"The bogan"etow build

That looks like a beauty!


Motor Mounts completed and Twin 65150 Flipski Motors INstalled…
If anyone out there can get hold of FLying Rodeo directly let me know, Im trying to get hold of them for counter clockwise rotating folding props…
Thanks in Advance.

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Hi mate ! Ive finished battery case design - got a batch coming - (1 month out) - they are 14s 7p - samsung s50 cells - -150 amp bms - anti spark switch with on off button on case…
35 amphrs…

neat as a pin - Im keeping the battery builders seperate from my business - just referring on dudes that need them to buy from them direct…

if your affer one let me know - im paying about $1000 US for 1 battery inclusive of shipping to my door…
cheers - mark
Hulls are about 3 weeks off too - very exciting. well be riding em at mambo this december

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He sold his business, not sure who took over everything.

thanks man - yes - ive found the new owners - they will be back at it putting out the worlds fastest props shortly with new energy it seems!

Hello,
Have you tried your Towbogan? I’d be very interested if you sell it.

Hi Philippe -
Yes were testing the etow /Tow Bogan litterally every day with all different motor and Tech configurations - the idea of the design was to be able to open source the Hull - becuase people will all have different budgets / power requirements for their weight and gear they foil on…
6kw right up to 20Kw Options for the Power train are already available through quite a few suppliers.

The Hulls are just entering production phase here (Litterally today) - Photos of the complete hulls probably out in a week or so.

Ive also built motor mount kits for options for people wanting to run Single motor, or Inline TWin motors, (Steering options with rudder / servo) and with R&D continuing on Water Jet and Twin Counterrotating options - were getting closer to complete turn key packages every day - there is a lot in it. It makes an efoil build look simple.

Right now though - Its Hull only for sale, Delivery in 3 weeks, with the Single and Inline Single Motor mounts coming out ready to delivery in a similar time frame.

Water Jet Motor help !

In testing for the etow, Ive been testing everything I can buy to ensure correct motor mounting positions on my etow hull…

So far, Motor mounts for Single motor mounts are a consistent position at Exactly half way up the hull - all power trains tested from 3kw right up to 7Kw working great on this hull shape - Im liking the reliability / simplicity and low price point of the 65161 65162 (6kw Max 3kw Constant) for lighter riders and or foils over 1200 Sqcm, but IMO they are lacking juice for big riders or small foils…
So…
Im keen to get on the water testing done for the 70182 motor… (9Kw Max and 4.5Kw Constant)… Should be a winner for heavier riders and small foils…

After that I want to try the Maytec Water Jet MTWJ ( 20Kw max - 10kw constant) for wake skate applications … If anyone has used these and can confirm that the motor still sucks water in and propells (wihout prop cavitation ) properly at high speeds (24 - 35 kmph) I’ll pull the trigger on one for some testing… .

Agnes hasn’t got any video of these working at speed, only water tank testing and thus I’m hesitant on the purchase till I can see one doing its thing at speed !

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How much does this frame weigh without motors?

Hi Rttn, This Ally base was only built for a test rig, no longer using it as it was difficult to make curved ‘foils’ around the edges for anti-cavitation…
The updated one is about half as much ally and has straight up and down foil sections, with 3d Printed inserts making a nice foil shape…
The one in the picture was about 5kgs, the new frame about half that …

Ive called the boogie the ‘etow v3’ after 3 major hull re-designs to get this far. Its bloody amazing with excellent steady pull and really decent top end. its light too - were at half the weight of the early hulls…mark sills on Instagram: "etow v3"

Running twin 65121 motors with maytec submersible 160Amp ESC now. I have the ESC wrapped in ice packs as using the etow now for foil coaching… Were doing like 4 hours non stop pulling along a big board with very little actual foiling for the learners. The Esc get very hot.

I’ve built a submersible water ; jacket’ of sorts, put the esc inside and then ran a naturally aspired pick up and exit to get the cold water in and the hot water out. .
Coaching with the etow v3 " Tow Bogan"

https://www.instagram.com/p/DT9O357CbR5/

ive 3d printed my motor mounts and angled them slanted slightly forward to bleed off any bubbles / cavitation - works well with zero bubbles at the stern under full power. the little Aluminium tab at the front of the mount 'clamps ’ the motor to the 3 d print and ive got 3x m8 stainless steel bolts running through the structure (potted) to add strenght and a bolt through structural fixing… 4 weeks now of 2-3 hours sessions on the weekends without any signa of fatigue . im going to say these mounts are perfect…

ive had a few major impacts with thr boat ramp and cracked the nose cone twice - made a new one in T P U and it seems stronger with the flex…

.



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going tomwork on a manual rudder steering module next…
it would be nice to be able to tweak steer the etow though onstacles without need of pulling it around by hanging off the whip -
Anyone done a rudder with twin rope steering?
didnt love the fiddly remite / electronic steering options ive tested so far -

my vision is to be able to steer the etow at speed while foiling down narrow creeks / waterways - and also foil my own path / regsrdless of the etows position / eapeciallyy when your off at whip speeds and experiencing slack rope/ overtaking the tow…

il moving to manual mechanical steering over electric / remote control operated steering because:

  • Ive had little success with servo / rudder control…

  • Bulldozer steering showed some success - ive run 10+ water tests at various motor positions / widths for appropriate steering control

  • Bulldozer steering arrangements worked well with motors closer together - but this affected cavitation for me and theough chop performance…

so ive pulled the oin on it for now

  • I also
    worried for my prooses a bit about the safety of bulldozer steering… the wider ‘stance’ in general of the side by side props being too close to the sides of the hull for the safety of the begginers using the etow during lessons… (that comes back to a lot more work on prop guards)…

Just added / uploaded a few of our build videos onto you tube. Soooooo much work and soooo much testing. I scanned through my pics and videos and they seem so bad I havn’t posted - but if it helps anyone out there with their builds - let me know. Its been a long journey so far - This is how we do it in Australia - The first etow v3 coming out of the mold… hahahah…
copping a blast from the mold builder :slight_smile:

far.https://youtu.be/M5_7Qel0M6s?si=DKwZdvPzG88yICTk