-
Welcome to the DeeperBlue.com Forums, the largest online community dedicated to Freediving, Scuba Diving and Spearfishing. To gain full access to the DeeperBlue.com Forums you must register for a free account. As a registered member you will be able to:
- Join over 47,943+ fellow diving enthusiasts from around the world on this forum
- Participate in and browse from over 531,990+ posts.
- Communicate privately with other divers from around the world.
- Post your own photos or view from 7,455+ user submitted images.
- All this and much more...
You can gain access to all this absolutely free when you register for an account, so sign up today!
The Last Great Human-Powered Challenge - Breaching
- Thread starter HJ
- Start date
Thread Status: Hello
, There was no answer in this thread for more than 90 days.
It can take a long time to get an up-to-date response or contact with relevant users.
It can take a long time to get an up-to-date response or contact with relevant users.
To erase this deficit, I've spawned some internet bots to post on Deeperblue in my name precisely just outside the minimum time limit rule that the forum is set to for spam prevention.
I expect my posts to outnumber Fondueset's by noon tomorrow.
And, no doubt, the quality of said posts will be astonishing.
I vow to breach with a vertical launch that clears the fin's trailing edge without any somersaulting shenanigans by Aug 1st of next year. I've started a diet of 10 Liters of raw milk straight from the cow per day with blackstrap molasses for flavor, all so I can pack on the girth in muscle around my core needed to launch into the stratosphere.
Plus, I'm becoming a cone head. Which ought to help.
But seriously, I'm seriously considering this.
I expect my posts to outnumber Fondueset's by noon tomorrow.
And, no doubt, the quality of said posts will be astonishing.
I vow to breach with a vertical launch that clears the fin's trailing edge without any somersaulting shenanigans by Aug 1st of next year. I've started a diet of 10 Liters of raw milk straight from the cow per day with blackstrap molasses for flavor, all so I can pack on the girth in muscle around my core needed to launch into the stratosphere.
Plus, I'm becoming a cone head. Which ought to help.
But seriously, I'm seriously considering this.
A very nice performance in that video. And yes, it is here already.
In openwater it is easier to do (not easy in any case...) than in a pool, because you have longer distance to speed up vertically.
I've seen a live case here in a pool. An ex worldclass finswimmer made it in a pool vertically, it was 4 m deep pool and he got fully out of water. Not so high than in that openwater video. He has so big muscels in legs (and elsewhere) that he has difficulties to find suitable trousers and other clothes, especially when he was a active finswimmer. He uses very hard monofin blades, because he was a short distance specialist (about 8 seconds/25m).
In openwater it is easier to do (not easy in any case...) than in a pool, because you have longer distance to speed up vertically.
I've seen a live case here in a pool. An ex worldclass finswimmer made it in a pool vertically, it was 4 m deep pool and he got fully out of water. Not so high than in that openwater video. He has so big muscels in legs (and elsewhere) that he has difficulties to find suitable trousers and other clothes, especially when he was a active finswimmer. He uses very hard monofin blades, because he was a short distance specialist (about 8 seconds/25m).
Last edited:
The more recent iterations of the lunocet appear to have gotten away from breaching as a design criteria. The first lunocet was reasonably good vertically (when swimming upward) - it bit hard into the water and was a bit like climbing a flight of stairs - unfortunately it also had tremendous drag and was too buoyant, making it exhausting to swim with in all other dimensions. The later iteration that I tested had gotten away from the large, rigid surface area of the original. It was better to swim with but also lacked power when compared to traditional free diving fins. Dave Mullins tested this model also and found it's performance comparable to a pair of duck fins.
Ted has since gone with a thinner, longer and less-wide foil - more similar to that on the proven Dol-fin Orca - though with angled blades. I've not had the opportunity to test this latest model but, while it looks like it may have improved overall performance, I doubt it would match a sprint-stiffness mono fin in the vertical.
Ted has since gone with a thinner, longer and less-wide foil - more similar to that on the proven Dol-fin Orca - though with angled blades. I've not had the opportunity to test this latest model but, while it looks like it may have improved overall performance, I doubt it would match a sprint-stiffness mono fin in the vertical.
Last edited:
what style of monofin would one consider best for this application (very short burst of speed) ?
things that come to mind would be :
obviously super super stiff blade
footpockets that allow the highest transmission of power to the blade (more "flyer" than "glide" style)
low drag and somewhat reduced blade surface
any other ideas ?
things that come to mind would be :
obviously super super stiff blade
footpockets that allow the highest transmission of power to the blade (more "flyer" than "glide" style)
low drag and somewhat reduced blade surface
any other ideas ?
ouch.
Why not human-powered helicopter breach? 1 minute @ 1 m
Gamera 2
The vehicle is an improved version of Gamera I, which last year set world records for flight duration. Like Gamera I, Gamera II is an enormous hand- and pedal-powered X-shaped vehicle that has four rotors and is 103 feet across diagonally. But Gamera II weighs only 71 pounds, an amazing 35 pounds lighter than the previous vehicle, and features enhanced rotor design, an improved transmission and a redesigned cockpit. The team expects that Gamera II is capable of flights lasting longer than 60 seconds, a major step towards competing for the Sikorsky Prize and remaining ahead of competitors. Learn more about Gamera II here: Gamera 2, AGRC, Clark School of Engineering, University of Maryland
Read more here: Clark School Team to Fly New Gamera II Human-Powered Helicopter - PR Newswire - The Sacramento Bee
Why not human-powered helicopter breach? 1 minute @ 1 m
Gamera 2
The vehicle is an improved version of Gamera I, which last year set world records for flight duration. Like Gamera I, Gamera II is an enormous hand- and pedal-powered X-shaped vehicle that has four rotors and is 103 feet across diagonally. But Gamera II weighs only 71 pounds, an amazing 35 pounds lighter than the previous vehicle, and features enhanced rotor design, an improved transmission and a redesigned cockpit. The team expects that Gamera II is capable of flights lasting longer than 60 seconds, a major step towards competing for the Sikorsky Prize and remaining ahead of competitors. Learn more about Gamera II here: Gamera 2, AGRC, Clark School of Engineering, University of Maryland
Read more here: Clark School Team to Fly New Gamera II Human-Powered Helicopter - PR Newswire - The Sacramento Bee