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From: jrmjoseph@videotron.ca
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Message-id: <f465a1501bb15.47d40493@videotron.ca>
Date: Sun, 09 Mar 2008 15:38:59 +0000 (GMT)
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Subject: Re : [FlyRotary] Re: Anyone have an RD-1C for sale?
Priority: normal
In-reply-to: <list-2784127@logan.com>
References: <list-2784127@logan.com>

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Yes a two rotor direct drive with hp between 80 and 120=2E  For a CH701 =
or another stol aircraft=2E  This is the engine I=27m looking for=2E  I =
know of one person (cant remember his name) who built one using a 12A=2E=


Marc J=2E

----- Message d=27origine -----
De=3A Tracy Crook =3Ctracy=40rotaryaviation=2Ecom=3E
Date=3A Dimanche=2C Mars 9=2C 2008 11=3A30 am
Objet=3A =5BFlyRotary=5D Re=3A Anyone have an RD-1C for sale=3F
=C0=3A Rotary motors in aircraft =3Cflyrotary=40lancaironline=2Enet=3E

=3E Damn Rusty=2C I=27d give anything for your organizational skills and=
 =

=3E work habits
=3E but darned if I can figure out your masochistic (sp=3F) =

=3E tendencies on this
=3E plane =3A=3E) One Rotor=3F=3F=3F=3F
=3E =

=3E Sure=2C that can work but why not something completely =

=3E different=3F I want
=3E to see someone do a direct drive 2 rotor (maybe even turboed) in =

=3E the right
=3E application and the RV-3 comes close=2E That would be Kool!
=3E =

=3E I know=2C everyone has their own idea of what=27s cool=2E Kick ass o=
n =

=3E whateveryou decide to do Rusty=2E
=3E =

=3E Tracy (making carbon fiber parts)
=3E =

=3E =

=3E =

=3E On Sun=2C Mar 9=2C 2008 at 1=3A04 AM=2C Russell Duffy =

=3E wrote=3A
=3E =

=3E =3E Good one mate=2C I knew you couldn=27t let it go=2E
=3E =3E
=3E =3E Hi George=2C
=3E =3E
=3E =3E Well that certainly IS the problem=2E I was all set to bolt a =

=3E Lycoming=3E on the RV-3=2C but I realize that what I need is a =

=3E project=2C not a plane=2E
=3E =3E Since there=27s no doubt a single will work for an RV-3=2C there=
=27s =

=3E really no
=3E =3E reason not to do it=2E
=3E =3E
=3E =3E While it may seem wishy washy to go back to the RD-1C=2C the =

=3E damper on the
=3E =3E Autoflight drive didn=27t magically fix the resonance problem=2C=
 =

=3E and the RV-3
=3E =3E has changed the power requirements=2E For previous aircraft=2C I=
 =

=3E was only
=3E =3E planning to have about 80 HP=2C and that would fall within the =

=3E 6000 rpm limit
=3E =3E of the Autoflight drive=2E Now that I can use as much power as =

=3E I can make=2C I
=3E =3E need more RPM=2E
=3E =3E
=3E =3E The offset thrust line of the Autoflight drive would have =

=3E worked well for
=3E =3E the previous aircraft I was considering=2C but not so well for =

=3E the RV cowl=2E
=3E =3E The mount plate on Tracy=27s drive is also really handy for moun=
ting
=3E =3E coolers for the RV cowl inlets=2E
=3E =3E
=3E =3E The Autoflight drive is about 12 lbs lighter IIRC=2C but I have =

=3E the opposite
=3E =3E problem with weight now=2E A single made from stock housings is =
way
=3E =3E overweight compared to 912S=2C but compared to an O-200 or O-
=3E 235=2C it=27s just
=3E =3E fine=2E Using stock housings will just limit you to aircraft =

=3E that were
=3E =3E designed for 100-125 HP LyConts=2E
=3E =3E
=3E =3E Finally=2C I really like the carbon fiber ground adjustable prop=
 that
=3E =3E Sensenich makes=2C and the RD-1C rotates the proper direction to=
 =

=3E use it=2E
=3E =3E
=3E =3E I should probably be more concerned with building the plane =

=3E for now=2C but I
=3E =3E can=27t help but think of engine stuff=2E I=27ve got a partial =

=3E mount on order
=3E =3E from the guys who make Van=27s mounts=2E I don=27t know if I=27l=
l try =

=3E to make a
=3E =3E beam style mount=2C or use a sandwich plate similar to the old =

=3E CCI mount=2E
=3E =3E Either way=2C I=27ll size it to fit either the single rotor=2C o=
r a =

=3E two rotor as a
=3E =3E fall back plan=2E
=3E =3E
=3E =3E Enough babbling for now=2E
=3E =3E
=3E =3E Rusty (watching the salt magically melt snow)
=3E =3E
=3E =3E
=3E =3E
=3E =3E
=3E 

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=3CDIV=3EYes a two rotor direct drive with hp between 80 and 120=2E=26nb=
sp=3B For a CH701 or another stol aircraft=2E=26nbsp=3B This is the engi=
ne I=27m looking for=2E=26nbsp=3B I know of one person (cant remember hi=
s name) who built one using a 12A=2E=3C/DIV=3E
=3CDIV=3E=26nbsp=3B=3C/DIV=3E
=3CDIV=3EMarc J=2E=3CBR=3E=3CBR=3E----- Message d=27origine -----=3CBR=3E=
De=3A Tracy Crook =26lt=3Btracy=40rotaryaviation=2Ecom=26gt=3B=3CBR=3EDa=
te=3A Dimanche=2C Mars 9=2C 2008 11=3A30 am=3CBR=3EObjet=3A =5BFlyRotary=
=5D Re=3A Anyone have an RD-1C for sale=3F=3CBR=3E=C0=3A Rotary motors i=
n aircraft =26lt=3Bflyrotary=40lancaironline=2Enet=26gt=3B=3CBR=3E=3CBR=3E=
=26gt=3B Damn Rusty=2C I=27d give anything for your organizational skill=
s and =3CBR=3E=26gt=3B work habits=3CBR=3E=26gt=3B but darned if I can f=
igure out your masochistic (sp=3F) =3CBR=3E=26gt=3B tendencies on this=3C=
BR=3E=26gt=3B plane =3A=26gt=3B) One Rotor=3F=3F=3F=3F=3CBR=3E=26gt=3B =3C=
BR=3E=26gt=3B Sure=2C that can work but why not something completely =3C=
BR=3E=26gt=3B different=3F I want=3CBR=3E=26gt=3B to see someone do a di=
rect drive 2 rotor (maybe even turboed) in =3CBR=3E=26gt=3B the right=3C=
BR=3E=26gt=3B application and the RV-3 comes close=2E That would be Kool=
!=3CBR=3E=26gt=3B =3CBR=3E=26gt=3B I know=2C everyone has their own idea=
 of what=27s cool=2E Kick ass on =3CBR=3E=26gt=3B whateveryou decide to =
do Rusty=2E=3CBR=3E=26gt=3B =3CBR=3E=26gt=3B Tracy (making carbon fiber =
parts)=3CBR=3E=26gt=3B =3CBR=3E=26gt=3B =3CBR=3E=26gt=3B =3CBR=3E=26gt=3B=
 On Sun=2C Mar 9=2C 2008 at 1=3A04 AM=2C Russell Duffy =3CBR=3E=26gt=3B =
=3CRUSTY=40RADROTARY=2ECOM=3Ewrote=3A=3CBR=3E=26gt=3B =3CBR=3E=26gt=3B =26=
gt=3B Good one mate=2C I knew you couldn=27t let it go=2E=3CBR=3E=26gt=3B=
 =26gt=3B=3CBR=3E=26gt=3B =26gt=3B Hi George=2C=3CBR=3E=26gt=3B =26gt=3B=
=3CBR=3E=26gt=3B =26gt=3B Well that certainly IS the problem=2E I was al=
l set to bolt a =3CBR=3E=26gt=3B Lycoming=26gt=3B on the RV-3=2C but I r=
ealize that what I need is a =3CBR=3E=26gt=3B project=2C not a plane=2E=3C=
BR=3E=26gt=3B =26gt=3B Since there=27s no doubt a single will work for a=
n RV-3=2C there=27s =3CBR=3E=26gt=3B really no=3CBR=3E=26gt=3B =26gt=3B =
reason not to do it=2E=3CBR=3E=26gt=3B =26gt=3B=3CBR=3E=26gt=3B =26gt=3B=
 While it may seem wishy washy to go back to the RD-1C=2C the =3CBR=3E=26=
gt=3B damper on the=3CBR=3E=26gt=3B =26gt=3B Autoflight drive didn=27t m=
agically fix the resonance problem=2C =3CBR=3E=26gt=3B and the RV-3=3CBR=
=3E=26gt=3B =26gt=3B has changed the power requirements=2E For previous =
aircraft=2C I =3CBR=3E=26gt=3B was only=3CBR=3E=26gt=3B =26gt=3B plannin=
g to have about 80 HP=2C and that would fall within the =3CBR=3E=26gt=3B=
 6000 rpm limit=3CBR=3E=26gt=3B =26gt=3B of the Autoflight drive=2E Now =
that I can use as much power as =3CBR=3E=26gt=3B I can make=2C I=3CBR=3E=
=26gt=3B =26gt=3B need more RPM=2E=3CBR=3E=26gt=3B =26gt=3B=3CBR=3E=26gt=
=3B =26gt=3B The offset thrust line of the Autoflight drive would have =3C=
BR=3E=26gt=3B worked well for=3CBR=3E=26gt=3B =26gt=3B the previous airc=
raft I was considering=2C but not so well for =3CBR=3E=26gt=3B the RV co=
wl=2E=3CBR=3E=26gt=3B =26gt=3B The mount plate on Tracy=27s drive is als=
o really handy for mounting=3CBR=3E=26gt=3B =26gt=3B coolers for the RV =
cowl inlets=2E=3CBR=3E=26gt=3B =26gt=3B=3CBR=3E=26gt=3B =26gt=3B The Aut=
oflight drive is about 12 lbs lighter IIRC=2C but I have =3CBR=3E=26gt=3B=
 the opposite=3CBR=3E=26gt=3B =26gt=3B problem with weight now=2E A sing=
le made from stock housings is way=3CBR=3E=26gt=3B =26gt=3B overweight c=
ompared to 912S=2C but compared to an O-200 or O-=3CBR=3E=26gt=3B 235=2C=
 it=27s just=3CBR=3E=26gt=3B =26gt=3B fine=2E Using stock housings will =
just limit you to aircraft =3CBR=3E=26gt=3B that were=3CBR=3E=26gt=3B =26=
gt=3B designed for 100-125 HP LyConts=2E=3CBR=3E=26gt=3B =26gt=3B=3CBR=3E=
=26gt=3B =26gt=3B Finally=2C I really like the carbon fiber ground adjus=
table prop that=3CBR=3E=26gt=3B =26gt=3B Sensenich makes=2C and the RD-1=
C rotates the proper direction to =3CBR=3E=26gt=3B use it=2E=3CBR=3E=26g=
t=3B =26gt=3B=3CBR=3E=26gt=3B =26gt=3B I should probably be more concern=
ed with building the plane =3CBR=3E=26gt=3B for now=2C but I=3CBR=3E=26g=
t=3B =26gt=3B can=27t help but think of engine stuff=2E I=27ve got a par=
tial =3CBR=3E=26gt=3B mount on order=3CBR=3E=26gt=3B =26gt=3B from the g=
uys who make Van=27s mounts=2E I don=27t know if I=27ll try =3CBR=3E=26g=
t=3B to make a=3CBR=3E=26gt=3B =26gt=3B beam style mount=2C or use a san=
dwich plate similar to the old =3CBR=3E=26gt=3B CCI mount=2E=3CBR=3E=26g=
t=3B =26gt=3B Either way=2C I=27ll size it to fit either the single roto=
r=2C or a =3CBR=3E=26gt=3B two rotor as a=3CBR=3E=26gt=3B =26gt=3B fall =
back plan=2E=3CBR=3E=26gt=3B =26gt=3B=3CBR=3E=26gt=3B =26gt=3B Enough ba=
bbling for now=2E=3CBR=3E=26gt=3B =26gt=3B=3CBR=3E=26gt=3B =26gt=3B Rust=
y (watching the salt magically melt snow)=3CBR=3E=26gt=3B =26gt=3B=3CBR=3E=
=26gt=3B =26gt=3B=3CBR=3E=26gt=3B =26gt=3B=3CBR=3E=26gt=3B =26gt=3B=3CBR=
=3E=26gt=3B =3C/DIV=3E

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