airspeed. The packet should contain differential pressure in pascals. If outside air temperature is
available it should be set in the message for increased accuracy, otherwise this field should be set
to 15 degrees.
Packet ID
Length
Field #
Bytes
Offset
1
0
2
4
Table 63: External pitot pressure packet
9.8.38
Wind Estimation Packet
This packet provides Spatial's current estimate of 3D wind velocity. These values are only valid
when a pitot tube is interfaced to Spatial.
Packet ID
Length
Field #
Bytes
Offset
1
0
2
4
3
8
Table 64: Wind estimation packet
9.8.39
Heave Packet
Packet ID
Length
Field #
Bytes
Offset
1
0
2
4
3
8
4
12
Table 65: Heave packet
External Pitot Pressure Packet
Data
Size
Type
fp32
4
fp32
4
Wind Estimation Packet
Data
Size
Type
fp32
4
fp32
4
fp32
4
Data
Size
Type
fp32
4
fp32
4
fp32
4
fp32
4
Spatial OEM Reference Manual
Description
Differential pressure (pascals)
Outside air temperature (deg C)
Description
Wind velocity north
Wind velocity east
Wind velocity down
Heave Packet
Description
Heave point 1 (m)
Heave point 2 (m)
Heave point 3 (m)
Heave point 4 (m)
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