Most Sonexes are trimmed using the AeroConversions Trim System fitted to ‘NX, which uses a trim wheel and jackscrew assembly combined with two springs to put tension on the control stick. Basically, turning the panel-mounted trim wheel anti-clockwise adds ‘nose down’ pitch trim by applying spring-loads to the elevator circuit.
To trim ‘nose up’ simply turn the trim wheel clockwise. However, for UK-registered aircraft the LAA also requires the original elevator trim tab on the port elevator to be retained and linked directly to the flap lever, so that as flap is extended the elevator trim tab simultaneously and automatically trims ‘nose up’.
Area 51% wrote:Our 1953 Bonanza had a wicked nose down tendency while deploying the flaps. Nearly full up trim was required. A real drag during a go-around.
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