Good-bye Cayuse

[Aesir]

H500 = H369

H300 = H269

Same thing, its just that the 500 is the commercial name and 369 is the type certificate name.

4 bladed v-tail H500 or H369 is the "C" model.

5 bladed T-tail is the "D" model.

5 bladed T-tail with pointy noise is "E" model.