3.2.2
Seakeeping behaviour
- The vessel
was rolling softly in beam sea, but pitching hard in head sea and took over
lots of spray water, the speed had to be reduced in time before green water
was taken on the forecastle (visor).
- The vessel was
reacting sensitively to beam wind, took up quickly permanent heel, e.g. Beaufort
6 - 7 from port side would create a starboard list of 2°- 3°.
- The anchors were
sitting tight in the pockets. No banging was heard when the vessel was pitching
in head seas.
3.2.3
Proceeding through ice
- On the route
from Turku to Stockholm ice is usually met more frequently and longer compared
to the route Tallinn-Stockholm, because the ice inside the archipelago grows
faster and disappears later. If, however, the Gulf of Finland respectively
the Baltic is covered by ice the route Tallinn-Stockholm is much more difficult
and problematic in comparison to proceeding through ice in the archipelago,
because the ice at sea is much heavier and thicker. The ice moves with wind
and/or current, ice channels open and close quickly, wind and current press
the ice floes together and on top of each other, thereby creating ice barriers
of several meters thickness.
- The maximum speed
when proceeding at sea through ice should not exceed 7-8 knots, whereby the
ice pressure on the visor should always be the decisive factor.
- The risk of sustaining
severe damage to the bow area and to the under-water hull, however, is most
imminent if the Gulf of Finland and/or the Baltic Sea are jointly partly covered
by ice and the bridge is manned by inexperienced navigators. The vessel then
quickly picks up speed in free water and subsequently crashes with high speed
into ice fields, thereby colliding with thick and solid ice floes.
- Also SOLAS requires
the early and substantial reduction of speed near ice according to Chapter
V, Regulation 7, a copy of which is attached as
Enclosure 3.2.3.82.
3.2.4
Wave condition
history
In the initial
trading area of VIKING SALLY between Turku-Mariehamn-Stockholm the ferry never
proceeded more than 14 nm from the nearest land, thus never left sheltered
waters. Nevertheless according to Håkan Karlsson, one of the two long-term
masters of the ferry, they experienced a couple of times hurricane force winds
on the way to the Söderarm entrance when they had to hove-to for the safety
of the ferry. Also in her subsequent trading areas in the Gulf of Bothnia
between Vaasa and Sundsvall she met rough weather frequently according to
her long-term chief engineer Lars Karlsson and the engine output was reduced
repeatedly. Upon request of this 'Group of Experts' the Swedish Meteorological
and the Hydrological Institute (SMHI) has studied the available weather and
wave data to find out how often ESTONIA had met at least the same wind and
wave conditions as she did during the casualty night.
The
result is that in the Gulf of Bothnia she has met similar conditions only
once, viz. on 19 December 1992. (For details see Subchapter 12.2.)
3.3
Boatswain Juhani Luttunen
Juhanni Luttunen
had been one of the two boatswains of the vessel from June 1980 to November
1992, while Christer Koivisto had been motorman and "ombudsman" at the same
time.
Luttunen,
who shot Koivisto on 12 June 1996, was interviewed in the prison of Vaasa
by a member of this 'Group of Experts' and has stated the following:
- His function
as boatswain in connection with operating the visor/bow ramp was to stand
at the control panel.
- He explained
the different handles and also the indicator lights. - He remembered clearly
the 2 hooks and 4 bolts of the bow ramp as well as
- the hydraulic
side locks, the Atlantic lock, and also explained that they had never engaged
the manual side locks.
- At some time
probably in 1982 it was realised that the visor was no more closing properly
because it was in a misaligned condition athwartships. He thinks that the
starboard corner was standing a bit up. It was for this reason that the Atlantic
lock bolt could no more move through the visor lug. The matter was discussed
with the engine crew and it was considered what could be done.
- Engine repairman
Koivisto considered himself to be the visor expert and offered to rectify
the Atlantic lock to the effect that the bolt would fit again. Luttunen remembers
that Koivisto was even called back from vacation to do the modification.
- In the presence
of Luttunen and motorman Göran Lindström Koivisto cut off the upper part of
the lugs of the Atlantic lock and took off the bushings. Thereafter he welded
extended parts on the lug remains and the holes in the lugs now looked like
an ellipse, the bushings did not fit any more and were left out as still the
bolt would not go smoothly through the visor lug, which was extending apparently
too much aft or too much forward. In any event Koivisto cut something off
the inside of the visor lug, whereby Luttunen is of the opinion that it was
from the forward part.
After
the repairs were completed they realised at once that it was impossible and
decided to contact the inspector ashore. The poor modification was inspected
and about one week later Swedish speaking people came from the company von
Tell AB, cut off completely all 3 lugs of the Atlantic lock and welded new
ones to the A-deck with bushings inserted.
He believes also that it was then realised that there was something wrong
with the hydraulic, which was adjusted. The visor lug remained - as far as
he remembers - unchanged, i.e. should still be the original.
When the repairs were completed the von Tell people expressly prohibited Koivisto
or anybody else on board to ever manipulate the Atlantic lock again.
The complete interview
is attached as Enclosure
3.3.83.
The statement of
Juhani Luttunen that the Atlantic lock was replaced sometime in 1982/83 by
Swedish speaking people, most probably from von Tell AB, was basically confirmed
by Captain Håkan Karlsson having been Master of VIKING SALLY, SILJA STAR and
WASA KING since commissioning of the vessel in 1980.
Note:
Before
a respective statement could be drawn up and signed, Håkan Karlsson passed
away on 14.03.97 due to cancer.