3MM

jxf 22x10
RPM can to 6600 above Will fly 30 times of later

webber

Hi guys,

I want to share my thought.

Sometimes we want to save our money,so buy the cheapest engine.

Once U buy one , we will regret and junk it

Because the user was not satisfied with its work.

Maybe U won't try the cheap one again.

I had discussed with the maker, he wanted to correct the defects befer selling.


And he will keep improving as fast as he can.
Now the hobbies who help 3MM to test that engine feel that this one is different from the others befer

When they fly it , they don't feel it is low-price one.

Its performance and lasting will not let you down, if u want to give that engine a chance.


By the way I know the 3MM maker but I don't sell his engine.

and we are not business parner.

I enjoy the flying, I don't want to do any business with model

G-armor

Hi webber

I don`t agree with you !

Maybe the quality is the same as the cheapest engine from china.

Did you quys view the third photo ?

I found something wrong with this nice 50cc !

See the picture below.

3MM

Dear G-armor
Thank you for your advise.
We have already found this question, and modified the mould to strengthen again to this.

shakeelsid

hey 3MM, Very nice casings - Thats all I can say at this time.
I will try to say things clearly and simply.
If you really want to sell it for $400, (which is no really cheap), you have to tell us more.

What is piston, rings, cylinder, crank materials,
which bearings, what machining operations, what quality inspections.
It is not enough to flight test 20 or so engines with other model fliers. Put one on a stand and let it run extended period of time (12 hours, 24 hours constantly, at random throttle settings) then open it and see whats wrong. correct what is wrong And then write a report and tell us about it.
Run it in small cowls, see if hot.
Run with many props, see if different - many airplanes need different props.
That broken mount lug is bad, it is material or casting related, as it seems thick enough - be careful what you show - dont show work in testing or development.
If you dont mind, get someone who can write good english for you - it is important.

And then, send a few to the US and Europe for field testing - They will fly in local clubs and if they are good other people would want to buy from you. I can test one for you and so can some other very good people here.

I wish you luck
sid

3MM

Hi sid

Thank you for your advise.
We spend the same method testing everyday too.
The shortcoming will be improved.
Please often contact with me!
CHEN