Wow Ed, you really need to get out more!  Of course, with current fuel
prices I can't say that I blame you for sitting home playing on the
computer.  I was just trying to get a feel for what to expect for
engine life on my 20B.

Mark



On Nov 22, 2007 7:29 AM, Ed Anderson <eanderson@carolina.rr.com> wrote:

Lets see, Mark,  that rebuilt was in 05 down in Louisiana.  I fly around 50
hours a year so, I've probably put around 100 hours on the rebuilt engine.

Ed
----- Original Message -----
From: "Mark Steitle" <msteitle@gmail.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Thursday, November 22, 2007 9:04 AM
Subject: [FlyRotary] Re: Fw: [Bulk] 16x


> Ed,
> How many flight hours does your engine have on it since last rebuild?
>
> Mark
>
> On Nov 22, 2007 5:45 AM, Ed Anderson <eanderson@carolina.rr.com> wrote:
>> Thanks, George, that in indeed interesting information.  Long throw
>> should
>> mean more torque.  Be interesting to see how they have improved the
>> sealing.
>> Two years more development then all the production (assuming they go
>> forward
>> with it), so I should expect to see it for at least 5 years.  Well,
>> hopefully the old 13B will hold out for that long.
>>
>> Ed
>>
>> ----- Original Message -----
>> From: "George Lendich" <lendich@optusnet.com.au>
>> To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
>> Sent: Thursday, November 22, 2007 1:51 AM
>> Subject: [FlyRotary] Fw: [Bulk] 16x
>>
>>
>> >
>> >
>> >> Ed, Lynn and Bill +
>> >>
>> >> This was posted to me privately and may help to clarify the
>> >> specifications of the 16x. Some of the info are estimations by Rolf
>> >> Pfeiffer ex - NSU engineer.
>> >>
>> >>> Hello George
>> >>> Nice to hear from you. Here is my assessment:
>> >>
>> >> Also info supplied by Don Sherman as follows:-
>> >>
>> >> I interviewed Seiji Tashima, the engineering expert for Mazda's new
>> >> rotary, at Tokyo on your behalf. Here are a few details he >> >> revealed:
>> >> Rotor width reduced by 5mm saves weight, improves apex seal
>> >> performance
>> >> trochoid is 25mm wider, 35mm taller for more displacement and >> >> torque
>> >> would not reveal increase in eccentricity. New displacement is
>> >> 800cc/rotor.
>> >>
>> >> Aluminum end plates have plasma-sprayed wear surface direct and
>> >> indirect
>> >> fuel injection.
>> >>
>> >> Torque gains come from longer e-dimension, more displacement, and
>> >> direct
>> >> injection.
>> >>
>> >> He would not confirm 300 hp power goal.
>> >> All the gas seals are improved,  with smaller flame holes adjacent >> >> to
>> >> spark plugs.
>> >> The 16x engine ran for the first time this year, full development >> >> will
>> >> be
>> >> at least 2 more years.
>> >>
>> >> Engine weight is reduced from 125kg [275 pounds] to 100 kg [220
>> >> pounds].
>> >>
>> >> Assessment by Rolf Pfeiffer as follows:-
>> >>
>> >>> /Now, using above dimensions we get the following:
>> >>>
>> >>> 25 mm wider means the short axis goes from 180 to 205 mm.
>> >>> 35 mm taller means the long axis goes from 240 to 275 mm.
>> >>>
>> >>> This results in E = 17.5 mm, and R = 120 mm.
>> >>> The old dimensions were E = 15 mm and R = 105 (including the >> >>> radius
>> >>> of 3
>> >>> mm for the apex seals).
>> >>> The ratio R/E is 6.857, down from 7.0.
>> >>>
>> >>> The ratio of stroke to piston area becomes higher which is what >> >>> they
>> >>> want, I suppose.
>> >>> The RX7/8's were 0.33 S/D, above numbers would be 0.3764, a
>> >>> substantial
>> >>> 14% improvement in ratio of stroke to equivalent piston diameter. >> >>> A
>> >>> long
>> >>> stroke engine, so to speak.
>> >>>
>> >>> I also had stated that:
>> >>> NSU also went that direction with their latest developments before
>> >>> folding.
>> >>> We are lucky that Mazda has the financial means and does carry on.
>> >>>
>> >>> The last big NSU unit EA 871 was approximately like this:
>> >>> (Calculating
>> >>> back from its displacement and width. I had already left by then, >> >>> so
>> >>> the
>> >>> info is calculated.)
>> >>> E = 17.28, R = 120.5, width = 69 (given), displacement = 746.6 cc
>> >>> (given).
>> >>> This is very close to what Mazda seems to be doing now, if above
>> >>> numbers
>> >>> are right.
>> >>> NSU had great hopes in that engine. It was used in a German
>> >>> fan-liner.
>> >>> It was the high point of the Wankel development at NSU.
>> >>> Then the money did run out. NSU was merged with AUDI, and VW the
>> >>> parent,
>> >>> killed it all. All further development was stopped.
>> >>>
>> >>> Fan Trainer:
>> >>> http://www.der-wankelmotor.de/Flugzeuge/RFB/rfb.html#Fanliner
>> >>>
>> >>> Regards
>> >>> Rolf
>> >>>
>> >>>
>> >>> George Lendich wrote:
>> >>>> Rolf,
>> >>>> Could you give me your assessment of the new 16X eccentric. If I
>> >>>> remember correctly you gave you assessment on Paul's site. There >> >>>> is
>> >>>> discussion on another site and I would like to pass it on to
>> >>>> interested
>> >>>> parties.
>> >>>> Also if my memory serves me right, you mentioned a manufacturer >> >>>> was
>> >>>> working on a similar size ( change in eccentric) and what company
>> >>>> that
>> >>>> was.
>> >>>> Am I wrong to believe it was the company you were working with at
>> >>>> the
>> >>>> time?
>> >>>> George Lendich
>> >>
>> >
>> >
>> > --
>> > Homepage:  http://www.flyrotary.com/
>> > Archive and UnSub:
>> > http://mail.lancaironline.net:81/lists/flyrotary/List.html
>> >
>>
>>
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>
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