Yeah, that one always mistifies me, also. Why in the world would a company build an aircraft that is rated for a certain size engine, and then NOT build the firewall so that it will support and endure the stresses of an engine that is three times the size of the recommended powerplant...SHAME ON THEM!! It never ceases to amaze me how some of you guys just dont seem to have the common sense to understand a simple principle; if you grossly overpower your planes and the firewall or other component fails, the ONLY one that is responsible is YOU! Not the ARF manufacturer, not the hobby shop, not the engine manufacturer, YOU the builder. If you build that ARF without checking ALL the glue joints and reinforcing what needs to be made stronger, and the structure fails, the only one that is responsible is YOU! Not the ARF manufacturer, not the hobby shop, not the little Chinese guys that put it together in the first place, it's YOU the builder! Yeah, I've got a couple of overpowered planes, one of which is WAY overpowered. I did a lot of reinforcing around the firewall where I thought it needed it the most, and so far so good. BUT, if it falls apart tomorrow, I'm not gonna ***** and whine about the plane being of poor quality. You know why? Because I CHOSE to put those engines in there and ignore the recommended engine sizes, so it's all on ME, plain and simple.
ORIGINAL: balsabandit
Not a jump to anything. I posted my concerns when I got my H-9 P-47, and lots of flyers in this forum brushed it off. I found this post, and thought everyone should see that my concerns were not an isolated incident, but rather an ongoing problem that is not addressed by the importer. Hearing about several instances where a powerful and heavy engine disengages from the airframe is not jumping to a conclusion. It is a matter for further investigation, and warrants serious consideration by the buying public. We owe the other people with whom we come into contact while flying our models, our assurance that we are flying a safe (reasonably) model that has a decent chance of not posing a safety threat to those around the flight area. If that is jumping to a conclusion, then perhaps you need to get some exercise learning to jump as well.