ORIGINAL: Flip and Fly
If that motor got fried running at 2000 rpm for 2 hours I would never buy a DA
.
I agree with the fly to break in, but talk about making someone feel a little worried[&:]
Also check with the 3W engine manual, they say its not a harmful practice for there motors but recommend in the air as the best way to go.
Here is what 3W manual say
We strongly suggest to use following method:
Mount the engine onto a test stand with cylinder(s) being in free air to make sure that the air can flow propely over the cylinder(s). This is extremely important for good cooling.
As per our instructions use mineral based 2-stroke oil, mixture ratio 1:30
Start the engine, set RPM to 2000 - 2500 and let the engine run for 10 to 20 hrs.
We suggest not to use mufflers due to the rich mixture.
When breaking in period has been finished, follow our installation tips to mount the engine onto the motor-mount.
Use fully synthetic oil mixture 1:50
enjoy the power of your engine from the first flight on
Is there any difference between DA and 3W? I confuse