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4 posts
Lauriem
Petty Officer 1st Class
Perkasa
This is a 49" Perkasa built from a ply Precedent kit - the build blog is on this site. Videoed from a 46" Fireboat on a lake in Western Australia. Neither boat is running at top speed, which is spectacular but overscale! Both boats have identical brushless motors. Apologies for the video being a bit long, and for the water on the lens, but this is a first attempt and I hope you enjoy the music.
Liked by Brightwork and Sakibian and
4 comments
  • lesliebreameChief Petty Officer 1st Class
    lovely and beautiful boating pond.
  • JCC61Recruit
    Very nice video Lauriem !
    I'm from France and now on the way re-building of the same initialy started 40 years ago (when I was young !) and I would need your experience (if you agree)
    Tell me please if you are OK.
    See you
lesfac
Petty Officer 1st Class
VOSPER PERKASA 49 INCH KIT
This was a precedent 49 inch kit that I made during last year. I wasn't at all Impressed with the kit. The precut plywood parts were cut with knife blade tools and the tools were obviously past their sell by date. The shapes were very poor. if I make another kit I will make a point of looking for a laser cut hit.
Having said that I am pleased with the outcome.
Liked by John2 and rolfman2000
19 comments
  • lesfacPetty Officer 1st Class
    The bit I can't understand is that I was running the boat on 14.4 volts. I did nothing yet it cut out on the lipo at 3.3 volts per cell which would equate to 16.5 volts. if it had been programmed to do this it wouldn't have worked at 14.4 volts. its as if it had auto programmed itself.
  • Dave MVice Admiral
    HI Les
    There are default settings in most ESCs and they change when you select a different type of battery. if you selected LiPo it recognised 5 cells and auto set a 3.3 v cut off. My latest LiPo 5000 suggests a cut of voltage of 3.4 volts so I suggest you look on the battery cover to see the recommendation. The higher power batteries are very low internal resistance and I believe this is why they suggest a higher cut off.
    So yes your observation is correct
ads90
Warrant Officer
1 / 4
Perkasa MTB
I have just completed this model - just waiting for the new prop to arrive along with a flag for the main mast, plus handrail staunchions. it was a Precedent all wood kit and not too Impressed with the materials but you only get what you pay for. I have fitted a Graupner 700 Speed Turbo and a Torpedo 50 Amp ESC. I am powering it with 2 6 volt SLA's wired in series. Overall I think it has turned out not too bad and it seemed to get better the more I worked on it (or is that psychlogical)Tested in the Marine testing laboratory (white bath) and floats OK with no sign of a leak (fingers crossed). Our boating pond will be frozen over at the moment so no real testing can take place yet.
6 comments
  • ads90Warrant Officer
    HI Dave
    Yes, my ESC is a Tornado 50 Amp which is the same as my friend's one - in fact I bought it on his recommendation, however I usually use Mtroniks. Our motors are not the same but both have similar RPM at 12 volt. I have ordered 3 more props of varying sizes and pitch to see how it will perform - had I have seen my friend down the lake in the last few months since I have been building my Perkasa, I might have got the prop right to start with ! I don't think I will get a 'pass' to get down the lake before Christmas so hopefully it will not be too cold and freeze the lake again before I get a chance to try her out.
    Alan
  • ads90Warrant Officer
    Down at the lake this morning. Boat is now complete with hand rails fitted and painted. 40MM 2-blade X type prop fitted and with the batteries moved back she went really well. The bow lifted well out of the water and got on the plane very easily - would not want or need to go any faster.
    Alan
gerry
Master Seaman
1 / 3
what sort of boat.
Hi,all help required ,can anybody tell me what type /make of boat this is ,and can you give me some info as to where I may get plan/bits.I just had it given to me,as well as a Precedent huntsman and require some help refurbishing.
thank you.
gerry
Liked by circle43nautical
7 comments
  • gerryMaster Seaman
    Hi: all sorry I have not responded to your replies regarding the RTTL.nOt been on for a while.So I wish to thank you all for the responses,and all the information.I also wish to thank Micheal R for all the valuable information he has given to me on this boat.Hope to post some pictures soon.many thanks Gerry.
  • modmariner13Recruit
    HI I have the plan from the 1958 model boats mag and can copy it for you

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