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Helicopter Anti-icing  
User currently offlineGlom From United Kingdom, joined Apr 2005, 2815 posts, RR: 10
Posted (5 years 5 months 3 weeks 1 day 11 hours ago) and read 6190 times:

Surely helicopters have anti-icing on the rotors. Prop planes have them for the props.

What about the S-92? That doesn't seem to have anti-icing because they keep cancelling flights due to cold weather. It's hovering at freezing point at the moment. Surely this cannot be exceptional for a helicopter, particularly one that is being used NEAR THE ARCTIC CIRCLE!

4 replies: All unread, jump to last
 
User currently offlineDeaphen From India, joined Jul 2005, 1425 posts, RR: 1
Reply 1, posted (5 years 5 months 3 weeks 1 day 8 hours ago) and read 6164 times:



Quoting Glom (Thread starter):
Surely this cannot be exceptional for a helicopter, particularly one that is being used NEAR THE ARCTIC CIRCLE!

Haha, that last sentence of yours reminded me of Dr. Evil from Austin Powers.... "NEAR THE ARCTIC CIRCLE".

 Smile

Anyways, moving on, i assume that helicopters also require de-icing, though im sure there are more experienced people on here to comment on that.

Nitin



I want every single airport and airplane in India to be on A.net!
User currently offlineShhpanked From United States of America, joined Dec 2008, 69 posts, RR: 0
Reply 2, posted (5 years 5 months 3 weeks 1 day 8 hours ago) and read 6160 times:

I want to say the S-92 has an engine anti-ice system but that's it.

Anyways, anti-ice system for the rotor system itself is fairly uncommon simply because of the added weight and complexity. But the ones that do have anti-ice systems in place pump bleed air along the leading edge of each rotor. I've also heard of leaking glycol along the trailing edge of the rotor but couldn't give any examples off the top of my head.

However, there is research being done on ultrasonic pulses to help remove ice build up. I literally have no idea if it's operational or in the development stages.

[Edited 2009-02-07 05:59:10]


People fly airplanes and pilots fly helicopters.
User currently offlineFlypig687 From United States of America, joined Jul 2007, 56 posts, RR: 0
Reply 3, posted (5 years 5 months 2 weeks 4 days 7 hours ago) and read 5900 times:

According to the Sikorsky Website the S-92 has an optional Rotor Ice Protection System (RIPS), it is just possible those models were purchased without the system installed.

The RIPS system uses heated wire and materials in the rotors


User currently offlineB6JFKH81 From United States of America, joined Mar 2006, 2877 posts, RR: 7
Reply 4, posted (5 years 5 months 2 weeks 1 day 3 hours ago) and read 5711 times:



Quoting Flypig687 (Reply 3):
The RIPS system uses heated wire and materials in the rotors

Would this be an electrical based system? I have always wondered about rotor & prop IPSs...

Quoting Shhpanked (Reply 2):
But the ones that do have anti-ice systems in place pump bleed air along the leading edge of each rotor.

Wow, that has to be one complex system! Does the system also heat the leading edge of the vertical stabilizer or the tail rotors? Would love to see a diagram for this system!



"If you do not learn from history, you are doomed to repeat it"
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