Hirobo HI0304054 Tail Fin Set for Lepton Lex  [HI0304054]

Lepton Lex tail stabiliser replacement

The Hirobo HI0304054 tail fin set is supplied as a replacement component for Lepton Lex helicopters, presented by model number to allow straightforward fit verification before ordering.

Its purpose is to restore the tailplane geometry that affects yaw stability and control response. The set replaces worn or damaged fins and supports routine setup tasks such as trim and tracking adjustments.

Installation typically involves removing the old fin, transferring any reusable mounting hardware, and fitting the new fin so it lines up with the tail boom and vertical stabiliser. After installation, re-check tail tracking and apply minor trim corrections until the aircraft flies straight with predictable yaw response.

When carried out correctly, fitting the replacement fin helps maintain steady tail authority and reduce flutter risks. Remember that final tail behaviour depends on the rotorhead and tail control configuration, so use small incremental tuning steps and hover verification.