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Big Project

Project

Project Manager

Fixed Wing

Motor Selection

Smile Khatri

...

Prop Size

Throttle

V

A

RPM

Thrust (g)

Operating Temperature (*C)

16 x 8“

70%

44.22

13.10

6363

3366

78

16 x 8”

100%

43.78

38.25

8646

6395

78

17 x 10”

70%

44.24

19.07

6038

4428

97

17 x 10”

100%

43.62

55.63

7891

7630

97

KV300 Test report

Prop Size

Throttle

V

A

RPM

Thrust (g)

Operating Temperature (*C)

17 x 10“

70%

29.59

21.50

5475

3696

68

17 x 10“

100%

29.01

55.72

7215

6577

68

18 x 8”

70%

29.59

21.71

5476

4019

85

18 x 8”

100%

29.01

55.77

7201

7231

85

14 x 7”

70%

44.28

17.04

8371

3536

82

14 x 7”

100%

43.67

53.21

11329

6283

82

15 x 8”

70%

44.01

22.29

8039

4569

‘HOT’

15 x 8”

100%

43.14

72.26

10572

7787

‘HOT’

...

Prop Size

Throttle

V

A

RPM

Thrust (g)

Operating Temperature (*C)

21 x 6.3” CF

70%

47.84

6.98

4012

2958

55

21 x 6.3” CF

100%

47.69

14.96

5145

4843

55

22 x 6.6”

70%

47.83

7.96

3805

3273

64

22 x 6.6”

100%

47.64

17.65

4871

5384

64

50 Propdrive V2 50-60 270KV

...

  • AT3520 Long Shaft KV720 + 14 x 7” prop

    • max thrust = 4.3 kg

    • Costs $80 - need to buy

    • Voltage draw 17-18V

  • AT2820 KV1250

    • 10 x 5.5 prop

    • max thrust 3.1 kg

    • $60

    • Plane flies slower, drag will depend on v^2 so 0.5 : 1 thrust-to-weight ratio might work?

  • AT3520 Long Shaft KV550 + 14 x 7”

    • max thrust = 4.1 kg

    • Costs $80 - need to buy

    • Voltage draw 20 - 23V

  • AT4130 classes aren’t suitable, they’ll require 2 LiPos and we are restricting to 1 to maintain under 5kg. They are also $110.

  • 50 Propdrive V2 50-60 270KV

    • Kinda heavy (~454g) but could work. Will be difficult/impossible buying extra parts if we have them still in the Bay

  • AT3520-5 KV 880

  • Turnigy G60 400KV

  • AT4120 KV560

    • 14 x 7 prop

    • 4.9 kg max thrust

    • $110