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First Start of my rotary

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CBarber(at)TexasAttorney.
Guest

Posted: Wed May 30, 2007 7:40 pm Post subject: First Start of my rotary

Just a quick note to announce the first starts of  my 13b rotary engine in my Velocity SE wired with Bob's Z-14 diagrams.   Thanks for the great info in the book and on this list.  It provides a  great deal of piece of mind.  If you are interested in more details check  out my posts or those of my buddy David Staten who is helping me in the  build, on www.canardaviation.com or the flyrotary  email list.  Thanks Bob.

  

 All the best,

  

 Chris

 www.LoneStarVelocity.com

 Houston, Texas

   [quote][b]

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nuckollsr(at)cox.net
Guest

Posted: Thu May 31, 2007 8:55 am Post subject: First Start of my rotary

At 10:40 PM 5/30/2007 -0500, you wrote:



 	  Quote: 	
		  Just a quick note to announce the first starts of my 13b rotary engine in 

my Velocity SE wired with Bob's Z-14 diagrams.  Thanks for the great info 

in the book and on this list.  It provides a great deal of piece of 

mind.  If you are interested in more details check out my posts or those 

of my buddy David Staten who is helping me in the build, on 

<http://www.canardaviation.com>www.canardaviation.com or the flyrotary 

email list.  Thanks Bob.



All the best,


	


    Great news! There's always a note of well earned satisfaction

    at every project's milestones. We're putting the finishing

    touches on a remodeling of three rooms and a hall in our house.

    Long hours of prep, a few hours of broad-roller-progress and

    many square-feet-per-hour of flooring going down . . . then

    more long hours of detailed finish work for the bits and pieces

    at the edges. But when the paint was done, and all the flat stuff

    down on the floor, the light at the end of the tunnel turned out

    not to be an oncoming train. All I have left is a dozen or so

    pieces of base-board to put down.



    Getting the engine to run and show nice numbers on the gages

    has to be a rush. I'm pleased that this important milestone

    is now behind you. Keep us apprised of your progress!



    Bob . . .



        ----------------------------------------

        ( "Physics is like sex: sure, it may   )

        ( give some practical results, but     )

        ( that's not why we do it."            )

        (                                      )

        (                 Richard P. Feynman   )

        ----------------------------------------

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longg(at)pjm.com
Guest

Posted: Wed Jun 06, 2007 12:16 pm Post subject: First Start of my rotary

Congratulations Chris,

     A freshly minted non-smoking wiring system and a smooth  running rotary are proud milestones. 

 [quote]   

   --

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frank.hinde(at)hp.com
Guest

Posted: Wed Jun 06, 2007 1:00 pm Post subject: First Start of my rotary

Indeed, although the web page is a little out of date as  Experimental Lyclones are now way cheaper than the 34K listed...More like 21 to  24k for a brand new fuel injected IO360.

  

 The rotary is a fascinating conversion however (not good  for a tractor airplane due to the difficulty in getting long ducts to deal with  the cooling drag, but much more amenable to a pusher design I  think.

  

 Good job

  

 Frank



   From:  owner-aeroelectric-list-server(at)matronics.com  [mailto:owner-aeroelectric-list-server(at)matronics.com] On Behalf Of  longg(at)pjm.com

Sent: Wednesday, June 06, 2007 1:15 PM

To:  aeroelectric-list(at)matronics.com

Subject: RE: First  Start of my rotary

 

 Congratulations Chris,

     A freshly minted non-smoking wiring system and a smooth  running rotary are proud milestones. 

 [quote]   

   --

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bob(at)bob-white.com
Guest

Posted: Wed Jun 06, 2007 2:46 pm Post subject: First Start of my rotary

Hi Frank,



Better not tell all those guys flying RV's with rotary engines.



Bob W.



On Wed, 6 Jun 2007 20:58:14 -0000

"Hinde, Frank George (Corvallis)" <frank.hinde(at)hp.com> wrote:



[quote] Indeed, although the web page is a little out of date as Experimental

 Lyclones are now way cheaper than the 34K listed...More like 21 to 24k

 for a brand new fuel injected IO360.

  

 The rotary is a fascinating conversion however (not good for a tractor

 airplane due to the difficulty in getting long ducts to deal with the

 cooling drag, but much more amenable to a pusher design I think.

  

 Good job

  

 Frank

 

 ________________________________

 

 From: owner-aeroelectric-list-server(at)matronics.com

 [mailto:owner-aeroelectric-list-server(at)matronics.com] On Behalf Of

 longg(at)pjm.com

 Sent: Wednesday, June 06, 2007 1:15 PM

 To: aeroelectric-list(at)matronics.com

 Subject: RE: First Start of my rotary

 

 

 Congratulations Chris,

     A freshly minted non-smoking wiring system and a smooth running

 rotary are proud milestones. 

 

 	--

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frank.hinde(at)hp.com
Guest

Posted: Thu Jun 07, 2007 8:23 am Post subject: First Start of my rotary

Didn't say they don't work but the debate over how fast they go VS. how

much fuel burn has never been proven to my knowledge...I.e water cooled

engines have an inherrent disadvantage in that they have more drag to

overcome. That can be done with careful ducting but it's a hard thing to

do with the engine so close to the front.



Has it been done on an RV?..I dunno,...Does it matter?...I.e if it costs

1 gallon per hour more in a Rotary coversion but the conversion is half

price compared to a Lyc it may still be a good deal. 



Frank



Do not archive



--

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echristley(at)nc.rr.com
Guest

Posted: Thu Jun 07, 2007 10:07 am Post subject: First Start of my rotary

Hinde, Frank George (Corvallis) wrote:

 	  Quote: 	
		   



 Didn't say they don't work but the debate over how fast they go VS. how

 much fuel burn has never been proven to my knowledge...I.e water cooled

 engines have an inherrent disadvantage in that they have more drag to

 overcome. That can be done with careful ducting but it's a hard thing to

 do with the engine so close to the front.



   

Water cooled engines have an inherent advantage in that they don't have 
	


to have the radiator up front just because that is where the engine is. 



Here's a picture of my oil cooler arrangement.  The radiator is on the 

other side.  Tractor configuration.  Picture is from the front of the 

airplane.  The black triangle up front is part of the firewall. 



http://www.ernest.isa-geek.org/Delta/Pictures/OilCoolerDuctFront.jpg



Advantages:  Better weight and balance configuration.  NACA studies 

indicate that my inlet and outlet placement will provide the least drag 

of any cooling arrangement except for jets or rockets. 



The fuel burn question will never be answered, IMHO,  regardless of how 

much data you provide showing the rotary gobbles gas if you try to fly 

it like a Lycoming, but the difference falls into the noise when you fly 

it like a rotary.  The BSFC goes through the roof when the mixture is 

configured for best power (the only regime anyone seems to care about on 

a dyno), but stays quite reasonable when properly leaned for a power 

regime that keeps the plane under Vne.  To complicated for most, I 

guess.  I give up.  The doubters win.  I'll just tell people that I have 

secret tanks concealed with a cloaking device and levitated with my 

anti-gravity pixie-dust so that the fuel it contains doesn't add to the 

airplane's gross weight.  The extra fuel is delivered at night by 

secret-ops Federal Marshalls under the direct supervision of the CEO of 

Exxon, because I know of some dirty secrets on Dick Cheney's 

good-ol'-boy network.  That should be a much more convincing story of 

why all the rotary powered aircraft seem to have the same range as their 

Lycoming powered brethren.



To bring this back on topic for this discussion list, the rotary has 

another advantage in that the output shaft is turning at 6000RPM or so 

at cruise.  Just about right for a direct-drive generator.  With a PM 

rotor mounted directly to the shaft, there's no need for belts or 

gears.  No weight needed for a heavy case or robust and heavy mounting 

brackets.  In a tractor configuration, it will be constantly impacted by 

fresh cooling air.

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