This makes it much easier to align fins than it would be by simply guessing- this makes sure that the fins are firmly attached to the rocket. The only thing I would mention is that you have to be careful with taking the rocket out of the alignment system after the glue sets- the fins can sometimes become glued to the alignment system. (Posted on 11/3/13)
Doesn't matter what your skill level is, this fin alignment guide ensures you that your fins go on properly. You would be suprised at how much this increases your rocket's performance! (Posted on 1/4/13)
I have had my fin alignment tool now for quite some time. I used it on my first rocket kit. Takes the quesswork and headaches of aligning the fins by sight. The only thing that I would like to see different would be a new fin alignment tool that will accomodate a five fin configuration. I just finished helping a young man put a 5 fin configuation on his Viking model rocket and it presented a challenge for him. I went home and built a simple alignment tool. I used it and was able to align the fins with a 72 degrees spacing. Had I not did that, the boy would have had to go with the 3 or 4 fin setup.
How many fins have you glue on that you thought were just perfect, but after the glued dried, you notice one fin was off by "just a little bit?" Well, that "little bit" is going to cause your rocket to spin or wobble and ultimately rob your chance to reach maximum altitude. When you don't reach maximum altitude, your ejection delay is probably not going to release your parachute at the opportune moment which can lead to more problems. Forget all that--just get this Fin Alignment Guide and quickly glue, clip and set your fins perfect every time. (Posted on 6/17/12)