Search found 43 matches

by Heimfried
Fri Sep 23, 2022 6:54 am
Forum: Builder's Power Boats
Topic: Woods Skoota 32DM
Replies: 2620
Views: 294184

Re: Woods Skoota 32DM

A frictionless transfer of your boat, all the best!
by Heimfried
Thu Feb 20, 2020 3:53 pm
Forum: Builder's Power Boats
Topic: ST21 'Skinnydip' build, and boating adventures, Noosa, Australia
Replies: 6949
Views: 751682

Re: ST21 Hybrid Powered "SKINNYDIP" Noosa Australia

Hello GB, points you should consider are: - a larger prop pitch means normally to increase the needed torque - that will slow down the motor rpm - the build in cooling ventilator will blow a smaller air stream with less rpm so the cooling effect decreases - the efficiency of the motor will (in most ...
by Heimfried
Fri Sep 01, 2017 4:37 pm
Forum: Forum Software & Site Bug Reports
Topic: Links to european rules given today don't work
Replies: 1
Views: 793

Links to european rules given today don't work

Regarding "Amateur boat building in europe" Jacques quoted Evan and added an own thread on this point. https://forums.bateau2.com/viewtopic.php?f=8&t=29159#p403469 Both links provided don't work (at least on my computer). In an old post from me is a working link to the text in question...
by Heimfried
Thu Jun 15, 2017 10:25 am
Forum: Builder's Small Boats
Topic: Optimist going International!!! - Spain
Replies: 5
Views: 1240

Re: Optimist going International!!! - Spain

gonandkarl wrote: Wed Jun 14, 2017 1:24 am Big question how much are the shipping costs to Europe ?
Maybe this gives you an idea:

https://forums.bateau2.com/viewtopic.ph ... 97#p350943
by Heimfried
Mon Jun 12, 2017 7:20 am
Forum: Builder's Power Boats
Topic: ST21 'Skinnydip' build, and boating adventures, Noosa, Australia
Replies: 6949
Views: 751682

Re: ST21 Hybrid Powered "SKINNYDIP" Noosa Australia

[...] that the in-line bilge blower I was using would vibrate like shit, be noisy, and [...] a centrifugal blower [...] vibrated less and were quieter. [...] Besides the reasons mentioned above a centrifugal blower is to prefer, because it needs significantly less electric energy to move a certain ...
by Heimfried
Sun Mar 19, 2017 10:54 am
Forum: Builder's Power Boats
Topic: ST21 'Skinnydip' build, and boating adventures, Noosa, Australia
Replies: 6949
Views: 751682

Re: ST21 Hybrid Powered "SKINNYDIP" Noosa Australia

Hi Heimfried, When I asked for a quote for the components for the e-drive subsystem, I specified that the e-motor had to be able to handle the radial loads involved. Eco Boats Australia has guaranteed that the supplied motor can. OK then. It's interesting to learn that you are building an electric ...
by Heimfried
Wed Mar 15, 2017 6:41 am
Forum: Builder's Power Boats
Topic: ST21 'Skinnydip' build, and boating adventures, Noosa, Australia
Replies: 6949
Views: 751682

Re: ST21 Hybrid Powered "SKINNYDIP" Noosa Australia

Hello (I plan to start the building of an electric boat in the next weeks, after finishing my shop. Therefore I studied a lot about properties of electric motors.) You are going to use a belt drive to transmit the motor torque to the propellor shaft if I understand right. Tighten the belt means to p...
by Heimfried
Tue Jun 07, 2016 7:02 am
Forum: Sail Boats
Topic: Shipping Lady C.
Replies: 6
Views: 2556

Re: Shipping Lady C.

Maybe the greek customs find the reason for his opinion in greek rules following the Directive 2013/53/EU: http://eur-lex.europa.eu/legal-content/EN/TXT/PDF/?uri=CELEX:32013L0053&from=DE In capter 1, article 2, number 2, letter a, roman number vii : " 2. This Directive shall not apply to th...
by Heimfried
Tue Apr 26, 2016 4:17 pm
Forum: Power Boats
Topic: GV15 COG Mods
Replies: 9
Views: 1169

Re: GV15 COG Mods

jacquesmm wrote: [...]
To give you an example, if a big 200 lbs guy walks 5' forward of the LCG, that is a 1,000 lbs/ft moment [...]
Such a moment should be written as 1,000 lbs * ft. (It is not pounds per feet, but pounds times feet.)
by Heimfried
Sun Mar 27, 2016 7:05 am
Forum: Questions before purchasing the plans and announcements..
Topic: FS13 Skeg question
Replies: 9
Views: 922

Re: FS13 Skeg question

jacquesmm wrote: [...] the longer one will reduce the turning radius [...]
Isn't it the opposite?