Have been making this for the last six months and it was ready for ‘sea trials’ yesterday. The kit is sold by SLEC here in the UK and is a wooden built up hull. The hull is glassed inside and out and has been painted with spray (rattle) cans - principally primer red and Ford Polar Grey. Still have to make up some of the kits such as the deck guns and hand rails and of course add the torpedoes.
Heartily agree Dave,👍
We've already had one lost shaft on the site this month, for very similar reasons.
I use a locknut and thrust washer at the prop end, and locking collet and thrust washers at the motor end. Max allowed free play 5 to 10 thou.
The collet is locked with a grub screw into a flat machined into the shaft. Screws secured with Loctite.
Ain't lost a shaft yet😊
Did loose a cheap plastic prop from my destroyer once, when I brushed the concrete sidewall of our lake. Was the original fit when I was 15 with only pocket/paper round money.🤔 Replaced with slightly smaller Raboesch brass on both shafts.
No prop losses since😉
Cheers, Doug 😎
Thanks for the kind words folks. Point noted re the propshaft and I will sort that out. At the moment it is not a problem though as the esc is forwards only 😁. The motor mount is solidly screwed down with the four screws and i will keep checking that. The motor mounting plate is strengthened beyond the kit design as I only had a larger motor (from one of my planes) to hand than the kit calls for. With that in mind I have restricted the throttle curve to 70% of full which seems more than plenty for scale speed using a 2200 3s lipo. I will add some more pics as I progress with this one. Regarding the question of the double diagonal planking - it is the forward third of the hull only and the first layer is supported by a series of stringers.
The pics below are of the actual motor I ended up going with (the one in the original build pics turned out to be damaged). Also added a pic of the rudder servo setup.
Nice looking model and looks realistic on the water. I did notice one small point. The connection to the propshaft needs to have the locknut just nearly touching the thrust washer with the coupling locked tightly to the locknut. As fitted the shaft will pull on the motor bearing in reverse and could damage your motor. I am assuming the prop also has a locknut and thrust washer to protect the motor when travelling forwards.
The motor mount looks good and I hope it has four screws holding it in place. I had a similar set up on my small Crash Tender and the screws worked loose and the motor self destructed whilst sailing - fortunately just a puff of smoke and a cooked motor and ESC. I now check all my brushless mounts on a regular basis.
dave976
Excellent Job! That is a slick finish on the painting I couldn't ask for better.
I am really interested in seeing the final fitting out you will have.
Barry
Madre Madonna!!!
Well Made! I havé Made the Perkasa years ago with a polyester hull. But thé sailing was fantastic.
Keep in going strong with New pictures
Is the double diagonal planking just on the forward half of the bottom of the boat ? That's how it looks.
And, is the first layer of planking laid onto a ply sheet ? 😉
I like the finish you have achieved on the hull, well done. That big battery built in seems to be giving you a great performance. Any chance of some photos inside showing your set up. Lovely boat, I think it will be my next build after I have finished the RAF Fire Boat it has only taken 30 years so far!!!!! but getting close now. Pete
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We've already had one lost shaft on the site this month, for very similar reasons.
I use a locknut and thrust washer at the prop end, and locking collet and thrust washers at the motor end. Max allowed free play 5 to 10 thou.
The collet is locked with a grub screw into a flat machined into the shaft. Screws secured with Loctite.
Ain't lost a shaft yet😊
Did loose a cheap plastic prop from my destroyer once, when I brushed the concrete sidewall of our lake. Was the original fit when I was 15 with only pocket/paper round money.🤔 Replaced with slightly smaller Raboesch brass on both shafts.
No prop losses since😉
Cheers, Doug 😎
The pics below are of the actual motor I ended up going with (the one in the original build pics turned out to be damaged). Also added a pic of the rudder servo setup.
The motor mount looks good and I hope it has four screws holding it in place. I had a similar set up on my small Crash Tender and the screws worked loose and the motor self destructed whilst sailing - fortunately just a puff of smoke and a cooked motor and ESC. I now check all my brushless mounts on a regular basis.
dave976
She is looking really good.
Congratulations of a quality build.
Regards Bill.
I am really interested in seeing the final fitting out you will have.
Barry
Well Made! I havé Made the Perkasa years ago with a polyester hull. But thé sailing was fantastic.
Keep in going strong with New pictures
I like the motor’s coupling.
Overall is a magnificent looking and performing model.😎
And, is the first layer of planking laid onto a ply sheet ? 😉
Very nice job.
Roy