X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fed1rmpop109.cox.net ([68.230.241.13] verified) by logan.com (CommuniGate Pro SMTP 5.2.14) with ESMTP id 3631167 for flyrotary@lancaironline.net; Mon, 04 May 2009 07:07:31 -0400 Received-SPF: none receiver=logan.com; client-ip=68.230.241.13; envelope-from=alventures@cox.net Received: from fed1rmimpo03.cox.net ([70.169.32.75]) by fed1rmmtao102.cox.net (InterMail vM.7.08.02.01 201-2186-121-102-20070209) with ESMTP id <20090504010605.YONE20976.fed1rmmtao102.cox.net@fed1rmimpo03.cox.net> for ; Sun, 3 May 2009 21:06:05 -0400 Received: from BigAl ([72.192.135.181]) by fed1rmimpo03.cox.net with bizsmtp id nD641b0043uzsQg04D64dy; Sun, 03 May 2009 21:06:04 -0400 X-Authority-Analysis: v=1.0 c=1 a=Ia-xEzejAAAA:8 a=jSriGiUaAAAA:8 a=TwQgnJ6b4JmITU1-i7kA:9 a=YCG4PN3JpX09ydEthOcA:7 a=rle4m84XgbGIVuWCoTBtxdKlaFwA:4 a=EzXvWhQp4_cA:10 a=8uOHU_bN98iZLsns:21 a=5x0W8QhqAfdzHXLA:21 a=vkAMT-5jStIA8JV7_eIA:9 a=E2EAJhBOjXjZtW06EtEA:7 a=1k0RWMWdT-afhXQiBgDvBpGI684A:4 X-CM-Score: 0.00 From: "Al Gietzen" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: prop? Date: Sun, 3 May 2009 18:07:20 -0800 Message-ID: <45F0FE8A7DF646B28F69F371A880406D@BigAl> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_005A_01C9CC1A.008EBBE0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6838 In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 Thread-Index: AcnMNuzOW9a1jT8cT8CpP1AH+OW65QAJRYcg Importance: Normal This is a multi-part message in MIME format. ------=_NextPart_000_005A_01C9CC1A.008EBBE0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable But the MT website definitely says 160 max. Yes; but 160 what? Are you sure the units are hp? Maybe KW; or = something else. I think 160 KW translates to about 215 hp, but I haven't looked = it up. Still sounds to low for the prop. Isn't a 73" 3-blade a bit+ much = for your plane and engine? What's your max prop rpm? =20 Al G BW =20 =20 _____ =20 From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Bobby J. Hughes Sent: Sunday, May 03, 2009 5:50 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: prop? =20 Bryan, =20 Not sure about the HP rating. Sounds too low. With the MT you should be = able to turn 7500 rpm. The holes can be opened up. Jim at http://www.lessdrag.com/ is an MT dealer that a couple of us purchased = our props from. Jim sells the 7/16 threaded Lycoming inserts but they are = not cheep. I think the Egg subi guys put the prop in manual mode before = doing acro.=20 =20 Bobby =20 _____ =20 From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Bryan Winberry Sent: Sunday, May 03, 2009 2:23 PM To: Rotary motors in aircraft Subject: [FlyRotary] prop? I'm a novice when it comes to props. So, could I get some advice about = the following prop that a guy has for sale. I have a Renesis with the RD-1C (RV 7). Plan on using the rotary cowl. The prop is question is a 3-blade MT. Model MTV 7-C-187-139. that's = 73" diameter, electrically adjustable. Firstly, the bolts are 7/16 and the PSRU is 3/8th. Would there be a = problem opening the holes? Secondly, the website (MT) indicates that 160 is max HP for the prop, = but it also says that 175 is max diameter. This one is 187cm (73"). I have sent an email to MT regarding this, but want to let it get kicked around here on the forum. Lastly, in the construction manual, Van's doesn't recommend aerobatics = with an electrically adjustable prop. Thanks in advance for your replies. Bryan ------=_NextPart_000_005A_01C9CC1A.008EBBE0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

But the MT = website definitely says 160 max.

Yes; but 160 what?  Are you = sure the units are hp?  Maybe KW; or something else.  I think 160 = KW translates to about 215 hp, but I haven’t looked it up.  = Still sounds to low for the prop.  Isn’t a 73” 3-blade a bit+ = much for your plane and engine?  What’s your max prop = rpm?

 

Al G

BW<= /p>

 

 

From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Bobby J. Hughes
Sent: Sunday, May 03, 2009 5:50 = PM
To: Rotary motors in = aircraft
Subject: [FlyRotary] Re: = prop?

 

Bryan,

 

Not sure about = the HP rating. Sounds too low. With the MT you should be able to turn 7500 rpm.  The holes can be opened up. Jim at http://www.lessdrag.com/ is = an MT dealer that a couple of us purchased our props from. Jim sells the 7/16 threaded Lycoming inserts but they are not cheep.  I think the Egg = subi guys put the prop in manual mode before doing = acro. 

 

 Bobby

 

From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Bryan Winberry
Sent: Sunday, May 03, 2009 2:23 = PM
To: Rotary motors in = aircraft
Subject: [FlyRotary] = prop?

I’m a novice when it = comes to props. So, could I get some advice about the following prop that a guy = has for sale.

I have a Renesis with the = RD-1C (RV 7). Plan on using the rotary cowl.

The prop is question is a = 3-blade MT.  Model MTV 7-C-187-139.  that’s 73” diameter, electrically adjustable.

Firstly, the bolts are 7/16 = and the PSRU is 3/8th.  Would there be a problem opening the = holes?

Secondly, the website (MT) = indicates that 160 is max HP for the prop, but it also says that 175 is max = diameter.  This one is 187cm (73”).

I have sent an email to MT = regarding this, but want to let it get kicked around here on the = forum.

Lastly, in the construction = manual, Van’s doesn’t recommend aerobatics with an electrically = adjustable prop.

Thanks in advance for your = replies.

Bryan

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