Aces High Bulletin Board
General Forums => The O' Club => Topic started by: Arlo on September 14, 2020, 10:28:17 AM
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(https://scontent-dfw5-2.xx.fbcdn.net/v/t1.0-9/119420031_3602234766504459_729100838244315351_n.jpg?_nc_cat=102&_nc_sid=b9115d&_nc_ohc=xqE9JB_8F40AX89UyK0&_nc_ht=scontent-dfw5-2.xx&oh=8d14d9fe2f897f127a941438908ec080&oe=5F851E56)
(https://scontent-dfw5-2.xx.fbcdn.net/v/t1.0-9/119333122_3602234776504458_3732534170185320554_n.jpg?_nc_cat=100&_nc_sid=b9115d&_nc_ohc=Lft2_j9V-DMAX8-cdZQ&_nc_ht=scontent-dfw5-2.xx&oh=382eb21c03c8e7b373dbf5182dc71f15&oe=5F85AFF3)
September 12, 1624 - The first practical submarine was demonstrated to England’s King James I and several thousand Londoners. Cornelis Jacobszoon Drebbel (1572 – 7 November 1633) was a Dutch chemist, engineer, and inventor. He designed and built the first prototype submarine in 1620 while working for the English Royal Navy. His design was steerable with a leather-covered wooden frame and powered by oars operated through a leather seal. Between 1620 and 1624, Drebbel successfully built and tested two more prototypes, each one bigger than the last. The final (third) model had 6 oars on each side and could carry 16 passengers in total.
The somewhat sketchy records from the time state the submarine stayed submerged for three hours and could travel from Westminster to Greenwich and back (13.4 miles total), cruising at a depth between 12 and 15 feet (4 to 5 meters). Many times, the submarine attracted crowds to the Thames when it was tested. Air was supplied by snorkel-like tubes that were held above the water's surface by floatation devices, enabling the submarine to be underwater for long periods. Under the rowers' seats were large pigskin bladders, connected by pipes to the outside. A rope was used to tie off the empty bladders; in order to dive, the rope was untied and the bladders filled. To surface the crew squashed the bladders flat, squeezing out the water.
Some reports of the time suggest that King James I actually rode in the third submarine on a trip under the Thames in 1626. Though seeming to have the ear and favor of the King, Van Drebbel's invention failed to interest the British Navy despite a development period of 15 years, Drebbels' submarine never got beyond the trials stage. Ironically, three hundred years later, the submarine would become the most feared of all naval vessels.
Sources: Wikipedia and New Atlas.
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Oars underwater.... hmmm sketchy indeed. :)
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Oars underwater.... hmmm sketchy indeed. :)
Pretty easy to make it work, though. You simply turn the oars slab when moving them back. It's an old trick to use on rowing boats as well if you don't want to make noise by letting the water drip or the oar splash.
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It has windows.
Did we have those in 1624? (meaning sealed glass)
Coogan
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Dunno bout the first sub... but I want one of these!
(http://www.hisutton.com/images/WW2-Manta-midget-submarine-cutaway-940.jpg)
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It has windows.
Did we have those in 1624? (meaning sealed glass)
Coogan
The ancient Romans had glass windows about 100 AD so it was no novelty. By 1624 there had been large and complex stained glass windows for several centuries in gothic churches.
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Pretty easy to make it work, though. You simply turn the oars slab when moving them back. It's an old trick to use on rowing boats as well if you don't want to make noise by letting the water drip or the oar splash.
I am a kayaker of many years, I know about paddles and oars. Just sketchy underwater.
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I am a kayaker of many years, I know about paddles and oars. Just sketchy underwater.
I dont think so. It'd be simple to do, in the manner stated previously, or by hinging the paddle such that it actuated and locked in the appropriate manner.
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The ancient Romans had glass windows about 100 AD so it was no novelty. By 1624 there had been large and complex stained glass windows for several centuries in gothic churches.
A guy can learn all kinds of things around here. :aok
Coogan
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My kayak in my camp last week.....
(https://i.imgur.com/JI897E4.jpg)
Dagger Charleston
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Let me help. ...
(https://i.imgur.com/k4be0MU.png)
Shuffler's submarine
:D
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Let me help. ...
(https://i.imgur.com/k4be0MU.png)
Shuffler's submarine
:D
hard to believe it doesn't have a blender.
semp
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hard to believe it doesn't have a blender.
I suspect it does. :D
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Front hatch Cuervo.... back hatch Leroux. Blender mounts behind seat when I go out in it. It was in the RV in this pic. When you camp you have to be more efficient. Only one blender and one emergency backup.
I have three numbers in case both go out on a holiday. I can get one to me within a few hours.
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(https://gloimg.gbtcdn.com/storage/item/6659782095200894976/15944/592c5c263b99.jpg_500x500.jpg)
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Camp?? Looks like a parking lot.
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Camp?? Looks like a parking lot.
Did most all my tent camping when I was young. Have not done any multi day kayak trips in awhile. We carry tents on those and sleep on the banks. Most of those trips we rarely see humans.
When my wife goes with me... she likes her own shower and bathroom. Just a matter of towing the 32 footer along.
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This is the type of 32 footer I'd wanna 'camp' in:
(https://m.sailboatlistings.com/sailimg/m/25706/main.jpg)
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This is the type of 32 footer I'd wanna 'camp' in:
(https://m.sailboatlistings.com/sailimg/m/25706/main.jpg)
It's for sale... go get it.
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My history books back in the day detailed this.
(https://i.ibb.co/j3s3RgY/Turtle-submarine-1776-1.jpg) (https://ibb.co/bNDNJzV)
For some detailed info on the quick reference source.
https://en.wikipedia.org/wiki/Turtle_%28submersible%29
Anything before this will be very skeptical.