Mailing List flyrotary@lancaironline.net Message #63186
From: <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: redrive options
Date: Tue, 21 Mar 2017 13:45:07 -0400
To: <flyrotary@lancaironline.net>
Correction, two bangs per revolution on the 4 cylinder.


Chrissi
CG Products      
 


-----Original Message-----
From: cozygirrrl <flyrotary@lancaironline.net>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Tue, Mar 21, 2017 12:41 pm
Subject: [FlyRotary] Re: redrive options


Rotary torque pulses can be very destructive before buying anything specifically​ mention the rotary. If they know anything they will be worried.

Bill Jepson

Somebody please correct me if I am wrong but I have understood the opposite, the rotary engine does not have the 4 bangs per prop revolution of a traditional 4 cylinder aircraft engine which shows as a spiky positive and negative graph when plotted.
The output of the rotary is always positive torque in nature and overlapping sinusoidal due to the two rotors when the output wave forms are plotted, hence the smoothness of the rotary. When peak output is plotted it shows an always positive gentle wave.

Chrissi
CG Products      
 


-----Original Message-----
From: William Jepson <flyrotary@lancaironline.net>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Mon, Mar 20, 2017 7:02 pm
Subject: [FlyRotary] Re: redrive options

Rotary torque pulses can be very destructive before buying anything specifically​ mention the rotary. If they know anything they will be worried.

Bill Jepson

On Mar 20, 2017 3:48 PM, "drhyed" <flyrotary@lancaironline.net> wrote:
I had brief conversation with them last fall and they designed the gearbox with the intention of offering higher horsepower options:

"We do have plans for a higher horsepower engine.  When we designed our gearbox we intended to do engines to about 225 hp from the start.

Our intent is to do a 155 hp normally aspirated 2 liter and a 200 hp turbo version"

I did not mention a rotary engine specifically though.


Jay

On Mar 20, 2017, at 5:31 PM, Charlie England <flyrotary@lancaironline.net> wrote:

These guys have been advertising on ebay for a while. I have no idea about whether they are legit, or whether the drive is suitable for a rotary. The web page claims 'good up to 225HP', but their target installations are closer to half that, so....


Charlie

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