X-Junk-Score: 0 [] X-Cloudmark-Score: 0 [] X-Cloudmark-Analysis: v=2.2 cv=aM2ykv1m c=1 sm=1 tr=0 a=rMa9TuGvsBLbi90bY4IYkw==:117 a=vhm3GwjUlMip0Inz7/w+Eg==:17 a=KGjhK52YXX0A:10 a=KeKAF7QvOSUA:10 a=WtkM1PE0Q-4A:10 a=r77TgQKjGQsHNAKrUKIA:9 a=Ia-xEzejAAAA:8 a=vTeK4bAqF8Mqp2M_5PgA:9 a=3vwHuCrCRC6U3vUu:21 a=13KTCvUraK0dI7dP:21 a=QEXdDO2ut3YA:10 a=YKvYz2gaNqJteW9tsfkA:9 a=EqIlLXdLCl6MWwrq:21 a=0A9VAj134FDJgN6k:21 a=padyU0th9Rkso-Je:21 a=_W_S_7VecoQA:10 a=Urk15JJjZg1Xo0ryW_k8:22 From: "Ed Anderson" Received: from [107.14.166.230] (HELO cdptpa-oedge-vip.email.rr.com) by logan.com (CommuniGate Pro SMTP 6.2c3) with ESMTPS id 10045826 for flyrotary@lancaironline.net; Fri, 25 Aug 2017 08:10:35 -0400 Received-SPF: pass receiver=logan.com; client-ip=107.14.166.230; envelope-from=eanderson@carolina.rr.com Return-Path: Received: from [71.75.201.150] ([71.75.201.150:52477] helo=EdPC) by cdptpa-omsmta02 (envelope-from ) (ecelerity 3.6.9.48312 r(Core:3.6.9.0)) with ESMTP id 82/48-16607-AA310A95; Fri, 25 Aug 2017 12:10:18 +0000 Message-ID: To: "Rotary motors in aircraft" References: In-Reply-To: Subject: Re: [FlyRotary] Re: Old IVO Prop blades for sale Date: Fri, 25 Aug 2017 08:10:18 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00B9_01D31D79.97422860" X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 16.4.3528.331 X-MimeOLE: Produced By Microsoft MimeOLE V16.4.3528.331 X-RR-Connecting-IP: 107.14.168.7:25 This is a multi-part message in MIME format. ------=_NextPart_000_00B9_01D31D79.97422860 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hi Todd, I understand, actually his airframe is a bit more draggy than an RV. = However, having said that, Max informed me he had talked to IVO and they = suggested the try converting his IVO to a two bladed version, they = indicated to him that would interfere less with airflow into his cooling = inlets. Tracy Crook tried an IVO prop many years back and came to the same = conclusion as you, it was great for take off and climb out but he hit a = =E2=80=9Cwall=E2=80=9D around 170 mph and he also noted it interfered = with cooling as well. =20 I=E2=80=99ll let you know if Max is interested, but right now I think he = is going to try the two bladed version Thanks for you candor, Todd =E2=80=93 always refreshing Ed From: Todd Bartrim=20 Sent: Friday, August 25, 2017 3:25 AM To: Rotary motors in aircraft=20 Subject: [FlyRotary] Re: Old IVO Prop blades for sale Hi Ed; =20 I actually wasn't thinking that these would be very ideal for Max as = I would have expected his airframe to be similar to an RV airframe. I = would expect that He would want the deep pitch version like I just = switched to.=20 But if he's finished with long trips where a high cruise speed is a big = priority and is just going to be flying in the Austrian mountains, then = yes this prop does have excellent take-off and climb performance. I = could get off the ground in 300' (paved runway @2000'asl) and then = sustain a 2400'/minute climb rate to 10000'asl. But it cruised best at a = meager 120-130 mph. Top speed I ever recall seeing in level flight was = 170mph. The blades are easy to cut down, and I should have done it, as It = would have helped the top speed I believe, but I knew that eventually I = would want to replace them with the deep pitch blades, and if they were = still full length it would be easier to find a new home for them. I don't know the specs for Max's plane, but I'd suggest he do some = research first as I wouldn't think they would be his best choice and he = will still have to by a hub as well. And it should be the electric hub = to get the most performance out of these blades. The electric CS = governor is a nice addition too. If I seem like I'm trying to avoid perspective customers, I just want = to be honest about it. I originally bought it used (almost new, never = flown) from a former list member long ago who was being forced to sell = off his project. I was still pretty naive about props back then (still = am :-), but he was never dishonest, while still being pretty = enthusiastic about how it would be a great prop for me. First flight was = somewhat tempered with disappointment at cruise speeds, but I learned to = be very happy with the climb instead. Todd - could never sell used cars! Todd Bartrim On Thu, Aug 24, 2017 at 11:00 AM, Ed Anderson = wrote: Thanks, Todd I=E2=80=99ll pass this on to Max and see if he may be interested in = getting some IVO prop blades to modify. Ed From: Todd Bartrim=20 Sent: Thursday, August 24, 2017 1:34 PM To: Rotary motors in aircraft=20 Subject: [FlyRotary] Old IVO Prop blades for sale I no longer have a need for my old prop blades. They are = 76"=C3=9730-90", left hand turning. (can be cut down)=20 I'm selling without the hub as im using that with the new blades.=20 These are not suited for a small, fast airplane, but would be good = for a larger slower airplane that wants a variable pitch.=20 Unfortunately (for me)a large, slow airplane would probably also = be better suited to using the RD-1C with 2.85:1 reduction which is right = hand turning. So most likely prospective buyer already has this prop and may be = interested in a few spare replacement blades. If someone needed these for a new install then they would have to = buy the hub from IVO. I'm not even sure what these would be worth, so I'm open to offers. ------=_NextPart_000_00B9_01D31D79.97422860 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hi Todd,
 
I understand, actually his airframe is a bit more draggy than an = RV. =20 However, having said that, Max informed me he had talked to IVO and they = suggested the try converting his IVO to a two bladed version, they = indicated to=20 him that would interfere less with airflow into his cooling = inlets.
 
Tracy Crook tried an IVO prop many years back and came to the same=20 conclusion as you, it was great for take off and climb out but he hit a = =E2=80=9Cwall=E2=80=9D=20 around 170 mph and he also noted it interfered with cooling as = well. =20
 
I=E2=80=99ll let you know if Max is interested, but right now I = think he is going=20 to try the two bladed version
 
Thanks for you candor, Todd =E2=80=93 always refreshing
 
Ed
 
Sent: Friday, August 25, 2017 3:25 AM
Subject: [FlyRotary] Re: Old IVO Prop blades for=20 sale
 
Hi Ed; =20
   I actually wasn't thinking that these would be very = ideal for=20 Max as I would have expected his airframe to be similar to an RV = airframe. I=20 would expect that He would want the deep pitch version like I just = switched to.=20
But if he's finished with long trips where a high cruise speed is a = big=20 priority and is just going to be flying in the Austrian mountains, then = yes this=20 prop does have excellent take-off and climb performance. I could get off = the=20 ground in 300' (paved runway @2000'asl) and then sustain a 2400'/minute = climb=20 rate to 10000'asl. But it cruised best at a meager 120-130 mph. Top = speed I ever=20 recall seeing in level flight was 170mph.
   The blades are easy to cut down, and I should have = done it, as=20 It would have helped the top speed I believe, but I knew that eventually = I would=20 want to replace them with the deep pitch blades, and if they were still = full=20 length it would be easier to find a new home for them.
   I don't know the specs for Max's plane, but I'd = suggest he do=20 some research first as I wouldn't think they would be his best choice = and he=20 will still have to by a hub as well. And it should be the electric hub = to get=20 the most performance out of these blades. The electric CS governor is a = nice=20 addition too.
   If I seem like I'm trying to avoid perspective = customers, I=20 just want to be honest about it. I originally bought it used (almost = new, never=20 flown) from a former list member long ago who was being forced to sell = off his=20 project. I was still pretty naive about props back then (still am :-), = but he=20 was never dishonest, while still being pretty enthusiastic about how it = would be=20 a great prop for me. First flight was somewhat tempered with = disappointment at=20 cruise speeds, but I learned to be very happy with the climb = instead.
 
Todd   -  could never sell used cars!
 
Todd Bartrim
 
On Thu, Aug 24, 2017 at 11:00 AM, Ed Anderson = <flyrotary@lancaironline.net> wrote:
Thanks, Todd
 
I=E2=80=99ll pass this on to Max and see if he may be interested = in getting some=20 IVO prop blades to modify.
 
Ed
 
From: Todd = Bartrim=20
Sent: Thursday, August 24, 2017 1:34 PM
Subject: [FlyRotary] Old IVO Prop blades for=20 sale
 
I=20 no longer have a need for my old prop blades. They are = 76"=C3=9730-90", left hand=20 turning. (can be cut down)=20
I'm selling without the hub as im using that with the new blades. =
  These are not suited for a small, fast airplane, but would = be good=20 for a larger slower airplane that wants a variable pitch.
    Unfortunately (for me)a large, slow airplane = would=20 probably also be better suited to using the RD-1C with 2.85:1 = reduction which=20 is right hand turning.
   So most likely prospective buyer already has this = prop and=20 may be interested in a few spare replacement blades.
   If someone needed these for a new install then they = would=20 have to buy the hub from IVO.
   I'm not even sure what these would be worth, so I'm = open to=20 offers.
 
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