved collecting pictures and profiles of the craft from various sources. http://www.dockstavarvet.se/products/combat-and-patrol-boats... Eventually I found some plans of sort :- http://laurell.today/boats/combat/plans.html My Dad was a boat builder in the days of wooden yachts, and had showed me how to make plans and frames from a line drawing. I went about this first by creating a prototype about 24 in long out of light ply. I then created full size plans of the model to be made. Pictures of small prototype finally painted plain green. The Main model Used my computer to print out the frames onto paper, cut them out and used them as templates for the ply ribs. The construction was simple chine style, with 1.5 mm ply. I tried to build jet drives but failed to produce a effective unit. So reverted to propshafts which worked out well with better control and the boat can spin on it own axis by putting one engine in reverse the other in forward and adjusting the twin rudders. That it for now, hope it was of some interest
its a"pibber" this is the boat martin sheen used in the film "apocalypse now", first job for me would be get that cardboard flag off and find a silk one that will move in the wind! good fun looking boat though, and the jet drives mean iy could operate in shallow water👍
I guess it could be sealed up. The opening to the jet drives is small. You can't get your hands in! The opening which is under the 50 cal.on her stern. is meant more for working on the jet drives! To grease if you will! You could maybe spray some kind of sealer! But why have to fix a brand new boat! I was told I had gotten a leaky boat. As for her sitting low. It's just the design of the thing! As the jet drive pump water. the boat digs into the water! Don't get me wrong it's a great looking boat! I sent mine back, the wife wants me to get another one!
When you say leaks from the jet drive, is it not seal able yourself. I know you shouldn't need to being a new boat but is it just a bad seal that can be rectified with sealant ? I like the look of the boat it rides the water well at speed. But it does seem to sit very low in the water at slow speeds.