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Do not leave the charger is operating unattended as it may cause a fire
O-ring spacer x 2
Goblin Black Thunder / Thunder Sport
07 sec/60° @8
Metric Hex Nylon Nuts M4 H5 x 1pcs
O.S. 55HZ-R DRS Ringed .55 Helicopter Engine BLS2208 Do not leave the chargerO. S. 55HZ R DRS Ringed Competition Helicopter Engine The O. S. 55HZ R DRS is the evolution of the legendary 55HZ H Hyper, developed to meet the increasing demands of modern F3C competition flying and aggressive 3D helicopter aerobatics. While sharing the same proven ringed piston design and displacement as the popular 55HZ H, the 55HZ R introduces O. S.'s innovative Demand Regulator System (DRS) for significantly improved fuel delivery consistency