Total Impulse
292.0Ns
Burn Time
1.15s
Avg Thrust
252.0N
Max Thrust
793.0N
Thrust Profile (N)
1.15s Burn WindowEngineered by Contrail Rockets, the H277-HP is a 38mm solid rocket motor designed for high-power rocketry (HPR). As an official H-class motor, it delivers a total impulse of 292.0 Ns over a 1.15 second burn window.
With an average thrust of 252.0 N and a peak of 793.0 N, it features a regressive thrust curve optimal for heavy rockets requiring high off-the-pad acceleration.
Technical Specifications
Tripoli Rocketry Association, Inc.Diameter 38 mm
Length 719 mm
Hardware 38 28 F HP (370CC)
Delays (s) P
Specific Impulse 270.6 s
Peak Thrust 765.51 N
Peak Time —
T/W Ratio 36.18
Propellant Standard
Profile regressive
Type hybrid
Sparky No
Mass Budget
710g TotalCasing (Dry)
600.0g
84.5%
Propellant
110.0g
15.5%
Live Sizing
Flight Envelope
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