Flapping inverting foil (patent pending)

Oh no - don't remove the commercial ads. They have been some of the most fun to comment on.

If we didn't have threads like this, I would have to watch more TV. Dont take it away pleeeeze




As far as 'commercial' posts, if they are really good, then they are really useful and interesting.

 

I'll reply to recent comments in next post. Thanks for not throwing in the showel yet

Been tubing on the Delaware river with my paddles. Had a great time but it just wasn't good enough. Now I've got the idea for Frogger III.... and no it's not a rocket, Mr. Scientist! LOL

 

Frogger III almost ready for launch!

 

Found a platform which will work great for frogging!!

 

It's snowing like mad....and I just had to go fishing!
https://youtu.be/p6gnh67cZ8s
NOTE: boat is not patent pending

 

You are just trolling the forum.

 

Well that was 3 hours of my life i'll never get back! Good thing its raining here and i had nothing important to do. I don't know whether to laugh or cry, i have read all 9 pages and still cant believe it went for that long. Frogger you are an interesting guy, at first i thought you were just taking the piss waving a pool scoop with plastic instead of a net in a kiddies pool but then you have all this serious data and examples of other similar ideas,patents etc to make me think maybe you are serious. THEN you tape a stack of little paddles together to confuse me once again!! Experts have given sound advice but you have little interest in what they say. It looks like you have a good fan and possibly a decent fly swatter but other than that i dont see anthing worth patenting. But hey its your money to do what you want with. It has however been very interesting to see some of the youtube links throughout this thread so for that i thank you.
That folding barge from MYARK is super impressive.
So good luck with your fly swatter/hand operated cooling device/dust scoop/multihull propulsion system.

Don

 

Note: the MYarK is not of my making but is indeed a unique platform

The stack of paddles is not my making and not worth it IMO

ok.... let's get the opinions going again

https://youtu.be/scIG-86RMVU

 

Here comes mine: I think that you are nuts.

 

please keep comments focused on the paddles and not the worn out 50+ high performance engine

My assessment of the boat paddle combination:
Comfort: High
Ease of use: High
technical difficulty:low
Speed: medium ( high with younger power source)
stability: high
cost: low
Fun: extremely

After the 6" of 30 degree "heavy" snow fell, I shoveled my 30' double wide driveway and my back hurt for several days. After doing 3 miles in this boat, I was worn out but not in any pain.

here is link to stabilized version (no sea-sick version)
https://youtu.be/OAn14KRvxZU

 

My opinion: Your project is still crying out for a set of Flettner rotors.

 

A couple of hydrofoils could also help.

 

I'll pass on the Flettner rotors and stick with the frogging paddles. I am working on the fins to go along with it but that requires some design testing to make sure that previous "CTQ's" are met

The idea of hydrofoils is definitely in the mix if it can be done with low technology approach. Thinking about ~3 foot foil in front and about a 2 foot section towards the rear (location dependant on kicking access space required) Kicking may not be needed if enough power can come from arms to get up on foils at ~3 knots.

This sportscraft boat works great for the layed back seated position. I am looking at http://bellyak.com/ for a prone position craft utilizing my paddles.

 

The Pogofoil was Parker McCready's second attempt to power a hydrofoil via flapping wing propulsion. As seen above, it wasbeing testedon Seattle's Green Lake in 1990. It weighed about 50 lbs, with a speed of 11 mph, but was only good for a fewhundred meters before the rider would tire.

http://www.aquaskipperuk.com/articles_viewcategory.cfm/ArticleCategoryID/5

Now anyone can fly above the water. A light hopping motion propels the pilot forward while the hydrofoil gives lift and potential speed ofup to 17 miles / 27 kilometers per hour. The AquaSkipper, allows the pilot to propel forward and ride on the waves, devise new tricks and race with others.

AquaSkipper features
Lightweight
Fast, up to 17mph
Easy to learn
Easy disassembly for transport
Lots of fun!


You don't have to been an athlete to use the AquaSkipper, other uses include a personal water shuttle from "ship to shore, ordock." Any way you use the AquaSkipper, users find that it is the most unique product ever made for personal water travel or watersports. Simply stated the AquaSkipper is good, clean fun. In fact it's the most fun you might have on the water.

 

Fishtail Drive PROPELS BOATS

http://blog.modernmechanix.com/fishtail-drive-propels-boats-and-model-planes/#more

FOR ten years, Arthur D. Hill, Jr., a California commercial fisherman, has been observing and studying how the vibrating tails of fish enable them to dart through the water at great speeds. He also noted that birds, with their flapping wings, were still more efficient in flight than the most modern of airplanes with fixed wings. Puzzling out the principles involved, Hill determined to combine the methods of bird and fish, and he has finally developed an odd fishtail drive for Propelling model airplanes, and boats ranging from toy craft up to vessels thirty-five feet in length.