Section through the engine (to scale, mirrored about the axis)
field
speed
1x
1/2x
1/4x
1/8x
1/16x
pause
Gauge pressure at the probes (kPa) vs time (ms); shaded: the animated window
Thrust, one-cycle means (lbf) vs time (ms)
Against the ARD-307 measurements
Bore profiles, to scale: start (grey, dashed) and optimum (orange)
Every design scored
Long reruns: free thrust (solid), plates (dashed), lbf vs time (ms)
Dimensions (mm; fuel g/s)
Results, 80 ms runs scored over the last 40 ms