NOISE

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5th November 2007 | 08:04

#1 (permalink)

cholmondeley

Thread Starter

Joined: Oct 2004

Posts: 45

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From: uk

NOISE

I cannot find any published figures hence the question:- Is the R44 raven 2 appreciably less neighbour friendly (i.e. noisier from outside ) than an R22?

5th November 2007 | 11:22

#2 (permalink)

Tail-take-off

Joined: Jul 2007

Posts: 829

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From: taking up the hold

Pardon!!!!

5th November 2007 | 11:38

#3 (permalink)

raven2

Joined: Jan 2004

Posts: 34

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From: stand by one

The R44 II handbook gives details of the noise at 500ft AGL, I think its 55Dba. I dont think there is one published for the R22 but I would guess its lower than that.

Raven

5th November 2007 | 11:58

#4 (permalink)

JimBall

Joined: Nov 2006

Posts: 439

Likes: 1

From: UK

All recent 22s and 44s in the UK have to carry a CAA Noise certificate in the docs. The 44 Raven 2 is 81dB.

In reality, these land out side my office daily. I'd say the R44 is noisier in volume - but a more pleasant sound than the 22. R22 TR is particularly annoying.