flyrotary@lancaironline.net Mailing List Archive

Paul, Thanks for the photos. You're right, its pretty simple. I'm surprised that it's not louder. Steve -----Original Message----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]On Behalf Of Paul Sent: Wednesday, May 04, 2005 8:48 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Rotary Canard - was home again Hi, Steve and thanks for the reply. I am running what I believe to be the simplest and most bullet-proof exhaust going. I am using the stock cast iron manifold, (which does a great job of absorbing engine pulses), with a short 8 inch long exhaust pipe. Total weight is 12 pounds. See attached pics. Everyone at the flying field tells me that it is no louder than the Lycomings....just a "different" sound some say. Hope this helps. Paul Conner ----- Original Message ----- From: "Steve Brooks" <prvt_pilot@yahoo.com> To: "Rotary motors in aircraft" <flyrotary@lancaironline.net> Sent: Wednesday, May 04, 2005 6:22 AM Subject: [FlyRotary] Re: Rotary Canard - was home again > Hi Paul, > I'm running a 72" 3 blade Ivo Magnum (ground > adjustable), which isn't known for it top end speed, > but since I didn't know what ptch I needed, it seemed > to a really good place to start. > > Yesterday, I retorqued the prop, and changed the ptch > adding about 2.5 degrees more pitch, so that was what > led to the 4400 cruise at a MAP of about 22. I was > showing a speed of 130 kts indicated, which seemed to > match the GPS when you average the winds. > > The highest I've pushed it so far was 150 kts, and > that was for a short time. I don't have wheel pants > on yet, and I'm trying to me kind to my turbo, so it > doesn't pack up. > > I'm going to retorque the prop again this morning, and > change the pitch back to where it was. actually I'm > going to reduce it about a 1/2 degree from where it > was originally. Before the change a 22 MAP was > yeilding about 4900 RPM's with a take off RPM of about > 5500 at 5lbs of boost on the turbo. I think that is > probably closer to what I want to run at, rather than > where it is right now. > > I'm curious about what kind of muffler you are > running. You've probably said, but I don't remember. > I'm thinking about getting rid of the turbo later on, > and looking for info now. Also any photos of your > exhaust setup would be helpful. > > Steve > --- sqpilot@bellsouth.net wrote: > >> Hi, Steve....glad to hear you are flying/enjoying >> your rotary powered >> canard. I found that a cruise rpm of 4400 rpm's >> makes for a very quiet >> cabin. What size prop are you using and what is >> your IAS at 4400 rpm's? >> Thanks for the info. Paul Conner, also enjoying >> cruising around at 4400 >> rpm's in Mobile, AL >> >> ----- Original Message ----- >> From: "Steve Brooks" <prvt_pilot@yahoo.com> >> To: "Rotary motors in aircraft" >> <flyrotary@lancaironline.net> >> Sent: Tuesday, May 03, 2005 7:56 PM >> Subject: [FlyRotary] Re: Home again, home again! >> >> >> > Ed, >> > I don't beleive that I'm going to make the flyin. >> > Flying has gone exceptionally well this week. I >> have >> > flown over 4 hours in the last two days, and I >> plan on >> > getting in at least 2 more hours tomorrow, before >> > heading back to the Raleigh area. >> > >> > I am very happy with the way that the rotary is >> > perfoming now. Temps are good, and it is very >> smooth >> > accross the power range. Most of my cruising >> around >> > has been at low cruise. About 4400 RPMs and >> proabably >> > about 55%=60% power. Trying to conserve both fuel >> and >> > turbo. >> > >> > I'm also considering removing the turbo, as I see >> it >> > as the weakest link. I have most of what I need >> to >> > convert to a T04 turbo, but wondering if I >> shouldn't >> > just go to N/A. Still kicking it around, but >> probably >> > won't do anything untill I get the 40 hours flown >> off. >> > Just over 20 hours so far, but going strong, >> > especially if I can get to over 6 hours in three >> days. >> > It has been pretty bumpy up there, especially this >> > afternoon. >> > >> > Steve >> > --- Ed Anderson <eanderson@carolina.rr.com> wrote: >> > >> >> Thanks, Steve >> >> >> >> Great to have my aircraft back in its hangar >> with >> >> thunderstorm season >> >> beginning. >> >> >> >> Going out today to enlarge the 10 sq inch inlet >> left >> >> duct opening to around >> >> 18 sq inches >> >> Are you going to the Mid-Atlantic Flyin? Sounds >> >> like you are getting your >> >> time burnt off - bit by bit. >> >> >> >> Ed >> >> ----- Original Message ----- >> >> From: "Steve Brooks" <prvt_pilot@yahoo.com> >> >> To: "Rotary motors in aircraft" >> >> <flyrotary@lancaironline.net> >> >> Sent: Tuesday, May 03, 2005 7:44 AM >> >> Subject: [FlyRotary] Re: Home again, home again! >> >> >> >> >> >> > Ed, >> >> > Congratulations on the successful rebuild and >> safe >> >> > flight back to home base. >> >> > >> >> > I've been off email for the last couple of >> days, >> >> so >> >> > I'm trying to catch up. >> >> > >> >> > I made a trip to SC, first in about a month and >> a >> >> > half. Had a good day yesterday with three >> >> flights, >> >> > but only 1 1/2 hours total. It was pretty >> bumpy. >> >> > Engine is running very good, and no problems. >> >> > >> >> > Hoping to get in at least 3 hours today. >> >> > >> >> > Steve Brooks (fuel it and fly it) >> >> > >> >> > >> >> > --- Ed Anderson <eanderson@carolina.rr.com> >> wrote: >> >> >> Wife, drove me and my flight gear to aircraft >> >> >> getting there around 1100. By time finished >> >> >> loading, reinstalling the avionics - the @$#%^ >> >> >> transponder wouldn't slide all the way back in >> an >> >> >> engage the pins it was 1130 and the wind was >> >> picking >> >> >> up. - I figured I'd stay low enough and out >> of >> >> >> class B airspace anyway. >> >> >> >> >> >> I told her that she could pick me up back at >> the >> >> >> home airport in NC if I didn't have any >> problem - >> >> >> she said I wouldn't have any problem. >> Curious, I >> >> >> asked how did she know I wouldn't have any >> >> problem - >> >> >> "Headwind" she said. Women, got to love em. >> >> >> >> >> >> Cranked up the engine and let oil and coolant >> >> temp >> >> >> rise to 120F and taxied to runup at end or >> >> runway. >> >> >> Everything looking good, I restricted takeoff >> rpm >> >> to >> >> >> 5400 (6000 ft long runway), still accelerated >> >> >> rapidly and lifted off. Kept it low until >> >> hitting >> >> >> 140 mph hoping to maintain good cooling. >> >> However, >> >> >> coolant temp rose to 220F during the circuits >> of >> >> the >> >> >> airport as I slowly climbed. I pulled the >> power >> >> >> back to 4500 rpm and the temps stabilized at >> >> 210F. >> >> >> Oil temp was around 185F. Normally coolant is >> in >> >> >> syn with the oil or perhaps 5F higher. After >> >> flying >> >> >> for approx 20 minutes coolant temps were at >> 200F, >> >> so >> >> >> slowly coming down. >> >> >> >> >> >> This is pretty much what Tracy reported when >> >> first >> >> >> flying with the Renesis engine - tight engine, >> >> more >> >> >> power, more heat. So it appears that this >> engine >> >> is >> >> >> much tighter. I can now maintain level flight >> >> >> burning 4 gph when it used to take 5.5 gph. >> >> Can't >> >> >> wait until its broken in a bit more to see >> what >> >> the >> >> >> top end is. Overhaul kit from Real World >> >> Solutions >> >> >> and parts from Bruce T appear to have come >> >> together >> >> >> in a tight nit engine. >> >> >> >> >> >> But, it does appear the small cooling inlets >> >> (which >> >> >> I had planned to open up a bit) are too small >> for >> >> >> the new HP being produced (are you listening, >> AL >> >> >> {:>)?. Also, several people mentioned after I >> >> >> arrived back at GooseCreek that the exhaust >> was >> >> >> deeper and louder. Even my wife mentioned it >> no >> >> >> longer had that "whinny" sound. >> >> >> >> >> >> So thanks for all the well wishes from >> everyone, >> >> >> advice, and engineering consultation on the >> >> cause. >> >> >> I have mailed seals to Tracy and Bob >> Perkinson, >> >> so >> >> >> that should provide some "harder" data on the >> >> status >> >> >> of the seals. >> >> >> >> >> >> >> >> >> Ed Anderson >> >> >> Rv-6A N494BW Rotary Powered >> > === message truncated === > > >>> Homepage: http://www.flyrotary.com/ >>> Archive: http://lancaironline.net/lists/flyrotary/List.html > > > -- > No virus found in this incoming message. > Checked by AVG Anti-Virus. > Version: 7.0.308 / Virus Database: 266.11.1 - Release Date: 5/2/2005 > >