Today's Message Index:
----------------------
1. 12:12 AM - Highlight Two (Matt Dralle)
2. 11:42 AM - Anyone know about a running single rotor wankel? (coenvanwyk@lantic.net)
3. 12:15 PM - Re: Anyone know about a running single rotor wankel? (Charlie England)
4. 12:17 PM - Re: Anyone know about a running single rotor (Scott Bilinski)
5. 01:31 PM - Re: Anyone know about a running single rotor wankel? (Hans Teijgeler)
6. 01:46 PM - Re: Anyone know about a running single rotor wankel? (Ed Anderson)
7. 01:51 PM - Re: Anyone know about a running single rotor wankel? (Ed Anderson)
8. 01:52 PM - Re: Anyone know about a running single rotor wankel? (sgettings@cfl.rr.com)
9. 06:05 PM - Re: Anyone know about a running single rotor wankel? ()
10. 06:49 PM - Re: Anyone know about a running single rotor wankel? ()
11. 07:20 PM - Re: Anyone know about a running single rotor wankel? (Ed Anderson)
Message 1
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--> Engines-List message posted by: Matt Dralle <dralle@matronics.com>
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Message 2
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| Subject: | Anyone know about a running single rotor wankel? |
Bounce-To: coenvanwyk@lantic.net <coenvanwyk@lantic.net>
--> Engines-List message posted by: "coenvanwyk@lantic.net" <coenvanwyk@lantic.net>
Dear list members,
Can anyone tell me if they know of a single rotor Mazda Wankel? I have a
need for about 100 horse power, at less than 200 pounds. I know there
are a number of options beween an O200 and a Rotax 912, but none at less
than $ 5000, at least not in my neck of the woods.
The Wankel looks ideal, modular, not too expensive (Atkins has a single
rotor e-shaft for $ 500, a PSRU seems relatively easy). So why are we
not knee deep in them? I know it will be more expensive to engineer than
a two rotor conversion, but what is the catch? Yaw power bilt one, I saw
it on the net.
Is it a vibration problem?
I would appreciate if anyone on the list can share their experience with
me,
Coen van Wyk
Message 3
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| Subject: | Re: Anyone know about a running single rotor wankel? |
--> Engines-List message posted by: Charlie England <ceengland@bellsouth.net>
coenvanwyk@lantic.net wrote:
>--> Engines-List message posted by: "coenvanwyk@lantic.net" <coenvanwyk@lantic.net>
>
>Dear list members,
>
>Can anyone tell me if they know of a single rotor Mazda Wankel? I have a
>need for about 100 horse power, at less than 200 pounds. I know there
>are a number of options beween an O200 and a Rotax 912, but none at less
>than $ 5000, at least not in my neck of the woods.
>
>The Wankel looks ideal, modular, not too expensive (Atkins has a single
>rotor e-shaft for $ 500, a PSRU seems relatively easy). So why are we
>not knee deep in them? I know it will be more expensive to engineer than
>a two rotor conversion, but what is the catch? Yaw power bilt one, I saw
>it on the net.
>
>Is it a vibration problem?
>
>I would appreciate if anyone on the list can share their experience with
>me,
>
>Coen van Wyk
>
The best source for rotary info (especially single rotor) is the
flyrotary list.
Homepage: http://www.flyrotary.com/
Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/
Ask for input from Rusty Duffy (mounting a more or less 'stock' cut down 13B on
a Kolb, won't hit your weight target) & Richard Sohn (developing one with aluminum
end housings that will hit your weight target).
Tons of additional resources within that group.
Charlie
flying Lyc RV-4
Building RV-7 (potentially rotary powered)
Message 4
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| Subject: | Re: Anyone know about a running single rotor |
wankel?
--> Engines-List message posted by: Scott Bilinski <bilinski@kyocera-wireless.com>
wankel?
To keep it short, yes the engine is light, but you need a large oil cooler
(30% of the heat rejected through the oil cooler!) and radiator, they are
also very noisy. The exhaust pulses are very harsh and will trash a
standard muffler in a few days. The exhaust pipe coming out of the engine
needs to be .125 thick steel due to the EGT temps around 1600 F which is
normal. So, heavy exhaust, large radiator with coolant, and oil cooler
equals an additional 35 lbs or so, maybe more? Then there is the cooling
issues in a plane there never seems to be enough room. Contact this guy to
hear a success story.
http://www.rotaryaviation.com/
At 07:41 PM 11/16/2005 +0000, you wrote:
>--> Engines-List message posted by: "coenvanwyk@lantic.net"
><coenvanwyk@lantic.net>
>
>Dear list members,
>
>Can anyone tell me if they know of a single rotor Mazda Wankel? I have a
>need for about 100 horse power, at less than 200 pounds. I know there
>are a number of options beween an O200 and a Rotax 912, but none at less
>than $ 5000, at least not in my neck of the woods.
>
>The Wankel looks ideal, modular, not too expensive (Atkins has a single
>rotor e-shaft for $ 500, a PSRU seems relatively easy). So why are we
>not knee deep in them? I know it will be more expensive to engineer than
>a two rotor conversion, but what is the catch? Yaw power bilt one, I saw
>it on the net.
>
>Is it a vibration problem?
>
>I would appreciate if anyone on the list can share their experience with
>me,
>
>Coen van Wyk
>
>
Scott Bilinski
Eng dept 305
Phone (858) 657-2536
Pager (858) 502-5190
Message 5
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| Subject: | Anyone know about a running single rotor wankel? |
--> Engines-List message posted by: "Hans Teijgeler" <hans@jodel.com>
Coen,
How about a Subaru EA-81? 185lbs dry weight, including starter, redrive,
alternator (my own measurements on a Stratus EA-81). An easy 100 hp with the
right cams and carbs, much more experience around, as well as good parts
availability.
Where are you located? Going by your name, I wouldn't be surprised if you
were Dutch. In that case, by all means, visit Prekas at Lelystad airport
(www.prekas.nl). They've got loads of experience with the EA-81 and are
running a few on a near daily basis.
Hans
> -----Original Message-----
> From: owner-engines-list-server@matronics.com [mailto:owner-engines-list-
> server@matronics.com] On Behalf Of coenvanwyk@lantic.net
> Sent: woensdag 16 november 2005 20:41
> To: engines-list@matronics.com
> Subject: Engines-List: Anyone know about a running single rotor wankel?
>
> --> Engines-List message posted by: "coenvanwyk@lantic.net"
> <coenvanwyk@lantic.net>
>
> Dear list members,
>
> Can anyone tell me if they know of a single rotor Mazda Wankel? I have a
> need for about 100 horse power, at less than 200 pounds. I know there
> are a number of options beween an O200 and a Rotax 912, but none at less
> than $ 5000, at least not in my neck of the woods.
>
> The Wankel looks ideal, modular, not too expensive (Atkins has a single
> rotor e-shaft for $ 500, a PSRU seems relatively easy). So why are we
> not knee deep in them? I know it will be more expensive to engineer than
> a two rotor conversion, but what is the catch? Yaw power bilt one, I saw
> it on the net.
>
> Is it a vibration problem?
>
> I would appreciate if anyone on the list can share their experience with
> me,
>
> Coen van Wyk
>
>
>
>
>
Message 6
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| Subject: | Re: Anyone know about a running single rotor wankel? |
--> Engines-List message posted by: "Ed Anderson" <eanderson@carolina.rr.com>
I have flow a two rotor wankel since 1998 in my RV-6A. They make an
excellent aircraft engine - but do require a lot of work to configure and
install as their are not currently any FWF conversions for aircraft . The
good news is most of the pieces are available for aircraft conversion.
Here is an excellent source of information on products for the rotary engine
in aircraft and the products are tested by the developer and his rotary
powered RV-4 which has hit over 215MPH. He has over 1600 hours of flying a
rotary.
Tracy Crook's Web page of information and products (great place to
start)
web page: http://www.rotaryaviation.com
email: tcook@rotaryaviation.com
You can find a used two rotor engine and rebuild it and have less than
$2000 invested (maybe as little as $1000) doing it yourself. But, you would
also need agear reduction drive to reduce the engine speed for the prop.
Depends on what you use/make - but that can add another $1500-$3000. Any
time you go for the one rotor version ( of which a couple of guys are
working with) you save some weight but probably add to the cost as they all
have to be made. Since they are liquid cooled you will also need radiators
and oil cooler along with a fuel and lubrication system.
Join the fly rotary list and several folks on it are working with the one
rotary - can get better information from those actually doing it. An
informed decision is good for all.
FlyRotary Group (Sign on for e mail list at their web page)
web page: http://www.flyrotary.com/
e mail: flyrotary@lancaironline.net
Ed Anderson
RV-6A N494BW
Matthews, NC
eanderson@carolina.rr.com
----- Original Message -----
From: <coenvanwyk@lantic.net>
Subject: Engines-List: Anyone know about a running single rotor wankel?
> --> Engines-List message posted by: "coenvanwyk@lantic.net"
> <coenvanwyk@lantic.net>
>
> Dear list members,
>
> Can anyone tell me if they know of a single rotor Mazda Wankel? I have a
> need for about 100 horse power, at less than 200 pounds. I know there
> are a number of options beween an O200 and a Rotax 912, but none at less
> than $ 5000, at least not in my neck of the woods.
>
> The Wankel looks ideal, modular, not too expensive (Atkins has a single
> rotor e-shaft for $ 500, a PSRU seems relatively easy). So why are we
> not knee deep in them? I know it will be more expensive to engineer than
> a two rotor conversion, but what is the catch? Yaw power bilt one, I saw
> it on the net.
>
> Is it a vibration problem?
>
> I would appreciate if anyone on the list can share their experience with
> me,
>
> Coen van Wyk
>
>
>
Message 7
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| Subject: | Re: Anyone know about a running single rotor wankel? |
--> Engines-List message posted by: "Ed Anderson" <eanderson@carolina.rr.com>
Good point, Hans
If I were needing an engine of around 100-120 HP the Subaru would be on the
top of my list. Given the current lack of any source for one rotors (at
this time), a Subaru would have to be given top consideration.
Ed Anderson
Rv-6A N494BW Rotary Powered
Matthews, NC
eanderson@carolina.rr.com
----- Original Message -----
From: "Hans Teijgeler" <hans@jodel.com>
Subject: RE: Engines-List: Anyone know about a running single rotor wankel?
> --> Engines-List message posted by: "Hans Teijgeler" <hans@jodel.com>
>
> Coen,
>
> How about a Subaru EA-81? 185lbs dry weight, including starter, redrive,
> alternator (my own measurements on a Stratus EA-81). An easy 100 hp with
> the
> right cams and carbs, much more experience around, as well as good parts
> availability.
>
> Where are you located? Going by your name, I wouldn't be surprised if you
> were Dutch. In that case, by all means, visit Prekas at Lelystad airport
> (www.prekas.nl). They've got loads of experience with the EA-81 and are
> running a few on a near daily basis.
>
> Hans
>
>> -----Original Message-----
>> From: owner-engines-list-server@matronics.com [mailto:owner-engines-list-
>> server@matronics.com] On Behalf Of coenvanwyk@lantic.net
>> Sent: woensdag 16 november 2005 20:41
>> To: engines-list@matronics.com
>> Subject: Engines-List: Anyone know about a running single rotor wankel?
>>
>> --> Engines-List message posted by: "coenvanwyk@lantic.net"
>> <coenvanwyk@lantic.net>
>>
>> Dear list members,
>>
>> Can anyone tell me if they know of a single rotor Mazda Wankel? I have a
>> need for about 100 horse power, at less than 200 pounds. I know there
>> are a number of options beween an O200 and a Rotax 912, but none at less
>> than $ 5000, at least not in my neck of the woods.
>>
>> The Wankel looks ideal, modular, not too expensive (Atkins has a single
>> rotor e-shaft for $ 500, a PSRU seems relatively easy). So why are we
>> not knee deep in them? I know it will be more expensive to engineer than
>> a two rotor conversion, but what is the catch? Yaw power bilt one, I saw
>> it on the net.
>>
>> Is it a vibration problem?
>>
>> I would appreciate if anyone on the list can share their experience with
>> me,
>>
>> Coen van Wyk
>>
>>
>>
>>
>>
>
>
>
Message 8
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| Subject: | Re: Anyone know about a running single rotor wankel? |
--> Engines-List message posted by: sgettings@cfl.rr.com
----- Original Message -----
From: "coenvanwyk@lantic.net" <coenvanwyk@lantic.net>
Subject: Engines-List: Anyone know about a running
single rotor wankel?
> --> Engines-List message posted by:
"coenvanwyk@lantic.net"
> <coenvanwyk@lantic.net>
> Dear list members,
>
> Can anyone tell me if they know of a single rotor
Mazda Wankel? I
> have a
> need for about 100 horse power, at less than 200
pounds. I know there
> are a number of options beween an O200 and a Rotax
912, but none at
> lessthan $ 5000, at least not in my neck of the woods.
>
> The Wankel looks ideal, modular, not too expensive
(Atkins has a
> singlerotor e-shaft for $ 500, a PSRU seems
relatively easy). So
> why are we
> not knee deep in them? I know it will be more
expensive to engineer
> thana two rotor conversion, but what is the catch?
Yaw power bilt
> one, I saw
> it on the net.
>
> Is it a vibration problem?
>
> I would appreciate if anyone on the list can share
their experience
> withme,
>
> Coen van Wyk
>
>
Also try:
http://www.rotaryeng.net/
Scott Gettings
Glass Goose / Renesis
Message 9
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| Subject: | Re: Anyone know about a running single rotor wankel? |
--> Engines-List message posted by: <momanpop@marshallnet.com>
I have a 0-200 for sale for $3500. It was running as I understand when removed
from a Cessna. I have the log books and last 100 hr check all was ok. The compression
was good and no shavings on the magnetic plug. That is all I know about
it.
Thanks
Bob Tichy
----- Original Message -----
From: sgettings@cfl.rr.com
Subject: Re: Engines-List: Anyone know about a running single rotor wankel?
--> Engines-List message posted by: sgettings@cfl.rr.com
----- Original Message -----
From: "coenvanwyk@lantic.net" <coenvanwyk@lantic.net>
Subject: Engines-List: Anyone know about a running
single rotor wankel?
> --> Engines-List message posted by:
"coenvanwyk@lantic.net"
> <coenvanwyk@lantic.net>
> Dear list members,
>
> Can anyone tell me if they know of a single rotor
Mazda Wankel? I
> have a
> need for about 100 horse power, at less than 200
pounds. I know there
> are a number of options beween an O200 and a Rotax
912, but none at
> lessthan $ 5000, at least not in my neck of the woods.
>
> The Wankel looks ideal, modular, not too expensive
(Atkins has a
> singlerotor e-shaft for $ 500, a PSRU seems
relatively easy). So
> why are we
> not knee deep in them? I know it will be more
expensive to engineer
> thana two rotor conversion, but what is the catch?
Yaw power bilt
> one, I saw
> it on the net.
>
> Is it a vibration problem?
>
> I would appreciate if anyone on the list can share
their experience
> withme,
>
> Coen van Wyk
>
>
Also try:
http://www.rotaryeng.net/
Scott Gettings
Glass Goose / Renesis
Message 10
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| Subject: | Re: Anyone know about a running single rotor wankel? |
--> Engines-List message posted by: <harvey.rule@sympatico.ca>
> I was talking to one of the lads at our last RAA meeting and I asked him about
a single rotor wankle and he said it's not a good idea because there is a lot
of vibration with it.He was very criticle of it.
> From: "coenvanwyk@lantic.net" <coenvanwyk@lantic.net>
> Date: 2005/11/16 Wed PM 02:41:09 EST
> To: engines-list@matronics.com
> Subject: Engines-List: Anyone know about a running single rotor wankel?
>
>
Message 11
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| Subject: | Re: Anyone know about a running single rotor wankel? |
--> Engines-List message posted by: "Ed Anderson" <eanderson@carolina.rr.com>
The one rotor wankel, like just about any revolving assembly, can be
balanced. All it takes is the right amount of balancing mass located in
the correct position relative to the rotating mass. In reality, since the
rotor is already rotating rather than a piston yanking a bent crankshaft
back and forth, a rotor is technically easier to balance than most rotating
assemblies. It is true (like with any unbalanced assembly) that an
unbalanced rotor can certainly have horrid vibrations - but, then so would
any unbalanced rotating assembly. There are always pros and cons to an
approach but I wouldn't consider vibration to be a major factor, certain
other factors would carry more weight in any decision I would make regarding
use of a one rotor.
Ed Anderson
----- Original Message -----
From: <harvey.rule@sympatico.ca>
Subject: Re: Engines-List: Anyone know about a running single rotor wankel?
> --> Engines-List message posted by: <harvey.rule@sympatico.ca>
>
>
>> I was talking to one of the lads at our last RAA meeting and I asked him
>> about a single rotor wankle and he said it's not a good idea because
>> there is a lot of vibration with it.He was very criticle of it.
>> From: "coenvanwyk@lantic.net" <coenvanwyk@lantic.net>
>> Date: 2005/11/16 Wed PM 02:41:09 EST
>> To: engines-list@matronics.com
>> Subject: Engines-List: Anyone know about a running single rotor wankel?
>>
>>
>
>
>
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