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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We only found one motor that fits and appears to have enough thrust (688 motors didn't fit, 102 motors failed safety checks). 101 motor had thrust curves available and 179 flight simulations were performed. Browse the motors that did and didn't work right here or download the results as a spreadsheet.

The Rocket

Rocket Name:   mad scientist 1
Owner: chopperz
Body Diameter: 8.00in
Dry Weight: 27.50lb
MMT Diameter: 54.0mm
MMT Length: 18.00in
CD: 28.00

Motors That Work

These motors fit your rocket and appear to have enough thrust to lift it safely. If thrust curves are available, a quick simulation has been run to give a rough idea of the performance of your rocket on this motor. We encourage you to run a more complete simulation with any motor you plan to use; see the simulators page for more info.

  Motor Weight Launch Velocity Accel Altitude Time Delay
warningsD Gorilla K695 30.80lb 5:1 thrust/weight ratio (no data)

D No simulation data found for this motor.

Don't like the units? Login to set your preferences. Don't understand the results? See the motor guide help page.

Motors That Fail

These motors fit your rocket, but failed one safety check or another. They may actually work, but you should use them only with caution. We encourage you to run a more complete simulation to verify flight safety; see the simulators page for more info.

  Motor Reason
failedG AeroTech I117 speed at end of launch guide too slow (8ft/s)
failedG Cesaroni I140 speed at end of launch guide too slow (9ft/s)
failedG AeroTech I215 speed at end of launch guide too slow (21ft/s)
failedG AeroTech I599 speed at end of launch guide too slow (47ft/s)
failedG AeroTech I229 speed at end of launch guide too slow (23ft/s)
failedG AeroTech I115 speed at end of launch guide too slow (10ft/s)
failedG AeroTech I170 speed at end of launch guide too slow (17ft/s)
failedG Cesaroni I150 speed at end of launch guide too slow (13ft/s)
failedG Cesaroni I445 speed at end of launch guide too slow (37ft/s)
failedG Cesaroni I218 speed at end of launch guide too slow (22ft/s)
failedG Cesaroni I120 speed at end of launch guide too slow (4ft/s)
failedG Cesaroni I165 speed at end of launch guide too slow (14ft/s)
failedG Cesaroni I100 speed at end of launch guide too slow (16ft/s)
failedG AeroTech I65 speed at end of launch guide too slow (9ft/s)
failedG Cesaroni J250 speed at end of launch guide too slow (22ft/s)
failedG Cesaroni J145 speed at end of launch guide too slow (20ft/s)
failedG AeroTech J250 speed at end of launch guide too slow (27ft/s)
failedG AeroTech J90 speed at end of launch guide too slow (13ft/s)
failedG Cesaroni J280 speed at end of launch guide too slow (24ft/s)
failedG AeroTech J250 speed at end of launch guide too slow (22ft/s)
failedA Cesaroni J1055 rocket doesn't reach a safe altitude (111ft)
failedG AeroTech J315 speed at end of launch guide too slow (29ft/s)
failedG AeroTech J180 speed at end of launch guide too slow (26ft/s)
failedG AeroTech J275 speed at end of launch guide too slow (26ft/s)
failedG AeroTech J460 speed at end of launch guide too slow (38ft/s)
failedG Cesaroni J240 speed at end of launch guide too slow (23ft/s)
failedG Cesaroni J430 speed at end of launch guide too slow (35ft/s)
failedG Cesaroni J210 speed at end of launch guide too slow (23ft/s)
failedG Cesaroni J293 speed at end of launch guide too slow (26ft/s)
failedA AeroTech J1299 rocket doesn't reach a safe altitude (123ft)
failedG Gorilla J365 speed at end of launch guide too slow (29ft/s)
failedG Cesaroni J244 speed at end of launch guide too slow (21ft/s)
failedG Loki J350 speed at end of launch guide too slow (29ft/s)
failedA AMW J1365 rocket doesn't reach a safe altitude (132ft)
failedG Gorilla J167 speed at end of launch guide too slow (25ft/s)
failedG AMW J400 speed at end of launch guide too slow (30ft/s)
failedG Cesaroni J360 speed at end of launch guide too slow (28ft/s)
failedG Gorilla J465 speed at end of launch guide too slow (35ft/s)
failedG AMW J475 speed at end of launch guide too slow (36ft/s)
failedG Gorilla J395 speed at end of launch guide too slow (30ft/s)
failedG Cesaroni J380 speed at end of launch guide too slow (28ft/s)
failedG AeroTech J450 speed at end of launch guide too slow (34ft/s)
failedG Gorilla J485 speed at end of launch guide too slow (36ft/s)
failedG AeroTech J135 speed at end of launch guide too slow (19ft/s)
failedG AMW J395 speed at end of launch guide too slow (34ft/s)
failedA Cesaroni J1520 rocket doesn't reach a safe altitude (146ft)
failedG AMW J325 speed at end of launch guide too slow (34ft/s)
failedA Loki J820 rocket doesn't reach a safe altitude (171ft)
failedG AMW J440 speed at end of launch guide too slow (47ft/s)
failedG Loki J525 speed at end of launch guide too slow (40ft/s)
failedG Gorilla J535 speed at end of launch guide too slow (41ft/s)
failedG AeroTech J401 speed at end of launch guide too slow (34ft/s)
failedG Gorilla J450 speed at end of launch guide too slow (35ft/s)
failedG Loki J175 speed at end of launch guide too slow (27ft/s)
failedG AeroTech J540 speed at end of launch guide too slow (43ft/s)
failedA AMW K1720 rocket doesn't reach a safe altitude (155ft)
failedG Cesaroni J355 speed at end of launch guide too slow (32ft/s)
failedG Cesaroni J295 speed at end of launch guide too slow (31ft/s)
failedA AMW J745 rocket doesn't reach a safe altitude (183ft)
failedG Loki J300 speed at end of launch guide too slow (29ft/s)
failedG Cesaroni J140 speed at end of launch guide too slow (17ft/s)
failedA AeroTech J1799 rocket doesn't reach a safe altitude (143ft)
failedA AeroTech J800 rocket doesn't reach a safe altitude (195ft)
failedG AeroTech J415 speed at end of launch guide too slow (35ft/s)
failedG AMW J475 speed at end of launch guide too slow (37ft/s)
failedG Cesaroni J449 speed at end of launch guide too slow (36ft/s)
failedA Cesaroni J760 rocket doesn't reach a safe altitude (194ft)
failedG Cesaroni K360 speed at end of launch guide too slow (30ft/s)
failedG AeroTech K456 speed at end of launch guide too slow (34ft/s)
failedG AeroTech K400 speed at end of launch guide too slow (37ft/s)
failedG Gorilla K222 speed at end of launch guide too slow (29ft/s)
failed5 AMW K590 average thrust fails 5:1 thrust/weight ratio (4:1)
failedG Gorilla K520 speed at end of launch guide too slow (36ft/s)
failedG Cesaroni K454 speed at end of launch guide too slow (36ft/s)
failedG AMW K665 speed at end of launch guide too slow (42ft/s)
failedA AeroTech K2050 rocket doesn't reach a safe altitude (175ft)
failedG Gorilla K555 speed at end of launch guide too slow (38ft/s)
failedA Cesaroni K2045 rocket doesn't reach a safe altitude (174ft)
failedG Cesaroni K530 speed at end of launch guide too slow (36ft/s)
failedG Gorilla K630 speed at end of launch guide too slow (44ft/s)
failedG AeroTech K185 speed at end of launch guide too slow (25ft/s)
failedG AeroTech K535 speed at end of launch guide too slow (42ft/s)
failedG KBA K700 speed at end of launch guide too slow (46ft/s)
failedG AMW K535 speed at end of launch guide too slow (40ft/s)
failedA AeroTech K1100 rocket doesn't reach a safe altitude (224ft)
failedG AMW K455 speed at end of launch guide too slow (43ft/s)
failedG AeroTech K513 speed at end of launch guide too slow (39ft/s)
failedG AeroTech K695 speed at end of launch guide too slow (47ft/s)
failedG Cesaroni K160 speed at end of launch guide too slow (21ft/s)
failedG AeroTech K550 speed at end of launch guide too slow (43ft/s)
failedA AMW K935 rocket doesn't reach a safe altitude (224ft)
failedG Cesaroni K500 speed at end of launch guide too slow (39ft/s)
failedG AeroTech K540 speed at end of launch guide too slow (46ft/s)
failedG Cesaroni K400 speed at end of launch guide too slow (34ft/s)
failedA Cesaroni K940 rocket doesn't reach a safe altitude (233ft)
failedG Cesaroni K445 speed at end of launch guide too slow (41ft/s)
failedG Cesaroni K630 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni K520 speed at end of launch guide too slow (39ft/s)
failedA AeroTech K805 rocket doesn't reach a safe altitude (258ft)
failedA AeroTech K1103 rocket doesn't reach a safe altitude (245ft)
failedA Cesaroni K740 rocket doesn't reach a safe altitude (276ft)
failedA Cesaroni K1200 rocket doesn't reach a safe altitude (263ft)

G These simulations were run with a launch guide length of 8ft (rod, rail or tower). If this is not correct, launch guide lengths can be specified for your saved rockets. (The minimum velocity required is approximately 15m/s or 50ft/s.)

5 The 5:1 thrust-to-weight ratio check is a useful rule of thumb, but it does break down for motors with unusual thrust curves. For example, motors with a high initial thrust and a long tail-off may fail this test but still be safe for use.

A The minimum altitude check is used to ensure that the rocket flies high enough to ensure time for a safe recovery. In addition, many barometric altimeters require a minimum altitude to detect lift-off. (The minimum altitude is 10m or 33ft for an A motor and doubles for each impulse class).

Download the Results

The data is presented in a compact form in the tables above, broken down by motors that worked and those that did not. If you would like to analyze the data further, this section provides download links for files in a generic spreadsheet format (comma-separated value, or CSV) that can be opened with almost any spreadsheet program.

CSV Excel   Download full details of the simulation runs with the various motors:
that worked, that failed, or all of them.
 
RockSim   Download the list of motors that fit your rocket into a batch for use with SMARTSim. (See the Simulators page for more info.)

You should download these files to your machine and then open them. Normally, clicking the link will prompt you to do this. However, if your browser insists on opening the file as plain text, you can right-click (control-click on the Mac) on the link and chose Save File As (or similar).

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