Mailing List flyrotary@lancaironline.net Message #20478
From: Tracy Crook <lors01@msn.com>
Subject: Re: [FlyRotary] Re: Slade, Tracy and EM2 users...
Date: Tue, 19 Apr 2005 00:14:18 -0400
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Message
The apex seals are designed for the RX-7 rotor , not the RX-8.  No use on the RX-8 rotor was intended.
 
The concern (at the time) was the engagement of the pulley flange on the crank, not the bolt.  It is not a concern now.
 
As I recall, the RX-8 timing plate bolts to the flange with the 4 small bolts on the periphery and does not affect spacing on the large pulley bolt through the center. 
 
Tracy

Tracy,
I received my Apex seals,  please pass my thanks to Laura.
Checking for slot depth for the RX8 rotors, what depth did you design your apex seals for?
 
BTW did you realise the RX8 front pulley bolt is 1/2" longer than the RX7 bolt - I noticed you mention on your site some concern in this area.
 
As the e-shaft is the same length, those chaps wanting to use the Rx8 timing plate ( attached to Pulley) may need to purchase an RX8 pulley bolt, to take-up that extra length.
 
George (down under)
My observations are in line with Rusty's comments.  On the website you will see that I recommend the LCD for bubble canopy planes like RV-3,4,8, etc.  and VFD for planes with a roof.  I started with the VFD in my RV-4 and loved it 99% of the time.  But when the sun was low and at my 6, I had to shade the display to see it clearly.   I liked the VFD look and will use it in my -8 but will have the popular sun shade installed in canopy to make it visible 100% of the time.
 
Tracy (back from SnF, landed at Lake City,  parked car at top of hill, canoed 2 miles to house.)
 
 
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