This is a 29mm rocket, although it's flown in the video on an E9 for it's first flight. We'll move on to F & G soon enough. I found this kit heavily discounted, bought it, and threw it in my closet where it sat for about a year. I knew I wanted to upgrade it to 29mm, so when I finally had the parts I needed to do so, I began the build. all in all it was pretty uneventful. There are a few changes I'd make in the future. I used the break point in the center as my parachute bay, inserting a bulkhead just forward it, and using the nose of the rocket as my electronics bay. In this case, all that space only held my new Altimeter Two, but it's there for future use. The launch was a total success, with very enjoyable results from my Altimeter Two. As I progress to larger and larger rockets, I never get tired of seeing a big rocket head skyward. But there's always a bigger fish! I had some really cool songs added, but YouTube said I couldn't do that and removed my audio. So here's the raw video with no music. Please search my username in the future for 29mm launches! Thanks for watching. ENJOY! EDIT : 12/8/2017 - I haven't used this channel for years now. Although I'm no longer in to rocketry (donated the whole collection to a family member), you can see my other endeavors such as sailing, piano, travel, reef tank and the list goes on and on... I have three main channels now. "Sailing Serenity", "Minnesota Chronicles" and "Josh Campbell". Hope to see you there!