Wednesday, 6 May 2020

A FINE NEW STEAMER.

A recap post from the beginning of this blog.

The Daily News, Perth, Monday 15 February, 1909.

A FINE NEW STEAMER

THE S.S. KOOMBANA.
BUILT FOR NOR'-WEST TRADE.
A MODEL OF STYLE AND COMFORT, .

As stated In our columns of Friday,
the Adelaide S.S. Co.'s new steamer
KOOMBANA, which arrived in port
from London on Thursday, and left
again on the following day for Adelaide 
and Melbourne, 'has been specially built 
for the Nor'-West trade. She has been 
specially designed for the tropics.' Such 
were the words addressed by Mr. S. T. 
Maxfield, the superintendent of stores 
for the Adelaide Co., when showing a 
'Daily News' representative over the vessel.
The Koombana is a steel screw
steamer, of 3760 (3,668) tons, and was 
constructed by Messrs. A. Steven and
Sons, Ltd., in their yard, Linthouse
(Glasgow). Her principal dimensions are: — 

340ft, .between perpendiculars, by 
48ft. 2in. beam, by 
20ft. 8indepth (draught).
25 ft. 8 in. depth of hold.
29 ft. 6 in. depth of hull.
900 tons ballast tanks.

She was constructed under the
British Corporation shelter deck rules
as an up-to-date cargo and passenger
steamer, carrying first and second
class passengers, and a large of number
of cattle, as well as a considerable
amount of general cargo

Shelter deck, by definition, is 'the upper deck having no protection from the weather, but
sheltering the deck below'. The spar deck is the 'highest steel deck extending continuously throughout the full length of the ship'. In the case of Koombana a confusing 'misnomer'.

In every respect, the builders have paid 
the fullest attention to ventilation and light,
thus doing away with that element of stuffiness 
so apparent on some of the passenger boats.
So particular, indeed, has the company been 
in order to allow passengers to overcome the 
heat of the Nor' West, that actually six decks 
are built one on top of the other. Undermost, is 
the lower hold, where the cargo is reposited 
and which is set aside for refrigerating space
On top of this is the Orlop ('tween) deck; then comes 
the main deck (spar) , on which the cattle are placed 
(fore and aft). Next is the spar deck (lower promenade)
where a  great number of cabins are positioned, and on 
top of this is the hurricane (upper promenade), and then 
boat (bridge) deck. Yet, again, on top of this is the 
navigation bridge, which is open for first-class 
passengers. it will be seen that the decks occupied 
by the passengers are situated far up from the water
and the extremely plentiful ventilation provided 
and the numerous electric fans that are to be 
seen everywhere, make it possible to be cool 
in any circumstances. She is capable of 
accommodating 300 passengers, in a style only
to be looked for in such mammoth liners as the 
Mauretania and Lusitania,
Clearly careful thought went into the construction of Koombana with important attention
given to keeping passengers cool in the extreme heat of summer along the Nor'West coast.
Was there a price to be paid for 6 decks, one upon the other? Could the navigation deck
could be considered a seventh?



courtesy ANU archives, Australia.

Perhaps the most interesting fact in
connection with the new boat is that she
has refrigerating machinery on board
capable of dealing with about 800 tons,
besides which she has her own ice-making 
plant aboard— an innovation that should 
prove very acceptable when the Koombana 
visits the torrid Nor'-West. As is usual In the 
Adelaide Company's boats, arrangements 
for the shipping and discharging of cargo 
are very modern and complete.

1,000 ton capacity for general cargo. 
She is replete with hydraulic cranes,
except at No. 1 hatch, where, owing to
the position of passengers' berths, it
has been deemed inadvisable to erect
a crane. The pressman, first paid a visit 
to the captain's bridge, where his eyes 
were opened as to the advance of 
maritime invention and ingenuity. 
The most remarkable of these innovations
is the telephone switch, which connects
the bridge with the captain's cabin,
the poop, and the engine-room. This
telephone is used in case of emergency,
or when the officer on the bridge wants
to be more explicit in his orders to the
engine-room. For instance, if he
wanted to give the orthodox order
'Full speed astern,' it would not be
sufficient for him to indicate the danger 
the vessel was in. He could on the 
Koombana, however, just telephone 
down to the chief engineer and give 
him an order such as 'Give her all you 
can.' Then there is a telegraph on the 
bridge, which is used to communicate 
with the officer in charge, aft, when the 
vessel is about to moor, and in case of 
the steering gear going wrong there is 
also a telegraph which communicates 
with the man in charge of the patent 
wheel aft.
Another interesting change on the
bridge is the establishment of a 
portable chart table in a glass, which 
can be carried into any position. Two
electric sidelights are on the starboard 
and port side of the vessel, but in case 
of anything going wrong in either an 
auxiliary one has been built on or 
running down on either side. Perhaps, 
to a lay mind, the most interesting portion 
of the ship's electrical effects is the erection 
of four discs in the wheel-house. Should 
anything go wrong with the masthead light, 
the side light; or the bridge lights, a colored 
flame flares up in the respective discs; should
no attention be paid to this flame an electric 
bell rings in the disc, and the damage is 
ascertained exactly six seconds after it has 
happened.

This was the latest in technology. However, how reliable was this complex system, and in
particular during an evolving disaster at sea?

All the first-class staterooms are constructed 
on the Island system, each division having a 
separate entrance from the deck, while easy 
access is obtained to the saloon. Electric fans
are fitted in each cabin. The drawing and 
smoke rooms are located on the promenade 
deck, and both are handsomely appointed.  
At one end of the social or drawing room is 
an elaborate bookcase with mullioned frames 
and bevelled glass, and containing an up-to-date 
library, and Broadway piano, two Chippendale 
writing desks, occasional tables, electric fans, etc, 
are also included in the furnishings. The ceilings 
are composed of white painted canvas with gilt-edged 
floral design. The main entrance to the saloon Is 
handsomely panelled in mahogany, and the stairway 
leading to the promenade deck is of the same 
material, with carved pilasters. The dining-room 
in the first saloon has seating accommodation for 
75 people. It is roomy, and well ventilated, and the 
oak panellings and green upholstery, give a quiet 
but withal pleasing effect.

Ample bathroom and lavatory accommodation 
is provided, and, generally speaking, the fittings
throughout are of first-class description. On the 
main deck, running fore and aft of the vessel, 
excellent provision is made for the carriage of live
stock—an important branch of the Nor'-West trade. 
Besides the ordi-chambers (holds) are fitted up with 
capacity of 1,800 tons. of cubic space. With the
exception of one steam crane at the No. 1 hatch 
for'ard, all the cranes are worked by hydraulic power.

1,800 tons is realistic and compares favourably with the similarly-sized Yongala. Not 4,000
tons, quoted in other sources.
The Koombana was brought out to
Australia by Captain J. Rees, late of
the s.s. Bullarra, and he will retain
command of the new vessel. The
steamer left for Melbourne on Friday
afternoon to be docked. She will
return to the West, and leave Fremantle 
on her initial trip to the Nor'-West
on March 12. 

Not the least interesting item in 
connection with the appointments 
of the boat is the carrying of a motor
launch. This craft is to be used when
the Koombana misses the tide at
various Nor'-West ports, and she will
be sent ashore if necessary.

'I want,' said Mr. Moxon to a
'Daily News' representative, 'to 
refute the suggestion that the 
Koombana will be found too good 
for the Nor'West trade, and taken off.
She was built expressly for that 
purpose.'

What an intriguing statement. 

- The Nor'West trade was not smart enough to warrant Koombana?
- Koombana was an unnecessary extravagance?
- Would not be cost effective?

Clever advertising ploy - reverse psychology - drawing all the right attention to the new steamer....

The landscape of Western Australia was changing and in particular the successful cattle /
sheep ranchers and 'pearlers' had significant, disposable cash. These were wealthy people
who relished spending money on this new extravagance.


SS Koombana - courtesy Philatelic Database
note how high out of the water she was. Furthermore, note the significant cattle loading doors not secured in this photo and which presented a significant portal for water ingress.

The Mercury, Saturday 30 March, 1912.

'she was built to attain a speed of
14 1/2 knots.'

The Sydney Morning Herald, Thursday 24 December, 1908.

Her engines, also supplied by the builders, and a 
set of Babcock and Willcox water-tube boilers will be shipped 
at Princes Dock. The refrigerating machinery on board has 
been supplied by Messrs. J. and E. Hall, Ltd., London. A
Clayton fire-extinguishing and disinfecting installation
has also been fitted. Seven sets of Welin quadrant
davits have been fitted. The vessel was named by
Mrs. S. Elgar of Brisbane, wife of one of the company's
superintendents in England.


Wikipedia:

Tonnage:3,668 GRT
Length:340 ft 1 in (103.66 m)
Beam:48 ft 2 in (14.68 m)
Draft:20 ft 8 in (6.30 m)
Installed power:4,000 ihp (3,000 kW)
Propulsion:Inverted steam engines
Crew:74

More accurately, 3,000 ihp.

Externally the Koombana strikes the observer as a
magnificent vessel, well-proportioned, symmetrical
and with the lines of a fine seaboat, which the voyage
out from Glasgow proved her to be without doubt.
A feature is her double-cased funnel with a bonnet cap
(similar to Yongala, built into the vessel). 
Compared with the Yongala, the new steamer is 12 ft.
(10 ft.) shorter (Yongala, 350 ft.), but has 3 ft. more 
beam. 



SS Yongala - courtesy State Library of Victoria, Allan Green collection

SS Yongala - courtesy wikipedia



....a most ornate dome goes through the lady's drawing
room and other light is obtained by Stone's patent ports.
The drawing room is of dried sycamore and satinwood,
with purple moquette upholstery.

...the promenade deck is 220 ft. long. At the after end of it is 
the smoking room, in oak and scarlet peganoid seats. It is 
fitted with a bar, lavatory and bathroom and writing desks. 
The bulk of the first-class cabins are situated on the spar deck
but a number have been provided on the promenade deck.
Their great feature is their roominess, alleyways on both sides, 
their large ports and electric fans in each berth. There is 
accommodation for 100 passengers in the first saloon
and for 130 in  the second-class accommodationwhich 
is situated right aft. The latter saloon is of oak panelling, with 
teak  pillasters and teak dado. A smoking room is also provided 
and the the sleeping berths are well up to the standard.

The Koombana's engines are of the triple expansion type,
with cylinders 28, 46, 77 in. by 51 in. stroke, and steam is 
provided by four of Babcock and Willcox's water-tube
boilers, at a working pressure of 223 Ib. to the square
inch. On her trials the steamer attained a speed of 14.6
knots over a distance of 100 miles.

Compared with Yongala:

The propelling machinery for the vessel
consisted of a set of triple-expansion engines,
built by the Wallsend Slipway and 
Engineering Company, Ltd. the cylinders
are of 32, 51 1/2 and 84 inch diameter
respectively with a stroke of 54 in. which
can supply steam at a pressure of 180 Ib.
per square inch.


Yongala was a faster steamer which seems to correlate with the comparative
dimensions of respective cylinders.

The Koombana carries a large general cargo on a 
comparatively light draft, beside 300 head of cattle,
for which there is special provision on the main deck.

Reduced draught acknowledged.

Why comparison with Yongala? Yongala was also considered inherently top heavy, requiring additional ballasting and which disappeared in a cyclone off Queensland, almost exactly a year prior to the loss of the Koombana. See:

http://yongalarevisited.blogspot.com/


The Argus, Melbourne, Friday 19 February, 1909.

NEW STEAMER KOOMBANA.
DUE TO-MORROW.


It may be safely said that steamers for the Australian
coastal trade are being built continuously in Great
Britain. The Koombana of the Adelaide Steamship
Company line which is due here tomorrow, makes
the third new steamer to arrive here within three
weeks, the others being the Kapunda of the Melbourne
Steamship Company line and the Eumarella, of the 
Howard Smith line. The Koombana, which is intended
for the service on the Northwest coast of Australia, has
already made calls at Fremantle and Adelaide, the 
object of her visit to Melbourne being to enter dry-
dock for an overhaul. She will afterwards return to
the north-west, and enter upon her duties there.

Captain John Rees, an old identity of the Adelaide Steamship 
Company, is bringing the Koombana to port, having gone to 
Scotland some months ago to superintend her construction. 
He reports that the vessel left Glasgow on December, 29, 
during a severe snowstorm, and after 36 hours delay at 
Greenock awaiting snowbound passengers, a start was made 
at 7 am on the 31st. Fine weather was met with on the run down 
the Irish Channel, and across the Bay of Biscay. Las Palmas 
was passed on January 6, and Cape Verde on the 9th, the N.E. 
trade wind being carried down to the sixth parallel. The equator 
was crossed on the 13th and light S.E. winds were met with until 
within three days of Cape Town, when strong headwinds and 
heavy seas considerably delayed progress. 

It appears from the information given that Koombana averaged 13.5 knots
between Las Palmas and Cape Verde. This was a reasonable average, taking
the cost of coal consumption and range into consideration - a more realistic
operating speed.

Cape Town was reached on January 23, and after embarking 
passengers, Koombana sailed the following day, arriving at 
Durban on the 27th.

The average of 13.5 knots was maintained for this leg of the voyage as well.

Here a large number of passengers joined, and departure was
made on the 28th. Fine weather prevailed down to the 27th
parallel. The Koombana passed close to Amsterdam Island
on the 5th inst; and the whistle was sounded, but there was
no sign of human life on the island. From thence to Fremantle
strong southerly winds and heavy beam seas were encountered.
The Koombana was not driven at full power on the run out, but
average over 13 knots from Durban.

Interesting to note at this early stage that Koombana managed heavy beam
seas and strong southerly winds, without incident. One assumes that all
ballast tanks were full and we do not know how much dead weight cargo
was stowed in her lower holds, but was probably significant.... 

Her sea-going qualities proved to be exceptionally fine.
Captain Rees has with him the following officers:

Chief - H J Clark
Second - J Birch
Third - S J Nelson
Purser - D B Reid
Surgeon - Dr R M'Nair
Chief Engineer - J R M'Donald
Second - W J Shimmons
Chief Steward - A E Smith.


A typical shelter deck - courtesy Gjenvick archives.

SS Koombana - courtesy wikipedia - note prominent top hamper and funnel.

same davits as fitted to Titanic.
courtesy Trove.

COORDINATES CONCLUSION.

I believe Koombana lies somewhere within the illustrated radius from central, given coordinates.


Oil patches were used to localise steamer wrecks.

An example is the Clan Ranald:

https://waratahrevisited.blogspot.com/2016/03/clan-ranald-fascinating-account-and.html

"direct me to the spot where the wreck was sunk, 
which he said he knew exactly, having seen 
streams of oil rising from her."


Daily Commercial News, 14 May, 1912.

Going back to the question of the
search for the Koombana the witness
(captain Upjohn) remarked that in 
latitude 19.11, longitude 119.25, about 
27 to 37 miles from Bedout Island, one 
evening they saw what looked like a 
portion of the deck of a vessel, but it 
proved to be the shape of a ship outlined 
by an oily substance such as would rise 
from a sunken vessel, floating on the sea.


I firmly believe that the above oil patch represented the final resting place of RMS Koombana. Of course the difficulty has been working out exactly where that spot is. There are many examples of historical coordinates notorious for inaccuracies.

Captain Upjohn, according to this press report, was unsure of this exact position, quoting a huge range of 10 miles; 27 - 37 miles.

The 1864 James Martin chart showed a 10.5 mile deviation between the true and charted positions of Bedout Island (see image), which approximates captain Upjohn's 10 mile uncertainty. 

This phenomenon, in part, could be due to:

 "a number of highly magnetic undersea iron ore bodies."

"These ore bodies are of such magnitude that when the survey vessel HMS Penguin reexamined 19th-century survey reports from HMS Meda, it experienced compass variation of up to 55° and dip to 33° (Lecky, 1920: 30)."

(The Searches for SS Koombana, Kerry Thom) 





There is a different way of looking at this conundrum and an important correction to be made.

Captain Upjohn informed the Inquiry that his crew found a section of starboard motor launch bow planking with Adelaide Steamship Co insignia the following day at a position, 19 15 S, 119 06 E. He referred to this discovery being about 20 miles from the 'oil patch'. In reality it was 18.4 miles from his given coordinates, which in turn were 30 n miles (30.67 degrees) from Bedout Island.

"The other articles were picked up 
about 20 miles from there."

HOWEVER

'the captain of the s.s. Bullarra had 
arrived at Cossack and reported that 
he had picked up, about 20 miles to the 
north of Bedout Island, one of the Koombana's 
boats with the company's crest on it and a
quantity of smaller wreckage." Mr. Moxon 
says that the Bullarra did not pick up a 
ship's boat, at all, but only the bow of a 
boat.'

In reality the launch bow plank was 20 miles north of Bedout Island, correlating with Captain Upjohn's log coordinates (19 15 S, 119 06 E)

Therefore, Captain Upjohn had a far better idea where Bedout Island was in relation to his ship and the various wreckage discoveries than is implied by the quoted "27 to 37 miles".

Why would Captain Upjohn have created confusion by claiming the oil patch was 27 to 37 miles from Bedout Island when clearly it was '30 miles', and yet demonstrate that he was capable of establishing coordinates positions with minimal, if no, deviation?

The answer to this, in part, can be derived from the Inquiry transcript which in turn illustrates the potential inaccuracies in newspaper reporting. The following extract is drawn from the Koombana Days online site, a truly helpful resource:

IN THE MATTER OF THE NAVIGATION ACT 1904.
and IN THE MATTER of an Inquiry into the circumstances attending the loss at sea between Port Hedland and Broome whilst on a voyage from Fremantle to Derby via Ports of the S.S. "KOOMBANA" on or about the 20th March 1912.
April 25th 1912.
BEFORE: E. P. Dowley Esq. R.M. (presiding)
Captain F. L. Parkes ) Assessors.
Captain J. W. W. Yates )
THE CROWN PROSECUTOR (Mr. F. PARKER) appeared to represent the Chief Harbor Master, Captain C. J. Irvine.
MR. MOSS K.C. appeared to represent the Adelaide Steamship Company.
[Upjohn testimony p1]

Mr. MOSS. When you were searching for the wreckage of the "Koombana" did you notice any oily substance floating on the surface?

- Yes.

Please tell the Court?

- It was in latitude 19.11 and 119.25 E.

What distance would that be off Bedout Island?

- About 27 or 28 miles - I cannot say which.

Did you take any samples of this oily substance?

- Yes, two or three dozen bottles.

What depth was there at this place?

30 or 35 fathoms. 55 m - 64 m (mean 59.5 m / 195 ft.)

Did you see any trace of the vessel at that depth? There would be nothing to indicate that the Koombana or any other vessel would be there?

- It was getting dark and it looked like the outline of a vessel. The Chief Officer said "It must be one of her decks," I said "No, the decks would not look like that." I could see no more. The engines were stopped and we drifted about 4 miles."

What was the stuff in the bottles?

- Oily, greasy water.

Have you any idea as to how that came there?

- It looked as if it came from a wreck.

There would be stuff on a ship to make this?

- Yes.

Where are these bottles?

- At the Company's office.

We will produce these if desired.

Mr. Dowley. You saw this at dusk?

- Yes.

'It looked like the outline of a vessel' does not come any more graphic or compelling than this!!

Captain Upjohn referred to the oil patch being 27 to 28 miles (not 37 miles). His coordinates, however, indicate a position 30 miles from Bedout island, a greater 2 to 3 mile uncertainty factor. 

Why? 

Reluctance to be the one pin pointing the site of the wreck of Koombana? Magnetic ore in bedrock interfering with compass readings and dead reckoning?

But Captain Upjohn goes on to answer the most telling question of all, 

"what depth was there at this place?"

"30 or 35 fathoms."

If one examines the navigation chart for Bedout Island (see link below), only when plotting a position to the northward of the coordinates, 1.85 miles, bearing 2.55 degrees, does one get an average depth between 30 and 35 fathoms = 33 fathoms; 200 ft.; 61 m.

This region of seabed is predominated by sand.

But the conundrum does not end there...

The navigation chart lists minimum depths (tidal variation, 30 to 35 fathoms) which suggests that we must look for Captain Upjohn's 30 fathom mark in the vicinity of his coordinates. This stretch of sea experiences tidal variations of up to 10 m (+/- 5 fathoms). 

When Upjohn made his discovery of the oil patch, dusk 2 April, this was one day after the full moon, i.e. high water springs, which in turn reinforces sounding fluctuations, 30 - 35 fathoms. 

30 fathoms is 180 ft (54.8 m).

Referring to the image below we see that there are 3 options for this depth in the vicinity of the original oil patch coordinates, the depth of which is 164 ft. (50 m; 27.3 fathoms).

The far bottom right figure of 180.4 ft. (55m) is 27.5 miles, bearing 45.38 degrees from Bedout Island, which is the closest we get to Captain Upjohn's estimate of 27 to 28 miles from Bedout Island.

The upper 187 ft. mark is 30.9 miles from Bedout Island, which is well beyond Captain Upjohn's 27 to 28 miles estimate and 7 ft. deeper.

The 180.4 ft. mark to the left is only 25 miles from Bedout, short of the 27-28 miles.



courtesy i-boating




courtesy i-boating, navigation charts.



27.5 miles = 19 15 51 S, 119 26 48 E
25 miles = 19 12 19 S, 119 17 22 E

If we are to nitpick given that Captain Upjohn's coordinates are basic in terms of omitting 'seconds' we can extrapolate an outer range for the original coordinates with a bias towards the 27.5 mile mark = 1.25 miles deviation. 

Therefore, the 27.5 mile mark can be considered to be either 4 or 5 miles from the original coordinates.

"The engines were stopped and we drifted about 4 miles."





What is fascinating is that the bow plank etc discovered '20 miles' north of Bedout Island is 19.7 miles from the 27.5 miles position as per image below, rather than the 18.4 miles to the original coordinates. Captain Upjohn referred to it being 20 miles. He also referred to the bow plank etc. being 20 miles north of Bedout, which it WAS!! 

How close can one get!!!!





It does seem progressively compelling that the position marked 27.5 miles could very well be our target of interest - a resting place for the steamer Koombana; a section of seabed predominated by sand rather than coral and shells (not a target for pearlers or incidental discovery).

Also note that the bow plank etc is almost due west of the 27.5 mile mark - within the parameters of the post-cyclone westward trending current. 




It is interesting that Captain Upjohn decided to collect as many bottles as 'two to three dozen' stressing the importance of the find and that the bottles, according to the outcome of the Inquiry, stayed at the Company's offices.


No guesses as to why this site, 130 + miles from the centre of the cyclone (90 miles diameter) was not actively pursued by sweeping the vicinity with a 'wire' to confirm the presence of the wreck.


If we take a closer look at the distribution of wreckage discovered (1 - 11), there is further compelling reason to pursue this potential site of the wreck of the lost RMS Koombana:


Important to note that Captain Upjohn discovered a spar awning and plank close to the oil patch coordinates, in effect the true starting point.


Recent vessel activity in the 'zone of interest' has attracted my attention and could, potentially, ultimately, reveal the final resting place of RMS Koombana.


During March (2024) there was a great deal of vessel activity in the zone of interest surrounding Captain Upjohn's coordinates (marked one to thirteen on image). According to 'vesselfinder' these were reported as fishing vessels but after some investigation it appears that these vessels were in fact allegedly connected with the gas and oil industry. One hopes that during these activities any sonar anomaly(ies) discovered on the seabed would be shared and possibly, ultimately indicate the final resting place of Koombana.




courtesy:

https://3denergi.com.au/projects/offshore-bedout-wa/


There is a further option depending on the 'steamer track':


The steamer Albany, 1898:

"At noon on Friday Bedout Island was passed about 6 miles out."

If we are to return to speculation, it is generally assumed that if Captain Allen had decided to follow the standard course rounding the northern aspect of Bedout Island, given the gale force winds and long rolling seas coming up from the southwest, he would likely have given the island a sensible 10 mile plus clearance (some say about 9.5 miles).

But what if visibility was still good and the worst of the cyclone was bearing down towards Balla Balla some 100 miles to the southwest, he might have done what was described by the extract above, passing Bedout Island '6 miles' out. The risk factor vs. getting as far away from the cyclone conditions as fast as possible, if you will...

If this hypothetical case is true we might need to review the trajectory from a 6 mile clearance point heading towards Gantheaume Light (Broome). An interesting picture emerges of the steamer track Koombana would have followed before disaster suddenly overtook her.




The revised Upjohn quote "27 or 28 miles" could be a significant, 8 miles 'south' of his given coordinates. This is a bearing of 52.26 degrees from Bedout and equates with 53m as per navigation chart.


If this hypothesis has merit, we are looking at a potential search block significantly further south of the original coordinates - some 8 miles, in 53-63m water, depending on tidal variations.

In fact, the wreck might lie significantly to the south of the presumed track and should be factored into future searches.

In the quest to find Koombana NE of Bedout one must also not lose sight of the possible coordinates deviation factor (James Martin, 10.5 miles further out).

All factors considered one hopes that ultimately a broad airborne magnetometer survey will reveal Koombana's final resting place whether she be intact or a significant debris field.