Search found 5 matches

by Lars Hansen
Mon Apr 17, 2017 7:22 pm
Forum: Technical - Engines and Boilers
Topic: the miracle of engine starting?
Replies: 14
Views: 14123

Re: the miracle of engine starting?

There is an article in Funnel No. 125 from 2005 named "Problems manoeuvring compounds", by Brian Smith. Maybe this could be of any held. Send me an email on lars@hjelm-hansen.dk and I will send you a copy. We had the problem on the Danish tug boat S/S Bjørn that the engine locked-up during manoeuvri...
by Lars Hansen
Thu Mar 30, 2017 6:27 am
Forum: Technical - Engines and Boilers
Topic: My project; steamboat 'Johannes' / Stuart 6A
Replies: 4
Views: 6148

Re: My project; steamboat 'Johannes' / Stuart 6A

Hi Kees, As I am still building on the engine, I haven't had the opportunity to test it yet. But I'm pretty sure that the engine will produce more power when vacuum is applied to the LP cylinder. With a 80% vacuum, - 0,8 bar, that will be about 10 procent of the total pressure drop over the engine, ...
by Lars Hansen
Fri Mar 24, 2017 8:35 pm
Forum: Technical - Engines and Boilers
Topic: My project; steamboat 'Johannes' / Stuart 6A
Replies: 4
Views: 6148

Re: My steamboatproject / Stuart 6A / Semple VFT40 steamboil

Hi Kees, Have a look at my post in the section Members Websites and Boats / S/S Martha - and see photos in the SBA boat register. I have done different calculations and looked at data from other boats I have travelled, as well as got information from Funnel magazine articles from the last 17 years. ...
by Lars Hansen
Sat Mar 11, 2017 12:00 pm
Forum: Members' Websites and Boats
Topic: S/S Martha
Replies: 3
Views: 7805

Re: S/S Martha

Thanks gents! I'll keep you posted on the progress.
Nice boats you have - and good videoes! It's nice to get some inspiration.

Regards Lars
by Lars Hansen
Wed Mar 08, 2017 9:26 pm
Forum: Members' Websites and Boats
Topic: S/S Martha
Replies: 3
Views: 7805

S/S Martha

Hello steamboaters! Time to give an introduction to my steam boat project which have been going on since 2008(!) At that time I would defenitely have thought it would have been finished by now - but that is possibly a story most of you can recognise. The text below is largely a copy of what is writt...