Seen over the last 2 days:
AH-1W
HF/52
HF/74 5282
TV/21
TV/26
TV/31 0___
AH-1Z
SM/44 7810
SM/51 880_
SN/42 7809
SN/45 8521
UV/40 8526
UV/42 8_0_
UH-1Y
HF/80 8502
HF/89 7_97 (6 in chalk)
SM/07
SM/08 9110
SN/00 8949
SN/01 9100
SN/15 8957
TV/06 7998
TV/07 8417
UV/04 8412
UV/12 8503