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,

            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" <neil.unger@bigpond.com> 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 <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