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Airspeed Indication On Rotocraft?  
User currently offlineFXfan From United States of America, joined Oct 2006, 85 posts, RR: 0
Posted (7 years 8 months 3 weeks 1 day 15 hours ago) and read 1732 times:

How do rotocraft measure airspeed when they have the ability to move side to side and even backward? Also, does the down wash effect the indicated speed at all?

1 replies: All unread, jump to last
User currently offlineStar_world From Ireland, joined Jun 2001, 1234 posts, RR: 0
Reply 1, posted (7 years 8 months 3 weeks 1 day 14 hours ago) and read 1710 times:

The pitot tube is placed out of the rotor effect area, so the reading will be accurate. The ASI works just like a fixed wing aircraft ASI would - it only shows forward speed. The sideways / backwards movement is generally performed at a much lower speed, so having an airspeed for these directions isn't essential. Plus there's always a GPS groundspeed indicator, if fitted.

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