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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 73 motors that fit and appear to have enough thrust (694 motors didn't fit, 24 motors failed safety checks). 95 motor had thrust curves available and 184 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:   Astra G MP (NCR Phantom 4000)
Owner: Michael J Zaborowski
Body Diameter: 4.00in
Dry Weight: 28.8oz
MMT Diameter: 29.0mm
MMT Length: 12.00in
CD: 0.46
Web Site: http://www.youtube.com/watch?v=TPKhe6uvEUU

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
OK Cesaroni F120 32.5oz 72ft/s 183ft/s 14.8G 417ft 5.1s 5s
OK AeroTech F42 31.4oz 49ft/s 155ft/s 6.9G 417ft 5.3s 4s
OK Cesaroni F59 32.2oz 49ft/s 170ft/s 6.9G 422ft 5.3s 4s
OK AeroTech F50 31.7oz 51ft/s 198ft/s 7.2G 566ft 6.0s 5s
OK AeroTech F52 33.0oz 53ft/s 198ft/s 7.6G 589ft 6.2s 5s
warningsW Estes F50 31.7oz 54ft/s 219ft/s 7.9G 663ft 6.4s 5s
OK AeroTech G54 33.6oz 52ft/s 217ft/s 7.7G 670ft 6.5s 5s
OK Cesaroni G88 34.1oz 58ft/s 247ft/s 11.3G 704ft 6.5s 6s
OK AeroTech G104 33.5oz 66ft/s 252ft/s 12.1G 728ft 6.5s 6s
OK AeroTech G74 31.8oz 55ft/s 260ft/s 9.2G 755ft 6.8s 6s
OK AeroTech G53 33.9oz 55ft/s 232ft/s 8.2G 786ft 7.0s 5s
OK Cesaroni G80 33.8oz 54ft/s 273ft/s 9.5G 819ft 7.0s 6s
warningsW Estes G40 33.1oz 49ft/s 240ft/s 6.9G 880ft 7.5s 5s
OK AeroTech G40 33.1oz 49ft/s 240ft/s 6.9G 880ft 7.5s 5s
OK AeroTech G77 34.6oz 50ft/s 283ft/s 8.3G 882ft 7.3s 6s
OK AeroTech G77 33.1oz 55ft/s 297ft/s 9.5G 913ft 7.3s 6s
OK AeroTech G79 34.3oz 56ft/s 294ft/s 9.3G 943ft 7.4s 6s
OK Cesaroni G83 33.9oz 60ft/s 298ft/s 9.6G 949ft 7.4s 6s
OK Cesaroni G68 34.2oz 50ft/s 284ft/s 8.7G 952ft 7.6s 6s
OK AeroTech G79 33.1oz 50ft/s 288ft/s 7.7G 956ft 7.6s 6s
OK Cesaroni G57 33.9oz 55ft/s 271ft/s 8.3G 964ft 7.7s 6s
OK Cesaroni G250 33.7oz 96ft/s 357ft/s 29.6G 980ft 7.1s 7s
OK AeroTech G76 33.9oz 73ft/s 293ft/s 15.0G 1,034ft 7.6s 6s
OK Cesaroni G126 33.9oz 73ft/s 345ft/s 15.9G 1,040ft 7.4s 6s
OK AeroTech G64 34.1oz 62ft/s 289ft/s 10.4G 1,065ft 7.8s 5s
OK AeroTech G75 33.4oz 58ft/s 317ft/s 9.9G 1,088ft 7.8s 6s
OK Cesaroni G131 35.8oz 68ft/s 357ft/s 13.8G 1,094ft 7.7s 7s
OK AeroTech G78 33.2oz 59ft/s 334ft/s 10.0G 1,111ft 7.8s 6s
OK AeroTech G125 33.2oz 70ft/s 379ft/s 15.0G 1,137ft 7.7s 7s
OK AeroTech G80 33.3oz 61ft/s 346ft/s 10.2G 1,177ft 8.0s 6s
OK Cesaroni G106 35.3oz 59ft/s 379ft/s 12.4G 1,217ft 8.1s 7s
OK KBA G82 36.9oz 50ft/s 353ft/s 8.3G 1,248ft 8.4s 6s
OK KBA G135 36.7oz 66ft/s 400ft/s 14.1G 1,250ft 8.1s 7s
OK AeroTech G75 37.0oz 48ft/s 351ft/s 6.6G 1,324ft 8.8s 6s
OK AeroTech H165 35.9oz 79ft/s 450ft/s 18.0G 1,398ft 8.3s 7s
OK Cesaroni G125 35.6oz 72ft/s 430ft/s 15.3G 1,400ft 8.4s 7s
OK Cesaroni G118 35.4oz 65ft/s 427ft/s 14.9G 1,406ft 8.5s 7s
OK Cesaroni H175 37.5oz 80ft/s 462ft/s 19.8G 1,416ft 8.3s 7s
OK Cesaroni H410 35.2oz 130ft/s 525ft/s 52.1G 1,430ft 8.1s 8s
OK Cesaroni H133 35.5oz 73ft/s 440ft/s 18.5G 1,434ft 8.5s 7s
OK Cesaroni G54 35.6oz 65ft/s 325ft/s 11.2G 1,454ft 9.1s 6s
OK Cesaroni H163 35.3oz 78ft/s 470ft/s 21.1G 1,457ft 8.4s 7s
OK AeroTech G138 34.0oz 70ft/s 489ft/s 16.9G 1,477ft 8.4s 7s
OK Cesaroni H90 34.5oz 66ft/s 414ft/s 15.2G 1,480ft 8.7s 7s
OK AeroTech H128 36.0oz 77ft/s 460ft/s 17.1G 1,486ft 8.5s 7s
OK AeroTech H238 35.7oz 92ft/s 489ft/s 22.7G 1,492ft 8.4s 7s
OK Cesaroni H87 36.0oz 59ft/s 408ft/s 11.8G 1,492ft 8.9s 7s
OK Cesaroni H123 36.8oz 64ft/s 456ft/s 12.6G 1,518ft 8.8s 7s
OK Cesaroni H54 36.1oz 57ft/s 334ft/s 9.1G 1,521ft 9.4s 6s
OK AeroTech H115 36.0oz 66ft/s 454ft/s 11.3G 1,550ft 8.8s 7s
OK AeroTech H97 38.5oz 58ft/s 434ft/s 9.2G 1,599ft 9.2s 7s
OK Cesaroni H118 36.9oz 71ft/s 458ft/s 15.5G 1,605ft 8.9s 7s
OK Cesaroni H237 39.1oz 88ft/s 558ft/s 23.7G 1,677ft 8.8s 8s
OK AeroTech H220 37.6oz 97ft/s 556ft/s 28.4G 1,698ft 8.8s 8s
OK AeroTech H210 37.4oz 90ft/s 563ft/s 23.3G 1,727ft 8.9s 8s
OK Cesaroni H151 37.1oz 79ft/s 520ft/s 18.7G 1,736ft 9.0s 8s
OK KBA H130 53.8oz 65ft/s 425ft/s 13.7G 1,782ft 9.8s 8s
OK Cesaroni H170 36.9oz 88ft/s 554ft/s 22.1G 1,797ft 9.0s 8s
OK AeroTech H182 36.1oz 76ft/s 584ft/s 17.7G 1,801ft 9.0s 8s
OK Cesaroni H160 38.3oz 79ft/s 551ft/s 16.4G 1,807ft 9.2s 8s
OK Cesaroni H135 37.6oz 72ft/s 523ft/s 14.8G 1,816ft 9.3s 8s
OK AeroTech H180 37.6oz 88ft/s 579ft/s 23.3G 1,842ft 9.1s 8s
OK AeroTech H250 37.8oz 110ft/s 615ft/s 29.8G 1,852ft 9.0s 8s
OK KBA H225 39.9oz 79ft/s 619ft/s 22.6G 1,916ft 9.3s 8s
OK AeroTech H195 35.7oz 98ft/s 629ft/s 24.6G 1,917ft 9.1s 8s
OK AeroTech H135 36.2oz 71ft/s 525ft/s 14.2G 1,938ft 9.5s 7s
OK Cesaroni H194 38.8oz 86ft/s 619ft/s 25.2G 2,017ft 9.3s 8s
OK Cesaroni H53 38.8oz 48ft/s 398ft/s 7.7G 2,035ft 10.8s 6s
OK Cesaroni H200 38.4oz 90ft/s 628ft/s 26.2G 2,048ft 9.4s 8s
OK Cesaroni H255 36.9oz 104ft/s 700ft/s 35.6G 2,095ft 9.3s 8s
OK Cesaroni H140 38.5oz 88ft/s 583ft/s 21.9G 2,142ft 9.7s 8s
OK AeroTech I205 39.9oz 93ft/s 738ft/s 31.9G 2,484ft 9.9s 8s
warningsW,D Estes G80 33.2oz 8:1 thrust/weight ratio (no data)

W Motor total weight unknown, lift-off Weight not accurate.

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 Estes E16 speed at end of launch guide too slow (24ft/s)
failedG AeroTech E23 speed at end of launch guide too slow (34ft/s)
failedG AeroTech E16 speed at end of launch guide too slow (28ft/s)
failedG AeroTech F23 speed at end of launch guide too slow (37ft/s)
failedG Cesaroni F36 speed at end of launch guide too slow (36ft/s)
failedG AeroTech F27 speed at end of launch guide too slow (34ft/s)
failedG Estes F15 speed at end of launch guide too slow (21ft/s)
failedG AeroTech F37 speed at end of launch guide too slow (37ft/s)
failedG AeroTech F62 speed at end of launch guide too slow (48ft/s)
failedG Cesaroni F36 speed at end of launch guide too slow (37ft/s)
failedG AeroTech F20 speed at end of launch guide too slow (38ft/s)
failedG Cesaroni F32 speed at end of launch guide too slow (33ft/s)
failedG Cesaroni F29 speed at end of launch guide too slow (31ft/s)
failedG Cesaroni F31 speed at end of launch guide too slow (34ft/s)
failed5 Estes F26 average thrust fails 5:1 thrust/weight ratio (3:1)
failedG AeroTech F26 speed at end of launch guide too slow (33ft/s)
failedG AeroTech F22 speed at end of launch guide too slow (28ft/s)
failedG Apogee F10 speed at end of launch guide too slow (25ft/s)
failedG AeroTech F25 speed at end of launch guide too slow (44ft/s)
failedG AeroTech F40 speed at end of launch guide too slow (47ft/s)
failedG AeroTech G38 speed at end of launch guide too slow (41ft/s)
failedG AeroTech G25 speed at end of launch guide too slow (35ft/s)
failedG Cesaroni G33 speed at end of launch guide too slow (33ft/s)
failedG Cesaroni H42 speed at end of launch guide too slow (40ft/s)

G These simulations were run with a launch guide length of 6ft (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.

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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