Al
Guru
- Joined
- Apr 1, 2012
- Messages
- 2,206
- Location
- usa
- Vessel Name
- 'SLO'~BELLE
- Vessel Make
- 1978 Marben-27' Flybridge Trawler(extended to 30 feet) Pilothouse Pocket Cruiser[
Could a big 6cyl Perkins sitting very low in a 28' trawler style boat be considered as ballast when some boats the same had small 4cyl motors + 300kg ballast ?
I would say yes. It is on the center line. It lays near or below the CG. We replaced our 800# (+-) Perkins 4-154 including 3:1 gear with a 1400#(+-) Perkins 4-236 and 2;1 gear. We had added prior to the engine swap, several hundred # of lead ingots. We felt satisfied at that time with the results. After adding the swapped engine, the stability became even more 'solid' during rolling motion. Solid, like heavy if you can picture.
Al-27'Marben Pocket CRUISER
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