[quote]ORIGINAL: YPC

IMO....I reckon....as I mentioned before- aerodynamics (WIND) really becomes a 'big issue' after 25 - 30 mph.....

As for the crescent cut outs in the Kyhoso - NQD boards - I've been waiting for what other Think.....!!
I dont believe they are chines - chines deflect water - creating lift - the crescent cut outs to me are quite ingenious. I believe they act much like a V hull would to a degree 'allowing the board to lean even more in the turns' yet maintaining a flatter more stable platform aft of the board in the straights
Its a partial stepped hull - rather than a V- hull......if you draw it out as a cross section - you can see the similarity to a shallow V bottom theory......
It should also 'allow' the board to ride flatter, rail to rail ( keeping the surfer more vertically upright) as it travels parallel to the wave face, due to wider greater symmetric shape ( the wider portion of the boards rail line) in fact being shallower in depth at the bottom, allowing the rail to fit into the waves radius better......hope that explanation made sense..

The 'safe theory practice' will tell you that you should not be running below 3.6 V /cell....which would be 14.4 v's per pack after the run....

I run the HK (inexpensive) micro digital 3.6 kg all metal gear servo's....... have not broken a gearbox to date.....I do run the single fin 'occasionally' - but - another ' bi-fin' plus is that it places very little force and load onto the servo. The two fins continually balance any applied force.....reducing the servo's load drastically.

Bro ********. ...
Share the STOKE !



YPC hope you don't mind me posting this editedquote..... important stuff and with the 'crescent mystery"......

Anywaythe two fins of a 'bi-fin' continually balancing the load is way interesting.....never thought about the self balancing servo saving less flex in the cable system that a bi-fin couldacheive before.... may have less 'feel'but....the more i think about it the more i think i have to make one soon....