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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 70 motors that fit and appear to have enough thrust (741 motors didn't fit). All motors had thrust curves available and 129 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:   Sky Scraper
Owner: Kevin Katz
Body Diameter: 4.00in
Dry Weight: 69.0oz
MMT Diameter: 75.0mm
MMT Length: 30.00in
CD: 0.75

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 AeroTech K1499 130.4oz 151ft/s 1,110ft/s 47.6G 4,177ft 12.9s 12s
OK Cesaroni K735 157.5oz 82ft/s 1,138ft/s 18.8G 5,553ft 15.0s 12s
OK Cesaroni K2000 155.9oz 142ft/s 1,586ft/s 57.0G 5,797ft 14.2s 13s
OK Cesaroni K1085 154.7oz 103ft/s 1,408ft/s 25.6G 6,151ft 14.9s 13s
OK AeroTech K780 172.5oz 85ft/s 1,210ft/s 18.9G 6,312ft 15.9s 13s
OK AeroTech K1000 160.8oz 114ft/s 1,366ft/s 24.6G 6,380ft 15.2s 13s
OK Cesaroni K661 158.2oz 84ft/s 1,199ft/s 15.5G 6,656ft 16.1s 12s
OK Cesaroni K555 166.3oz 75ft/s 1,102ft/s 11.7G 6,673ft 16.6s 12s
OK AeroTech K560 165.8oz 77ft/s 1,058ft/s 15.1G 6,708ft 16.4s 11s
OK Gorilla L695 189.0oz 63ft/s 1,262ft/s 17.5G 6,823ft 16.7s 13s
OK Cesaroni L3200 184.1oz 161ft/s 1,989ft/s 74.9G 6,939ft 15.1s 14s
OK Cesaroni K510 160.4oz 84ft/s 1,013ft/s 14.3G 7,011ft 16.9s 12s
OK Cesaroni L585 167.2oz 82ft/s 1,140ft/s 13.1G 7,138ft 16.8s 12s
OK Cesaroni L910 161.3oz 99ft/s 1,392ft/s 20.8G 7,144ft 16.0s 13s
OK Cesaroni L820 189.6oz 79ft/s 1,328ft/s 16.0G 7,264ft 16.8s 13s
OK Loki L780 192.5oz 71ft/s 1,336ft/s 15.4G 7,420ft 17.0s 13s
OK Cesaroni L1720 186.8oz 131ft/s 1,864ft/s 36.7G 7,726ft 15.9s 14s
OK AeroTech L1150 198.6oz 104ft/s 1,512ft/s 22.8G 7,811ft 16.7s 14s
OK Gorilla L1150 192.5oz 96ft/s 1,557ft/s 28.8G 7,874ft 16.6s 14s
OK Gorilla L789 188.2oz 79ft/s 1,373ft/s 15.7G 7,874ft 17.2s 13s
OK AeroTech L1520 197.8oz 118ft/s 1,734ft/s 29.4G 7,976ft 16.4s 14s
OK Cesaroni L1355 244.0oz 108ft/s 1,531ft/s 25.2G 8,056ft 16.9s 14s
OK Loki L930 193.8oz 98ft/s 1,433ft/s 20.0G 8,116ft 17.1s 13s
OK Gorilla L985 197.1oz 77ft/s 1,548ft/s 18.8G 8,117ft 17.2s 14s
OK AeroTech L1256 201.5oz 111ft/s 1,582ft/s 25.5G 8,132ft 16.8s 14s
OK Loki L1482 193.8oz 111ft/s 1,826ft/s 28.7G 8,133ft 16.4s 14s
OK Cesaroni L995 195.7oz 102ft/s 1,417ft/s 22.3G 8,138ft 16.9s 13s
OK Gorilla L1112 197.0oz 106ft/s 1,575ft/s 23.0G 8,200ft 17.0s 13s
OK AeroTech L850 201.0oz 95ft/s 1,355ft/s 20.3G 8,298ft 17.2s 13s
OK AeroTech L1390 205.8oz 109ft/s 1,659ft/s 27.9G 8,332ft 16.9s 14s
OK Cesaroni L1050 190.6oz 102ft/s 1,537ft/s 21.2G 8,336ft 17.0s 13s
OK AeroTech L1040 235.4oz 87ft/s 1,434ft/s 17.4G 8,347ft 17.7s 14s
OK Cesaroni L645 201.3oz 75ft/s 1,216ft/s 11.8G 8,387ft 18.2s 13s
OK Loki L480 193.8oz 60ft/s 1,096ft/s 8.7G 8,415ft 19.0s 13s
OK Cesaroni L851 202.7oz 88ft/s 1,399ft/s 16.3G 8,435ft 17.6s 13s
OK AeroTech L875 230.4oz 81ft/s 1,381ft/s 13.8G 8,461ft 18.1s 14s
OK AeroTech L900 235.6oz 79ft/s 1,390ft/s 14.0G 8,617ft 18.3s 14s
OK AeroTech L1170 245.0oz 101ft/s 1,559ft/s 20.8G 8,633ft 17.7s 14s
OK Loki L840 201.2oz 92ft/s 1,375ft/s 20.0G 8,674ft 17.5s 13s
OK Cesaroni L800 192.8oz 97ft/s 1,318ft/s 21.4G 8,720ft 17.7s 13s
OK Cesaroni L1350 195.0oz 112ft/s 1,750ft/s 26.8G 8,783ft 16.9s 14s
OK Cesaroni L2375 215.8oz 137ft/s 2,183ft/s 43.2G 8,846ft 16.5s 14s
OK Gorilla L425 192.5oz 79ft/s 999ft/s 13.1G 9,038ft 19.6s 12s
OK AeroTech L1420 229.9oz 111ft/s 1,760ft/s 23.9G 9,066ft 17.5s 14s
OK Cesaroni L1685 282.4oz 116ft/s 1,685ft/s 28.2G 9,091ft 17.7s 15s
OK AeroTech L2200 237.7oz 134ft/s 1,949ft/s 47.1G 9,199ft 17.2s 15s
OK Cesaroni L1410 249.4oz 96ft/s 1,730ft/s 21.9G 9,380ft 18.1s 15s
OK AeroTech L1365 242.1oz 101ft/s 1,706ft/s 23.7G 9,429ft 18.1s 14s
OK Cesaroni M2250 224.7oz 146ft/s 2,137ft/s 42.1G 9,442ft 16.9s 14s
OK Cesaroni L1395 221.5oz 121ft/s 1,823ft/s 28.5G 9,506ft 17.6s 14s
OK Cesaroni M3100 246.0oz 149ft/s 2,460ft/s 53.6G 9,765ft 17.0s 15s
OK AeroTech M1350 238.6oz 111ft/s 1,708ft/s 26.0G 9,834ft 18.0s 14s
OK AeroTech M1780 235.3oz 133ft/s 1,940ft/s 36.1G 9,903ft 17.7s 14s
OK AeroTech M1500 241.7oz 114ft/s 1,803ft/s 24.8G 9,947ft 18.2s 15s
OK Cesaroni M1830 228.6oz 125ft/s 2,012ft/s 34.2G 9,953ft 17.5s 14s
OK AeroTech M2050 229.8oz 139ft/s 2,066ft/s 39.4G 9,996ft 17.8s 15s
OK Cesaroni L1115 224.3oz 110ft/s 1,585ft/s 25.6G 10,025ft 18.4s 14s
OK AeroTech M1297 232.6oz 117ft/s 1,723ft/s 30.0G 10,139ft 18.0s 14s
OK Cesaroni M1101 243.2oz 103ft/s 1,602ft/s 20.3G 10,145ft 18.5s 14s
OK Cesaroni M1230 239.9oz 98ft/s 1,714ft/s 21.8G 10,362ft 18.5s 14s
OK Cesaroni M1810 260.0oz 113ft/s 2,035ft/s 27.9G 10,526ft 18.3s 15s
OK Cesaroni M1675 253.2oz 115ft/s 1,999ft/s 28.7G 10,724ft 18.3s 15s
OK Cesaroni M1160 270.0oz 85ft/s 1,661ft/s 16.7G 11,042ft 19.5s 14s
OK Cesaroni M1401 272.7oz 100ft/s 1,820ft/s 21.1G 11,167ft 19.2s 14s
OK Cesaroni M1400 256.0oz 121ft/s 1,789ft/s 30.1G 11,251ft 19.0s 14s
OK Cesaroni M1670 253.5oz 122ft/s 1,918ft/s 30.6G 11,311ft 19.6s 16s
OK Cesaroni M1540 277.3oz 116ft/s 1,924ft/s 30.4G 11,490ft 19.0s 15s
OK Cesaroni M1300 268.5oz 123ft/s 1,609ft/s 37.6G 11,514ft 19.2s 14s
OK Cesaroni L395 270.3oz 57ft/s 980ft/s 6.7G 12,316ft 25.4s 13s
OK Cesaroni M2020 317.0oz 120ft/s 2,180ft/s 29.7G 12,636ft 19.6s 15s

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

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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