Evolution of RC scratch built Riva Aquarama to reach 45 km/h
Posted: 31 May 2014, 07:59
Hello
I would like to share some clip how we make a wood model boat run 45 km/h:
on 2013 tantrasway racing team founded with the aim to motorize runabouts and conquer limitations of speed. We reverted to the riva aquarama project. twin 1800kv brushless motors were used. Some first tests:
[youtube][/youtube]
then, with change in center gravity and shaft angle
[youtube][/youtube]
the 4th test with some adjustments:
[youtube][/youtube]
the bottom was redesigned for more hydrodynamic, the 5th test
[youtube][/youtube]
Recently, here is our newest riva aquarama special edition, it reaches 45 km/h just within 20m drag run
[youtube][/youtube]
Here are the specs of the boat:
Hull: self made by tantrasway
Motor: dual brushless motor with 1800Kv water-cooled
ESC: dual 120A water-cooled
Battery: dual LIPO 4s 4000mAh, 30C
Shaft: 4mm flexible shaft
Propeller: dual nylon 3-blade propellers
Rudder: dual CNC aluminum rudder
Standard servo with dual bearings and 180oC rotational range
Radio controller: 2.4ghz 3 Channel Radio System with 800mAh battery
Water-cooling system
Thanks for watching,
I would like to share some clip how we make a wood model boat run 45 km/h:
on 2013 tantrasway racing team founded with the aim to motorize runabouts and conquer limitations of speed. We reverted to the riva aquarama project. twin 1800kv brushless motors were used. Some first tests:
[youtube][/youtube]
then, with change in center gravity and shaft angle
[youtube][/youtube]
the 4th test with some adjustments:
[youtube][/youtube]
the bottom was redesigned for more hydrodynamic, the 5th test
[youtube][/youtube]
Recently, here is our newest riva aquarama special edition, it reaches 45 km/h just within 20m drag run
[youtube][/youtube]
Here are the specs of the boat:
Hull: self made by tantrasway
Motor: dual brushless motor with 1800Kv water-cooled
ESC: dual 120A water-cooled
Battery: dual LIPO 4s 4000mAh, 30C
Shaft: 4mm flexible shaft
Propeller: dual nylon 3-blade propellers
Rudder: dual CNC aluminum rudder
Standard servo with dual bearings and 180oC rotational range
Radio controller: 2.4ghz 3 Channel Radio System with 800mAh battery
Water-cooling system
Thanks for watching,