K Class Rocket Motor

AeroTech K400C

Name: AeroTech K400C Rocket Motor
Creator: Veenie Aerospace
License: https://creativecommons.org/licenses/by/4.0/

AeroTech

Classic

Ø 54mm

Total Impulse

1304.0Ns

Burn Time

3.20s

Avg Thrust

409.0N

Max Thrust

546.0N

Thrust Profile (N)

3.20s Burn Window

Engineered by AeroTech, the K400C is a 54mm solid rocket motor designed for high-power rocketry (HPR). As an official K-class motor, it delivers a total impulse of 1304.0 Ns over a 3.20 second burn window.

With an average thrust of 409.0 N and a peak of 546.0 N, it features a regressive thrust curve optimal for general sport flying. It utilizes the Classic propellant formulation, dictating its specific impulse and exhaust signature.

Technical Specifications

Tripoli Rocketry Association, Inc.

Diameter 54 mm

Length 359 mm

Hardware Single Use

Delays (s) 6,8,10,12,14

Specific Impulse 269.6 s

Peak Thrust 548.47 N

Peak Time T+ 0.034s

T/W Ratio 34.92

Propellant Classic

Profile regressive

Type SU

Sparky No

Mass Budget

1194g Total

Casing (Dry)

701.0g

58.7%

Propellant

493.0g

41.3%

Live Sizing

Flight Envelope

Body Diameter 38 mm

Motor Mount 29 mm

Dry Mass 500 g

Target Apogee 1000 m

Design wings in your spreadsheet

AeroSheet loads airfoils directly into Google Sheets. Polars, 3D splines, Fusion 360 export, without leaving your spreadsheet.

Install in Google Sheets coming soon

Comparable K-Class Alternatives

1176K1720-P

AMW

dual-peak

Total: 1176 Ns

Ø 54mm

1281K360-13A

Cesaroni

neutral

Total: 1281 Ns

Ø 54mm

K456DM

AeroTech

regressive

Total: 1281 Ns

Ø 54mm

835CC125J-K240

Hypertek

regressive

Total: 1292 Ns

Ø 54mm

SK-54-1750

AMW

neutral

Total: 1300 Ns

Ø 54mm

K222WC

Gorilla

dual-peak

Total: 1314 Ns

Ø 54mm

Veenie Kit

Need a custom engineering simulator?

The 3D engine on this page is built by Veenie Aerospace. We build bespoke, browser-native digital twins, aerodynamic simulators, and AI physics tools for UAV startups and defense contractors.

ivan@veenie.space