Question about DGPS accuracy for PEC
I have to use DGPS method for airplane PEC.
In FAR23, there is (±30ft per 100 kts, ±5 kts or 3% greater ) requirement for ASI.
1) Let me know DGPS equipment accuracy for calibration & rationale..
- for example at least ± ?ft, ± ?knot
In flight test, test equipment is very important. (test boom, trailing cone)..
But, it it difficult to determine the accuracy & spec. of these equipment.
2) What should be the criteria for this?
Please let me know.