Author Topic: Yorktown -- Discussion: Questions and Comments  (Read 96656 times)

Maikel

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Re: Yorktown -- Discussion: Questions and Comments
« Reply #525 on: October 19, 2015, 01:46:44 pm »
I'm wondering if everything is OK with the instruments on board.
For the last couple of days the wet bulb temperatures are often, but not always, higher than the dry bulb temperatures.

Some examples:
http://oldweather.s3.amazonaws.com/ow3/final/USS%20Yorktown/vol020of040_jpg_clean/vol020of040_069_0.jpg
http://oldweather.s3.amazonaws.com/ow3/final/USS%20Yorktown/vol020of040_jpg_clean/vol020of040_071_0.jpg

Maikel

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Re: Yorktown -- Discussion: Questions and Comments
« Reply #526 on: October 21, 2015, 09:00:07 am »
Found the following regarding temperature readings.

28-07-1899
# Sudden change in reading due to irregular exposure to sun through hole in awning.

http://oldweather.s3.amazonaws.com/ow3/final/USS%20Yorktown/vol020of040_jpg_clean/vol020of040_078_0.jpg

HatterJack

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Re: Yorktown -- Discussion: Questions and Comments
« Reply #527 on: October 21, 2015, 09:39:49 am »
I'm wondering if everything is OK with the instruments on board.
For the last couple of days the wet bulb temperatures are often, but not always, higher than the dry bulb temperatures.

Some examples:
http://oldweather.s3.amazonaws.com/ow3/final/USS%20Yorktown/vol020of040_jpg_clean/vol020of040_069_0.jpg
http://oldweather.s3.amazonaws.com/ow3/final/USS%20Yorktown/vol020of040_jpg_clean/vol020of040_071_0.jpg

When that's been happening it's been foggy. Fog is what happens when humidity rises above 100%, which can be seen through the wet/dry bulb readings. I didn't look too hard, but it seems that the instances on those two pages at least have been during rolls through fog, so it's not too surprising for the wet bulb reading to be higher than the dry bulb.

Fun fact, similar conditions in areas devoid of impurities in the air (like dust for example) happen incredibly frequently, and are one of the reasons why we can see jet contrails. The impurities in the jet exhaust create conditions suitable for spontaneous creation of cirrus cloud formations as the supersaturated (as it's called when humidity rises above 100%) air then has something for moisture to cling to.

Maikel

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Re: Yorktown -- Discussion: Questions and Comments
« Reply #528 on: October 21, 2015, 09:49:03 am »
Except, though it has been raining and showers have been passing, no mention of any fog in the logs. :)

Also, the higher wet bulb temperatures seem to have stopped when another log-keeper took over.
Misreading of the thermometers, incorrect copying of values, sun shining on the wet bulb thermometer?

HatterJack

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Re: Yorktown -- Discussion: Questions and Comments
« Reply #529 on: October 21, 2015, 09:51:40 am »
Apparently I don't work on the Yorktown enough... that "p" looks a lot like an "f" to me in several places

Maikel

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Re: Yorktown -- Discussion: Questions and Comments
« Reply #530 on: October 21, 2015, 03:10:57 pm »
Happens to the best of us. :D

Maikel

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Re: Yorktown -- Discussion: Questions and Comments
« Reply #531 on: October 24, 2015, 09:01:59 am »
07-08-1899 - Off San Fernando, Philippines

8 A.M. to Meridian.

Sounded call to general quarters at 9:20.
Entered San Fernando harbor and started firing at San Fernando at 9:46.
Stopped firing at 10:08.
Started firing at 10:10.
Stopped at 10:17.
Started firing at 10:30.
Stopped firing at 10:46.
Anchored at 10:55 in 1/4 fms water, veering to 30 fms. port chain.
The following ammunition was fired:- 75 - 6" charges, 63 - 6" common shell, 12 - 6" shrapnel, 66 - 6 pdr. A.P. shell, ~5 - 3 pdr. common shell, 299 - 1 pdr. A.P. shell, 400 rounds 6 m/m Colts gun ammunition.
The U.S.S. Concord, U.S.S. Callao and U.S.S. Pampango engaged in bombarding San Fernando.
The following signals were made:- At 10:40 E. to Y. "They are firing volleys at us between wharf and steamer."
...
Released from confinement during bombardment, H. Humphrey, O.S.

http://oldweather.s3.amazonaws.com/ow3/final/USS%20Yorktown/vol020of040_jpg_clean/vol020of040_092_1.jpg

Appended note:

8 A.M. to Meridian.
Before the squadron opened fire a shot was fired from a field piece on shore, the shot falling short.
This was followed by one or two others, and by musketry from trenches near the beach.
Before the end of the bombardment the shore fire had ceased.
A French flag flying from the home on Eastern side of harbor was respected, no shots being fired in that direction.
After fire had ceased two Companies of troops were seen to march from that locality.
The battery and ammunition in general worked satisfactory.
Three miss-fires occurred with 3 pdr. am., and the port 6" gun of 1st Div. failed to return to battery twice, but afterwards acted well.
The shrapnel charge burst before the time set by the fuze.
The firing was at ranges varying from 1300 to 2300 yards.
The port battery only was used.

http://oldweather.s3.amazonaws.com/ow3/final/USS%20Yorktown/vol020of040_jpg_clean/vol020of040_091_1.jpg

Maikel

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Re: Yorktown -- Discussion: Questions and Comments
« Reply #532 on: November 09, 2015, 08:06:05 am »
Relaxing times at anchor off Victoria, Labuan, Borneo

05-10-1899 - Meridian to 4 P.M.
A party of 28 men attended a garden party at H.B.M. Consuls at 3:30 o'clock.
http://oldweather.s3.amazonaws.com/ow3/final/USS%20Yorktown/vol020of040_jpg_clean/vol020of040_154_1.jpg

06-10-1899 - 4 to 8 P.M.
Entertained the Governor and English residents of Labuan on board.
http://oldweather.s3.amazonaws.com/ow3/final/USS%20Yorktown/vol020of040_jpg_clean/vol020of040_155_1.jpg

07-10-1899 - 8 P.M. to midnight.
Sent party of men ashore to serenade the British Consul.

http://oldweather.s3.amazonaws.com/ow3/final/USS%20Yorktown/vol020of040_jpg_clean/vol020of040_156_1.jpg

jil

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Re: Yorktown -- Discussion: Questions and Comments
« Reply #533 on: November 09, 2015, 09:39:35 am »
 ;D - love the idea of seranading the British Consul

Maikel

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Maikel

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Re: Yorktown -- Discussion: Questions and Comments
« Reply #535 on: November 10, 2015, 01:22:31 pm »
14-10-1899 - At anchor off Cagayan Sulu.

8 A.M. to Meridian:
At 9:30 as directed in the telegram of the Commander-in-Chief dated 3rd of October, 1899, the United States flag was hoisted on the North side of the Island of Cagayan-Jolo, by Lt. Comdr. B.A. Fiske, U.S. Navy, and saluted with 21 guns by the Yorktown.
Mariano de Leon y Legaspi was given a written appointment as United Stated representative in charge of the Island of Cagayan-Jolo, by Commander Sperry, Commanding the Yorktown and the flag was hoisted in front of his house.
Mariano de Leon and several native Datos called on the Commanding Officer.
...
Sent one #8 U.S. Ensign to Mariano de Leon.

http://oldweather.s3.amazonaws.com/ow3/final/USS%20Yorktown/vol020of040_jpg_clean/vol020of040_164_1.jpg

Maikel

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Re: Yorktown -- Discussion: Questions and Comments
« Reply #536 on: November 20, 2015, 09:06:22 am »
19-11-1899 - On passage from Clarendon Bay to Port Royalist (Philippines).

9 A.M. - Barometer unshipped in anticipation of firing.
http://oldweather.s3.amazonaws.com/ow3/final/USS%20Yorktown/vol020of040_jpg_clean/vol020of040_203_0.jpg

No shots were fired.

Randi

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Re: Yorktown -- Discussion: Questions and Comments
« Reply #537 on: November 20, 2015, 12:07:59 pm »
When I take an umbrella it usually doesn't start raining...

Hanibal94

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Re: Yorktown -- Discussion: Questions and Comments
« Reply #538 on: November 20, 2015, 12:42:49 pm »
When I take an umbrella it usually doesn't start raining...

But then on the one day you don't take it... *SPLASH*

Randi

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Re: Yorktown -- Discussion: Questions and Comments
« Reply #539 on: November 20, 2015, 01:06:18 pm »
Exactly :(