iROC

iROC
Diameter:5.54"Type:Sport
Length:55"Status:Repairs / 11 flights
Motor Mount:38mmBuild Dates:1998-09-01 to 1998-12-31

The iROC was my fifth LOC/Precision kit, and the first in the 5.5" diameter (my favorite, I think). My dad and I built it pretty much stock over the fall of 1998, being sure to include a hatch to hold our new ALTS2 altimeter. It has seen many flights, some perfect, some not-so-perfect, and it has returned from the dead a few times. My dad repainted it recently and added lettering and an Apple sticker to one of the fins, procured during my stint working there. Due to its large diameter and eyebolt shock cord attachment, it's a very versatile and easy to prep rocket, and remains one of my favorites today.

Flights

Event: ROC August 2014

Date: August 9th, 2014

Motor: AT I280

Flight number two for the day: old-school I-ROC on a new-school AT Dark Matter DMS motor. Rick O'Neil was on the mic this time, and he enjoyed the name of the new propellant. The motor lit right up and spewed sparks in the traditional DM fashion, with the crackle not coming in till later on. (Hey AT! Add some Mg and it'll crackle all the way up!) The chute came out at the top and again with the lazy drifting back to earth -- so relaxing.

Event: ROCStock 29

Date: June 13th, 2009

Motor: CTI I297

Upon arriving at the launch site and hearing that there were SKIDMARKS available, I of course hustled over to Jack and bought the biggest one I could get. This went into my CTI Pro38 5g case, which then went into the iROC for maximum dramatic effect. And for maximum dramatic effect, of course, I had to wait for the sun to almost set before pushing the button. The winds were still strong, but off we went anyways - and it was spectacular! However, the landing was less than forgiving, as the chute dragged the rocket a quarter mile across the lakebed, scraping up the nice shiny finish. But hey, with some Krylon it'll be good as new. And WOW that was cool!

iROC on a CTI I297

others: ignition | in-flight

Event: ROC August 2008

Date: August 9th, 2008

Motor: AT J420

Apogee: ~3,900 ft

This was a very old J420R - from the era preceding the "bag-the-delay-separately-so-the-ferrocene-doesn't-migrate-to-it" days - and so the first order of business for prep was to get a new delay element from Jack at What's Up Hobbies. With that task taken care of, the motor was quickly assembled, wadding stuffed, chutes packed, and the rocket on the pad. At the end of the countdown, the motor came on quickly and accelerated the iROC into the air faster than ever before. The poor thing was HAMMERED by the J420. But it all held together, and speed is apparently a good thing with this kit, as it was heading dead straight into the sky. The chute appeared at apogee and the iROC returned safely to earth.

iROC on an AT J420

others: ignition

Event: ROC April 2008

Date: April 12th, 2008

Motor: AT I245

With the winds beginning to pick up (and seeing how far away the LOC IV had landed on its last flight...) I elected to keep my next flight a little lower. I wanted to put the I245G in something lightweight (like my Vulcanite), but I ended up using the iROC instead to keep the altitude reasonable. This turned out to be a good thing, as it still drifted a half mile away! The boost was snappy, though the peak altitude was a little low, and chute deployment was on time. A nice, quick flight on the new propellant.

Event: ROC March 2007

Date: March 10th, 2007

Motor: AT J350

This would be the second flight of the iROC in its decal state. I remember a long time ago, when I was first going to ROC launches, Hulan Matthies put up an I-Roc on a J350W and it was freaking awesome. So I figured we should try the same thing. As it left the pad, the flight was dead-nuts straight, which is unusual for this rocket, which usually "wanders" a little bit as it's flying. Apparently more power (and corrective moment... and base drag) is really helpful in this case. The rocket ejected an R7C spot on at apogee, and landed nearby. This is really the right motor for this rocket!

iROC on an AT J350

others: recovery

Event: ROC July 2006

Date: July 8th, 2006

Motor: AT I284

Well, while we were flying freshly-painted rockets, I figured it'd be a good chance to debut the new iROC look that my dad had been laboring over for so long. (What can I say, I just don't have that kind of patience :)) Everyone LOVED the decals, and John Van Norman supplied a free ROC sticker to put on the tail for added effect. The motor of choice this time was an I284W - the classic iROC motor - which turned in a beautiful flight to about 2800 feet with successful recovery.

iROC on an AT I284

others: preflight

Event: ROC May 2002

Date: May 11th, 2002

Motor: AT I300

After fighting with the RRC in the Arcas all morning and having two ejection charges go off in or near my face, I was really frustrated with avionics and decided to prep something quick and easy. The iROC on an I300T seemed ideal. My (sunburned) girlfriend Katharine accompanied me to the pad, setup was easy, and launch was quick. The rocket kicked up a nice cloud of dust as it left, and ejected right at apogee, for a good flight.

iROC on an AT I300

others: preflight | recovery

Event: LeT'R ROC

Date: August 28th, 1999

Motor: AT I211

We had picked this motor for the Expediter, but to switch it up a bit and slow things down so we could watch the whole flight, I decided to put it in the iROC instead. It was a good flight to 2207 feet.

Event: ROCStock IX

Date: June 13th, 1999

Motor: AT I284

The iROC made its umpteenth appearance on the classic AeroTech white motor. It was a good flight early in the morning to 2778 feet.

Event: ROC February 1999

Date: February 13th, 1999

Motor: AT I284

Apogee: 2,823 ft

The iROC flies so well on this motor, we chose to do it again in February. After one misfire, the rocket lifted off the pad, cocked off the rod a bit to the west, and raced to apogee. Recovery was nominal.

Event: ROCStock VIII

Date: November 15th, 1998

Motor: AT I284

Hulan was one of our first inspirations to come out to Lucerne, and continued to be one at ROC launches, putting up flight after awesome flight with perfect apogee ejections. His I-Roc was a memorable flier, and so when I finally got one, I was excited to drag race him on I284Ws. Unfortunately, his never went on this round, but ours made a good flight nonetheless.

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