For the rudder attachment points I decided to use 5 layers 300gr bi-ax carbon for the upper and lower area and finished the job with peel ply. To ensure that the parts cure at the correct angle, I put packaging tape over the peel ply and then fit the LH fin skin. I've already done the trail fit a couple of days ago when I glued on the RH fin skin.
The carbon is a great product to work with, I love it! I opt to wet out the piece of cut cloth on a piece of paper (much like wax paper) on both sides and then to place it in position, using a brush to "stab" it into all the corners and areas. I also use a little composite roller tool every couple of layers to roll out any air bubbles there may be, as well as excess resin. The excess resin can only be rolled out by rolling in one direction to the outer edge of the carbon cloth and by applying a good bit of pressure. I do the same once I've applied and smoothed the peel ply. The result I get using this method is fantastic in my opinion, but I'm not an expert by any means.
One learns a lot of things building your Whisper, not only about composites, resins and tools, but also about one self
