I-ROC
PK-76
Regular price $170.49One of the ADVANCED SERIES of kits, which include factory pre-slotted airframe and through-the-wall fin construction, the I-ROC is a large 5.5" Diameter airframe with a 38mm motor mount designed for H-J motors. Parachute Recovery.
DESCRIPTION
5.5" I-ROC rocket kit
Complexity: Intermediate
Diameter: 5.5″
Height: 54"
Weight: 4.5lbs
Motor Mount: 38MM
Parachute Size: 50" Ripstop Nylon ***Colors are random***
Shock Cord Type: NW-20 3/'8" Tubular Nylon
Shock Cord Mount: SCM3
Fin Thickness: 1/8″
Ring Thickness: 1/4″ (two rings)
Rail Guides: 1010 rail buttons
Motor Retention: MR-1
Instructions: PK-76-IROC-Instructions
Vinyl Decal: Yes, logo only
Rocksim File: IROC
Achieved my Level 2 HPR on November 23, 2025. Engine was an Aerotech J270W-8. Speed was 470 MPH, 73 second flight, 10 second coast to apogee. Beautiful flight, straight as an arrow. Altitude reached was 2892 feet. Rocket weighed 5lbs. Quality components, good instructions, and a joy to build. What more could you ask for?
I've got this kit and the Minnie Magg, I love the IROC for it's simplicity and it's shape. Mine has flown probably 8-10 times on everything from an H to a J. The build is simple, making it a great L2 kit for those that are so inclined. (I usually recommend the Iroc or the Minnie) Motor deploy (I've added an electronic apogee backup). The one thing that dropped a star for this kit is the thickness of the fins. They are THIN. One of mine broke right at the root on a landing where the tube of the rocket didn't contact first (windy). It was almost as if Loc knew this might happen because my kit came with 4 fins (one extra). I was able to drill out the old remaining tab and put the spare fin in and repaint. But that would be the one caveat and/or area for improvement if Loc decides to go with something like 3/16" fins like some of the other kits they manufacture in this class/size.
I bought my I-ROC in June from Chris Short at the Samson, AL launch. It was a very easy build. I flew it twice at the Freedom Launch in Dalzell, SC. First flight was on an I-284 Mojave Green. The flight was spectacular! It flew almost to the limit of my Mk-1 eyeball's ability to see it. The parachute deployed perfectly and it looked majestic descending under the canopy. I repeated the next day with an I-218 Redline. It was another perfect flight. I highly recomend this rocket.
I spent a great deal of time looking at kits for my NAR Level 2 certification flight. I'd built a couple of LOC kit in that past and was very impressed with them, so after a friend recommend the I-ROC for my L2 attempt, I bought one. I will admit that I wasn't sure about the kit when I first opened box. The nose cone is one of the longest in the market for a 5.5 inch rocket, but everything I read said that it was super stable and capable of handling a J motor. Just before I built the fin can, I decided to purchased an LOC 5.3 inch baffle kit since I planned to use a chute release instead using dual deployment. Note: The baffle was just a personal preference, but the I-ROC is plenty stable without it. I've flown my I-ROC twice. The first was a test flight using an AT I500. The rocket flew perfectly straight. If you like a quick take off, the I-ROC really scoots on an I500. You can't blink when it comes off the pad, but the test flight gave me confidence the I-ROC could easily handle a J motor. Yesterday, I flew it on an AT J270 for my Level 2 certification flight. Launch and recovery were textbook perfect, and it was a great feeling watching the I-ROC take flight on the AT J270. I'm glad I chose the I-ROC for my L2 flight. You can't go wrong with this rocket kit.
I have built and flown two of these rockets and they fly straight, can handle landings well, the instructions are more than adequate and the vehicle looks good on the pad! I highly recommend this rocket kit! Also, a great rocket to build your level one experience!




