flyrotary@lancaironline.net Mailing List Archive

Sounds like the 20B would be the ideal installation. I’m not that much concerned about the parts issue; almost anything you’re likely to need to replace (many hours later) is common to the 13B.

Al (Velocity 20B; http://members.cox.net/alg3/airplane.htm )

-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Dwayne Parkinson
Sent: Monday, August 02, 2010 3:32 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Bad rotary week

Bobby / Tracy - Do either of you know what HP your Renesis is generating? I'm very curious about the supercharged Renesis. If you know the installed weight that would be great info too?

George - I'm building a Bearhawk on floats and would like 250+ HP.

Anyone who cares - I currently fly a Stinson 108-1 behind a Franklin 150 so I'm painfully aware of how hard it is to come by parts for unique engines. That makes the 20B much less appealing as an option for me. That being said, I watched from the Sea Plane Base at Oshkosh as an Aeronca Sedan with 145 HP lumbered across Lake Winnebago trying to get off the water. People actually cheered when he finally broke a float free. I think he was in Appleton's airspace by the time he got into air (no, I'm not kidding either). That type of performance just won't cut it so anything less than 230 HP is not an option for me either.

Thanks very much.

Dwayne

From: Bobby J. Hughes <bhughes@qnsi.net>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Mon, August 2, 2010 6:33:36 PM
Subject: [FlyRotary] Re: Bad rotary week

Dwayne,

My super charged renesis uses 1 oz per gallon of 2 stroke oil. So it's very likely David is using 1 quart every 5 hours. Question is 2-stroke or sump? No indication I am using any sump oil. But I only have about 35 flight hours. I do have a small internal coolant leak and need to replace an o-ring when my fiberglass work is finished. I would choose the renesis side port exhaust over a peripheral port exhaust any day for our application.

Bobby Hughes

From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Dwayne Parkinson
Sent: Monday, August 02, 2010 4:43 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Bad rotary week

For anyone hoping that a 16X would show up any time soon: not ... gonna ... happen. No RX7 and the RX8 is still powered by the Renesis for 2011.

http://www.mazdausamedia.com/content/2011-mazda-vehicles-glance

As if that's not bad enough, when I was at Oshkosh I took in David Atkins rotary seminar. I came away pretty depressed thinking that I probably won't put a rotary engine in my airplane. Is everyone else really using 1 quart of oil every 5 hours? He also didn't have much good to say about the Renesis in an aviation application which leads me to conclude that the 16X will fare even worse in aviation applications as it is tweaked to meet higher EPA requirements and produce more low end torque.

Is anyone but Tracy using a Renesis? I'd really like to know what HP you're getting, what the fuel burn is and how it's holding up.

Thanks,

Dwayne

P.S. I couldn't find any rotary planes on the field at Oshkosh. Perhaps they sank into the mud.