Motor Guide Results
Here is your handy guide to the motors that might work with your rocket.
We found 78 motors that fit and appear to have enough thrust
(701 motors didn't fit, 21 motors failed safety checks).
97 motor had thrust curves available and 191 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: 

Estes Scion 
Owner: 
Richard Holmes 
Body Diameter: 
3.00in 
Dry Weight: 
21.5oz 
MMT Diameter: 
29.0mm 
MMT Length: 
12.00in 
C_{D}: 
0.55 
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 

AeroTech F62 
25.3oz 
55ft/s 
209ft/s 
8.1G 
590ft 
6.1s 
5s 

Cesaroni F120 
25.2oz 
81ft/s 
240ft/s 
19.4G 
633ft 
6.1s 
6s 

AeroTech F42 
24.2oz 
58ft/s 
211ft/s 
9.2G 
650ft 
6.4s 
5s 

Cesaroni F59 
25.0oz 
57ft/s 
227ft/s 
9.2G 
650ft 
6.4s 
5s 

AeroTech F67 
24.3oz 
65ft/s 
257ft/s 
11.7G 
750ft 
6.6s 
6s 

AeroTech F50 
24.5oz 
60ft/s 
265ft/s 
9.7G 
848ft 
7.1s 
6s 

AeroTech F25 
24.7oz 
51ft/s 
223ft/s 
7.4G 
867ft 
7.5s 
5s 

AeroTech F52 
25.8oz 
60ft/s 
263ft/s 
10.0G 
874ft 
7.3s 
6s 

AeroTech F40 
26.0oz 
56ft/s 
255ft/s 
8.4G 
942ft 
7.6s 
6s 
W 
Estes F50 
24.4oz 
62ft/s 
291ft/s 
10.5G 
975ft 
7.5s 
6s 

AeroTech G54 
26.3oz 
60ft/s 
285ft/s 
10.1G 
979ft 
7.6s 
6s 

Cesaroni G88 
26.9oz 
65ft/s 
322ft/s 
14.6G 
1,014ft 
7.6s 
7s 

AeroTech G104 
26.3oz 
78ft/s 
328ft/s 
15.7G 
1,044ft 
7.5s 
7s 

AeroTech G38 
25.9oz 
48ft/s 
267ft/s 
6.3G 
1,073ft 
8.3s 
6s 

AeroTech G74 
24.6oz 
63ft/s 
344ft/s 
12.2G 
1,092ft 
7.8s 
7s 

AeroTech G53 
26.6oz 
62ft/s 
305ft/s 
10.7G 
1,127ft 
8.1s 
6s 

Cesaroni G80 
26.6oz 
61ft/s 
356ft/s 
12.4G 
1,165ft 
8.0s 
7s 

AeroTech G77 
27.3oz 
57ft/s 
367ft/s 
10.7G 
1,247ft 
8.4s 
7s 
W 
Estes G40 
25.8oz 
57ft/s 
317ft/s 
9.2G 
1,259ft 
8.5s 
6s 

AeroTech G40 
25.8oz 
57ft/s 
317ft/s 
9.2G 
1,259ft 
8.5s 
6s 

AeroTech G77 
25.8oz 
62ft/s 
389ft/s 
12.5G 
1,285ft 
8.3s 
7s 

AeroTech G79 
27.0oz 
63ft/s 
381ft/s 
12.1G 
1,320ft 
8.5s 
7s 

Cesaroni G83 
26.6oz 
67ft/s 
387ft/s 
12.5G 
1,329ft 
8.4s 
7s 

Cesaroni G68 
27.0oz 
57ft/s 
370ft/s 
11.2G 
1,339ft 
8.6s 
7s 

AeroTech G79 
25.9oz 
55ft/s 
377ft/s 
10.1G 
1,345ft 
8.6s 
7s 

Cesaroni G250 
26.5oz 
108ft/s 
460ft/s 
38.2G 
1,352ft 
8.1s 
8s 

Cesaroni G57 
26.6oz 
62ft/s 
354ft/s 
10.9G 
1,358ft 
8.7s 
7s 

AeroTech G76 
26.7oz 
83ft/s 
379ft/s 
19.3G 
1,432ft 
8.6s 
7s 

Cesaroni G126 
26.6oz 
83ft/s 
445ft/s 
20.5G 
1,434ft 
8.5s 
8s 

AeroTech G64 
26.8oz 
72ft/s 
374ft/s 
13.5G 
1,476ft 
8.8s 
6s 

Cesaroni G131 
28.6oz 
77ft/s 
457ft/s 
17.6G 
1,494ft 
8.7s 
8s 

AeroTech G75 
26.1oz 
65ft/s 
412ft/s 
12.9G 
1,501ft 
8.8s 
7s 

AeroTech G78 
25.9oz 
66ft/s 
434ft/s 
13.0G 
1,528ft 
8.8s 
7s 

AeroTech G125 
25.9oz 
80ft/s 
491ft/s 
19.5G 
1,552ft 
8.6s 
8s 

AeroTech G80 
26.0oz 
70ft/s 
449ft/s 
13.4G 
1,610ft 
9.0s 
7s 

Cesaroni G106 
28.1oz 
65ft/s 
486ft/s 
15.8G 
1,655ft 
9.1s 
8s 

KBA G135 
29.5oz 
70ft/s 
507ft/s 
17.9G 
1,690ft 
9.1s 
8s 

KBA G82 
29.6oz 
55ft/s 
450ft/s 
10.6G 
1,698ft 
9.5s 
8s 

AeroTech G75 
29.7oz 
54ft/s 
448ft/s 
8.5G 
1,795ft 
9.8s 
7s 

AeroTech H165 
28.6oz 
87ft/s 
573ft/s 
22.9G 
1,862ft 
9.3s 
8s 

Cesaroni G125 
28.4oz 
80ft/s 
547ft/s 
19.5G 
1,872ft 
9.4s 
8s 

Cesaroni H175 
30.2oz 
87ft/s 
584ft/s 
25.1G 
1,881ft 
9.3s 
8s 

Cesaroni G118 
28.1oz 
74ft/s 
545ft/s 
19.0G 
1,882ft 
9.5s 
8s 

Cesaroni H410 
27.9oz 
142ft/s 
667ft/s 
66.4G 
1,890ft 
9.0s 
9s 

Cesaroni H133 
28.2oz 
82ft/s 
559ft/s 
23.5G 
1,913ft 
9.4s 
8s 

Cesaroni H163 
28.1oz 
93ft/s 
598ft/s 
26.8G 
1,936ft 
9.4s 
8s 

Cesaroni G54 
28.3oz 
71ft/s 
416ft/s 
14.4G 
1,961ft 
10.1s 
7s 

AeroTech G138 
26.7oz 
80ft/s 
627ft/s 
21.7G 
1,961ft 
9.4s 
8s 

AeroTech H128 
28.8oz 
87ft/s 
584ft/s 
21.7G 
1,970ft 
9.5s 
8s 

AeroTech H238 
28.4oz 
100ft/s 
620ft/s 
28.8G 
1,973ft 
9.3s 
8s 

Cesaroni H90 
27.2oz 
76ft/s 
530ft/s 
19.5G 
1,976ft 
9.7s 
8s 

Cesaroni H87 
28.7oz 
68ft/s 
520ft/s 
15.1G 
1,995ft 
9.9s 
8s 

Cesaroni H123 
29.5oz 
72ft/s 
578ft/s 
16.0G 
2,015ft 
9.7s 
8s 

Cesaroni H54 
28.9oz 
63ft/s 
428ft/s 
11.6G 
2,047ft 
10.4s 
7s 

AeroTech H115 
28.7oz 
70ft/s 
577ft/s 
14.4G 
2,050ft 
9.8s 
8s 

AeroTech H97 
31.3oz 
65ft/s 
547ft/s 
11.6G 
2,117ft 
10.2s 
8s 

Cesaroni H118 
29.7oz 
82ft/s 
579ft/s 
19.6G 
2,120ft 
9.9s 
8s 

Cesaroni H237 
31.9oz 
101ft/s 
698ft/s 
29.8G 
2,190ft 
9.7s 
9s 

AeroTech H220 
30.3oz 
109ft/s 
697ft/s 
35.4G 
2,220ft 
9.7s 
9s 

AeroTech H210 
30.2oz 
96ft/s 
708ft/s 
29.4G 
2,257ft 
9.8s 
9s 

Cesaroni H151 
29.9oz 
92ft/s 
654ft/s 
23.5G 
2,271ft 
9.9s 
9s 

KBA H130 
46.5oz 
72ft/s 
506ft/s 
16.0G 
2,333ft 
11.1s 
9s 

AeroTech H182 
28.8oz 
89ft/s 
740ft/s 
22.5G 
2,339ft 
9.9s 
9s 

Cesaroni H170 
29.7oz 
95ft/s 
696ft/s 
27.8G 
2,342ft 
10.0s 
9s 

Cesaroni H160 
31.1oz 
86ft/s 
691ft/s 
20.5G 
2,357ft 
10.1s 
9s 

Cesaroni H135 
30.4oz 
85ft/s 
657ft/s 
18.6G 
2,370ft 
10.2s 
9s 

AeroTech H180 
30.4oz 
98ft/s 
726ft/s 
29.2G 
2,390ft 
10.0s 
9s 

AeroTech H250 
30.5oz 
115ft/s 
770ft/s 
37.2G 
2,402ft 
9.9s 
9s 

AeroTech H195 
28.4oz 
106ft/s 
795ft/s 
31.2G 
2,469ft 
9.9s 
9s 

KBA H225 
32.6oz 
84ft/s 
770ft/s 
28.1G 
2,490ft 
10.3s 
9s 

AeroTech H135 
29.0oz 
80ft/s 
661ft/s 
18.1G 
2,528ft 
10.5s 
8s 

Cesaroni H194 
31.5oz 
98ft/s 
772ft/s 
31.2G 
2,603ft 
10.3s 
9s 

Cesaroni H200 
31.2oz 
103ft/s 
783ft/s 
32.5G 
2,640ft 
10.3s 
9s 

Cesaroni H53 
31.6oz 
53ft/s 
502ft/s 
9.7G 
2,679ft 
11.8s 
7s 

Cesaroni H255 
29.7oz 
120ft/s 
877ft/s 
44.6G 
2,691ft 
10.2s 
9s 

Cesaroni H140 
31.3oz 
94ft/s 
726ft/s 
27.3G 
2,763ft 
10.7s 
9s 

AeroTech I205 
32.6oz 
98ft/s 
914ft/s 
39.2G 
3,148ft 
10.8s 
9s 
W,D 
Estes G80 
25.9oz 
11:1 thrust/weight ratio (no data) 
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 
G 
Estes E16 
speed at end of launch guide too slow (30ft/s) 
G 
AeroTech E23 
speed at end of launch guide too slow (41ft/s) 
G 
AeroTech E16 
speed at end of launch guide too slow (34ft/s) 
G 
AeroTech F23 
speed at end of launch guide too slow (44ft/s) 
G 
Cesaroni F36 
speed at end of launch guide too slow (42ft/s) 
G 
AeroTech F27 
speed at end of launch guide too slow (40ft/s) 
G 
Estes F15 
speed at end of launch guide too slow (28ft/s) 
G 
AeroTech F37 
speed at end of launch guide too slow (41ft/s) 
G 
Cesaroni F36 
speed at end of launch guide too slow (43ft/s) 
G 
AeroTech F20 
speed at end of launch guide too slow (45ft/s) 
G 
Cesaroni F32 
speed at end of launch guide too slow (38ft/s) 
G 
Cesaroni F29 
speed at end of launch guide too slow (36ft/s) 
G 
Cesaroni F31 
speed at end of launch guide too slow (40ft/s) 
5 
Estes F26 
average thrust fails 5:1 thrust/weight ratio (4:1) 
G 
AeroTech F26 
speed at end of launch guide too slow (39ft/s) 
G 
AeroTech F22 
speed at end of launch guide too slow (34ft/s) 
G 
Apogee F10 
speed at end of launch guide too slow (31ft/s) 
G 
AeroTech G25 
speed at end of launch guide too slow (41ft/s) 
G 
AeroTech G8 
speed at end of launch guide too slow (12ft/s) 
G 
Cesaroni G33 
speed at end of launch guide too slow (38ft/s) 
G 
Cesaroni H42 
speed at end of launch guide too slow (45ft/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 thrusttoweight 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 tailoff 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
(commaseparated value, or CSV) that can be opened with almost any spreadsheet program.
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 rightclick (controlclick on the Mac) on the link and
chose Save File As (or similar).
