I Class Rocket Motor

KBA I550R

Kosdon by AeroTech
Redline
Ø 38mm
Total Impulse
575.0Ns
Burn Time
0.98s
Avg Thrust
587.0N
Max Thrust
689.0N

Thrust Profile (N)

0.98s Burn Window

Engineered by Kosdon by AeroTech, the I550R is a 38mm solid rocket motor designed for high-power rocketry (HPR). As an official I-class motor, it delivers a total impulse of 575.0 Ns over a 0.98 second burn window.

With an average thrust of 587.0 N and a peak of 689.0 N, it features a dual-peak thrust curve optimal for general sport flying. It utilizes the Redline propellant formulation, dictating its specific impulse and exhaust signature.

Technical Specifications

National Association of Rocketry
Diameter 38 mm
Length 370 mm
Hardware AMW 38-640
Delays (s) 20
Specific Impulse 198.7 s
Peak Thrust 644.23 N
Peak Time T+ 0.613s
T/W Ratio 84.09
Propellant Redline
Profile dual-peak
Type reload
Sparky No

Mass Budget

711.6g Total
Casing (Dry)
416.6g
58.5%
Propellant
295.0g
41.5%
Live Sizing
Flight Envelope

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Comparable I-Class Alternatives

I235WC

Gorilla

I
No Curve Data
Total: 324 Ns
Ø 38mm

I200W

AeroTech

I
regressive
Total: 325 Ns
Ø 29mm

I180W

AeroTech

I
dual-peak
Total: 326 Ns
Ø 38mm

I385F

Kosdon

I
No Curve Data
Total: 326 Ns
Ø 29mm

I223GT

Gorilla

I
neutral
Total: 328 Ns
Ø 38mm

I161W

AeroTech

I
dual-peak
Total: 329 Ns
Ø 38mm
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