D Class Rocket Motor

Quest D5-P

Quest Aerospace
black powder
Ø 20mm
Total Impulse
19.6Ns
Burn Time
3.98s
Avg Thrust
4.9N
Max Thrust
11.5N

Thrust Profile (N)

3.98s Burn Window

Engineered by Quest Aerospace, the D5-P is a 20mm solid rocket motor designed for model rocketry. As an official D-class motor, it delivers a total impulse of 19.6 Ns over a 3.98 second burn window.

With an average thrust of 4.9 N and a peak of 11.5 N, it features a regressive thrust curve optimal for heavy rockets requiring high off-the-pad acceleration. It utilizes the black powder propellant formulation, dictating its specific impulse and exhaust signature.

Technical Specifications

National Association of Rocketry
Diameter 20 mm
Length 88 mm
Hardware Single Use
Delays (s) P
Specific Impulse 80 s
Peak Thrust 11.48 N
Peak Time T+ 0.391s
T/W Ratio 13.22
Propellant black powder
Profile regressive
Type SU
Sparky No

Mass Budget

38g Total
Casing (Dry)
13.0g
34.2%
Propellant
25.0g
65.8%
Live Sizing
Flight Envelope

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