hilly said..Johndesu said..hilly said..Johndesu said..
Maybe others have experience regarding the Armstrong HS 1550V2, I have just worked out my mast placement on the tracks and now am happy with the Hs1550v2 on a 60 fuse (V1) & 232 rear & am using the +1 titanium shim, pumping and glide are not bad on a sup but am just wondering if I can go faster with a 0 shim or +2 etc.?, as I appear to be slowing down a bit or is it the tiny swell / wave and my lack of experience that is affecting its performance?;-) thanks :-)
Old fuse I ran -2 the new one -1. Not into speed I like the extra lift and glide. Still feels fast though and less dippy
So you achieved better glide & pump with the negative shim then a positive one, but did you try the zero shim? I am just wondering if it is possible to have a better set up for super small waves hardly / not even breaking (under 6") & then go back to your / my normal -1 shim set up when it is bigger (over 1ft etc;-) Thanks :-)
Yes you can. 0 gives more lift and glide than +1 so is more suited to small waves.
If we take the technical definition of glide, which is Lift over Drag (L/D), the best glide is achieved by reducing the angle between the front wing and the tail wing. On the old Armstrong fuse that would be using the +1 TTF shim. The 0 TTF shim will slightly increase drag, but will also give a higher down force of the tail, which feels like more lift in the foil for the same mast placement.
If you want the highest possible glide, add more positive shim angle and move the mast forward. This comes at the expense of pitch stability though, but this is usually only a problem when going faster (in bigger waves, or winging). As you get better, you can move the mast forward and add positive shims.
Personally, I like the 1550v2 at 0 or +1 for prone. For winging, I usually leave the shims out which means -1 on the A+ fuse.