Search found 20 matches

by lucastefanel
Sun Oct 30, 2022 4:25 pm
Forum: Builder's Power Boats
Topic: Aluminium boat building - 25ft fisherman
Replies: 58
Views: 5336

Re: Aluminium boat building - 25ft fisherman

Hi guys, sorry I've been out of forum for a long time but material went 3 times more expensive than normal price so I quitted activities for some months. Anyway, I made some good progress on my boat. First of all I did not installed strakes yet, I focused my efforts on giving a shape of real boat bu...
by lucastefanel
Thu Jul 22, 2021 7:04 am
Forum: Builder's Power Boats
Topic: Aluminium boat building - 25ft fisherman
Replies: 58
Views: 5336

Re: Aluminium boat building - 25ft fisherman

Thanks for feedbacks guys, also very interesting and technical page! So, seems that best idea should be to test boat first, then lift she up again with crane and weld L profiles accordingly with how boat is running on water! Of course, best way to work is now with hull upside down but also i can con...
by lucastefanel
Tue Jul 20, 2021 3:02 am
Forum: Builder's Power Boats
Topic: Aluminium boat building - 25ft fisherman
Replies: 58
Views: 5336

Re: Aluminium boat building - 25ft fisherman

Hi guys, thanks for your feedbacks, these are the replies that i was looking for. Now i'm bit confused about strakes position. My intention is to use Aluminium 6082 L profile 30x100mm Thk 5mm. Is it a good idea to put shorter L side over stingers? in this way longer side will be closer to CL... :doh...
by lucastefanel
Mon Jul 12, 2021 10:23 am
Forum: Builder's Power Boats
Topic: Aluminium boat building - 25ft fisherman
Replies: 58
Views: 5336

Re: Aluminium boat building - 25ft fisherman

Finally i've been able to step forward on my project! Basically the bottom shape is done, lateral chine steps as well, tack welded, i will proceed later on with full weldings. In order to close gap on keel line i will use ceramic for full penetrations welding, actual gap is around 20mm, probably i w...
by lucastefanel
Wed May 12, 2021 2:00 am
Forum: Builder's Power Boats
Topic: Aluminium boat building - 25ft fisherman
Replies: 58
Views: 5336

Re: Aluminium boat building - 25ft fisherman

This is what I am seeing that looks like a hook. I jist did a finger sketch, which is exaggerated the other way...hook will steal performance badly, the boat will be slower and cost more in fuel..sometimes results can be very bad, so please run a string test, some of the pictures have different col...
by lucastefanel
Tue May 11, 2021 5:11 am
Forum: Builder's Power Boats
Topic: Aluminium boat building - 25ft fisherman
Replies: 58
Views: 5336

Re: Aluminium boat building - 25ft fisherman

Finally i had the opportunity to step ahead on my project. I started to install the bottom plates (totally 4 pcs), tack welding and bending giving the right shape on hull. Not so easy, by biceps now are burning but result is amazing! :lol: Initially i putted in position the plates, aft plates first ...
by lucastefanel
Mon Apr 05, 2021 11:13 am
Forum: Builder's Power Boats
Topic: Jeffs FS14 LS
Replies: 899
Views: 3416486

Re: Jeffs FS14 LS

This weekend I finally got around to forming the cockpit radiuss with the curved trim. Looks like all 4 trim pieces will work. This was one of the final steps before I can start painting the deck. 20210405_102149.jpg I also started painting the under deck areas. This is totally backwards, should ha...
by lucastefanel
Mon Apr 05, 2021 3:20 am
Forum: Builder's Power Boats
Topic: Aluminium boat building - 25ft fisherman
Replies: 58
Views: 5336

Re: Aluminium boat building - 25ft fisherman

fallguy1000 wrote: Sun Apr 04, 2021 8:17 pm Why 5083 instead of 6061?
Because all the boat is made by 5083 plates, i use 6082 for profiles.
6061 is more indicated for other use, for example automotive.
5083 is specific marine grade aluminium.
by lucastefanel
Sun Apr 04, 2021 12:01 pm
Forum: Builder's Power Boats
Topic: Aluminium boat building - 25ft fisherman
Replies: 58
Views: 5336

Re: Aluminium boat building - 25ft fisherman

Hello, happy Easter to everybody!! Today i started to mark the shapes for engine bracket on 5083 Aluminium plates. I choosed (actually what i found available in my workshop) 15mm for engine installation plate, 10mm for PS and SB stingers, 8mm for platforms and 4mm for deck and bottom plates, in othe...
by lucastefanel
Fri Mar 26, 2021 11:42 am
Forum: Builder's Power Boats
Topic: Aluminium boat building - 25ft fisherman
Replies: 58
Views: 5336

Re: Aluminium boat building - 25ft fisherman

Hello and thanks for your support!! Here some progress made last week. Actually structure is done and tack welded and now is serving as jig exactly as per wooden building, the only difference is that i will tack weld bottom plates on frames as soon i reach the perfect shape. When i prepared the file...