Jan 04, 2012, 08:52 AM
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Albuquerque NM
Joined Oct 2003
8,237 Posts
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Setting Up the CG and Mounting the Battery
I had hoped that the battery would end up on CG, but as it turns out it needed go go all the way forward to get the model to ballance at 31%. The 2100 mah 2S battery was mounted on a lite ply tray suspended between the firewall and rear cabaqne support.
Hatch covers were made from .010 styrene to cover the access hatches for the servos and Rx at the rear and the battery up front. The covers were sprayed with Aluminum Metalizer to finish up the model.
As it stands, the Ag Cat tips the scales at 20 oz. w/ the 2100 2S battery. That puts the wing loading in at 6.15 oz./ sq. ft., so she should be a nice gentle flyer. Because the model is so short coupled I desided to go with a more forward CG then normal, and will adjust as needed once the test flights get underway -- hopefully on Friday morning, so stay tuned, this one is just about done.....
PAT
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