H Class Rocket Motor

AeroTech H170M

AeroTech
Metalstorm
Ø 38mm
Total Impulse
319.9Ns
Burn Time
1.91s
Avg Thrust
166.8N
Max Thrust
208.0N

Thrust Profile (N)

1.91s Burn Window

Engineered by AeroTech, the H170M is a 38mm solid rocket motor designed for high-power rocketry (HPR). As an official H-class motor, it delivers a total impulse of 319.9 Ns over a 1.91 second burn window.

With an average thrust of 166.8 N and a peak of 208.0 N, it features a dual-peak thrust curve optimal for general sport flying. It utilizes the Metalstorm propellant formulation, dictating its specific impulse and exhaust signature.

Technical Specifications

Tripoli Rocketry Association, Inc.
Diameter 38 mm
Length 191 mm
Hardware RMS-38/360
Delays (s) 6,8,10,12,14
Specific Impulse 178.7 s
Peak Thrust 205.82 N
Peak Time T+ 0.616s
T/W Ratio 51.52
Propellant Metalstorm
Profile dual-peak
Type reload
Sparky Yes

Mass Budget

330g Total
Casing (Dry)
147.5g
44.7%
Propellant
182.5g
55.3%
Live Sizing
Flight Envelope

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Comparable H-Class Alternatives

H155F

Kosdon

H
dual-peak
Total: 161 Ns
Ø 29mm

H300-HP

Contrail

H
neutral
Total: 161 Ns
Ø 38mm

H222-HP

Contrail

H
regressive
Total: 161 Ns
Ø 38mm

H55W

AeroTech

H
regressive
Total: 162 Ns
Ø 29mm

163H133-14A

Cesaroni

H
dual-peak
Total: 163 Ns
Ø 29mm

164H90-12A

Cesaroni

H
dual-peak
Total: 164 Ns
Ø 29mm
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