RE: weedeater/chainsaw 39cc for free, where to start?
i flew it today in 20mph winds.. all the lhs had was a 14x8 prop so i used it, it was making about 7800 rpm so i taxied it up and down the runway to get the feel for it, then i tried to fly it and it wouldn't rise, so i backed up and had to use the entire runway! it finally rose up but its climbout was astronomically slow, it was basically in a stall the entire time that it was facing into the wind, i made about 3 big laps but could never get much above the tree line, so i brought it in.
so i fueled it up and flew again, this time it seemed to be running a little stronger than before so it rose up a little easier, but was still near stall when it was facing into the wind.. i made 4 big laps, everything seemed ok until i got to the other end of the field and for some reason with full up elevator and full throttle it was still dropping the nose slightly, it came on down and bent the flimsy engine mount i rigged up, didn't even break the landing gear or anything else, just the flimsy engine mount, so i was fortunate.
in hindsight i believe she was nose heavy, i suspected it on the first flight, but didnt change it and i could tell a little more on the second flight with a full tank of gas! but anyway what would you guys suggest to mount this engine with? i was thinking some L brackets from lowes? what i had was a 3" strip of aluminum (an old road sign that i cut to shape) and the 2 bolts at the bottom of the head mounted to that aluminum, then i reinforced it with some flat L brackets that i cut down the center and slid over the aluminum. ( the L bracket slid over the aluminum after i ripped it down the center and was perpendicular to the aluminum but flat against the side of the fuselage) but the road sign was weakened by the 90 degree bend i made in it and that is where it bent then broke at when i tried to straighten it back into position. what could i use, the carb is mounted to the back of the engine where the 4 bolts are that i think most of you use.. all i have available to mount the engine is the 2 bolts that hold the entire head of the engine on.. they will work fine to mount with as they are long enough, but i just need something strong enough to mount to!