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Table 3 Mean velocity, direction and error RMS of the airspeed for P1R1 cases

From: Development and flight-test verification of two-dimensional rotational low-airspeed sensor for small helicopters

Symbol

Mean (ASR)

Mean (AS)

Error

Diff. (Upper)

RMS (Lower)

 

\(V_\text{W}\)

\(\psi _\text{W}\)

\(V_\text{W}\)

\(\psi _\text{W}\)

\(V_\text{W}\)

\(V_\text{W}\)

\(\psi _\text{W}\)

 

[m/s]

[\(^\circ\)]

[m/s]

[\(^\circ\)]

[m/s]

[%]

[\(^\circ\)]

P1R1V1.4

0.448

– 44.8

1.36

77.4

– 0.912

 

– 122

     

1.01

74.0

84.4

P1R1V3.2

3.96

31.3

3.21

– 12.8

0.750

 

44.1

     

1.04

32.6

44.5

P1R1V3.4

4.71

50.6

3.39

19.1

1.32

 

31.5

     

1.37

40.6

31.8

P1R1V10.5

10.4

31.2

10.5

1.89

– 0.100

 

29.3

     

0.327

3.13

29.5

P1R1V21.3

20.3

36.7

21.3

3.20

– 1.00

 

33.5

     

1.04

4.88

33.5

P1R1V28.6

26.4

35.5

28.6

– 3.55

– 2.20

 

39.1

     

2.20

7.71

39.0

P1R1V29.1

27.0

31.0

29.1

−6.98

−2.10

 

38.0

     

2.16

7.41

38.0