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Armstrong Fuselage A+System Upgrade
The latest Armstrong A+System promises a better rigidity between mast-fuselage and fuselage-front wing. For large wings upgrading my old fuselage to the new A+System did indeed improve the firmness of these connections.If you already have a A+System fuselage but an old mast or front wing you need the Armstrong upgrade kit to drill two additional holes into the mast and one into the front wing. Arn...