flyrotary@lancaironline.net Mailing List Archive

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/ > >>>> > >>>> > >>>> -- > >>>> Homepage: http://www.flyrotary.com/ > >>>> Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ > >>> > >>> > >>> -- > >>> Homepage: http://www.flyrotary.com/ > >>> Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ > >>> > >> > >> > >> > >> -- > >> Homepage: http://www.flyrotary.com/ > >> Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ > >> > >> > >> -- > >> No virus found in this incoming message. > >> Checked by AVG Free Edition. > >> Version: 7.1.405 / Virus Database: 268.11.7/436 - Release Date: > >> 9/1/2006 > >> > >> > > > > > > -- > > Homepage: http://www.flyrotary.com/ > > Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ > > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ > > > -- > No virus found in this incoming message. > Checked by AVG Free Edition. > Version: 7.1.405 / Virus Database: 268.11.7/436 - Release Date: 9/1/2006 >