Buly,
My engine mount is not like any and is tapered to meet the narrow fuselge of
a Long EZ.  I probably should of did the oil pan plate sandwitch thing. So
.065" thick is the ticket.  Do they make slip joints for that type of tube?

Joe Berki
Limo EZ

----- Original Message ----- From: "Bulent Aliev" <atlasyts@bellsouth.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Wednesday, September 06, 2006 10:27 PM
Subject: [FlyRotary] Re: Departed Exhaust

Joe, why are you rebuilding your engine mount? The pipes that cracked
up were 0.049" thick and welded solid. Next ones I will make from 2"
and 0.065 material with slip joints. Cast manifold from NA engine and
than single pipe crossed my mind too, but the sucker is very heavy.
Again, you have engine mount like mine. Why are you modifying it?
Bulent "Buly" Aliev
FXE Ft lauderdale, FL
http://tinyurl.com/s5xw8


On Sep 6, 2006, at 9:48 PM, Joe Berki wrote:

> Buly,
> I am glad that you are safe.  What dimensions on the exhaust pipes
> need to
> be changed?  I am wondering ir the cast iron exhaust might solve
> some of
> thes issues.  Unfortuntly I will need to modify or build a nes
> engne mount.
>
> Joe Berki
> Limo EZ
> Canard in primer
>
> ----- Original Message -----
> From: "Ed Anderson" <eanderson@carolina.rr.com>
> To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
> Sent: Wednesday, September 06, 2006 7:57 AM
> Subject: [FlyRotary] Departed Exhaust
>
>
>> Hi Buly, great to hear about your flight and happy to hear the
>> missing
>> exhaust component did not cause damage - however, I would inspect
>> the prop
>> blade very closely to make certain no small cracks in blade -
>> particularly
>> near the hub.
>>
>>  Yes, I have pulverized sufficient metal by trying different exhaust
>> internals to say that the shock of the exhaust pulse particular
>> with a
> turbo
>> block is tremendous.  I have destroyed 1/8" thick stainless steel
>> in a
>> matter of hours.  It appears that if a exhaust component is
>> perpendicular
> to
>> the front of the shock wave, the impact on the component is such
>> to reduce
>> its life to almost nil.  If the component is at an angle then its
>> life is
>> much longer.  The constant flexing of the metal at 200 times/sec
>> at 6000
> rpm
>> caused by the strong exhaust pulse fatigues the metal extremely
>> rapidly.
>>
>>  The joke around my airport is "You can hear Ed long before you
>> can see
>> him!"  - my response is that its a safety feature to let others
>> know I am
> on
>> my way inbound{:>).
>>
>> Ed
>> Ed Anderson
>> Rv-6A N494BW Rotary Powered
>> Matthews, NC
>> eanderson@carolina.rr.com
>> http://members.cox.net/rogersda/rotary/configs.htm#N494BW
>> ----- Original Message -----
>> From: "Bulent Aliev" <atlasyts@bellsouth.net>
>> To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
>> Sent: Wednesday, September 06, 2006 7:17 AM
>> Subject: [FlyRotary] Re: OT: Gardenhose as level
>>
>>
>>> Joe, it was a "shake down" alright with an exhaust problem like
>>> yours.
>>> on Sat we did some takeoffs and landings with the CFI Ron
>>> Miller.  With
>>> gross weight of 1850 pounds, on takeoff I'm getting 6500-7000
>>> rpm and
>>> climb rate of about 1000 fpm. Than we went to 1500 ft over  the
>>> airport
>>> and i did some steep turns etc for about 40 min. It flies  like a
>>> dream
>>> (compared to C-172 :). Transponder did not work again.
>>> Next day we got a waiver for the transponder and headed to an old
>>> uncontrolled military field with two huge 5000 ft runways, so i can
>>> practice landings and takeoffs. So we took off and headed for our
>>> destination at 3500 ft over alligator country. Pulled back the
>>> power  to
>>> 5000 rpm and we were cruising at 140 knots. Nothing spectacular,
>>> but i
>>> kept the prop at low pitch to go easy on the engine. 15 min
>>> later, we
>>> heard a bang and the plane felt like we run over a rock.  First
>>> reaction
>>> look for a place to land. But soon everything checked  out and the
> engine
>>> kept running normal with temps at 185-187F degrees  with OAT at 85F.
>>> Landed OK at our destination and taxied to the FBO.  Ron got out
>>> first
> and
>>> started looking, but can not find anything  wrong? I got out and
>>> noticed
> a
>>> slight scuff like a drag mark 3" wide  on one of the Ivo blades
>>> starting
>>> about where the exhaust would be  and going to the tip. The las oval
> piece
>>> of my shiny new exhaust was  missing. Mystery solved. Ivo is a
>>> one tough
>>> prop to survive a 3" long  3" diam. SS pipe going hitting the
>>> blade.  We
>>> continued with the  training and I was getting good at it but
>>> with lots
> of
>>> full power  takeoffs and not enough time for the engine to cool
>>> down,
> some
>>> of the  coolant boiled out on takeoff and we came down to replace
>>> to add
>>> more  coolant and check under the hood. Added some water, cleaned
>>> the
>>> plugs, just in case and took off again.
>>> By now it was a sweltering heat with jungle like humidity and
>>> after  few
>>> landings, we headed home. The trip was uneventful, the engine was
> running
>>> fine around 5000 rpm. The biggest surprise later was after I
>>> removed
> the
>>> SS heat shields from around my new exhaust pipes. one  pipe was
>>> totaly
>>> separated at the weld, another was half cracked.
>>> Sound familiar Joe:) The exhaust pulses must be ferocious? people on
> the
>>> ground said they can hear me long before they can see me coming:)
>>> More later. Got to go to work.
>>> Bulent "Buly" Aliev
>>> FXE Ft lauderdale, FL
>>> http://tinyurl.com/s5xw8
>>>
>>> On Sep 5, 2006, at 11:47 PM, Joe Hull wrote:
>>>
>>>> OK - it's supposed to be "Shake down cruise" - don't tell me
>>>> you  broke
>>>> down
>>>> somewhere!!
>>>>
>>>> But congrats on flying it anyway!!
>>>>
>>>> Joe Hull
>>>> Cozy Mk-IV N31CZ (65 hrs - Rotary 13B NA)
>>>> Redmond (Seattle), Washington
>>>>
>>>>
>>>>> -----Original Message-----
>>>>> From: Rotary motors in aircraft
>>>>> [mailto:flyrotary@lancaironline.net]
> On
>>>>> Behalf Of Bulent Aliev
>>>>> Sent: Tuesday, September 05, 2006 8:20 PM
>>>>> To: Rotary motors in aircraft
>>>>> Subject: [FlyRotary] Re: OT: Gardenhose as level
>>>>>
>>>>>
>>>>>>
>>>>>> Guess I need to buy some expensive clear hose .....
>>>>>> Finn
>>>>>
>>>>> Finn, if you buy the right size, one day you can used for your
>>>>> fuel
>>>>> lines on the next airplane. Worked very well on the first one :)
>>>>> Buly
>>>>> Finally checked out in my plane.
>>>>> Did my first 100 mile "cross country". Or should I say "break down
>>>>> cruise" :),
>>>>>
>>>>> --
>>>>> Homepage:  http://www.flyrotary.com/
>>>>> Archive and UnSub:   http://mail.lancaironline.net/lists/
>>>>> flyrotary/
>>>>
>>>>
>>>> --
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>>>
>>>
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>>
>>
>>
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>
>
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