If you've never done it before, don't dip the rotors in hot water. Rotors is normal when in resting mode.

If you want to create them as "in flight", Use clear sheet and make your own prop blurs. Cut circles using a bladed compass.

Curious question… how will you display your completed Chinook in flight? Sounds to me it's a diorama you'll be doing.

Plastic clear dowels can be used to hold your Chinook in flight. I'll betcha you'll find them at Hobby Lobby.

Here's how I did my Beaufighter as "in flight" ….

Vintage 1/72 scale Airfix kit; included stand. I added clear part from my scrap sprue stash. I wanted to display it as on final approach with torpedoe released. Pretty cool, huh?

It took a lot of thinking to get what I wanted.

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