Mailing List flyrotary@lancaironline.net Message #48327
From: Al Gietzen <ALVentures@cox.net>
Subject: RE: [FlyRotary] Noise reduction
Date: Wed, 23 Sep 2009 11:55:39 -0800
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>

Mike, Mark; and all you going deaf with noisy Rotary engines:

 

Hey; don’t blame it on rotary enginesJ.

I fly quite comfortable with my passive reduction Sennheisers in my Velocity 20B.

People tell me it’s quieter than Lycs.

 

Al G

 

    I have 2 sets of Halo Tubephones from Quiet Technologies, that

provide about 30 dB of quieting at 125 Hz, and up to 45 dB at 4,000 Hz

and higher.  They sell for $360 each at www.quiettechnologies.com, or

their booth at OSH.

 

    Not connected in any way to them.  Just a satisfied customer,

especially after flying with my brother who was using his $1,000 Bose

headset.  We swapped, and both of us found the light Tubephones to be

quieter and more comfortable.

 

Phil

RV-10 20B in Downers Grove, IL  engine + cowling on, lotsa plumbing +

wiring to go

>

> Subject:

> Re: [FlyRotary] nothing to report...

> From:

> Mark Steitle <msteitle@gmail.com>

> Date:

> Mon, 21 Sep 2009 07:26:25 -0500

>

>

> Good report Mike.  I know what you mean about a quieter muffler.  My

> ANR headset does a good job of killing the low frequencies, but a poor

> job on the higher frequencies.  The rotary has both.  So take your

> pick, turn the ANR on and listen to the high frequencies, or turn it

> off and listen to the low rumble.  If I could only find an ANR that

> can do both I would be a happy camper.

> Mark

>

> On Sun, Sep 20, 2009 at 10:55 PM, Mike Wills <rv-4mike@cox.net

> <mailto:rv-4mike@cox.net>> wrote:

>

>     I added another 1.3 hours to my total flight time today. And for

>     the first time I landed and was completely satisfied with the

>     flight. I'd still like to quiet it down a little, but this was the

>     first flight where I didnt feel like there was anything that had

>     to be fixed before the next flight. Even the landing was pretty

>     decent.

>     

>     I've got just over 9 hours of flight time and about 40 hours of

>     engine run time now. So far all of my flight time has been

>     directly over the airport because to venture away requires flying

>     over about 50 miles of mostly unlandable mountainous terrain. But

>     I'm starting to think seriously about stretching the legs a little...

>     

>     Mike Wills

>     RV-4 N144MW

>

>

>

> ------------------------------------------------------------------------

>

> Subject:

> Re: [FlyRotary] Re: nothing to report...

> From:

> Steve Thomas <glasair2@me.com>

> Date:

> Mon, 21 Sep 2009 07:41:57 -0700

>

>

> Mark,

>

> Which ANR do you use?

>

> Best Regards,

>

> Steve Thomas

> _______________________________________________________

>

>

 

--

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