X-Junk-Score: 0 [] X-Cloudmark-Score: 0 [] X-Cloudmark-Analysis: v=2.2 cv=aM2ykv1m c=1 sm=1 tr=0 a=dZ999rAERPaN1ClzR8ro2w==:117 a=x7bEGLp0ZPQA:10 a=JZygid9Izu4A:10 a=KeKAF7QvOSUA:10 a=Ia-xEzejAAAA:8 a=_6GpL_ENAAAA:8 a=VAzM7EH49-q3zFRTNPMA:9 a=GIJAGhYPD8VuoBqK:21 a=ONOX3lUSv8tudAqx:21 a=QEXdDO2ut3YA:10 a=QEdPRYks1C_mhjBo4YUA:9 a=tonLw8XmY-GzUkH1:21 a=OODPvLTL1vM6ernb:21 a=vHFfxO6qI65wCu_n:21 a=Urk15JJjZg1Xo0ryW_k8:22 From: "Kelly Troyer" Received: from mail-oi0-f45.google.com ([209.85.218.45] verified) by logan.com (CommuniGate Pro SMTP 6.2c3) with ESMTPS id 10048388 for flyrotary@lancaironline.net; Fri, 25 Aug 2017 20:47:53 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.218.45; envelope-from=keltro@gmail.com Received: by mail-oi0-f45.google.com with SMTP id k77so11193091oib.2 for ; Fri, 25 Aug 2017 17:47:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to; bh=r9TWljeKUbaAwQe1JsVs72ZxC4mXKvpuvtcb9re/Scw=; b=rW7Uxale0+Cpqr225ipEF2XTEeZbLAS93Z5irzcZA9Dc4vBuu/0jJDQbABVoinK1yC QTeIzUE6MjyoKKQEOwSSF3rLVvah5mVlXts2oZC2yXXjF8J9lRNwUQvjm/JsuA5l/UAH 9KM/2ieJaZCGLneQil6FYVJ5u3mpRchYC416ip8KMGuUJWkLP0EdeQ9FDNeN7qnf34TI Dq7NlMEc+LVannxn4iXBAocoZaoae/3Y9P6antx+331iWiCrZKsq7gdDAf0juaoVkISB MpE8P9cIAzVNEIqiHauCHyqsFgi9RKBHw5TuUljKz5ygY8OGRAzbac4UosMQW7ldPcXX pP4Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to; bh=r9TWljeKUbaAwQe1JsVs72ZxC4mXKvpuvtcb9re/Scw=; b=AlDZxIKk0ZqJDkbpPiNIhFFpIX62YRpJv7GTlcNT8y6DL4e6TufoqUd8sSKIjGFrNG swJo0gKMqxo5VVg23E7MaGl8AcMMZ1WB1lt3m9Xyvg2JaClX0X2y+Gsr0o8jlbRSoV14 CeBfBMj3dEkuU3uYi4bwKq828+KonaMDIbqHpl17t9drWgc6i/T+u9+u+fgWfDFKKi/i 82NPV3YjK6uOtjCNYYkvaLOeR2/jBavAPBOOJePxqvniiYhH1tpid8qFQ/c5IAa+gTvU 6PVPWATxMyygG9YXDyIOnSolkb6B9DkNogFPG5zXpwMgdT4yRO8fAyU5w8sfy4jf6XT2 uTCw== X-Gm-Message-State: AHYfb5jYG/NOpE5wvatBvgu6ljmPA6ts2mAvzkqzh8mYkRdi0PUDarKZ Ug2QAU0wumP1wWmtl1B9qUyLi46euQ== X-Received: by 10.202.245.202 with SMTP id t193mr439914oih.59.1503708454914; Fri, 25 Aug 2017 17:47:34 -0700 (PDT) MIME-Version: 1.0 Received: by 10.157.12.251 with HTTP; Fri, 25 Aug 2017 17:47:34 -0700 (PDT) In-Reply-To: References: Date: Fri, 25 Aug 2017 18:47:34 -0600 Message-ID: Subject: Re: [FlyRotary] Re: Old IVO Prop blades for sale To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary="001a113b006c4d115105579d6818" --001a113b006c4d115105579d6818 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Todd, Will be very interested in the climb and speed changes that the high pitch blades give you..........Even though I have gone to the dark side for now (Lycoming) in the hope of getting my project in the air in this life time I still hope to use a Rotary at some point.........I have a "IVO" with (74"x30x90) blades and electric hub.........The flat area of the blades next to the hubs has been blamed for blocking the cooling air and increasing drag which was holding top speed down.........I ventured an opinion several years ago that covering the flat area with a larger spinner might negate much of this drag..........I suggested that a 16 inch "Mustang Two" spinner would cover most of this flat area of the "IVO" hub......... Kelly Troyer On Fri, Aug 25, 2017 at 9:34 AM, Todd Bartrim wrote: > Apparently IVO won't even sell them to you if you have a Lyc. When I > first contacted them, the first thing they asked was what engine I have. = I > expected the usual bewilderment about the rotary but they were quite > approving and commented on the smoothness of it. > As Charlie mentioned the blades can be configured with 2 or 3 blades > but spacer blocks are required to use for 2 blades. I carry these 2 block= s > with me in the plane as incase of a minor prop strike leaving one damaged > blade but otherwise ok, it could be reconfigured and then flown home for > further repairs. At least that's what IVO said when he sold me the blocks= . > But they were cheap enough and don't weigh much. > Most negative reviews about the IVO on faster aircraft never seem to > mention whether it was with the standard or deep pitch blades and the few > enquiries I've made went unanswered, so I suspect that they were the > standard. I've read one good review that was with the deep pitch that > sounded overly optimistic. > But I'm so optimistic myself about the performance of these deep pitch > blades that I bet $1050usd on it (That's a whole lot more Canadian $$$). > But really I can't complain much as a good friend has often mentioned= , > he spent $10k on a CS prop to bolt onto the IO540 that he spent $45k > getting rebuilt and he hasn't flown it in a year because he can't solve t= he > cylinder cooling issues (in a BD4). > He endorses my choice for a rotary as he did all the initial flight > testing with me while teaching me to fly. > > On Fri, Aug 25, 2017, 05:51 Charlie England, > wrote: > >> One of the (few) advantages of the IVO is that you can use it in 2 blade >> or 3 blade configuration in the same hub. If Max wants to try one, he co= uld >> buy just a hub from IVO & get Todd's blades. >> >> Charlie >> (Been there, done that (on a Lyc); got the lousy cruise speed T shirt. >> BTW, never, ever, consider one for a Lyc, on *any* airframe.) >> >> >> On Fri, Aug 25, 2017 at 7:10 AM, Ed Anderson > > wrote: >> >>> 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 the= y >>> suggested the try converting his IVO to a two bladed version, they >>> indicated to him that would interfere less with airflow into his coolin= g >>> 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 w= ith cooling as >>> well. >>> >>> I=E2=80=99ll let you know if Max is interested, but right now I think h= e is >>> going to try the two bladed version >>> >>> Thanks for you candor, Todd =E2=80=93 always refreshing >>> >>> Ed >>> >>> *From:* Todd Bartrim >>> *Sent:* Friday, August 25, 2017 3:25 AM >>> *To:* Rotary motors in aircraft >>> *Subject:* [FlyRotary] Re: Old IVO Prop blades for sale >>> >>> Hi Ed; >>> 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 w= ould >>> expect that He would want the deep pitch version like I just switched t= o. >>> 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 g= et >>> 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 wan= t >>> 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 wit= h >>> disappointment at cruise speeds, but I learned to be very happy with th= e >>> 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 ge= tting >>>> some IVO prop blades to modify. >>>> >>>> Ed >>>> >>>> *From:* Todd Bartrim >>>> *Sent:* Thursday, August 24, 2017 1:34 PM >>>> *To:* Rotary motors in aircraft >>>> *Subject:* [FlyRotary] Old IVO Prop blades for sale >>>> >>>> I no longer have a need for my old prop blades. They are 76"=C3=9730-9= 0", >>>> left hand turning. (can be cut down) >>>> 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 >>>> for a larger slower airplane that wants a variable pitch. >>>> Unfortunately (for me)a large, slow airplane would probably also b= e >>>> 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. >>>> >>> >>> >> >> >> >> Virus-free. >> www.avast.com >> >> <#m_-4736227910950089643_m_-1215955522687399604_m_3799815658121394753_DA= B4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> >> > --001a113b006c4d115105579d6818 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Todd,
=C2=A0 =C2=A0Will be very interested in the clim= b and speed changes that the high pitch blades give you..........Even thoug= h I have gone
to the dark side for now (Lycoming) in the hope of = getting my project in the air in this life time I still hope to use a Rotar= y at
some point.........I have a "IVO" with (74"x3= 0x90) blades and electric hub.........The flat area of the blades next to t= he hubs
has been blamed for blocking the cooling air and increasi= ng drag which was holding top speed down.........I ventured an=C2=A0
<= div>opinion several years ago that covering the flat area with a larger spi= nner might negate much of this drag..........I suggested
that a 1= 6 inch "Mustang Two" spinner would cover most of this flat area o= f the "IVO" hub.........=C2=A0

Kelly Tro= yer

On Fri, = Aug 25, 2017 at 9:34 AM, Todd Bartrim <flyrotary@lancaironline.n= et> wrote:
=C2=A0=C2=A0 Apparently IVO won't even sell them to you if you have a = Lyc. When I first contacted them, the first thing they asked was what engin= e I have. I expected the usual bewilderment about the rotary but they were = quite approving and commented on the smoothness of it.
=C2=A0=C2=A0 As Charlie mentioned the blades can be configured with 2 or 3 = blades but spacer blocks are required to use for 2 blades. I carry these 2 = blocks with me in the plane as incase of a minor prop strike leaving one da= maged blade but otherwise ok, it could be reconfigured and then flown home = for further repairs. At least that's what IVO said when he sold me the = blocks. But they were cheap enough and don't weigh much.
=C2=A0 =C2=A0Most negative reviews about the IVO on faster aircraf= t never seem to mention whether it was with the standard or deep pitch blad= es and the few enquiries I've made went unanswered, so I suspect that t= hey were the standard. I've read one good review that was with the deep= pitch that sounded overly optimistic.=C2=A0
=C2=A0 = =C2=A0But I'm so optimistic myself about the performance of these deep = pitch blades that I bet $1050usd on it (That's a whole lot more Canadia= n =C2=A0$$$).
=C2=A0 =C2=A0 But really I can't co= mplain much as a good friend has often mentioned, he spent $10k on a CS pro= p to bolt onto the IO540 that he spent $45k getting rebuilt and he hasn'= ;t flown it in a year because he can't solve the cylinder cooling issue= s (in a BD4).
=C2=A0 =C2=A0He endorses my choice for = a rotary as he did all the initial flight testing with me while teaching me= to fly.

On Fri, Aug 25, 2017= , 05:51 Charlie England, <flyrotary@lancaironline.net> wrote:
One of the (few) advantages of = the IVO is that you can use it in 2 blade or 3 blade configuration in the s= ame hub. If Max wants to try one, he could buy just a hub from IVO & ge= t Todd's blades.

Charlie
(Been there, done= that (on a Lyc); got the lousy cruise speed T shirt. BTW, never, ever, con= sider one for a Lyc, on *any* airframe.)
<= br>

On Fri, Aug 25= , 2017 at 7:10 AM, Ed Anderson <flyrotary@lancaironline.net&= gt; wrote:
Hi Todd,
=C2=A0
I understand, actually his airframe is a bit more draggy than an RV.= =C2=A0=20 However, having said that, Max informed me he had talked to IVO and they=20 suggested the try converting his IVO to a two bladed version, they indicate= d to=20 him that would interfere less with airflow into his cooling inlets.
=C2=A0
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.=C2=A0= =20
=C2=A0
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
=C2=A0
Thanks for you candor, Todd =E2=80=93 always refreshing
=C2=A0
Ed
=C2=A0
Sent: Friday, August 25, 2017 3:25 AM
To: Rotary motors in aircraft <= /div>
Subject: [FlyRotary] Re: Old IVO Prop blades for=20 sale
=C2=A0
Hi Ed;=C2=A0=20
=C2=A0=C2=A0 I actually wasn't thinking that these would be very i= deal 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 th= e=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 spe= ed I ever=20 recall seeing in level flight was 170mph.
=C2=A0=C2=A0 The blades are easy to cut down, and I should have done i= t, 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 ful= l=20 length it would be easier to find a new home for them.
=C2=A0=C2=A0 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 a= nd he=20 will still have to by a hub as well. And it should be the electric hub to g= et=20 the most performance out of these blades. The electric CS governor is a nic= e=20 addition too.
=C2=A0=C2=A0 If I seem like I'm trying to avoid perspective custom= ers, I=20 just want to be honest about it. I originally bought it used (almost new, n= ever=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 wou= ld 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.
=C2=A0
Todd=C2=A0=C2=A0 -=C2=A0 could never sell used cars!
=C2=A0
Todd Bartrim
=C2=A0
On Thu, Aug 24, 2017 at 11:00 AM, Ed Anderson <flyrotary@lancaironline.net> wrote:
Thanks, Todd
=C2=A0
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.
=C2=A0
Ed
=C2=A0
From: Todd Bartrim=20
Sent: Thursday, August 24, 2017 1:34 PM
Subject: [FlyRotary] Old IVO Prop blades for=20 sale
=C2=A0
=

3D"" Virus-free. www.avast.com




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