J Class Rocket Motor

Cesaroni 1261J449-15A

Cesaroni Technology
Blue Streak
Ø 54mm
Total Impulse
1260.5Ns
Burn Time
2.75s
Avg Thrust
448.5N
Max Thrust
589.5N

Thrust Profile (N)

2.75s Burn Window

Engineered by Cesaroni Technology, the 1261J449-15A is a 54mm solid rocket motor designed for high-power rocketry (HPR). As an official J-class motor, it delivers a total impulse of 1260.5 Ns over a 2.75 second burn window.

With an average thrust of 448.5 N and a peak of 589.5 N, it features a dual-peak thrust curve optimal for general sport flying. It utilizes the Blue Streak propellant formulation, dictating its specific impulse and exhaust signature.

Technical Specifications

Tripoli Rocketry Association, Inc.
Diameter 54 mm
Length 321 mm
Hardware Pro54-3G
Delays (s) 5,6,7,8,9,10,11,12,13,14,15
Specific Impulse 205.9 s
Peak Thrust 586.87 N
Peak Time T+ 0.046s
T/W Ratio 40.75
Propellant Blue Streak
Profile dual-peak
Type reload
Sparky No

Mass Budget

1122g Total
Casing (Dry)
498.0g
44.4%
Propellant
624.0g
55.6%
Live Sizing
Flight Envelope

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Comparable J-Class Alternatives

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