First let me compliment Hobie on the improvements in the 2009 Island hull.
Wife & I have used & loved the 2007 model since Fall of 2006, but the '09s refinements are impressive. The deeper port side drink holder, better seat scupper plug holes with little wells, click 'n go drive, better pockets, ect. Really impressive stuff!
Now, this is the first time using the up/own rudder lines - which seems to work great and I have had no problems. However, once the boat gets up to a fast speed - about 7 mph there is a definite humming and vibration coming from the rudder I believe. I have handle bungied all the way down. No humming at slower speeds.
I can feel it in the tiller handle and the hull and pretty sure it is in the stern rudder area. The sound it makes is like tie down strap vibrating in the wind while driving.
Never had that on either 2007 boats with older up/down single handle.
The sound is not entirely unpleasant, in fact it adds a sensation of speed.
The Island is literally "humming" along
Q. Has anybody else experienced this phenomenon?
Is this a result of the bungie cord down line acting like a guitar string when attached to the rudder?
I assume this vibration is also not a problem of something that needs adjusting?