Mailing List flyrotary@lancaironline.net Message #2636
From: David Leonard <Daveleonard@cox.net>
Subject: RE: [FlyRotary] Todd's Tach Divider
Date: Wed, 20 Aug 2003 07:40:34 -0700
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>
Message

Todd,

 

I would love to have a tach divider.  I’m closing in on the first start and am not confident in my current set-up (Connecting the CAS in parallel).  Would like to minimize delay if that doesn’t work.  If it does work I will let everyone know and pass along the tach divider to someone else.  Thanks –

 

850 Beech St. #612

San Diego, CA 92101

 

David Leonard

The Rotary Roster:

http://members.aol.com/_ht_a/rotaryroster/index.html

-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]On Behalf Of Haywire
Sent:
Tuesday, August 19, 2003 11:04 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: some progress, and more understanding

Attached are a couple of pics of my tach divider. It can be set to divide by any number necessary. I can't guarantee it would work with any tach but it works very well with my cheap off-the-shelf-at-any-autoparts-store, Hastings tach. I have a few more if anybody wants one.

 

S. Todd Bartrim
Turbo 13B RV-9Endurance
C-FSTB
http://www3.telus.net/haywire/RV-9/C-FSTB.htm

   "Whatever you vividly imagine, Ardently desire, Sincerely believe in, Enthusiastically act upon, Must inevitably come to pass".

 

The EC-2 tach output has 12 pulses per revolution, and won't directly work with any normal tach.  Todd has made a divider to bring the pulse rate down to normal, and it sounds like it's working well.  The TT that you have expects 1 pulse per rev, so if you don't mind dividing the rpm reading by 12...  :-)


 

Subscribe (FEED) Subscribe (DIGEST) Subscribe (INDEX) Unsubscribe Mail to Listmaster