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I dont think Sam James makes a rotary cowl for the
RV-4. He does for the 6 and 8.
I'm thinking after I've flown for a while and
really know how the cooling system performs in all weather conditions I may be
able to resize the inlets a little, maybe rearrange the ducting a little, and
reshape the cowl a little to blend in the exhaust clearance bumps I had to add.
Once that's done I'll think about a new cowl with that new shape. One of the
other issues with the current cowl is its gained a fair amount of weight with
all of the mods. A new cowl would weigh half what the current one
does.
Mike Wills
RV-4 N144MW
----- Original Message -----
Sent: Tuesday, August 11, 2009 6:23
AM
Subject: [Norton AntiSpam] [FlyRotary]
Re: Mike Wills RV4/13B
Mike,
In all honesty, I
thought your engine was purple (light) until you just declared it pink.
And I don’t have any colorblindness issues.
Are you thinking of
going with a James rotary cowl?
Bryan
From:
Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net] On
Behalf Of Mike Wills
Sent: Monday, August 10, 2009 11:49
PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Mike Wills
RV4/13B
My planned paint scheme has always
been to use white, green, and purple - the colors of an old Jet Ski. When
Bruce T asked what color I wanted the engine powder coated I told him purple.
He said he had 2 shades, "light purple" and "dark purple". Hard to make much
sense of that over the phone from 3000 miles away so I chose "light purple"
based on his description. The engine came to me the color you see - basically
raspberry pink. I called him and asked what happened to purple. After some
discussion he mentioned that he had a bit of a color blindness issue so asked
for some help from his daughter. Who at the time was 6 years old. I dont know
if thats all true or if thats what he told me to end the conversation, but it
makes a good story (my wife loves to tell it). So I chose to keep the engine
"pink".
Oh, as with the cowl, the
engine install is photogenic - the engine (and the cowl) look better in
pictures than they do in person. But thanks for the compliment. Now if I can
just get back to flying. Latest hang-up, while I wasnt paying attention I
found out my medical expired last month. Hope to resolve that this week and
try to fly this weekend. 37.5 hours to go.
----- Original Message -----
Sent: Sunday,
August 09, 2009 9:32 PM
Subject: [Norton
AntiSpam] [FlyRotary] Re: Mike Wills
RV4/13B
Thanks, Kelly.
Mike has a really clean looking installation.
Is that fuschia?? :>)
Bill B
From:
Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net] On
Behalf Of Kelly Troyer
Sent: Sunday, August 09, 2009 8:33
PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Mike Wills
RV4/13B
And here is Mike's intake and exhaust
side from my files.............
--
Kelly Troyer
"Dyke Delta"_13B
ROTARY Engine
"RWS"_RD1C/EC2/EM2
"Mistral"_Backplate/Oil Manifold
--------------
Original message from "Mike Wills" <rv-4mike@cox.net>:
--------------
Thanks very much for the
compliment. It sounds like you are on the right track with copying
Tracy's
RV8 setup. The RV4 doesnt have the width for that sort of
arrangement.
I'm not sure what pics
you saw. My cowl has gone through multiple revisions since it was built
originally. The major changes were to accomodate the final oil cooler
install and tweaks to gain a little exhaust clearance. In spite of
multiple tries I finally gave up trying to contain the oil cooler within
the original cowl line and just added another scoop on the bottom. As
a result the cowl has gained some weight and some ugliness. There may be a
new cowl in my future.
I cant remember inlet and
outlet sizes. Its been a few years. Attached are pictures of the
current setup, cowled and uncowled so you can see the
ducting.
Yes, I was having intermittent
issues with lost data in the EC2. I finally figured out how to make the
problem occur with at least some predictability. After finding the
incorrectly seated chip in the EC2 and reseating it I have not had a
reoccurance of the problem in several hours of ground
testing.
----- Original Message -----
Sent: Saturday, August 08,
2009 9:53 AM
Subject: [FlyRotary] Re:
T-shirt design
> Hi Mike,
> I went
back thru your posts and found a couple of pics of your "homemade"
>
cowl...WOW! What an excellent job! I really like the elimination of
the
> "Chipmunk with his cheeks full of nuts" look that the RV4
has..(Sorry guys
> :>) )
> I didn't find any pics of the
innerds of your install...Do you have any?
> What is the size of
your inlet? Outlet? I suppose the top section is for
>
induction?
>
> I also noticed that you had problems similar
to Chris with the EC-2 getting
> scrambled.
>
> Bill
B
>
> -----Original Message-----
> From:
Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net] On
> Behalf Of Mike
Wills
> Sent: Saturday, August 08, 2009 11:57 AM
> To:
Rotary motors in
aircraft
> Subject: [FlyRotary] Re: T-shirt
design
>
> On the other hand, if it takes this much input to
build a T shirt, its
> amazing that anyone here has managed to build
and fly anything. I hope we
> can stop talking about T shirts
soon.
>
> Sorry to say Bill that I dont know what your
cooling system looks like so
> cant answer that question. Cooling
was something I worried a lot about
> because when I started my
install it seems that everyone had cooling
> problems. To date I've
had zero problems with cooling (admittedly with
> limited flight
time to date but I hope to change that soon). My system has
>
generous inlets and outlets ( I think many people tend to undersize
these
> thinking that liquid cooling is more efficient so the holes
dont need to be
> as big). My thinking was its easier to start with
a hole thats too big and
> shrink it later than to enlarge something
thats too small. I also used a
> radiator with quite a lot of
surface area compared with its thickness.
> Easier to get air
to go through. Finally, with an RV and the big fan in the
> front,
my inlet gets plenty of prop blast right below the prop. Not sure
>
what type of airframe you have, but I admire the guys who have
successful
> cooling systems on pushers. I think trying to make a
P51 style belly scoop
> work is just looking for cooling problems,
just my opinion. I havent yet
> heard of a belly scoop on a puller
auto conversion that actually worked.
>
> On the EC2, I have
some recent experience there. In my opinion the EC2
> installation
is a challenging proposition for someone without some
> experience
with electronics. I've worked as an electronics tech for 35 years
>
and still had some problems. In hindsight it appears that my problems
were
> caused by a not fully seated socketted chip rather than an
installation
> issue. Having said that, I did make some tweaks to my
installation in trying
> to resolve my problems, which I believe
improved the system. It is clear
> that the EC2 works if installed
correctly, but pay close attention to proper
> installation
techniques. The installation instructions and the recent
> comments
on the forum in regards to proper installation arent suggestions,
>
they are mandatory if you want the EC2 to work.
>
> Mike
Wills
> RV-4 N144MW
>
> ----- Original Message
-----
> From: "Bill Bradburry" <bbradburry@bellsouth.net>
> To:
"Rotary motors in aircraft"
<flyrotary@lancaironline.net>
> Sent: Saturday,
August 08, 2009 6:41 AM
> Subject: [FlyRotary] Re: T-shirt
design
>
>
>> If there had been this much response
for any of the questions we have had
>> about how to get a rotary
to fly we would have complete FWF packages (with
>> drawings) for
every type of plane we are trying to fly!!!
>>
>> This
country doesn't need a health care plan (especially not the one
they
>> are ramming down our throats), it needs a
T-Shirt!
>>
>> What is wrong with making a T shirt out
of Tracy's
button?? Oh, Er, that
>> is
>> right, we are not
flying...or building...we are designing a shirt!!
>>
>>
Anybody got any ideas why my install will not
cool?
>>
>> It seems that there is something
fundamentally gremlin about the
>> electrical
>>
problems Chris B has been having with his EC-2...What is up with
that??
>>
>> Bill B
>>
>>
>>
--
>> Homepage: http://www.flyrotary.com/
>> Archive and UnSub:
>> http://mail.lancaironline.net:81/lists/flyrotary/List.html
>>
>
>
>
> --
> Homepage: http://www.flyrotary.com/
>
Archive and UnSub:
> http://mail.lancaironline.net:81/lists/flyrotary/List.html
>
>
> --
> Homepage: http://www.flyrotary.com/
>
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>
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