| |
Graupner Terry |
Graupner Terry |
Graupner Terry Leton 400T |
| Motor |
Graupner Speed 400 6V #3321 (cat) |
Graupner Speed 400 6V #3321 (cat) |
Leton 201013 (400T) |
| Motor Constant (rpm/V) |
3097 |
3097 |
1300 |
| No Load Current (A) |
0.7 |
0.7 |
0.6 |
| Armature Resistance (Ohms) |
0.269 |
0.269 |
0.095 |
| |
|
|
|
| Battery |
Sanyo 500AR |
Hyperion HP-LVX0800 |
Hyperion HP-LVX0800 |
| Series Cell Count |
6 |
3 |
3 |
| Parallel Cell Count |
1 |
1 |
1 |
| Cell Capacity (mAh) |
500 |
800 |
800 |
| Pack Capacity (mAh) |
500 |
800 |
800 |
| Cell Voltage (V) |
1.2 |
3.7 |
3.7 |
| Pack Voltage (V) |
7.2 |
11.1 |
11.1 |
| Cell Resistance (Ohms) |
0.009 |
0.021 |
0.021 |
| Pack Resistance (Ohms) |
0.054 |
0.063 |
0.063 |
| |
|
|
|
| Speed Control (ESC) |
Generic High Rate ESC |
Generic High Rate ESC |
Generic Brushless ESC |
| Resistance (Ohms) |
0.003 |
0.003 |
0.006 |
| Maximum Current (A) |
0 |
0 |
50 |
| Number of ESCs |
1 |
1 |
1 |
| |
|
|
|
| Drive System |
Graupner 6x3 Folding Prop |
Graupner 6x3 Folding Prop |
7.5x4 |
| Gear Ratio |
1.00:1 |
1.00:1 |
1.00:1 |
| Propeller (in x in) |
6x3 |
6x3 |
7.5x4 |
| Series Motors |
1 |
1 |
1 |
| Parallel Motors |
1 |
1 |
1 |
| Number of Propellers |
1 |
1 |
1 |
| Blades per Propeller |
2 |
2 |
2 |
| |
|
|
|
| Airframe |
Graupner Terry |
Graupner Terry |
Graupner Terry |
| Wing Span (cm) |
104.3 |
104.3 |
104.3 |
| Wing Area (dm²) |
17.1 |
17.1 |
17.1 |
| Total Weight (g) |
520 |
451 |
473 |
| |
|
|
|
| Static Predictions |
|
|
|
| Current (A) |
8.6 |
12.0 |
10.7 |
| Motor Voltage (V) |
6.7 |
10.3 |
10.4 |
| Input Power (W) |
57.8 |
123.6 |
110.9 |
| Input Power Loading (W/kg) |
111.0 |
273.9 |
234.2 |
| Power Loss (W) |
28.0 |
72.8 |
18.6 |
| Motor/Gearbox Output (W) |
29.8 |
50.7 |
92.2 |
| Output Power Loading (W/kg) |
57.2 |
112.5 |
194.8 |
| Motor/Gearbox Efficiency (%) |
51.5 |
41.1 |
83.2 |
| Shaft Efficiency (%) |
48.0 |
38.1 |
77.6 |
| Motor RPM |
11655 |
13923 |
11870 |
| Propeller RPM |
11655 |
13923 |
11870 |
| Static Thrust (g) |
194 |
276 |
439 |
| Pitch Speed (m/s) |
14.8 |
17.7 |
20.1 |
| Run Time (min:sec) |
3:29 |
4:00 |
4:29 |
| |
|
|
|
| Flight Predictions |
|
|
|
| Stall Speed (m/s) |
7.7 |
7.1 |
7.3 |
| Optimal Flight Speed (m/s) |
10.5 |
9.7 |
10 |
| Throttle for Optimal (%) |
74 |
45 |
62 |
| Duration at Optimal (m:s) |
10:46 |
30:39 |
32:57 |
| Motor Temp at Optimal (°C) |
38 |
36 |
35 |
| Hands-off Speed (m/s) |
15.8 |
14.7 |
15 |
| Throttle for Hands-off (%) |
101 |
66 |
90 |
| Duration Hands-off (m:s) |
10:46 |
14:28 |
16:30 |
| Motor Temp Hands-off (°C) |
43 |
46 |
41 |
| Best Rate of Climb (m/s) |
1.27 |
3.49 |
5.61 |
| Rate of Sink (m/s) |
-0.98 |
-0.91 |
-0.93 |