I bought a slow stick recently to begin flying. When I bought it the people at my local hobby shop recomended prop savers. I tried them and discovered when I went nose down usually the prop would break as well as the prop saver, so I stoped using them. I now have found that in most cases you can glue your broken plastic props together and they work as good as new. This is what I have been doing. I will glue the 2 pices together with CA glue and let dry. Then I will cover with a thick coat of 5 min. epoxy. I have never had one come apart unless I hit something with the prop. Hope this will save some of you some money, because it can become expensive.

Really a bad thing to do. You glue a break, then put epoxy over it. Then you spin the prop on the engine. If it is not ballenced you get the problem of shaking the airframe apart.

The bigger problem is when the prop flexes. It will start throwing epoxy. Then, just at the wrong time, you will be spinning your engine up and the glue will let go, and the blade that de-planes with be sticking out of your friends throat or face.

If you break a prop and can't afford to replace it, maybe pick another hobby. Gluing a broken prop together is asking for a huge amount of trouble.

DON'T DO IT![:-]

The break is close enough to the center and with the amount of glue that I use there is virtually no off ballance.

crazy... how is it worth the risk?

What risk? This method is just as stable as a new prop.

Can anyone say, "Troll"? Say it with me this time, "Troll".

troll?

Not a matter whether it will break, A matter of when. Just pray someone isn't in the road when it lets go. Murphys law. Not worth it for someone to lose an eye.

I completely agree. Either learn not to break props (because if you're resorted to gluing them together, you must be breaking an awful lot) or don't fly until you can afford a new prop. You're not doing a smart thing.

Please stop embarassing yourself by replying. This is one of the worst trolls I've ever seen.

This is not a troll account. I just found this site about a month ago.

I agree, it is very dangerous to glue a prop back together. Seriously, someone could be injured or even killed. Imagine the amount force on that prop blade WHEN it lets lose. Please reconsider reusing those props. Props are really one of the least of the expenses of RC. Why not cut a corner somewhere else. For example instead of buying 10% fuel, buy a gallon of 5% and a new prop, the price will be about the same and everyone will fly safer!!!

This is on a slow stick electric plane.

Just a thought, but why dont you look into a folding prop? Take the advice given here....it is sound advice. You are playing with fire.

And a question from some earlier posts....what do you all mean by troll? New term to me.

I just found... I beleve a troll account is someone who already has an account and gets another one. The 2nd one is a troll.... I guess. But this is my first account on here.

Can you get a folding prop for a GWS motor?

Im not very well versed on electric stuff...stick mostly to big gas engines...but in todays world and with the surge in popularity of the small electrics, I find it hard to believe that you couldnt. Pop over to the Electric Universe and post that question. Im sure someone there has the answer.

FlyByPDX,
A troll is someone who "fishes" by posting something that will get people upset or start arguments. I don't believe that is what you're doing.

Guys,
It has become relatively common practice (not necessarily a good one) to glue GWS plastic props back together. For use on the very small GWS electric park flyers.

These props are not under the loads that we see with glow engines, and are typically driven by electric motors that do not have the capability of pulling more than about 10 ounce of aircraft around, with rpm's in the 2500 (max) range.

I do not agree with doing it, as the props only cost about $2 each, but as I said, many people are doing it without problems.

FlyByPDX (again),
If you ever get beyond the tiny park flyers, DO NOT attempt to repair props, they can cause serious injury, and will NOT hold up to the power of even a speed 400 electric motor.
Dennis-

Guys that fly indoor 3d foamies glue there props all the time, were talking geared electric here not a big glow motor. Most of the time the big orange props break at the outer 20% of the prop. You can glue the cracks and they will hold. Sure they wont be perfectly balanced but it is a 14 oz plane, people fly them with bent propshafts, gears with teeth stripped etc. Do not do this on a conventional prop and glow motor, too many rpms, thicker , heavier plastic and loads of torque throwing at someone

I called my welder supply today and they are gonna order me some special "plastic welding rods" but so far they don't have a supplier for wooden rods,they'll let me know.

Let's look at the trade off. You save 7 dollars and increase the chance of injury and destruction of your model 10 fold.

Not a very good deal!

Let's put it another way. If I could guarantee to reduce the chance of injury and destruction to a tenth of what it is now, would you give me 7 dollars!

I bet you would!

-David c.