Motor Guide Results
Here is your handy guide to the motors that might work with your rocket.
We found 67 motors that fit and appear to have enough thrust
(734 motors didn't fit, 10 motors failed safety checks).
76 motor had thrust curves available and 160 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: 

Ultimate Dark Star 
Owner: 
KenRico 
Body Diameter: 
6.17in 
Dry Weight: 
41.00lb 
MMT Diameter: 
98.0mm 
MMT Length: 
60.00in 
C_{D}: 
0.45 
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 

Cesaroni K1620 
47.78lb 
64ft/s 
326ft/s 
7.8G 
1,708ft 
10.8s 
9s 

AeroTech K1999 
47.59lb 
71ft/s 
350ft/s 
9.1G 
1,896ft 
11.3s 
10s 

AeroTech L1300 
51.77lb 
54ft/s 
536ft/s 
5.9G 
4,352ft 
17.4s 
14s 

AeroTech L1500 
51.27lb 
63ft/s 
563ft/s 
7.4G 
4,640ft 
17.4s 
14s 

AeroTech L2500 
52.00lb 
80ft/s 
604ft/s 
11.6G 
4,673ft 
17.0s 
15s 

Cesaroni L3150 
51.43lb 
92ft/s 
644ft/s 
15.3G 
4,988ft 
17.3s 
16s 

Contrail M2800 
64.60lb 
74ft/s 
607ft/s 
18.8G 
5,180ft 
17.9s 
16s 

Contrail M2700 
64.00lb 
111ft/s 
612ft/s 
21.7G 
5,256ft 
17.8s 
16s 

Cesaroni M1560 
51.97lb 
60ft/s 
633ft/s 
7.0G 
5,500ft 
19.0s 
16s 

Contrail M1575 
64.55lb 
71ft/s 
640ft/s 
9.4G 
6,087ft 
19.8s 
16s 

AeroTech M1305 
56.65lb 
57ft/s 
694ft/s 
6.8G 
7,173ft 
21.7s 
16s 

AeroTech M1600 
56.25lb 
59ft/s 
762ft/s 
6.7G 
7,481ft 
21.9s 
17s 

AeroTech M1340 
56.43lb 
57ft/s 
740ft/s 
6.7G 
7,912ft 
22.5s 
17s 

Cesaroni M1060 
55.71lb 
56ft/s 
704ft/s 
5.1G 
8,007ft 
23.4s 
16s 

AeroTech M4500 
55.60lb 
109ft/s 
920ft/s 
22.4G 
8,122ft 
21.1s 
19s 

AeroTech M1419 
56.25lb 
50ft/s 
717ft/s 
5.1G 
8,198ft 
23.6s 
16s 

Cesaroni M1290 
57.34lb 
53ft/s 
765ft/s 
5.3G 
8,234ft 
23.4s 
17s 

Cesaroni M4770 
55.34lb 
106ft/s 
948ft/s 
22.9G 
8,285ft 
21.2s 
20s 

Cesaroni M1520 
55.81lb 
60ft/s 
800ft/s 
6.5G 
8,289ft 
22.9s 
18s 

Cesaroni M2505 
54.78lb 
76ft/s 
885ft/s 
11.4G 
8,316ft 
22.0s 
19s 

AeroTech M2100 
56.25lb 
71ft/s 
866ft/s 
11.3G 
8,489ft 
22.3s 
19s 

AeroTech M2400 
55.22lb 
76ft/s 
889ft/s 
10.4G 
8,533ft 
22.3s 
19s 

AeroTech M1800 
61.20lb 
61ft/s 
830ft/s 
9.5G 
8,566ft 
23.0s 
18s 

Cesaroni M1790 
59.24lb 
59ft/s 
855ft/s 
7.0G 
8,697ft 
23.3s 
19s 

AeroTech M1845 
55.73lb 
70ft/s 
876ft/s 
9.0G 
9,065ft 
23.2s 
18s 

Hypertek M1000 
60.64lb 
52ft/s 
737ft/s 
4.6G 
9,388ft 
25.6s 
16s 

Cesaroni M6400 
58.46lb 
122ft/s 
1,070ft/s 
28.2G 
9,585ft 
22.4s 
21s 

Hypertek M1010 
60.84lb 
53ft/s 
746ft/s 
4.7G 
9,636ft 
25.9s 
16s 

Gorilla M1025 
63.35lb 
57ft/s 
746ft/s 
5.3G 
9,892ft 
26.0s 
17s 

AeroTech M2000 
60.81lb 
66ft/s 
949ft/s 
7.9G 
9,951ft 
24.4s 
20s 

AeroTech M6000 
59.65lb 
116ft/s 
1,153ft/s 
27.2G 
10,628ft 
23.5s 
22s 

AeroTech M2500 
58.78lb 
79ft/s 
1,039ft/s 
10.2G 
10,642ft 
24.4s 
20s 

Cesaroni M1890 
60.45lb 
63ft/s 
989ft/s 
7.6G 
10,869ft 
25.4s 
20s 

Cesaroni M1450 
59.91lb 
69ft/s 
914ft/s 
8.1G 
10,992ft 
25.9s 
19s 

Cesaroni M1800 
59.39lb 
66ft/s 
988ft/s 
7.3G 
10,999ft 
25.5s 
20s 

AeroTech N2220 
67.45lb 
70ft/s 
1,000ft/s 
8.9G 
11,111ft 
25.4s 
20s 

Cesaroni M795 
59.72lb 
59ft/s 
738ft/s 
5.5G 
11,113ft 
28.1s 
15s 

Cesaroni N10000 
62.87lb 
155ft/s 
1,234ft/s 
43.5G 
11,149ft 
23.6s 
23s 

Cesaroni M3400 
58.88lb 
86ft/s 
1,144ft/s 
14.4G 
11,230ft 
24.5s 
22s 

AeroTech M1939 
60.82lb 
63ft/s 
966ft/s 
7.3G 
11,337ft 
26.0s 
19s 

Cesaroni N1800 
61.24lb 
64ft/s 
997ft/s 
7.1G 
11,373ft 
26.0s 
20s 

Cesaroni N2600 
66.31lb 
71ft/s 
1,097ft/s 
9.7G 
11,709ft 
25.8s 
22s 

Gorilla N2717 
63.35lb 
72ft/s 
1,103ft/s 
14.4G 
11,825ft 
25.5s 
21s 

Cesaroni N2200 
66.04lb 
70ft/s 
1,108ft/s 
8.3G 
12,825ft 
27.1s 
21s 

Loki N3800 
66.57lb 
97ft/s 
1,254ft/s 
16.5G 
13,188ft 
26.1s 
23s 

AeroTech N2000 
68.08lb 
72ft/s 
1,107ft/s 
8.9G 
13,809ft 
28.0s 
20s 

Gorilla N1720 
75.00lb 
76ft/s 
1,020ft/s 
9.9G 
14,054ft 
28.7s 
20s 

Cesaroni N5600 
65.87lb 
112ft/s 
1,461ft/s 
22.2G 
14,398ft 
26.5s 
24s 

Cesaroni N2500 
66.72lb 
85ft/s 
1,234ft/s 
11.4G 
14,469ft 
27.9s 
22s 

Cesaroni N3400 
71.80lb 
76ft/s 
1,342ft/s 
12.3G 
14,619ft 
27.8s 
24s 

Cesaroni N2850 
66.77lb 
77ft/s 
1,311ft/s 
10.6G 
14,637ft 
27.9s 
23s 

AeroTech N3300 
67.57lb 
85ft/s 
1,353ft/s 
11.8G 
14,785ft 
27.7s 
23s 

AeroTech N1000 
69.16lb 
62ft/s 
903ft/s 
5.9G 
14,902ft 
31.7s 
16s 

Cesaroni N1975 
70.21lb 
55ft/s 
1,224ft/s 
6.6G 
14,979ft 
29.7s 
22s 

Cesaroni N3180 
67.89lb 
83ft/s 
1,370ft/s 
12.0G 
14,983ft 
27.9s 
23s 

Cesaroni N1100 
66.55lb 
71ft/s 
954ft/s 
8.2G 
15,205ft 
30.8s 
18s 

Cesaroni N2501 
70.34lb 
78ft/s 
1,309ft/s 
10.2G 
15,809ft 
29.0s 
23s 

Cesaroni N1560 
75.96lb 
70ft/s 
1,096ft/s 
8.5G 
16,875ft 
31.6s 
21s 

Cesaroni N3800 
72.44lb 
92ft/s 
1,551ft/s 
14.3G 
17,530ft 
29.3s 
25s 

Cesaroni N4100 
73.51lb 
89ft/s 
1,629ft/s 
14.5G 
17,675ft 
29.4s 
25s 

Cesaroni N2540 
76.89lb 
67ft/s 
1,418ft/s 
7.9G 
17,776ft 
31.0s 
24s 

Cesaroni N2900 
72.23lb 
85ft/s 
1,465ft/s 
11.5G 
17,954ft 
30.3s 
24s 

Cesaroni N3301 
77.43lb 
88ft/s 
1,536ft/s 
13.4G 
18,556ft 
30.4s 
25s 

Cesaroni N5800 
73.69lb 
109ft/s 
1,854ft/s 
21.3G 
19,512ft 
29.7s 
26s 

Cesaroni O3400 
78.13lb 
88ft/s 
1,625ft/s 
13.0G 
19,872ft 
31.0s 
25s 

AeroTech O5280 
75.57lb 
108ft/s 
1,878ft/s 
18.5G 
20,847ft 
30.7s 
26s 
D 
Gorilla M1565 
62.61lb 
6:1 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.
G These simulations were run with a launch guide length of 10ft (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.)
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).
