Believed to be scratch built, evidence of old 1 gallon REDEX oil container forming main deck, bits of Mecano used as stiffening and support.
It has a Basset Lowke model 1461/u (motor, stern tube, prop shaft and prop) Set.This dates from the mid 1930's and would have cost 7/- Shillings for those old enough to remember, that would have been abut a day and a half's wages. The photo's show what the motor looked like as it came out and then after cleaning and testing, and yes it runs very smoothly in forward and reverse, from 3 volts up to 12 volts, seems to be quite good at 6, so will probably use when rebuild complete.
As you will see from photo's there is a lot of restoration to do before sailing again.
Now you've stopped laughing, can you identify the type of ship it's meant to be, I thought a Coaster.
1959 kit built, restored two years ago,removed the ganette 15cc 4 stroke and replaced it with a bruhless motor which is a EMP 5065 410kv with a 100amp ESC and 4cell 5000 lipo turning a x70 two bladed prop, runs times up to 20 minutes, and a very good but over scale speed, will take a video of her next time a I take her out.
Second decent run with this boat- rather sedate I think. At the moment it's drawing 33amps (stationary, 16.5 amps each motor) with both motors running from a 12v Nimh pack. I want to get each motor running off a separate LiPo and then I could probably increase the prop size- still well within the esc rating and the motors are very cool after a run at the moment. it seems a bit back heavy and I'd like to get it running flatter- so will try moving the batteries more amidships.
HI Ian
See you are making good use of the wattmeter 😀
Like the video and agree the balance could benefit with a bit more weight amidships.
Listening to the video sound suggests your motors are not developing full power so I suspect the NiMh's are not capable of delivering the amps required.
You could try smaller props with the NiMh's to see if the performance Improves, could be your motors are working just below the optimum.
Dave, I found that the Nimh batteries were dropping off to around 9v at full power when measured with the wattmeter and this is why I want to go for Lipos, one on each motor. At the moment I'm taking everything from one pack and I think this is the limiting factor.
When I get my Lipos I will stick them in the middle and try larger props, probably 40mmS types to begin with, having measured what's going on with the wattmeter first. it may be that the existing props will do better if the batteries are delivering up what the motors want. You're right, there is still plenty of headroom with this setup.
Just got to rake up the cash for two largish capacity Lipos!
The wattmeter is a splendid purchase- I'd say essential for this type of thing.
Anyway, glad you liked the video- she still looks quite good toodling around at that speed.
First trial run after purchase off good old Ebay. Running 26kv motor and 11.1v lipo. its a little bit "skippy", but after returning to shore, it looks like it may simply be the height of the prop shaft, so now adjusted, ready for a second trial shortly....more to follow.
They can be very stable and get a higher level of speed over a mono hull. BUT ...... yep, there always has to be one............ I find that a mono hull can sail in any type of water condition, twin hulls, or tunnel hulls are better suited for calmer water. the main risk is for the hull to flip over backwards if thits the crest of a wave and the wind gets under the bows, the centre section then acts as a sail , wind catches it and lifts the hull nose up........... and over !
If you get the chance to sail one.......try it, they are good fun to sail, take a bit of concentration to get the best speed out of them, especially on turns.
Its like any boat, there are good things and bad in all of them to a degree.
A Lesro Rapier built from a new kit undertaking its maiden voyage. Two 700 9.6v motors with two Mtroniks 40 amp esc's run on 12v with two 37.5mm props. The performance was somewhat disappointing. When the photo was taken I had a 14.4v pack in, forgetting the 12v limit on the esc's -but I got away with it!
I would try and leave the cooling slots fully open, to allow air to circulate through the motor internals. Same goes for any air slots in the front face of the motor, always try and make a hole on the motor mount [if none in], to aid airflow through the motor.
if you cover the slots up, you are only adding to the internal temperature of the motor you are trying to cool.
Purchased secondhand, upgraded to a proper motor esc rather than the original/factory on/off micro switch for the motor power. Running a graupner 600 race motor and 7.4 lipo, basically just to run the brushes in on the motor before raising the battery voltage,
bit of a shaky video but try holding the transmitter and filming at same time on your own [ha ha].
it does have the capacity to move a ot faster, but would sooner work the motor in fully first
I've had this boat in the shed for years and at last have started to do some mods on it but will it work, will hopefully try it tomorrow at Cwmbran. Has any one tried this before, it will run on a 3800KVa Brushless Outrunner from an Helicopter with a 70 Amp Red Brick Forward only speed controller, first runs on a 7.4 2 Cell Lipo and then 3 cell 11.1 volt Lipo and if I feel brave I have a 4 Cell 14.8 volt Lipo as well, it's prop is 30mm but have 25mm and 35mm two blade bronze ones to try.
Looks like you are in for some serious fun. You may be able to get the best performance if you have or can borrow a wattmeter to see the effect of different battery / prop set ups. Brushless motors and LiPo's don't like it if you exceed their power ratings.
Looking forward to hearing the results, or maybe a video of the boat on the water.
Good luck 😀
HI I am not sure what kit this is or was but I know that its not the Aerokits version. it was bought on Ebay about 2 years ago and it has been restored to what you see attached. it is running on a Johnson 600 and a 35x prop, power is from a 11.1 volt Lipo.
Hi! Fellow modelers, The Vosper kit was matketed by KeilKraft a British agent some time during the 60's, I actually was their agent in South America, but I believe that now they are no longer in business. it is a beautiful model. I did have a good run at my previous home in Guyana, in a cane field then flooded, it worked beautifully with the diesel engine/ screw prop assembly by Graupner. Now I have to look at electric of which I know very little., but I am hoping that the model shop will help when I am ready. Thanks Ray
HI Ray, The sail at Cwmbran today was a success the boat out performed the previous setup. Several members run Vosper fireboats all running electric power, one with a gearbox 2:1 reduction and two models like mine with 700 size electric my run time on 7.2 volt 3600Mah battery is about 30 to 35 minutes with some fast runs, shorter with all fast running. On 9.6 volt 3700Mah (4.8 x 2 in series) runtime is about the same but model is very quick. On 11.1 volt Lipo 2200Mah battery run time is about 15 to 20 minutes but very very quick. I buy most of the Johnson motors that I use on Ebay the prices vary but all are cheap and I have had no problems with any of them. Our Club is all Electric, but that does not mean slow boats. Electric power has evolved in leaps and bounds over the last few years.
Regards Graham
My recently purchased witches hat props from Gsitek...there,the dogs danglers,and I think they are the biz,...mind you, I doubt if the stickies and taddies will be able to tell the difference,
This is my 1/24th scale S80 Schnellboot,it has a Metcalfe GRP hull,the superstructure is a mix of 3mm/4mm ply and 2mm plasticard,it has 3 x Graupner 600FG motors that have a 3.1 ratio gearboxes fitted,the props are 55mm witches hat type,and it has 3 x Electronize 30amp speed cont,it has a really good scale speed running on 2 motors but nearly jumps out of the water when all 3 are engaged,It was scratch built from plans,but not by me,I got it in plain grey,I did the paint job and added the crew,I sail her on a pond near to my home in Edzell,
I have had this boat for about 5 years, so thought that it would like a day out. Sailing at Cwmbran August 2012. its a Billing Polar Trawler, not now made but at about 32 inch long is a managable size. Twin 385 motors 35mm 3 blade brass props. and running on a 7.2 volt 3700 mAh NiMh viper speed controller and a 2.4 Ghz RC it will potter around all morning on one battery. I originally ran it on a 6Volt 4Ah Gel Cell and 27 Mhz setup.
HI Rob if you have an email address that I could use I have photos of the boat, a friend at my club is also restoring one so I have just taken some photos but I could take some more of the areas that you require easily, sadly I do not have a plan myself as my polar was bought on Ebay at least 5 years ago and I had to work from a billing catalogue photo and some photos from old Model Boat Magazines. Hope to hear from you if that will help.
Graham
Thanks so much for getting back my email is PM only - Admin. Any advice or extra pics would be great I really appreciate it. I will upload a pic of the boat at the weekend and show everyone the PROJECT 😯
Thanks Don for your comments, My hovercraft is scratch built,the skirt is unique because it has no holes for lift, the lift comes from slots under the hull, making it fast on land and water. Was that you travelling south on the M6 motorway with your craft Sat 8th?
This is the third craft I built and this was test day went very well on both land and calm sea now resides in South America giving tourists rides.It is powered by a 110hp KawasakI 600 Ninja engine for thrust and a 13hp B&G for lift.
