Mailing List flyrotary@lancaironline.net Message #24171
From: George Lendich <lendich@optusnet.com.au>
Subject: Weights
Date: Mon, 20 Jun 2005 21:18:14 +1000
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Rusty,
Here's some very accurate weights for your records-
Apex corner seals x6 = 19grams
Apex corner seal springs x 6 = 1 gram
Side seal springs x6 =1 gram
Side seals x6 = 25grams
Oil seal springs x4 = 10 grams
Oil seal retainers( metal) x4 = 92 grams
Oil 'O' rings x4 = 16 grams
 
Total of 164 grams ( 5.784936 oz)
 
Weighed all together 164 grams ( as a check for accuracy)
 
RX8 Rotor 9.3346lbs( 4243 grams)
 
I just can't see how you get 10 lb 9 oz rotor weight comparing these weights, even though the RX7 rotors are a tad heavier!
 
BTW Tracy's apex seals are 30 grams.
George ( down under)
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