I absolutely LOVE this launch (Oberon) and Arlette is quite beautiful and graceful as well. The acceleration is just phenomenal. I've added your video to my favorites
Imagine a society of people, who live in a city (that is similar to Venice), but it’s on the Great Lakes and the people use canals instead of roads to get around. Basically, it’s a society of boaters, and plenty of them use these steam boats. Also, Those Steam boasts can go quite Fast.
I am an Australian living on the Great Lakes region in NSW. I am looking to design an electric launch to be built in stitch and glue plywood. Like others here I am transfixed by the beauty and performance of both of these boats. Would it be possible to get the hull lines for Oberon as I am very interested to see what is going on under the waterline Your assistance would be greatly appreciated..
In theory above 18 mph (or knots, not remember) you can water ski with twin skis. This is the minimum speed required. I really want to see such a video, water ski behind a fast steam launch.
Just for info the V/route L figures are 2.37 for Arlette and 2.74 for Oberon. I think figures of up 3.5 can be achieved fairly economically (assuming sufficient power, light weight and good design) but beyond that it's best to look at planing hulls for better results.
Those narrow hulls has less water resistant and are capable for semi-displacement speed. But again stern sunk into the water as speed increases. Of course you know about the Consuta, the famous 1898 Umpire Launch, she is capable of making 27,5 mph. 50 ft by 12ft something like that. At about 2/3 of length underneath she has a tunnel with smooth entry and end, which prevents the stern sunk and therefore Consuta is an early semi-planing vessel. I have old Classic Boat magazine from 1988 or 1989 with photo of her hull inverted.
@@AntonisHL I know Consuta very well, having been involved with her since the late 1990's and am probably what could be considered her resident engineer. She's 51ft overall and very narrow at just over 7ft beam (even narrower at the waterline as she has a fair amount of flare amidships). A lot of claims have been attributed to her tunnel over the years, such as it preventing squatting or it reducing wash compared with previous umpire launches, however these are unfounded. When designing launches in the past and conducting tow tests I compared hulls with tunnels and those without (simply taping over the tunnel to form a flat run aft) and I found the effects of the tunnel were generally not beneficial and you can get better results without one. However that's not to say the tunnel doesn't give other benefits, it means she can swing a very large propeller without drawing so much depth as the tips of the propeller are well above the waterline (her shallow draft has proven very useful over the years) and the tunnel along with the position of the prop means cavitation is far less likely and she really bites when going ahead or astern. The things that really contributed to her being an improvement over various previous umpire launches was her extra waterline length and her reduced weight (the latter obtained by her revolutionary construction method). Sam Saunders followed Consuta's successful debut with her sister vessel Maritana in 1902 which generally followed the same form but with the improvement of making her even longer at 55ft, he knew what was important.
Would you, or your Father or whoever that older gentleman is, be willing to sell or share the design for the hull of either of these launches? They're both beautiful and fast, I assume Oberon's hull would be easier to construct. I live in the United States so if I ever did build a copy yours would still be unique on your continent. :D I can provide an email address if you're at all willing to help.
Hi John, I wouldn't rule out the possibility, there is already a gentleman in Europe who is building a launch using lines based on Arlette that I supplied him with a while ago. Would be happy to discuss things via email.
As long and narrow as possible and running at full displacement speed. Beautiful.
Ive never heard a steam engine called this, but it really is a...
Remote Combustion Engine.
Amazing how smooth it runs
Dang what a rocket ship that is!
I absolutely LOVE this launch (Oberon) and Arlette is quite beautiful and graceful as well.
The acceleration is just phenomenal.
I've added your video to my favorites
Thanks for the super nice comments! Who wouldn't want to hear that :)
Beautiful lines on that boat.
Would like to see those engines, looked like a triple expansion on the one brief picture and I can hear the one lugger
Imagine a society of people, who live in a city (that is similar to Venice), but it’s on the Great Lakes and the people use canals instead of roads to get around.
Basically, it’s a society of boaters, and plenty of them use these steam boats.
Also, Those Steam boasts can go quite Fast.
I am an Australian living on the Great Lakes region in NSW. I am looking to design an electric launch to be built in stitch and glue plywood. Like others here I am transfixed by the beauty and performance of both of these boats. Would it be possible to get the hull lines for Oberon as I am very interested to see what is going on under the waterline
Your assistance would be greatly appreciated..
My email is phil.york@mpn.com.au
Beautiful.
People should pay you to look at your boat out on that lake.
Incredible fast!!!
Lovely.
it makes me wonder if you could water sport behind a steam launch
Indeed you could, in fact it has been done several times already.
I’ve not water skied behind it myself but have been on OTTO which I believe held a water speed record once.
In theory above 18 mph (or knots, not remember) you can water ski with twin skis. This is the minimum speed required. I really want to see such a video, water ski behind a fast steam launch.
For enjoy, nice toy :)
A displacement hull cannot exceed the 1.25 x square root of its length in feet. But this rule is not applied to such narrow hulls.
Just for info the V/route L figures are 2.37 for Arlette and 2.74 for Oberon.
I think figures of up 3.5 can be achieved fairly economically (assuming sufficient power, light weight and good design) but beyond that it's best to look at planing hulls for better results.
Those narrow hulls has less water resistant and are capable for semi-displacement speed. But again stern sunk into the water as speed increases.
Of course you know about the Consuta, the famous 1898 Umpire Launch, she is capable of making 27,5 mph. 50 ft by 12ft something like that. At about 2/3 of length underneath she has a tunnel with smooth entry and end, which prevents the stern sunk and therefore Consuta is an early semi-planing vessel. I have old Classic Boat magazine from 1988 or 1989 with photo of her hull inverted.
@@AntonisHL I know Consuta very well, having been involved with her since the late 1990's and am probably what could be considered her resident engineer.
She's 51ft overall and very narrow at just over 7ft beam (even narrower at the waterline as she has a fair amount of flare amidships).
A lot of claims have been attributed to her tunnel over the years, such as it preventing squatting or it reducing wash compared with previous umpire launches, however these are unfounded. When designing launches in the past and conducting tow tests I compared hulls with tunnels and those without (simply taping over the tunnel to form a flat run aft) and I found the effects of the tunnel were generally not beneficial and you can get better results without one.
However that's not to say the tunnel doesn't give other benefits, it means she can swing a very large propeller without drawing so much depth as the tips of the propeller are well above the waterline (her shallow draft has proven very useful over the years) and the tunnel along with the position of the prop means cavitation is far less likely and she really bites when going ahead or astern.
The things that really contributed to her being an improvement over various previous umpire launches was her extra waterline length and her reduced weight (the latter obtained by her revolutionary construction method).
Sam Saunders followed Consuta's successful debut with her sister vessel Maritana in 1902 which generally followed the same form but with the improvement of making her even longer at 55ft, he knew what was important.
What a show off.
But what a show!
👍
I thought Greta put a stop to this
Greta? And a stop to what please?
Would you, or your Father or whoever that older gentleman is, be willing to sell or share the design for the hull of either of these launches? They're both beautiful and fast, I assume Oberon's hull would be easier to construct. I live in the United States so if I ever did build a copy yours would still be unique on your continent. :D
I can provide an email address if you're at all willing to help.
Hi John, I wouldn't rule out the possibility, there is already a gentleman in Europe who is building a launch using lines based on Arlette that I supplied him with a while ago.
Would be happy to discuss things via email.