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I broaden the front part of the hull so there it could may be possible to drive it also with an air propeller.
To day I tested the air propeller but I had only a 2 cells lipo and that wasn't enough to make really speed.
The powerful inboard outrunner was driven with 4 cells lipo and made the boat by far much faster.
https://youtu.be/qRDI_Ux5wrI
Update 07.31.2015
To day I tested the air propeller with another motor (STORM 1806 2300kv) and with a 4 cells lipo. Its much faster now:
https://youtu.be/yqHt3sAv-RI
But it isn't optimized yet. Full throttle pushes the bow down and breaks the speed.
Attention
Use the propeller mount with the protection ring only in still air, otherwise it will capsize for sure!
That's why I designed the slim version "propeller mount slim".
The hull consists of 4 parts, the longest is 180mm, or 140 mm if you take another combination. Anyway, I uploaded the complete hull, so you can slice it in pieces as long as you like. This is very easy to do with netfabb or another program. If you have difficulties, I can do it for you, but the smallest possible part is 130mm.
https://youtu.be/VMiSrvlvjjw
Update 08.24.2015
The third try was made with two propellers
http://youtu.be/bLIIah6aCVQ
https://youtu.be/sKNVVHtIEF8
Update 09.25.2015
A new video from a boat prited in PET by abcona:
https://youtu.be/PcmQxUKALkk
Update 12.20.2015
Uploaded sterntube test 7.4mm
This is for a test print if you want to use a sterntube with …
