Compass H28 Facts
Hull Numbers
There are 2-3 places you should find hull numbers.
1: On the aft face of the cockpit there is a builders plate. Behind
this is some times found the number and the original owners name.
2: Inside the aft locker on the beam up under the deck either aft
or forward side.
3: On the hull by the prop aperture but this one is usually
covered in anti fouling and is only visible when you scrape back
the hull to gel coat.
Keel Ballast - What are the differences between lead and the
iron punching ballast and how do I find out what type has been used?
Compass Yachts learnt of the use of iron punching for ballast was from
Choy Yachts. So long as the iron punching were properly mixed
(encapsulated) with resin there should be no rust problems. Although
problems with the iron punching ballast are rare isolated
cases do exist.
The iron punchings ballast keels were topped up with a foam concrete mix.
Sometimes the ballast wasn't cleanly poured into the keel so if there are traces
of punchings under the bunks then chances are its not lead.
Compass Yachts did make H28s with lead ballast. These were solely lead with
no iron puchings and the gaps between the lead ingots were filled with resin.
Lead has a higher weight per volume than the iron punchings. Hence less
ballast is required when lead is used. The lead ballasted keels are 150 ~
200 mm lower from the cabin sole than the iron puchings. So if the gap between
the cabin floor and the bilge is significantly greater than other H28s chances
are it is a lead keel.
Another way to check what type of ballast is in the keel is to
drill a small hole say 6-8 mil through the floor of the fiberglass cabin sole
about mid ships and on the centre line. After going through 6-8mil of glass you
will strike either cement (=steel punchings) or resin and or steel or
lead. When finished this hole is simply filled with epoxy filler.
