flyrotary@lancaironline.net Mailing List Archive

See, now if this was a forum, you could go in and correct your original post, rather than having to leave it there in the archives :-)

BTW, I had meant to acknowlege that the diff between 12.5 per sec and 100 per sec was indeed a significant difference. The original point is certainly valid, and something to consider.

Rusty (still gmailing)

On 1/18/06, Mark R Steitle <mark.steitle@austin.utexas.edu> wrote:

I think I should have stopped at 12.5/second, since there's one coil per cylinder.

Mark

(Now Rusty has me correcting myself)

From: Rotary motors in aircraft [mailto: flyrotary@lancaironline.net] On Behalf Of Mark R Steitle
Sent: Wednesday, January 18, 2006 11:12 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: LS1 Coil Failures

Yes, that's the beauty of a V-8. Also, 1500 rpm @ cruise would be in OD mode.

Rechecking my math again…

V-8 LS1 Engine

Cruise rpm – 1500

Each cyl fires once/2 rev = 750 firings/minute

750 Divided by 60 sec = 12.5 firings/second

12.5 divided by 8 cyl = 1.56 firings/coil/sec

Rotary Engine

Cruise = 6000 rpm

Each rotor fires once/rev = 6000 firings/rotor/minute

6000 divided by 60 sec = 100 firings/second/rotor

Rusty, please check my math. ;-)

That's a big difference!!!

Mark S.

And do you really cruise down the highway at only 1500 rpm?

Al G