I am in the process of building Hangar 9's J-3 Piper Cub as my first scale aircraft. While it is an ARF, I did much research on each Cub ARF on the market to see which is closest to scale and decided on the Hangar 9 version. I was planning on putting a Saito FA-72 4-stroke in the plane, but ran into a small problem: lack of funds and interest in other areas of R/C aircraft. I am also looking to get into 3D flight. My uncle recently handed down to me his Dazzler 40 ARF with OS 46FX. Then I realized why he handed it down: the horizontal stab is nowhere near being parallel with the wing, a major construction flaw on his part. Anyway, I was going to gut the plane and use the 46FX for the basis of a 3D plane until I read that 4-strokes are truly the right choice for a 3D aircraft. While I really hoped to pair the Cub with the Saito given what I've read, I feel that the better overall choice is to put the Dazzler's 46FX in the Cub and save the Saito 72 for a 3D plane (I would love to save the Saito for the Cub and buy another Saito 72 for a 3D aircraft, but that is unforutunately out of the budget). What do you guys think I should do? How will the Cub fly with an OS 46 FX vs. a Saito FA-72? An interesting point to take note of is that in the Cub's assembly manual, Hangar 9 describes installation of a .46 2-stroke engine, only briefly mentioning that placement of a 4-stroke is possible, but only after modification of the throttle pushrod placement. Does this mean that most Cub's usually use 2-strokes? Let me know what you think. Thanks a lot!

Erik