If the prop has an aluminum hub to support the blades, I would not use it on a direct drive VW. 5 knows failures of Warp Drive 3 blade props on direct drive VW based engines, personal experience over 28 years. Unclear wheather its torsional vibration or simply overloading the crank because of the spinning weight, or a combination of both. The 3 blade Warp Drive 62" props weigh in at about 13 lbs if memory serves.
During airboats years, I did run a Power Fin 3 blade on a stock 1600 cc pusher for about 50 hours. The Power Fin weighed 7 lbs. The big difference is in the weight of the blades. Not enough running time to draw a conclusion. Steve Bennett ifly...@msn.com _________________________________________________________________ Windows Live?: Keep your life in sync. http://windowslive.com/explore?ocid=TXT_TAGLM_BR_life_in_synch_052009