• The Biplane Forum is a large global active community of biplane builders, owners and pilots. From Pitts to Skybolts, to older barnstormers, all types are welcome. In addition to our active community, our content boasts exhaustive technical information which is often sought after for projects and maintenance. This information has accumulated over the 12+ years the forum has been in existence.

    The Biplane Forum is a private community. Subscriptions are only $49.99/year or $6.99/month to gain access to this great community and unmatched source of information not found anywhere else on the web. We are also a great resource for non biplane users, since many GA aircraft are built the same way (fabric and tube construction). Annual membership also comes with two BiplaneForum.com decals.



SA-100 weight & balance, CG range?

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

Dana

Well-Known Member
*
Joined
Oct 12, 2014
Messages
1,677
Reaction score
901
Can anybody tell me the allowable CG range and datum location for the SA-100? The W&B sheet in my plane shows a range of 22.69-23.76 (but I think that's the actual weighed range, not the allowable), the top wing leading edge as the datum, and a gross weight of 1290#, but a sample W&B with info from the prototype SA-100 N70P included with the paperwork shows a range of 20.6-25.08, with the firewall as the datum. So what are the correct numbers and datum? Or can anybody tell me the distance from the firewall to the leading edge? I don't have access to the plane now, and won't until I pick it up next month.

But, the calculations for my plane don't jive; with the given weights I get a most forward CG of 22.04 (full fuel, 170# pilot) and a most aft CG of 24.53 (170# pilot, 1/2 gallon fuel).

I haven't flown it yet, but I'm told it seems to fly nose heavy.
 
Last edited:

Latest posts

Back
Top