Guru
Joined: 15/07/2006
Location: AustraliaPosts: 497
| Posted: 12:51am 03 Dec 2019 |
Some more changes to Kerme.
Cut out the second width pontoons. Added a V-Bottom. More planing surface and more tunnel space. A little less buoyancy though, so draft is more. Fitted 2 Golden motors.
Off to the water for testing.
It feels to skip a lot better at high speed, but the numbers don't indicate anything better. With the 2 motors, it never achieved any better speed than with one motor, but used more electricity. Pulling power is ok. Knee board was easy, and I got up on 2 ski's, but single ski could not get up.
Pack voltage at rest measured at 52.6v
6.3A 2.4 km/hr
8.3A 2.4 km/hr
13A 3.2 km/hr
28A 6.8 km/hr
35A 7.5 km/hr
48A 8.2 km/hr
56A 8.8 km/hr
78A 9.7 km/hr
120A 13.2 km/hr
128A 15.2 km/hr
148A 18.6 km/hr
185A 17.8 km/hr strange result
259A 21.3 km/hr
275A 24.0 km/hr
but later, another strange result
250A 26.8 km/hr
Trev @ http://www.thebackshed.com/basiclynatural/