High Power Model Rocketry

5.5" IRIS

5.5" IRIS - Main image
$212.29 $331.7 In stock

5.5″ IRIS is here! Stock 75mm motor mount. Easily adaptable down to 54mm or even 38mm with additional motor mount adaptors. Construction details include a LOC N FIN/RING system that assures alignment is a breeze and sturdier than ever. You can build the motor fin can out side the airframe, with some modification to the airframe, and slide it up the booster. Epoxy in, apply small external fillets and done! Full recovery including 2x 25' tubular nylon sections, a 78" main parachute and 24" drogue. 34″ booster, 34″ & 20" payloads plus 21.5″ long cone. New 5/8″ tubular nylon Y Harness included in with U-bolts. The IRIS is the perfect kit to make your Level 2 and Level 3 certification flight!

RockSim


DESCRIPTION

IRIS rocket kit

Complexity: Intermediate
Diameter: 5.5″
Height: 110" (including the switch band)
Weight: 18lbs
Motor Mount: 75MM
Parachute Size: 78" Main 24" Drogue Ripstop Nylon ***Colors are random***
Shock Cord Type: 2 x TN-25 25’ of Tubular Nylon with sewn loops
Shock Cord Mount: SCM4 U-Bolts
Electronics Bay: Yes
Fin Thickness:
 3/8″
Ring Thickness: 1/4″
LaunchPad: RB-1500 for 15 series rails
Instructions: No - LOC Custom Kit
Vinyl Decal: Yes

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Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.8 / 5 · 5 reviews)

Sofia ★★★★★

Wasn't sure about tackling a 75mm build but this thing went together in a weekend. The stock mount takes my 54mm adaptor without any drama, and the fins lined up dead straight on the first try.

Victoria W. ★★★★★

The fin/ring system made assembly almost foolproof—everything lined up without me wrestling it into place. I slapped in the 75mm mount as-is, but having the option to drop to 54mm later is a nice safety net for when I want to fly something lighter.

Brian R. ★★★★★

The 75mm motor mount felt rock solid right out of the box, and I didn't have to fight any alignment issues thanks to that fin ring system. Took me a lazy afternoon to assemble, and it’s ready for its first flight this weekend.