E Class Rocket Motor

AeroTech E7-RCT

AeroTech
Blue Thunder
Ø 24mm
Total Impulse
29.4Ns
Burn Time
5.43s
Avg Thrust
5.4N
Max Thrust
11.6N

Thrust Profile (N)

5.43s Burn Window

Engineered by AeroTech, the E7-RCT is a 24mm solid rocket motor designed for model rocketry. As an official E-class motor, it delivers a total impulse of 29.4 Ns over a 5.43 second burn window.

With an average thrust of 5.4 N and a peak of 11.6 N, it features a regressive thrust curve optimal for heavy rockets requiring high off-the-pad acceleration. It utilizes the Blue Thunder propellant formulation, dictating its specific impulse and exhaust signature.

Technical Specifications

National Association of Rocketry
Diameter 24 mm
Length 70 mm
Hardware RMS-R/C-24/20-40
Delays (s) P
Specific Impulse 175 s
Peak Thrust 11.58 N
Peak Time T+ 0.206s
T/W Ratio 11.39
Propellant Blue Thunder
Profile regressive
Type reload
Sparky No

Mass Budget

48.4g Total
Casing (Dry)
31.3g
64.7%
Propellant
17.1g
35.3%
Live Sizing
Flight Envelope

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Comparable E-Class Alternatives

24E22-13A

Cesaroni

E
dual-peak
Total: 24 Ns
Ø 24mm

25E75-17A

Cesaroni

E
dual-peak
Total: 25 Ns
Ø 24mm

26E31-15A

Cesaroni

E
regressive
Total: 26 Ns
Ø 24mm

E12

Estes

E
regressive
Total: 27 Ns
Ø 24mm

E26W

AeroTech

E
dual-peak
Total: 28 Ns
Ø 24mm

E9

Estes

E
regressive
Total: 28 Ns
Ø 24mm
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