Hi Jeff I thought the -2S had the rear fuselage extended to reduce elevator sensitivity and had the firewall moved forward to compensate by altering the engine mount position. I can well understand then why you correctly needed to add weight up front in various ways without building the firewall extension. I wasn't aware that RR changed the CoG envelopes as well to reflect any changes to wing position.
I sincerely hope Sid has a successful flight but I don't understand his reluctance to get his conclusions verified by a professional given the stakes. To me it's a no brainer given the magnitude of the weights apparently needed. Regards John John Martindale 29 Jane Circuit Toormina NSW 2452 Australia ph:61 2 6658 4767 m:0403 432179 email:john_martindale at bigpond.com web site: -----Original Message----- From: KRnet [mailto:krnet-bounces at list.krnet.org] On Behalf Of Jeff Scott via KRnet Sent: Tuesday, 12 May 2015 4:03 AM To: krnet at list.krnet.org Cc: Jeff Scott Subject: Re: KR> Ballast weight installation Sid brings up a good point here, especially for builders that are early on in their projects......snip ----- No virus found in this message. Checked by AVG - www.avg.com Version: 2015.0.5863 / Virus Database: 4342/9752 - Release Date: 05/11/15