For Zoom 1 model boat hull fittings use a 3100 turnigy motor, a 120 sea king esc, running gear from ebay, 100 or 95mm rudder (ebay),0.150” flex drive & coupling - Model Marine Supplies - and a 35mm prop running 3s lipo.
Balance point 180mm (30%) from stern.
Click here for hull inquiries.
With 700BB 8.4V. Balance point 180 mm from stern.
Ebay 95mm or Prestwich Models rudder (EM80), Octura X445 prop & diy turn fin.
ZOOM I with Mega 2000kv brushless, Octura X440 prop & cooled Emax ESC
Central rudder position and longer shaft
With 2 turnfins and 75mm rudder
Motor: (this is an Etti 4100kV on 2s lipo but the 28mm dia Leopard ones are good – also the Dr Mad Thrust from Hobbyking and the black one,with jacket,on ebay).
Cooling jacket or coil
Shaft coupling 4mm to 0.150” flexi (Astec models).
ESC: Seaking 90A or 120A or similar (ebay).
Marine Modelling Supplies flexishaft 0.150”flex.3/16”stub.4mm thread plus a length of teflon liner.
3/16” lead/teflon bearing (from Winnisall/Prestwich or ebay) which is a push fit in 9/32”brass tube – the step down to ¼”.
Alternatively, you could use a 4mm setup (coupling,flexi,stub,thread & bearing) from ebay
75 or 100mm boat rudder (ebay).
Graupner 36mm hydroprop (Cat.No. 2318.36)
Turnfin - ebay or make one.
For 3s lipo use a motor around 3000 kV (like the Mad Thrust 3000kV or Leopard 2860 3400kV) and 34.5mm or 33mm prop.
Balance point 180mm from stern.
NB: not a toy – it will be quick.
Zoom RC Electric Model Boat Race
Mats RC Zoom 3 Boat
Zoom 3 Fast Electric Boat Run 2
The First Electric Power Boat Race of 2016
Click here for Zoom hull enquiries.
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