X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.123] verified) by logan.com (CommuniGate Pro SMTP 5.3.8) with ESMTP id 4413984 for flyrotary@lancaironline.net; Sun, 01 Aug 2010 10:48:36 -0400 Received-SPF: pass receiver=logan.com; client-ip=75.180.132.123; envelope-from=eanderson@carolina.rr.com Return-Path: X-Authority-Analysis: v=1.1 cv=UmXZWupe4sRXzVmDSlBdSzmDHC7SbwGEnE0ZMitDzeU= c=1 sm=0 a=pavx0Go1UGgA:10 a=Er6hwA6a1l4K/FyzC6NN7w==:17 a=Ia-xEzejAAAA:8 a=3oc9M9_CAAAA:8 a=pedpZTtsAAAA:8 a=arxwEM4EAAAA:8 a=r1ClD_H3AAAA:8 a=QdXCYpuVAAAA:8 a=7g1VtSJxAAAA:8 a=EhdFBuaeopTxLGsdtb4A:9 a=t-OdKz3d2NH6xlkf53sA:7 a=HVsaX8PK5pr5rLqjGlkxtdpAU_UA:4 a=wPNLvfGTeEIA:10 a=EzXvWhQp4_cA:10 a=U8Ie8EnqySEA:10 a=eJojReuL3h0A:10 a=lJj7iJvgBRwoNYxl:21 a=wS_eSBQLrHi4PCFI:21 a=KvLDQ8j212rA-cmRqFcA:9 a=7u3tm4RtRBBqlxviOkEA:7 a=U2xx39IWeBto5brGQ_5lTF6pObQA:4 a=MfAwGXE0r5ZF_1wn:21 a=_Lh-vi4-UhRkFypn:21 a=Er6hwA6a1l4K/FyzC6NN7w==:117 X-Cloudmark-Score: 0 X-Originating-IP: 75.181.123.159 Received: from [75.181.123.159] ([75.181.123.159:63258] helo=EdPC) by cdptpa-oedge03.mail.rr.com (envelope-from ) (ecelerity 2.2.2.39 r()) with ESMTP id 8B/85-11447-F19855C4; Sun, 01 Aug 2010 14:48:00 +0000 Message-ID: <8C7F45B0894847ED839214EB6F9D081E@EdPC> From: "Ed Anderson" To: "Rotary motors in aircraft" References: In-Reply-To: Subject: Re: [FlyRotary] Re: Prop Selection Date: Sun, 1 Aug 2010 10:47:42 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000F_01CB3166.F80C1E00" X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 14.0.8117.416 X-MimeOLE: Produced By Microsoft MimeOLE V14.0.8117.416 This is a multi-part message in MIME format. ------=_NextPart_000_000F_01CB3166.F80C1E00 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Yes, I am getting 6000 static with the 74x88. Before I had it cut down = 2" in dia and it was 76x88, I was getting 5800 rpm static. So in my = case for each 1" shorter it appeared to pick up 100 rpm static. Yes, I = think a similar Catto prop would give same approximate results. At the = time the 76" dia was the largest dia you could get because that was the = length of the longest wooden blank Performance Prop used in making a = prop. Ed From: Bill Bradburry=20 Sent: Sunday, August 01, 2010 9:06 AM To: Rotary motors in aircraft=20 Subject: [FlyRotary] Re: Prop Selection Brian, They can correct me, but I think that both Ed and Tracy are getting = about 5800-6000 rpm static with a 74 X 88 prop made by Performance = Props. The Catto should probably be similar. =20 Bill B =20 -------------------------------------------------------------------------= ------- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On = Behalf Of bktrub@aol.com Sent: Sunday, August 01, 2010 12:26 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Prop Selection =20 I've run the engine up to ~4500 RPM. I don't have a turbo. I think I = could get a few more hundred RPM out of it, but I have not run the = throttle to the stop, I think. I hope to have it up in the air by the = end of August.=20 =20 Brian Trubee =20 -----Original Message----- From: Bill Bradburry To: Rotary motors in aircraft Sent: Sat, Jul 31, 2010 7:49 pm Subject: [FlyRotary] Re: Prop Selection Have you run the engine yet, Brian? If so, what is your max static rpm? = I don't remember if you have a turbo?? =20 Bill B =20 -------------------------------------------------------------------------= ------- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On = Behalf Of bktrub@aol.com Sent: Saturday, July 31, 2010 3:30 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Prop Selection =20 I have a 74 x 88 Catto two blade on my RV-4, with a 13BREW & 2.85 = redrive. I haven't flow it yet, but I think it will be a good prop. = Catto makes good props. =20 Brian Trubee =20 -----Original Message----- From: Bob Perkinson To: Rotary motors in aircraft Sent: Sat, Jul 31, 2010 12:24 pm Subject: [FlyRotary] Prop Selection I am now Prop shopping for my RV-9 13B with the 2.85 RD1-C and am = leaning towards a Craig Catto prop. Craig has recommended a 3 bladed = prop 70" X 88". He says that a 2 bladed 76"X 88" prop would have to be = 7 inches wide at the root and 3.5 inches wide at the tip, the three = bladed prop would have a thiner look to it. Three bladed prop looks = good sitting on the ramp, but nobody sees the prop when it is spinning. = Ground clearance might be a problem with the 76" prop. Not sure, I have = not taken a measurement on this as yet. =20 What other venders would the group recommend? I would like to hear some = opinions. =20 =20 Bob Perkinson RV-9 N658RP (reserved) Ed Anderson Rv-6A N494BW Rotary Powered http://www.andersonee.com http://www.eicommander.com Http://www.dmack.net/mazda/index.html http://www.flyrotary.com ------=_NextPart_000_000F_01CB3166.F80C1E00 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Yes, I am getting 6000 static with the = 74x88.  Before=20 I had it cut down 2" in dia and it was 76x88, I was getting 5800 rpm=20 static.  So in my case for each 1" shorter it appeared to pick up = 100 rpm=20 static.  Yes, I think a similar Catto prop would give same = approximate=20 results.  At the time the 76" dia was the largest dia you could get = because=20 that was the length of the longest wooden blank Performance Prop used in = making=20 a prop.
 
Ed

Sent: Sunday, August 01, 2010 9:06 AM
Subject: [FlyRotary] Re: Prop Selection

Brian,

 They = can correct=20 me, but I think that both Ed and Tracy are getting about 5800-6000 rpm = static=20 with a 74 X 88 prop made by Performance Props.  The Catto should = probably=20 be similar.

 

Bill=20 B

 

From:=20 Rotary motors in aircraft=20 [mailto:flyrotary@lancaironline.net] On=20 Behalf Of bktrub@aol.com
Sent: Sunday, August 01, 2010 = 12:26=20 AM
To: = Rotary motors in aircraft
Subject: [FlyRotary] Re: Prop=20 Selection

 

I've run the = engine up=20 to ~4500 RPM. I don't have a turbo. I think I could get a few more  = hundred=20 RPM out of it, but I have not run the throttle to the stop,  I = think. I=20 hope to have it up in the air by the end of August.=20

 

Brian=20 Trubee

 

-----Original=20 Message-----
From: Bill Bradburry <bbradburry@bellsouth.net>
To: = Rotary motors in aircraft=20 <flyrotary@lancaironline.net>
Sent: Sat, Jul 31, 2010 7:49=20 pm
Subject: [FlyRotary] Re: Prop = Selection

Have you run = the engine=20 yet, Brian?  If so, what is your max static rpm?  I don=92t = remember if=20 you have a turbo??

 

Bill=20 B

 

From: = Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]=20 On Behalf Of bktrub@aol.com
Sent: Saturday, July 31, 2010 = 3:30=20 PM
To: = Rotary motors in aircraft
Subject: [FlyRotary] Re: Prop=20 Selection

 

I have a 74 = x 88 Catto=20 two blade on my RV-4, with a 13BREW  & 2.85 redrive. I haven't = flow it=20 yet, but I think it will be a good prop. Catto makes good=20 props.

 

Brian=20 Trubee

 

-----Original=20 Message-----
From: Bob Perkinson <bobperk90658@bellsouth.net>
To:=20 Rotary motors in aircraft = <flyrotary@lancaironline.net>
Sent:=20 Sat, Jul 31, 2010 12:24 pm
Subject: [FlyRotary] Prop=20 Selection

I am now Prop shopping for my = RV-9 13B=20 with the 2.85 RD1-C and am leaning towards a Craig Catto prop. =  Craig has=20 recommended a 3 bladed prop 70" X 88".  He says that a 2 bladed = 76"X 88"=20 prop would have to be 7 inches wide at the root and 3.5 inches wide at = the tip,=20 the three bladed prop would have a thiner look to it.  Three bladed = prop=20 looks good sitting on the ramp, but nobody sees the prop when it is = spinning.=20  Ground clearance might be a problem with the 76" prop.  Not = sure, I=20 have not taken a measurement on this as yet. 

What other venders would the = group=20 recommend?  I would like to hear some opinions.   =

 

Bob Perkinson

RV-9 N658RP = (reserved)

Ed Anderson
Rv-6A N494BW Rotary Powered
http://www.andersonee.com
http://www.eicommander.com
Http://www.dmack.net/mazda= /index.html
http://www.flyrotary.com
 
 
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