X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from outbound-b1.mx-route.com ([208.123.79.45] verified) by logan.com (CommuniGate Pro SMTP 5.4c2) with ESMTP id 4905306 for flyrotary@lancaironline.net; Sun, 13 Mar 2011 20:59:27 -0400 Received-SPF: none receiver=logan.com; client-ip=208.123.79.45; envelope-from=tom@midwestaviation.net Received: from fl-184-0-224-156.dhcp.centurylinkservices.net (HELO [192.168.1.69]) ([184.0.224.156]) by smtp.mxtoolbox.com with ESMTP/TLS/AES128-SHA; 13 Mar 2011 19:58:52 -0500 From: Thomas Giddings Mime-Version: 1.0 (Apple Message framework v1082) Content-Type: multipart/alternative; boundary=Apple-Mail-33--365415945 Subject: Re: [FlyRotary] Re: Marcotte PSRU vs 550HP Turbo/20B Date: Sun, 13 Mar 2011 20:58:51 -0400 In-Reply-To: To: "Rotary motors in aircraft" References: Message-Id: X-Mailer: Apple Mail (2.1082) --Apple-Mail-33--365415945 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=windows-1252 Al:Thanks for the input..I like Tracy's inline system as well. The = Marcotte is offset 1.5" . However on my application it is actually a = plus. How much HP do you estimate on your Velocity?=20 Tom On Mar 13, 2011, at 9:41 PM, Al Gietzen wrote: > Tom; > =20 > I have no comment about the quality/capacity of the Marcotte; but I = think the 2.4 ratio is a good one. I had considered the Marcotte for = that reason, but liked the in-line drive of the planetary, and had more = confidence in Tracy=92s overall design and coupling design. > =20 > Al (Velocity 20B; 210 hours and counting) > =20 > -----Original Message----- > From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] = On Behalf Of Thomas Giddings > Sent: Sunday, March 13, 2011 11:37 AM > To: Rotary motors in aircraft > Subject: [FlyRotary] Re: Marcotte PSRU vs 550HP Turbo/20B > =20 > Thanks Kelly for the reply...Guy Marcotte claims 600HP is not a = problem....I would really like to hear from others with first hand = knowledge...I just read of his PSRU being used on a Glassair /Suburu = project. They had broken the gear ,but it was from a prop strike...I am = gathering up what I need to mock this up in the Airframe and need to = make a decision on it fairly soon...Honestly I had made my mind up it = was the best choice for my application . > Tom Giddings > VP Avionics Sales > MIDWEST AVIONICS > 200 Hardy Roberts Dr > PO Box 219 > West Paducah,KY 42086 > 877-904 9966 > Cell; 727 858-1772 > FAX:270 744 3466 > tom@midwestaviation.net > Online Store > www.midwest-avionics.com >=20 > > =20 > On Mar 13, 2011, at 3:15 PM, Kelly Troyer wrote: >=20 >=20 > Thomas, > What HP rating is Marcotte claiming for his PSRU = ?...............=46rom the experience of a few users > on this group and others using product have reported it seems to have = a checkered operational and > maintenance history..............John of this group (13B/Marcotte in = Tailwind) reported a problem he had > to resolve not long ago..............John jump in here and give Thomas = your experience and if you think > this PSRU will stand up to a Turbo/20B of about 550+ = HP..................I personally would have severe > reservations about the Marcotte at that power level..............FWIW > =20 > =20 > Kelly Troyer > "DYKE DELTA JD2" (Eventually) >=20 > "13B ROTARY"_ Engine > "RWS"_RD1C/EC2/EM2 > "MISTRAL"_Backplate/Oil Manifold >=20 > "TURBONETICS"_TO4E50 Turbo >=20 > =20 > =20 > From: Thomas Giddings > To: Rotary motors in aircraft > Sent: Sun, March 13, 2011 1:37:10 PM > Subject: [FlyRotary] Re: Crankcase ventilation >=20 > Does anyone have any experience using a 2.40 gear reduction on the = 20B? I am going to use the Marcotte PSRU only because he has a much = higher HP Rating and it is only offered in the 2.40 ratio in the = configuration I am using. However I notice everyone uses the 2.85 more = commonly. Is there a specific reason why this would be better for the = 20B?. I would appreciate any input any of you might have to offer. > =20 > Kind Regards > Tom=20 >=20 > =20 > =20 --Apple-Mail-33--365415945 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=windows-1252 Al:Thanks for the input..I like Tracy's inline = system as well. The Marcotte is offset 1.5" . However on my application = it is actually a plus. How much HP do you estimate on your = Velocity? 

Tom

On Mar 13, 2011, at 9:41 PM, Al Gietzen wrote:

 

I have no = comment about the quality/capacity of the Marcotte; but I think the 2.4 = ratio is a good one. I had considered the Marcotte for that reason, but = liked the in-line drive of the planetary, and had more confidence = in Tracy=92s overall design and = coupling design.

Al (Velocity 20B; 210 = hours and counting)

-----Original = Message-----
 Rotary motors in aircraft = [mailto:flyrotary@lancaironline.net] On Behalf Of Thomas = Giddings
Sent: Sunday, March 13, 2011 = 11:37 AM
To: Rotary motors in = aircraft
 [FlyRotary] Re: Marcotte = PSRU vs 550HP Turbo/20B

 

Thanks Kelly for the reply...Guy Marcotte = claims 600HP is not a problem....I would really like to hear from others = with first hand knowledge...I just read of his PSRU being used on a = Glassair /Suburu project. They had broken the gear ,but it was from a = prop strike...I am gathering up what I need to mock this up in the = Airframe and need to make a decision on it fairly soon...Honestly I had = made my mind up it was the best choice for my application = .
MIDWEST AVIONICS
200 = Hardy Roberts Dr
PO Box 219
West Paducah,KY 42086
877-904 = 9966
Cell; 727 858-1772
FAX:270 744 3466
Online Store
 

On Mar 13, 2011, at 3:15 PM, Kelly Troyer = wrote:
on this group and others = using product have reported it seems to have a checkered = operational and
to resolve not long ago..............John = jump in here and give Thomas your experience and if you = think
this = PSRU will stand up to a Turbo/20B of about 550+ HP..................I = personally would have severe
reservations about the Marcotte at that = power level..............FWIW
 
 

Kelly = Troyer
"DYKE DELTA = JD2""13B ROTARY"_ = Engine
"RWS"_RD1C/EC2/EM2
"MISTRAL"_Backplate/Oil = Manifold

"TURBONETICS"_TO4E50 Turbo