Mailing List flyrotary@lancaironline.net Message #21364
From: Paul <sqpilot@bellsouth.net>
Subject: Re: [FlyRotary] Re: Rotary Canard - was home again
Date: Wed, 4 May 2005 07:47:56 -0500
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Hi, Steve and thanks for the reply.  I am running what I believe to be the simplest and most bullet-proof exhaust going. I am using the stock cast iron manifold, (which does a great job of absorbing engine pulses), with a short 8 inch long exhaust pipe. Total weight is 12 pounds.  See attached pics. Everyone at the flying field tells me that it is no louder than the Lycomings....just a "different" sound some say.  Hope this helps.  Paul Conner

----- Original Message ----- From: "Steve Brooks" <prvt_pilot@yahoo.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Wednesday, May 04, 2005 6:22 AM
Subject: [FlyRotary] Re: Rotary Canard - was home again


Hi Paul,
I'm running a 72" 3 blade Ivo Magnum (ground
adjustable), which isn't known for it top end speed,
but since I didn't know what ptch I needed, it seemed
to a really good place to start.

Yesterday, I retorqued the prop, and changed the ptch
adding about 2.5 degrees more pitch, so that was what
led to the 4400 cruise at a MAP of about 22.  I was
showing a speed of 130 kts indicated, which seemed to
match the GPS when you average the winds.

The highest I've pushed it so far was 150 kts, and
that was for a short time.  I don't have wheel pants
on yet, and I'm trying to me kind to my turbo, so it
doesn't pack up.

I'm going to retorque the prop again this morning, and
change the pitch back to where it was.  actually I'm
going to reduce it about a 1/2 degree from where it
was originally.  Before the change a 22 MAP was
yeilding about 4900 RPM's with a take off RPM of about
5500 at 5lbs of boost on the turbo.  I think that is
probably closer to what I want to run at, rather than
where it is right now.

I'm curious about what kind of muffler you are
running.  You've probably said, but I don't remember.
I'm thinking about getting rid of the turbo later on,
and looking for info now.  Also any photos of your
exhaust setup would be helpful.

Steve
--- sqpilot@bellsouth.net wrote:

Hi, Steve....glad to hear you are flying/enjoying
your rotary powered
canard.  I found that a cruise rpm of 4400 rpm's
makes for a very quiet
cabin.  What size prop are you using and what is
your IAS at 4400 rpm's?
Thanks for the info.   Paul Conner, also enjoying
cruising around at 4400
rpm's in Mobile, AL

----- Original Message ----- From: "Steve Brooks" <prvt_pilot@yahoo.com>
To: "Rotary motors in aircraft"
<flyrotary@lancaironline.net>
Sent: Tuesday, May 03, 2005 7:56 PM
Subject: [FlyRotary] Re: Home again, home again!


> Ed,
> I don't beleive that I'm going to make the flyin.
> Flying has gone exceptionally well this week.  I
have
> flown over 4 hours in the last two days, and I
plan on
> getting in at least 2 more hours tomorrow, before
> heading back to the Raleigh area.
>
> I am very happy with the way that the rotary is
> perfoming now. Temps are good, and it is very
smooth
> accross the power range.  Most of my cruising
around
> has been at low cruise.  About 4400 RPMs and
proabably
> about 55%=60% power.  Trying to conserve both fuel
and
> turbo.
>
> I'm also considering removing the turbo, as I see
it
> as the weakest link.  I have most of what I need
to
> convert to a T04 turbo, but wondering if I
shouldn't
> just go to N/A.  Still kicking it around, but
probably
> won't do anything untill I get the 40 hours flown
off.
> Just over 20 hours so far, but going strong,
> especially if I can get to over 6 hours in three
days.
> It has been pretty bumpy up there, especially this
> afternoon.
>
> Steve
> --- Ed Anderson <eanderson@carolina.rr.com> wrote:
>
>> Thanks, Steve
>>
>>  Great to have my aircraft back in its hangar
with
>> thunderstorm season
>> beginning.
>>
>> Going out today to enlarge the 10 sq inch inlet
left
>> duct opening to around
>> 18 sq inches
>> Are you going to the Mid-Atlantic Flyin?  Sounds
>> like you are getting your
>> time burnt off - bit by bit.
>>
>> Ed
>> ----- Original Message ----- >> From: "Steve Brooks" <prvt_pilot@yahoo.com>
>> To: "Rotary motors in aircraft"
>> <flyrotary@lancaironline.net>
>> Sent: Tuesday, May 03, 2005 7:44 AM
>> Subject: [FlyRotary] Re: Home again, home again!
>>
>>
>> > Ed,
>> > Congratulations on the successful rebuild and
safe
>> > flight back to home base.
>> >
>> > I've been off email for the last couple of
days,
>> so
>> > I'm trying to catch up.
>> >
>> > I made a trip to SC, first in about a month and
a
>> > half.  Had a good day yesterday with three
>> flights,
>> > but only 1 1/2 hours total.  It was pretty
bumpy.
>> > Engine is running very good, and no problems.
>> >
>> > Hoping to get in at least 3 hours today.
>> >
>> > Steve Brooks (fuel it and fly it)
>> >
>> >
>> > --- Ed Anderson <eanderson@carolina.rr.com>
wrote:
>> >> Wife, drove me and my flight gear to aircraft
>> >> getting there around 1100.  By time finished
>> >> loading, reinstalling the avionics - the @$#%^
>> >> transponder wouldn't slide all the way back in
an
>> >> engage the pins it was 1130 and the wind was
>> picking
>> >> up.  - I figured I'd stay low enough and out
of
>> >> class B airspace anyway.
>> >>
>> >> I told her that she could pick me up back at
the
>> >> home airport in NC if I didn't have any
problem -
>> >> she said I wouldn't have any problem.
Curious, I
>> >> asked how did she know I wouldn't have any
>> problem -
>> >> "Headwind" she said.  Women, got to love em.
>> >>
>> >> Cranked up the engine and let oil and coolant
>> temp
>> >> rise to 120F and taxied to runup at end or
>> runway.
>> >> Everything looking good, I restricted takeoff
rpm
>> to
>> >> 5400 (6000 ft long runway), still accelerated
>> >> rapidly and lifted off.  Kept it low until
>> hitting
>> >> 140 mph hoping to maintain good cooling.
>> However,
>> >> coolant temp rose to 220F during the circuits
of
>> the
>> >> airport as I slowly climbed.  I pulled the
power
>> >> back to 4500 rpm and the temps stabilized at
>> 210F.
>> >> Oil temp was around 185F.  Normally coolant is
in
>> >> syn with the oil or perhaps 5F higher.  After
>> flying
>> >> for approx 20 minutes coolant temps were at
200F,
>> so
>> >> slowly coming down.
>> >>
>> >> This is pretty much what Tracy reported when
>> first
>> >> flying with the Renesis engine - tight engine,
>> more
>> >> power, more heat.  So it appears that this
engine
>> is
>> >> much tighter.  I can now maintain level flight
>> >> burning 4 gph when it used to take 5.5 gph.
>> Can't
>> >> wait until its broken in a bit more to see
what
>> the
>> >> top end is.  Overhaul kit from Real World
>> Solutions
>> >> and parts from Bruce T appear to have come
>> together
>> >> in a tight nit engine.
>> >>
>> >> But, it does appear the  small cooling inlets
>> (which
>> >> I had planned to open up a bit) are too small
for
>> >> the new HP being produced (are you listening,
AL
>> >> {:>)?. Also, several people mentioned after I
>> >> arrived back at GooseCreek that the exhaust
was
>> >> deeper and louder.  Even my wife mentioned it
no
>> >> longer had that "whinny" sound.
>> >>
>> >> So thanks for all the well wishes from
everyone,
>> >> advice, and engineering consultation on the
>> cause.
>> >> I have mailed seals to Tracy and Bob
Perkinson,
>> so
>> >> that should provide some "harder" data on the
>> status
>> >> of the seals.
>> >>
>> >>
>> >> Ed Anderson
>> >> Rv-6A N494BW Rotary Powered

=== message truncated ===


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