ORIGINAL: islandflyer
Along with the culprits for self distruction mentioned by Mithrandir, I would add the speed ingredient that has been addressed many times in this thread. The biggest problem may be that the notion of SLOW varies so widely depending on the pilot (as illustrated in DTB's post above).
Flying 3D with a bigger than average engine only means that I have a lot of power IN RESERVE. This gives me safety margines, and cannot be misused, or the plane will self-destruct.
Maybe this plane is not a good 1st 3D plane ???
I still love flying mine with the Saito 1.50
That's exactly what I mean. The YS 1.60 would vibrate way too much but could work. My 1.10 shakes the plane to a great degree, but flys great. It does have more power than a Saito 1.20, but I was making a point that the plane's power source can vary from a 90 size to a 180 class engine, which all need to be respected. I would hope the power of any engine at WOT would not be used for level flying or even considered for level flight regardless of the displacement that is used. The engine size suggested are only recommendations. The power of bigger engines is in reserve in case it is needed. Variations of speed does vary greatly from person to person and that is when I believe experience plays a big part of operating this type of plane or at least if the pilot is willing to listen to reason by someone with more experience with this type of plane can the plane be used with excess power.
If a person only knows idle and WOT, then they would need the minimum powered engine recommended for this plane. Better yet, they would do better with another plane all together