X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from QMTA02.westchester.pa.mail.comcast.net ([76.96.62.24] verified) by logan.com (CommuniGate Pro SMTP 5.2.1) with ESMTP id 2825291 for flyrotary@lancaironline.net; Sun, 30 Mar 2008 23:53:26 -0400 Received-SPF: none receiver=logan.com; client-ip=76.96.62.24; envelope-from=gregw@onestopdesign.biz Received: from OMTA12.westchester.pa.mail.comcast.net ([76.96.62.44]) by QMTA02.westchester.pa.mail.comcast.net with comcast id 7WRp1Z03j0xGWP8520Zd00; Mon, 31 Mar 2008 03:51:45 +0000 Received: from gregoryii ([24.6.40.29]) by OMTA12.westchester.pa.mail.comcast.net with comcast id 7fsn1Z0030dkeQQ3Y00000; Mon, 31 Mar 2008 03:52:48 +0000 X-Authority-Analysis: v=1.0 c=1 a=L4PEZ_BVMqYA:10 a=UG5yTnfsTV3BlEV5K5AA:9 a=iRK1aPa6xFuNApbiFQ0A:7 a=RH275IQOEGqvj46OhBISOFhlMXYA:4 a=b8hG5vVbyAkA:10 a=PMTPzhuTNQq2YFWRkPEA:9 a=8d45ADkO2m2uAVc7uHAA:7 a=uUdnJLAEaSVGcCohsNKu0xGdXxEA:4 a=MSl-tDqOz04A:10 a=EzXvWhQp4_cA:10 a=AfD3MYMu9mQA:10 Message-ID: <09e301c892e3$35d14dc0$8801a8c0@yosemite.onestopdesign.biz> From: "Greg Ward" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Request (for those already flying...) Date: Sun, 30 Mar 2008 20:56:32 -0700 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_09E0_01C892A8.88C91660" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3198 This is a multi-part message in MIME format. ------=_NextPart_000_09E0_01C892A8.88C91660 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hey Mark; Thanks for the positive report on the 20B. I am hopefully within about = 3-4 weeks of doing my static run-ups. Waiting for the ECU, the prop, = and the welder, then it's light-it time. Are you turboed? I am doing = the turbo, and the inflatable cockpit seal, it's on order, so I hope the = noise will be tolerable, but if not, oh well. What are you using for = sound proofing? I am at just the right stage to install something, but = I don't want to add too much weight. Again, thanks for the input. Greg Ward Lancair 20B RG in progress ----- Original Message -----=20 From: Mark Steitle=20 To: Rotary motors in aircraft=20 Sent: Sunday, March 30, 2008 7:27 PM Subject: [FlyRotary] Re: Request (for those already flying...) Doug,=20 Well, I thought that someone with much more rotary experience than = myself would respond, but I guess they're all out flying, or maybe = they're on their way to SNF. So, I'll tell a little about my limited = experience flying a 3-rotor Lancair ES. I currently have 33.9 hours on = the airframe, and another 40 hours of ground running. =20 First thing you'll notice is that the engine starts with very little = fuss. From my limited experience flying behind Lycosarus, when starting = a Lycosarus, you are really wondering IF it will start, and you're = always relieved that it does, especially if it is a hot start. When = starting the rotary, I give it about 1/2" throttle, turn on the Main & = Aux busses, the EC-2, the fuel pumps, injectors, prop, and EFIS. = Finally, I turn mixture knob to full rich, touch the Program button once = for a bit of primer (if it is a cold start) and hit the starter and she = starts right now. After a few seconds of running, I start leaning = little by little. No jerking and shaking, just the sweet purr of the = rotary. The sound is much different, sorta like the difference between = a tractor and a Ferrari. Not to be overly critical of the Lycoming, = but the rotary is idling close to where the Lyco normally cruises. =20 Takeoffs are a real thrill if you're used to driving a family sedan. = By that I mean that the normal operating rpm you see with a rotary are = way above what most drivers will ever see in any family car. On my = takeoff roll, I usually see around 7200-7300 for a second or two until = the prop bites, then it drops down into the upper 6's, but I'm flying a = C/S prop, so others experience may vary. Applying throttle slower helps = to keep the R's below 7k. I'm used to flying behind 100hp, so when I = pour the coal to the 20B, it is very exciting for this pilot. You feel = every inch of throttle, even the last one. I'm accelerating down the = runway and am off and climbing in a few seconds. I usually climb at = about 105-110 kts (cruise speed for a 152) at around 1300 fpm. My = biggest headache has been the exhaust noise. I just ordered a new = Lightspeed headset and finished installing soundproofing material. I = had measured the sound to be 105db in cruise. I'm sure it was more than = that during climb. After installing the soundproofing mat, the sound = level dropped down to 98db. Not exactly "quiet", but a big improvement. = Once I get the rest of the upholstery installed, it should drop even = more. So, pay attention to the exhaust system. Your ears will thank = you. =20 Do people notice that you're flying a rotary? Absolutely! I have = people tell me all the time that they heard me flying over their house = on some particular day. The call me the flying chainsaw because the = engine sounds like a chainsaw, at least to them. I'm not sure if that's = a compliment or not. Anyway, it definitely has a different sound. Its late, so I'll stop. Will try to add more later. Now come on Al, = ED, Tracy, Dennis, Dave, etc. Let's hear your war stories. Mark S. =20 ------=_NextPart_000_09E0_01C892A8.88C91660 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Hey Mark;
Thanks for the positive report on the 20B.  = I am=20 hopefully within about 3-4 weeks of doing my static run-ups.  = Waiting for=20 the ECU, the prop, and the welder, then it's light-it time.  Are = you=20 turboed?  I am doing the turbo, and the inflatable = cockpit seal,=20 it's on order, so I hope the noise will be tolerable, but if not, oh = well. =20 What are you using for sound proofing?  I am at just the right = stage to=20 install something, but I don't want to add too much weight.  Again, = thanks=20 for the input.
Greg Ward
Lancair 20B RG in progress
----- Original Message -----
From:=20 Mark = Steitle=20
Sent: Sunday, March 30, 2008 = 7:27=20 PM
Subject: [FlyRotary] Re: = Request (for=20 those already flying...)

Doug,

Well, I thought that someone with much = more=20 rotary experience than myself would respond, but I guess they're all = out=20 flying, or maybe they're on their way to SNF.  So, I'll tell a = little=20 about my limited experience flying a 3-rotor Lancair ES.  I = currently=20 have 33.9 hours on the airframe, and another 40 hours of ground = running. =20

First thing you'll notice is that the engine starts with very = little=20 fuss.  From my limited experience flying behind Lycosarus, when = starting=20 a Lycosarus, you are really wondering IF it will start, and you're = always=20 relieved that it does, especially if it is a hot start.  When = starting=20 the rotary, I give it about 1/2" throttle, turn on the Main & Aux = busses,=20 the EC-2, the fuel pumps, injectors, prop, and EFIS.  Finally, I = turn=20 mixture knob to full rich, touch the Program button once for a bit of = primer=20 (if it is a cold start) and hit the starter and she starts right = now. =20 After a few seconds of running, I start leaning little by = little.  No=20 jerking and shaking, just the sweet purr of the rotary.  The = sound is=20 much different, sorta like the difference between a tractor and a=20 Ferrari.   Not to be overly critical of the Lycoming, but = the rotary=20 is idling close to where the Lyco normally cruises.  =

Takeoffs are=20 a real thrill if you're used to driving a family sedan.  By that = I mean=20 that the normal operating rpm you see with a rotary are way above what = most=20 drivers will ever see in any family car. On my takeoff roll, I usually = see=20 around 7200-7300 for a second or two until the prop bites, then it = drops down=20 into the upper 6's, but I'm flying a C/S prop, so others experience = may=20 vary.  Applying throttle slower helps to keep the R's below = 7k.  I'm=20 used to flying behind 100hp, so when I pour the coal to the 20B, it is = very=20 exciting for this pilot.  You feel every inch of throttle, even = the last=20 one.  I'm accelerating down the runway and am off and climbing in = a few=20 seconds.  I usually climb at about 105-110 kts (cruise speed for = a 152)=20 at around 1300 fpm.  My biggest headache has been the exhaust=20 noise.  I just ordered a new Lightspeed headset and finished = installing=20 soundproofing material.  I had measured the sound to be 105db in=20 cruise.  I'm sure it was more than that during climb.  After = installing the soundproofing mat, the sound level dropped down to = 98db. =20 Not exactly "quiet", but a big improvement.  Once I get the rest = of the=20 upholstery installed, it should drop even more.  So, pay = attention to the=20 exhaust system.   Your ears will thank you. 

Do = people=20 notice that you're flying a rotary?  Absolutely!  I have = people tell=20 me all the time that they heard me flying over their house on some = particular=20 day.  The call me the flying chainsaw because the engine sounds = like a=20 chainsaw, at least to them.  I'm not sure if that's a compliment = or=20 not.  Anyway, it definitely has a different sound.

Its = late, so=20 I'll stop.  Will try to add more later.  Now come on Al, ED, = Tracy,=20 Dennis, Dave, etc.  Let's hear your war stories.

Mark=20 S.
 

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