Yet another unknown location

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rjl3
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Yet another unknown location

Post by rjl3 » 22 Jul 2023 00:17

also in western New Guinea. Apparently fairly close to Bula - 1 days sail:

カユメラ

I searched for airports in vicinity of Bula but nothing resembling Ka Yu Me A

Thanks,
Ralph

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fontessa
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Re: Yet another unknown location

Post by fontessa » 22 Jul 2023 01:20

rjl3 wrote:
22 Jul 2023 00:17
also in western New Guinea. Apparently fairly close to Bula - 1 days sail:

カユメラ

I searched for airports in vicinity of Bula but nothing resembling Ka Yu Me A

Thanks,
Ralph
Isn't it? A little far away?
カユメラ.jpg

fontessa
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Berend
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Re: Yet another unknown location

Post by Berend » 22 Jul 2023 08:47

You also have Tanjung Kayumerah at Ternate and Kayumerah near Fak-Fak. Without knowing more details I think the latter is the one referred to.

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Bwrend

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fontessa
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Re: Yet another unknown location

Post by fontessa » 22 Jul 2023 12:59

Berend wrote:
22 Jul 2023 08:47
You also have Tanjung Kayumerah at Ternate and Kayumerah near Fak-Fak. Without knowing more details I think the latter is the one referred to.

Regards,

Bwrend
Thanks. Does "Kayumerah near Fak-Fak" mean "カラス島 Karas Island" ? If so, I think that everything including the tread "K島, ロビ岬 and カラス島" is settled.

fontessa

Berend
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Re: Yet another unknown location

Post by Berend » 22 Jul 2023 13:41

Does "Kayumerah near Fak-Fak" mean "カラス島 Karas Island" ?
Not as far as I know. It is not an island.

Berend
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rjl3
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Re: Yet another unknown location

Post by rjl3 » 22 Jul 2023 16:04

So looks like still unsettled...
The Kajumerah Is that Fontessa posted looks too remote, small and inconvenient.
On the other hand Kokas IS an island and conveniently situated between FakFak and Kaimana. I think that this is our spot.
Berend, interestingly the chart you posted with Kayumerah next to Fakfak - nothing on Google maps has that Kayumerah - only more Fakfak and Danaweria which looks like a suburb of Fakfak.
Ralph

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Re: Yet another unknown location

Post by Berend » 22 Jul 2023 16:28

Since wartime both Fak-Fak and Kayumerah have grown. Now it looks like one urban area but as far as I know Kayumerah is still a seperate village.

Berend

rjl3
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Re: Yet another unknown location

Post by rjl3 » 22 Jul 2023 16:56

oops - I meant to sy that KARAS is an island located between Fakfak and Kaimana

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Akira Takizawa
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Re: Yet another unknown location

Post by Akira Takizawa » 23 Jul 2023 02:19

On the map of Senshi Sosho, カユメラ is shown at the following location. It is most likely the place that the Japanese was calling カユメラ during the war.

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Berend
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Re: Yet another unknown location

Post by Berend » 23 Jul 2023 09:43

That is the same location as Fontessa posted in reply no. 2.

Okuyo Maru and Shonan Maru No. 17 departed Bula on 8 March 1943 and arrived at Kayumerah on 9 March 1943. So the question is could they reach this Kayumerah in the amount of time mentioned.

It would be of interest to see which names are added on this map for the Kai Islands area.

Berend

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Akira Takizawa
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Re: Yet another unknown location

Post by Akira Takizawa » 23 Jul 2023 13:49

Okuyo Maru sailed from Ambon to Ternate in one day. It is almost the same distance between Bula and Kayumerah of Senshi Sosho.

The map of Senshi Sosho is at the link below.
http://www.nids.mod.go.jp/military_hist ... 1%E5%9B%B3

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fontessa
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Re: Yet another unknown location

Post by fontessa » 23 Jul 2023 17:42

Berend wrote:
23 Jul 2023 09:43
Okuyo Maru and Shonan Maru No. 17 departed Bula on 8 March 1943 and arrived at Kayumerah on 9 March 1943. So the question is could they reach this Kayumerah in the amount of time mentioned.

Berend
The upper chart is Okuyo Maru movement record in the 24th Special Base Unit Wartime Diary. Handwritten times are hard to read. However, by referring to the width of the date line in the upper row, it can be inferred that it was a full-day voyage. The below chart shows the rough estimation of the distance between Bula and カユメラ. A black bar is the 50km reference line below the map. Considering these gaps, the distance is roughly 450km. (Later I thought, "She would have taken a course closer to land.") Her sailing speed was important, but I didn't know it. Taki's post found this voyage possible. It means her sailing speed was about 20km/h (11knots/h). I think this is reasonable as a gunboat converted from a merchant ship.

Okuyo Maru.jpg
カユメラ 2.jpg

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fontessa
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Re: Yet another unknown location

Post by fontessa » 23 Jul 2023 18:16

Addition
Below is the relevant part of the New Guinea administrative map. Yellow parts was “Kowiai (Kajumerah)”. But Taki's map shows カユメラ was clearly on land. This belongs to a different administrative district shown with Light Blue parts called "Semimi", but I think that the Japanese at the time may not have paid such attention to detail.

ニューギニア行政区.jpg

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Berend
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Re: Yet another unknown location

Post by Berend » 23 Jul 2023 18:38

Okuyo Maru standard speed was 11,5 knots. As far as I know her maximum speed was 14 knots.
450km is 242,98 nautical miles.
242,98/14 = 17.36 hours
242,98/ 11.5 = 21.13 hours
If she takes a route closer to the New Guinea coast her standard speed is likely not fast enough to arrive within 24 hours at Kayumerah.

Berend

rjl3
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Re: Yet another unknown location

Post by rjl3 » 23 Jul 2023 19:02

yes, within easy sailing distance. Most everything in this area was within one days sail.

The question I have is WHY? no obvious facilities on the island or nearby. just a good anchorage, hiding from allied aircraft, scouting for airbase sites?
Hakko Maru (1,132 tons) also made a trip to Kayumera and then went on to ケクフ. So here we go again - where is ケクフ

Ralph

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