X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Tue, 26 Jul 2011 16:41:20 -0400 Message-ID: X-Original-Return-Path: Received: from [205.186.160.203] (HELO server.rmcginc.com) by logan.com (CommuniGate Pro SMTP 5.4.0) with ESMTPS id 5063773 for lml@lancaironline.net; Tue, 26 Jul 2011 09:34:35 -0400 Received-SPF: none receiver=logan.com; client-ip=205.186.160.203; envelope-from=r.rickard@rcginc-us.com Received: (qmail 26212 invoked from network); 26 Jul 2011 06:33:58 -0700 Received: from mobile-198-228-213-019.mycingular.net (HELO ?10.1.7.174?) (198.228.213.19) by rmcomserver.com with SMTP; 26 Jul 2011 06:33:56 -0700 Subject: Re: [LML] Re: Sound insulation for Lancair 4p References: From: Bob Rickard Content-Type: multipart/alternative; boundary=Apple-Mail-14-520072347 X-Mailer: iPad Mail (8J3) In-Reply-To: X-Original-Message-Id: <85406C00-9226-4D12-AA26-B8CE908588FF@rcginc-us.com> X-Original-Date: Tue, 26 Jul 2011 06:33:52 -0700 X-Original-To: Lancair Mailing List Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (iPad Mail 8J3) --Apple-Mail-14-520072347 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 Agreed! Pressurization is loud. But so worth it when you are at 240 and do= ing 350 ground. No matter of cockpit sound proofing is going to make the pr= essurization air quieter..... Bob R IV-P=20 On Jul 26, 2011, at 4:47 AM, John Hafen wrote: > Ron: >=20 > The IVP screams like hell in the assent. It's a good sound. Power. Clim= b. Gross inefficiency. Major fuel burn. The all American way. >=20 > It chills out in cruse. >=20 > And gets even more quiet in the descent. >=20 > But the down side / disadvantage of all that quiet, is that you are not bu= rning hardly any dinosaur juice at all. Which, depending on your political p= ersuasion, is either good news or bad news.=20 >=20 > Without adding more weight than your already overly heavy IVP can stand, y= ou cannot quiet the IVP enough for climb-out. >=20 > Give up. Kind of like being married. You just deal with it. >=20 > You can't make your bird heavy enough and quiet enough to make it quiet on= climb-out. You don't want to be that heavy. >=20 > It is a noisy frigging airplane. Again, kind of like being married. It's= just noisy. Consider an investment in Noise Canceling Headset technology (= I wear one around the house). Way cheaper than making the airplane quiet. >=20 > John Hafen > IVP N413AJ 300+ hours > j.hafen@comcast.net >=20 > =20 > On Jul 25, 2011, at 1:06 PM, RONALD STEVENS wrote: >=20 > Hello guys >=20 > I am still doing training and getting the last bugs out of the plane here i= n Redmond, but one of the first things I like to do when I am back in Florid= a is getting the Garmin GTN750 and getting more sound Insulation as I think t= he cabin is kind of noisy. >=20 > Specially in climb it does. Funny enough it is the least noisy in descent=E2= =80=A6=E2=80=A6 >=20 > Do you know of any good shops specialized in sound insulation? Thanks >=20 > -- Ronald, 12 hours and counting=E2=80=A6 >=20 > Ps Yes door seal is fine :)~=20 >=20 --Apple-Mail-14-520072347 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8
Agreed!  Pressurization is loud. &= nbsp;But so worth it when you are at 240 and doing 350 ground.  No matt= er of cockpit sound proofing is going to make the pressurization air quieter= .....

Bob R
IV-P 


<= div>
On Jul 26, 2011, at 4:47 AM, John Hafen <j.hafen@comcast.net> wrote:

Ron:

The IVP screams like he= ll in the assent.  It's a good sound.  Power.  Climb.  G= ross inefficiency.  Major fuel burn.  The all American way.
<= div>
It chills out in cruse.

And gets= even more quiet in the descent.

But the down side /= disadvantage of all that quiet, is that you are not burning hardly any dino= saur juice at all.  Which, depending on your political persuasion, is e= ither good news or bad news. 

Without adding m= ore weight than your already overly heavy IVP can stand, you cannot quiet th= e IVP enough for climb-out.

Give up.  Kind of l= ike being married.  You just deal with it.

You= can't make your bird heavy enough and quiet enough to make it quiet on clim= b-out.  You don't want to be that heavy.

It is= a noisy frigging airplane.  Again, kind of like being married.  I= t's just noisy.  Consider an investment in Noise Canceling Headset tech= nology (I wear one around the house).  Way cheaper than making the airp= lane quiet.

John Hafen
IVP N413AJ 300+ ho= urs

 <= br>
On Jul 25, 2011, at 1:06 PM, RONALD STEVENS wrote:

Hello guys

I am still doing training and getting the last bugs out= of the plane here in Redmond, but one of the first things I like to do when= I am back in Florida is getting the Garmin GTN750 and getting more sound In= sulation as I think the cabin is kind of noisy.

Spe= cially in climb it does. Funny enough it is the least noisy in descent=E2=80= =A6=E2=80=A6

Do you know of any good shops speciali= zed in sound insulation? Thanks

-- Ronald, 12 hours= and counting=E2=80=A6

Ps Yes door seal is fine :)~=  

= --Apple-Mail-14-520072347--