Autumn Project 2012 After some tests during Easter, we were on the lake again a few weeks ago; the controller of the surfboard now behaves as...
BPL your understanding of our philosophy is appreciated! Intrepid71 Thanks! Indeed this is always a problem with surface piercing configurations,...
Winter Project 2011 As usual, one would be tempted to say, the team met at Christmas to test the latest development. This time it was an upgraded...
Thanks for the clarifications. We will of course consider your input for the design of the second version of the controller. Do you happen to...
Hello Tom, thanks for your interesting input! I assume you are referring to the Summer Project 2010. Many parts of the design were...
The problem is that the dynamics of every system have to be modelled, so unless you plan to fly a surfboard exactly identical to ours the...
Thanks! Yes two independent flaps per foil. The next step is to recalculate the model, in order to improve it's accuracy, add a 9 degrees of...
Here is the video! Notice the good roll stability given the noisy input of the wands. XbY4EV1bnU0
As Christmas came we started the core part of the Winter Project 2010. The aim of the project was to test a feedback control system for the T...
Here they are! As announced at Easter this summer we built the foils for the hull! See the complete report at www.hydrofoils.ch wWfNAGD-jBw
We are back again! This winter we bought and partially rebuilt a Yamaha 15A two stroke 15hp outboard. Easter came and the idea was to build a...
Since we do a lot of composite work, the various machines are at our free disposal and we have a lot of material lying around I really do not know...
chengtc i) I think you are referring to the flap deflection angle. Angle of attack is generally used for an entire wing and not for a flap. If...
Hi, flap control is done with a spring steel pushrod that moves in a plastic sleeving. Look carefully at this picture...
Thanks! We operated them at 5V, they are rated at 7.7kg.cm (106.93 oz/in.) at 4.8V. Since the distance between hinge line and flap horn is twice...
I seem to have run out of space for attachments... so here they go directly linked. Notice the difference in area between the new and old...
Last week we decided to have a go with a new set of foils. Fully submerged T foils this time, with two flaps per foil. Altitude, roll and pitch...
Thanks for the comments guys! Doug: Yes you are correct the surface is used as altitude control. The centre section spans 80cm, the two tips...
Day 4 The supports where the struts would be attached were now aligned and glued to the carbon parts we made on the surf earlier. Five minute...
This is a short write up of our 2009 Easter project. We had been thinking about the realisation of a hydrofoil boat for a few years but never...
