I have wanted to do a build thread for some time, however, because of other commitments in my life I tend to drag my builds out with inconsistent building 1 hour here, 15 min there and 30 min there. Hopefully, I can keep this interesting and progress at a pace that keeps your attention. This rocket was born out my desire to have something simple to take to mid-power and high power launches, and fly as a simple quick-prep pop and drop, or have the flexibility to fly on an H out of site. Initially, I was looking for a 24mm MMT. However, as the discussion progressed in this thread, I decided to use a 29mm MMT. From a design perspective, I knew that I wanted something stout and rugged enough to build and fly on a wide range of motors. I also wanted something a bit more unique than 3FNC, so I settled on 5FNC :wink:. To meet my desire to use materials that were rugged and of high quality/high precision, but at a reasonable cost, I reached out to Mike @ MAC Performance Rocketry. After sending Mike the RockSim file followed by a brief discussion, it was pretty obvious that Mike liked the design and wanted to help. He had a tailcone printing on his 3D printer within minutes. After further discussion, I realized that Mike also had all of the components for this project, which made it a convenient one-stop shop. BTW if you have not had the chance see one of MAC's kits, you really should drop by Mike's tent, if you are lucky enough to attend a launch he is at. I can't overstate this, but his components are not just quality in the materials used, but the precision is second to none. His kits and components are manufactured to a very high standard. I will begin building sometime this weekend and will post results as I go. Below is the package I received from Mike. My initial colour scheme but still lacking some details. Not just a bunch of parts but Mike turned this into a kit for me, talk about service. Mike also took care of providing a high-quality precision CNCd top CR with an integrated Kevlar attachment point for my harness, top left. Also bottom right is a MAC nosecone AV bay. As I mentioned, I wanted the option to fly this on a range of motors, including some that will pop it out of sight. So I plan on building a removable AV bay to host an Eggfinder Mini and Eggtimer Quark (for apogee only). The BT is 54mm, so there is a lot of room to use the JLCR without the need to get creative in packing or under-size the chute and recovery gear due to space restrictions. A quick dry fit...Mike produces a premium product! Here it is beside a Rocketry Warehouse, now Madcow, Formula 38. Very similar in height and although my Jolly Logic Chute release fits in the Formula, it fits a heck of a lot better in the MAC BlackFly. The rocket is 28" from tailcone to tip. Remarkably even though the BlackFly is a substantially beefier airframe with much tougher/thicker fins, only 25 grams separates the two rockets at this stage. This is one robust little rocket! A shot from above to show the five fin design. And a close-up of the custom tailcone. See how well an Aeropack fits. The tailcone in the pic is not the one I am using, more on that down a pic or two. One thing I was concerned with in using five fins with a 54mm BT, was rail clearance, however, it easily clears if you use a 1010 rail. I plan on using the 20mmx20mm x 48" rail with the mini rail buttons. Why the name BlackFly? If you have ever been to Canada's North in the Summer, or anywhere in the world for that matter where these little buggers are, then you know that they are tenacious, relentless and very adaptable. Beyond those characteristics, they are also known as a good flier with a stout, robust little body. So the obvious thing to do next, send Mark at stickershock a picture, along with the background story. If you have ever worked with Mark, you know how great he is at this stuff. Just shoot some ideas at him and "wallah" he shoots back some quick, creative visuals. After a few revisions, below is a rendering of the final scheme and the decal set that will adorn my MAC BlackFly...as Mark says, never fly naked! This is why the yellow tailcone is not being used. Although one might wonder there are 4 in the picture... As mentioned, I will post more pics and updates as the build progresses...thanks for watching and I look forward to your comments!