What good is it having a blog without some pretty pictures?
I really need to get out and fly again… haven’t tried since BALLS, I think. Oh well. Here’s some old ones… like here, when things go right… a 98mm N motor with 42″ of propellant (82% solids, 6% Al with a dash of CuO) pushing my school’s rocket “Del Carbon”, made using the techniques I talked about in the composite layups post (yay shameless trackback #2…)

Here’s when things go wrong. We (me and the school group) tried to do a carbon fiber cased O motor, but we had a “peel failure” between the casing layers. The case delaminated and allowed the forward bulkhead to fly out on pressure-up, absolutely torching Les Derkovitz’s rail. We’re still sorry, Les:

Whew. Glad the Flickr integration works well too.