ferry constructions | |
ferry #1This ferry has a wind catching surface of about 0,9 m2. At the frontside (figure A1) is also a folded piece aluminium glued that contains an axle with a weel. Inside the tube a 84 cm long glasfiber stick is fitted of 2 mm Ø. At the front of this bar a eye is glued for the release system. Figure 2 shows the backend of the ferry. Here is also a peac of aluminium used that contains a weel. Ath the bottum of this piece a hole is made for connecting the release system for a chute. At the backside 2 pieces of tube are glued for the release system. The releasesystem contains also a piece of carbon of about 12 cm. This stick is connected to the 84 cm long stick with a peace of valvetubing. It is secured with a small piece of rope..
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> | Fig A1
Frontside of the wheelwork from ferry #1 |
> | Fig A2
The backside of the wheelwork of ferry #1 |
ferry #2This ferry has a wind catching surface of about 0,2 m2. |
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Fig. 1
The frame of the ferry is builded with 2 glued alluminium tubes with a diameter of 10mm. The bottum tube has at the frontside a hollowing out to connect the spar of the sail (see figure 3). On the tubes a piece of folded aluminium is glued in where an axle with wheel is fitted. |
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fig. 2
On this picture you can see that the piece of aluminium is folded in a special shape that profides the ferry to fall of the kite-line. At the front of the glasfiber stick (diameter 2 mm) an 'open' eye is connected. Thie eye takes care of releasing the sale when it bumps to a buffer on the kite-line.
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fig. 3
The connnection of the sparr of the sail and the wheelworks. |
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Catching bufferWhen the ferry comes back to the ground this can happen with a very high speed. To catch the ferry in a soft way I have made an construction from a piece of steelwire (the grip of a paintcan). The kiteline is twitsted a few times around this construction. At the end a sponge os folded. This sponge will catch the ferry when is comes back (see the following pictures). |
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© 2008 Leo Commandeur
bijgewerkt op 20-10-2008