Author Topic: Swim Missiles  (Read 35511 times)

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Re: Swim Missiles
« Reply #210 on: July 15, 2023, 06:33:37 AM »
Yesterday I moved the pod down into efoil mode, just above the mast.  Pretty cool.  I love that the pod (and power) doesn't come out of the water unexpectedlly and the power is constant but man does it force the nose up in that position.  I don't have a lot of tools to counter that.  I spent most of the hour (1 battery) figuring that out.  I think I need a gel pad of some sort to allow about an inch of movement.  I can't really slide fore/aft on my current pad, although I need to.  Lots of low foiling on the Falcon and really fun.

The Falcon foil, fuse and infinity tail are still holding up, even with the soon to be improved fuse joint.  No signs of stress yet.

Chan winged on the little red foil (the smallest member of the modular system) with an Infinity tail and her small swim missile.  That was cool to watch.  She flew it across the river a number of times, although that narrow (17 inch board) looked super challenging on the surface.  That foil may be really fun as well but it looks like it could also benefit from the new fuse joint and a larger stabiizer.  So far she  found the Falcon mnuch more consistant and easier to use.  We are definitely bringing the weird.  :)
« Last Edit: July 15, 2023, 08:24:56 AM by Admin »

Dwight (DW)

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Re: Swim Missiles
« Reply #211 on: July 15, 2023, 12:33:21 PM »
……but man does it force the nose up in that position.

Yeah, it’s a shit show standing too. Everyone compares remotes in the powered foil world. The smoothest trigger and control wins.

Some e-foil brands seem to be way better at a more natural trim, with less wheelie.

I’d love to try that new Takuma with motor and battery built into the fuselage. It’s been crickets since the first image of it leaked.



PonoBill

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Re: Swim Missiles
« Reply #212 on: July 15, 2023, 02:57:40 PM »
Yes, the key is chamber heat=80C, bed heat (a little hotter than recommended), absolutely dry filament, and as wide a raft as I can fit.
Foote 10'4X34", SIC 17.5 V1 hollow and an EPS one in Hood River. Foote 9'0" x 31", L41 8'8", 18' Speedboard, etc. etc.

DavidJohn

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Re: Swim Missiles
« Reply #213 on: July 15, 2023, 03:17:22 PM »
“ I love that the pod (and power) doesn't come out of the water unexpectedlly and the power is constant but man does it force the nose up in that position.”

Move the mast as far back as you can and you will notice a big difference..
« Last Edit: July 15, 2023, 03:20:27 PM by DavidJohn »

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Re: Swim Missiles
« Reply #214 on: July 15, 2023, 05:08:33 PM »
Today was very sweet! 

I first tried the Axis 1150/400 with the Foil Drive and it was a wheelie fest.  Went in to put on my 1100 with a new 310 mm tail that I made this morning :).  It has a vertical stabilizer and is very similar to sailplane tails.  Still a small tail but it has 30% more area and volume than the very small Infinity tails we have been using.  Also a shorter and stiffer fuse (although nothing close to the new setup that is in the works).  What a difference!  Smoother takeoffs, easier to level and much longer flights.

Then Chan flew it with a 3.5 wing and she looked nice and level with none of the earlier foot and stance stuff.  She looked rad light wind cruising (12 MPH). 

This has me very stoked on the new fuse joint, stiffer fuses, larger infinity tails, etc.  I need to get cracking!

« Last Edit: July 15, 2023, 05:15:43 PM by Admin »

Beasho

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Re: Swim Missiles
« Reply #215 on: July 16, 2023, 09:46:47 AM »
Was this the first “Real” extended flight with your homemade printed prototype front wing and tail?

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Re: Swim Missiles
« Reply #216 on: July 16, 2023, 11:53:29 AM »
Was this the first “Real” extended flight with your homemade printed prototype front wing and tail?

Hi Beasho,

Yes, these were my first extended flights.  Chan has been the real test pilot with her wingsurfing.  She has now had the Falcon (box wing) and all 4 of the modular foils flying. 

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Re: Swim Missiles
« Reply #217 on: July 17, 2023, 07:45:57 AM »
Print to Ride in its purest form.  The "Sailplane" tail that Chan was using (images above and this video is straight out of the printer.  It is not sanded or coated in any way.  I just picked off the crusties with my thumbnail and mounted it :).  This is the same 1100 front wing that we have been using now since our first day.  It has hit rocks, been dropped, transported, etc.  Still foiling. 

I post this vid to counter the suggestion in the podcast that takeoffs on a direct mount (mast into front foil) are challenging or require an ollie.  The opposite is true.  They glide off the surface with subtle tail pressure.

Also on stall speed, Chan's watch shows her foiling at as low as 4 MPH :).

https://www.youtube.com/watch?v=kTLWgJBuV3E
« Last Edit: July 17, 2023, 07:54:26 AM by Admin »

jondrums

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Re: Swim Missiles
« Reply #218 on: July 17, 2023, 11:33:00 PM »
yes, I didn't know what to make of Adrian saying that mounting the mast directly over the foil doesn't work.  His explanation didn't make any sense at all either.   Nice to have your data point that at least for the foil you designed, it works with mast directly mounted.  We also have the fellow below who found the same thing:
https://www.youtube.com/watch?v=ycN_mw2ahJ0

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Re: Swim Missiles
« Reply #219 on: July 18, 2023, 06:04:33 AM »
yes, I didn't know what to make of Adrian saying that mounting the mast directly over the foil doesn't work.  His explanation didn't make any sense at all either.   Nice to have your data point that at least for the foil you designed, it works with mast directly mounted.  We also have the fellow below who found the same thing:
https://www.youtube.com/watch?v=ycN_mw2ahJ0

Yes, he is a great example of this working at a high level.  He cost me some time though.  I stole his barrel nut fuse connect on my update of the Falcon wing for faster, single screw, fuse changes.  I like that better than what I was doing and the new thicker fuse joint will now support it.  I went off the shelf though.  M6 screw with a 10 mm barrel for inside my 15 mm carbon fuse ferrule which glues into the 19 mm outer fuse tube.  That is a new 270 mm infinity tail as well which is 20% larger than the first tails and has .25 degrees more down kick.
« Last Edit: July 18, 2023, 06:19:16 AM by Admin »

PonoBill

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Re: Swim Missiles
« Reply #220 on: July 18, 2023, 08:34:11 AM »
How the hell are you printing those double wingtips?? Tip on the plate with a lot of support, or wings on the plate with a lot of bridging and support?? That looks difficult. The rest, not so much though there would still be plenty of sanding.
Foote 10'4X34", SIC 17.5 V1 hollow and an EPS one in Hood River. Foote 9'0" x 31", L41 8'8", 18' Speedboard, etc. etc.

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Re: Swim Missiles
« Reply #221 on: July 18, 2023, 09:50:53 AM »
How the hell are you printing those double wingtips?? Tip on the plate with a lot of support, or wings on the plate with a lot of bridging and support?? That looks difficult.

It took me quite a few tries to make it work.  They print standing just as you see them but on a huge forced raft.  The support structure is much bigger than the part and you can't even see the finished part until you break it out.  It has to be held perfectly still so the ends can air-join.  It is really magical that it works.

gneve_foil

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Re: Swim Missiles
« Reply #222 on: February 21, 2024, 08:14:02 AM »
Hi Gneve,

Chan is 115 lbs and she likes the 84 liter board which is probably very close to what her SUP foil downwind size would be.  I have no real frame of reference but based on her experience  and the gains she saw over her 64 liter board I am guessing somewhere around 110 Liters for me at 170 lbs.  I can get into the right swell on the 84 liter board but I would like to get the less perfect ones as well.  We ordered a 100 Liter and a 110 to see how those go.  They should be here in July.  Dave has all of these designs on file and could easily fit one to your specs.  He is great to work with.

Funny how the universe works in that I just picked up what I believe to be Chan's 7'7". Stoked to see if I can leverage this board to catch some outer sandbar waves here in Charleston.

I'm also considering this for light wind winging but balance could be tricky.  Should be fun to try!

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Re: Swim Missiles
« Reply #223 on: February 21, 2024, 08:58:12 AM »
Very stoked to see how that goes for you.  We have the two bigger ones now that Dave made for us and they are unused so far. What turned out for to be a short window for me is up now, but Chan is going to keep on with the mission!  I will be there to film :-)

gneve_foil

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Re: Swim Missiles
« Reply #224 on: February 21, 2024, 09:34:56 AM »
I'll report back when I've had a chance to give the board a go. Not sure what foil to start with:

- Unifoil Progression 140
- Axis ART1099
- Axis HPS1050

Leaning towards the 140 but open to suggestions.

 


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