X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fmailhost01.isp.att.net ([207.115.11.51] verified) by logan.com (CommuniGate Pro SMTP 6.0.7) with ESMTP id 6638489 for flyrotary@lancaironline.net; Fri, 13 Dec 2013 23:31:30 -0500 Received-SPF: none receiver=logan.com; client-ip=207.115.11.51; envelope-from=bbradburry@bellsouth.net Received: from desktop (adsl-98-85-112-225.mco.bellsouth.net[98.85.112.225]) by isp.att.net (frfwmhc01) with SMTP id <20131214043055H0100j2jcie>; Sat, 14 Dec 2013 04:30:55 +0000 X-Originating-IP: [98.85.112.225] From: "Bill Bradburry" To: "'Rotary motors in aircraft'" References: In-Reply-To: Subject: RE: [FlyRotary] Re: 2 cycle premix Date: Fri, 13 Dec 2013 23:30:57 -0500 Message-ID: <7E5B63FA74A0494F88EBC5A6ED790295@Desktop> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_001E_01CEF85B.60A9DBA0" X-Mailer: Microsoft Office Outlook 11 Thread-Index: Ac74cJ1VM+RKOQT1TlmT3RNLLyNwDAAFA39g X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6002.18463 This is a multi-part message in MIME format. ------=_NextPart_000_001E_01CEF85B.60A9DBA0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit I get about 185 mph and 8 GPH with my Lancair Legacy FG with the Renesis at about 5800-6000 RPM, but I doubt I could get 224 mph in a dive! :>) Bill _____ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Tracy Sent: Friday, December 13, 2013 9:02 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: 2 cycle premix Speed about 165 - 175 mph, 6.5 - 7.5 GPH. These are the Renesis numbers on RV-4, not the 20B RV-8. Tracy Sent from my iPad On Dec 13, 2013, at 19:14, Thomas Giddings wrote: Tracy: what speed and fuel burn at your cruise settings Kind Regards Tom Giddings On Dec 13, 2013, at 6:06 PM, Tracy wrote: I typically cruise at 5400 - 5600 rpm. WOT at top speed (224 mph) rpm is 7250. Tracy Sent from my iPad On Dec 12, 2013, at 23:29, "Neil Unger" wrote: tracy, If you are happy with 6000 for take off, What rpm do you cruise at? Did you ever manage to get the monitor to record litres?? Neil. From: Tracy Sent: Thursday, December 12, 2013 9:33 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: 2 cycle premix Using a 74 x 88 2blade on my Renesis. I get about 6000 on takeoff so I would not say you have too much prop. possibly too little if that 6800 rpm is accurate. 1800 EGT is not unusual at peak EGT & WOT. .75 oz per gal oil mix. Tracy On Dec 10, 2013, at 19:08, "Neil Unger" wrote: All, finally flying again, but my prop is too big. It is a 70" dia by 90 inch pitch. Max revs on takeoff is about 6800 and the EGT is pushing over the 1850 degrees. Obviously the prop is too big as revs are restricted and the motor is working too hard hence the EGT. What size props are you people running?? 2 rotor renesis. Neil. From: David Leonard Sent: Thursday, August 08, 2013 7:12 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: 2 cycle premix I use the same mix, but at closer to 1 oz/gal. Why? That is what Tracy does. Dont think it is very critical over the short term. I have gone without oil for a tank or two when I didn't plan well. I have also put multi-weight aviation engine oil in (at .5 oz/gal) on one occasion when I forgot to bring along any 2-stroke oil at all. Dave Leonard On Fri, Jul 26, 2013 at 11:39 AM, Bill Bradburry wrote: I use the same mix as Dennis but at the rate of 3/4 oz/gal in non-ethanol auto gas. My engine is a Renesis with 70 flight hours. Bill B _____ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Clouduster Sent: Friday, July 26, 2013 9:17 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: 2 cycle premix I use a 50 - 50 mix of MM and WalMart 2 stroke @ 0.50 oz/ gal. Mixed in auto gas. My engine is a Renesis with 500 +hrs. Dennis H. Sent from my iPad On Jul 25, 2013, at 16:29, ARGOLDMAN@aol.com wrote: Greetings all, For those of you who are actually flying and have some time on your rotaries and are using Pre-mix 2 cycle oil: 1) what oil are you using 2) why that brand 3) what ratios are you using 4 where is the best place to get it Thanks Rich -- David Leonard Turbo Rotary RV-6 N4VY http://N4VY.RotaryRoster.net http://RotaryRoster.net ------=_NextPart_000_001E_01CEF85B.60A9DBA0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

I get about 185 mph and 8 GPH with = my Lancair Legacy FG with the Renesis at about 5800-6000 RPM, but I doubt I = could get 224 mph in a dive!  :>)

 

Bill

From: = Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Tracy
Sent: Friday, December = 13, 2013 9:02 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: = 2 cycle premix

 

Speed about 165 - 175 mph,  6.5 - 7.5 GPH.   These are = the Renesis numbers on RV-4, not the 20B RV-8.

 

Tracy
=
Sent from my iPad


On Dec 13, 2013, at 19:14, Thomas = Giddings <n360tg@earthlink.net> = wrote:

Tracy: what speed and fuel burn at your cruise settings

Kind Regards

Tom Giddings

 

 


On Dec 13, 2013, at 6:06 PM, Tracy <rwstracy@gmail.com> = wrote:

I typically cruise at 5400 - 5600 rpm.   WOT at top speed = (224 mph) rpm is 7250.


Tracy
Sent from my iPad


On Dec 12, 2013, at 23:29, "Neil Unger" <neil.unger@bigpond.com> = wrote:

tracy,

  &n= bsp;         If you are happy with 6000 for take off, What rpm do you cruise = at?   Did you ever manage to get the monitor to record litres?? = Neil.

 

From: Tracy

Sent: Thursday, = December 12, 2013 9:33 AM

Subject: [FlyRotary] Re: 2 cycle premix

 

Using a 74 x = 88 2blade on my Renesis.  I get about 6000 on takeoff so I would not say you = have too much prop.   possibly too little if that 6800 rpm is accurate.    1800 EGT is not unusual at peak EGT & = WOT.

 

.75 oz per = gal oil mix.

 

Tracy

 


On Dec 10, 2013, at 19:08, "Neil Unger" <neil.unger@bigpond.com> = wrote:

All,

  &n= bsp;       finally flying again, but my prop is too big. It is a 70” dia by = 90 inch pitch.  Max revs on takeoff is about 6800 and the EGT is pushing = over the 1850 degrees.  Obviously the prop is too big as revs are restricted = and the motor is working too hard hence the EGT.  What size props are = you people running??  2 rotor renesis.  = Neil.

 

Sent: Thursday, = August 08, 2013 7:12 AM

Subject: [FlyRotary] Re: 2 cycle premix

 

I use the = same mix, but at closer to 1 oz/gal.  Why?  That is what Tracy does.  Dont think it is = very critical over the short term.  I have gone without oil for a tank = or two when I didn't plan well.  I have also put multi-weight aviation = engine oil in (at .5 oz/gal) on one occasion when I forgot to bring along any = 2-stroke oil at all.

 

Dave Leonard

On Fri, Jul = 26, 2013 at 11:39 AM, Bill Bradburry <bbradburry@bellsouth.net> = wrote:

I use the same mix as Dennis but at the rate of 3/4 oz/gal = in non-ethanol auto gas.  My engine is a Renesis with 70 flight = hours.

 

Bill B

 

From: = Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of = Clouduster
Sent: Friday, July 26, = 2013 9:17 AM


To: Rotary motors in aircraft

Subject: [FlyRotary] Re: 2 cycle premix

 

I use a 50 - 50 mix of MM and WalMart 2 stroke @ 0.50 oz/ = gal. Mixed in auto gas.  My engine is a Renesis with 500 = +hrs.

 

Dennis H.

Sent from my iPad


On Jul 25, 2013, at 16:29, ARGOLDMAN@aol.com wrote:

Greetings all,

 

For those of you who are actually flying and have some time = on your rotaries and are using Pre-mix 2 cycle oil:

 

1)  what oil are you using

2)   why that brand

3)   what ratios are you using

4    where is the best place to get = it

 

Thanks

 

Rich




--
David Leonard

Turbo Rotary RV-6 N4VY
http://N4VY.RotaryRoster.net http://RotaryRoster.net =

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