Sky Shark™ P Series Straight tubes:
Sky Shark™ P Series Straight Competition Air Frames info from Jon Trennepohl:
These tubes can be cut and ferruled anywhere using a solid carbon rod. They can also be ferruled with any of the New Tapered tubes except the 2PT. These tubes work great for building sport kites as well as single line kites.
All of P series tubes are non-tapered, with the same inside diameter as our tapered tubes. You can join any of our P series tubes with the tapered tubes. These tubes are made in much the same way as our wrapped tapered tube with the exception of materials used . The P-series also use a different layering of materials which makes it possible to cut the tubes anywhere and ferrule them without breaking out the wall, unlike the tapered tubes.
A common question is "what is the difference between P-series tubes and the tapered tubes?" Weight verses stiffness. Example 3pt, at 12.5 grams, has the stiffness of the P-200 at 14.5 grams.Which is more durable? The P200. The 3pt is an ultra light performance tube wind range 2mph to 12 mph or more depending on design. The P-200 could take winds up to over 20 mph and not break. It would lack the performance of a stiffer tube, but can take it, unlike the 3pt. The P series tubes also have a smooth finish and this year come in either a black or the original gray carbon finish except for the p90 and p400 which only come in the gray.
All the new P series tubes come from a new manufacturer and we think the quality is better than ever. All of the specs are the same as before, with the exception of the P-400, which is a gram heavier.
Information on other Sky Shark P Series straight tubes:
a) 8 P- is still available at 42 " and is now also available at 32.5 ".
b) 2 P- This tube is now 9 grams , and still uses a 5mm/.1960 ferrule.
c) Ferrules-- You should always use solid .2400 rod in all tubes with the exception of 2pts, P90s and 2ps which you could use lighter 2400 tube ferrules.