Richard, Wish I could think in MM !!.......................<:) Kelly Troyer"DYKE DELTA JD2" (Eventually) "13B ROTARY"_ Engine"RWS"_RD1C/EC2/EM2"MISTRAL"_Backplate/Oil Manifold "TURBONETICS"_TO4E50 Turbo From: Richard Sohn <res12@fairpoint.net>To: Rotary motors in aircraft <flyrotary@lancaironline.net>Sent: Saturday, September 10, 2011 3:52 PMSubject: [FlyRotary] Re: bolt circle diameter of 13B counterweight Ok, the bolt circle diameter is 98.00MM.Richard SohnN2071Uwww.fairpoint.net/~res12/home.html----- Original Message ----- From: "Tracy" <rwstracy@gmail.com>To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>Sent: Saturday, September 10, 2011 2:46 PMSubject: [FlyRotary] Re: bolt circle diameter of 13B counterweightStill working on flywheel replacement design. Anybody got a counterweight handy to measure the bolt circle diameter?Tracy--Homepage: http://www.flyrotary.com/Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html --Homepage: http://www.flyrotary.com/Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html