How to Repair a Damaged or Broken Freeing RC Plane

It can help you ave too much money

Hello everyone,maybe you have order a very expensive RC Jet,Maybe, it is broken when you .

Before you read it, you need to read manual carefully of freeing model. you can download manual here http://www.freewing-model.com/download.html



Everyone will have accidents. We design Freewing planes to survive most accidents. We design our planes to protect your radio and battery. If you are a newer flyer or like to fly in bad weather or like to do aerobatics or combat, you can expect to have a few repairs. That��s when you��ll be glad you bought a CTH plane. Our planes are durable, simple and easy to repair and fun to fly! When you buy a CTH plane you will "Fly more, Fix less!"

We rarely have a fire as shown in the picture but even that plane was repaired and still flying. EPP foam will return to the shape it was cut. If your plane is smashed the foam will heal. We had a kit that got run over by a truck that was built and is still flying. (See pictures at bottom of page.)

So I Wrecked My Plane .... What do I do?
Calm down. Eat a sandwich. Go to a movie. Do not start ripping off the tape and laminate! Secondary damage of a frantic repair can be worse than the primary damage. The EPP foam will return to it��s original shape. Rarely is there widespread damage. Remember, a surgeon doesn��t rip off all of a patient��s skin to fix a broken bone, he makes the smallest hole possible.

I Broke a Spar .... What do I do?
Leave the old spar in the plane. Find the exact location of the break. Use the same methods you used to install the original spar. Use a soldering iron on the planes with fiberglass spars and a razor blade on the planes with flat carbon spars, and cut a slot for a spar though the laminate and tape that extends 6�� on each side of the break. Install a second spar alongside the original to support the original spar across the break, and then glue it securely in place. After the glue sets, test it to make sure it is solid, and then add a strip of Extreme Tape and laminate as needed to finish the repair and make it look good. Sometimes, when melting repair slots where there is already Extreme Tape, it is easier to cut through the tape with a razor blade first, so the soldering iron can get through to the foam.
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I Bent My Motor Mount .... What do I do?
The reason we use stainless steel mounts instead of lighter aluminum is so that you can bend them over and over without breaking them. We design the bottom of the wing to be at a right angle (90 degrees) to the mounted motor, so just take the stainless steel motor mount off the plane, remove your motor if you think you might damage it. Take a hammer or pliers and tap or bend the mount back to the original shape. You can then remount your motor, attach the motor mount to the plane, and go flying. Some minor bending or changing of the angle of thrust of the motor can be done without removing the mount from the plane buy putting a screw driver behind the wing and applying pressure to the motor mount. Be careful not to break the Formica when straightening the motor mount.

I Tore My Wing .... What do I do?
Gently pull the tear slightly open and use a hot glue gun at low temperature (or Gorilla Glue, or Goop) to fill the tear, then push it back together and let it set. Make only the smallest cut possible to get access into the tear. Decide if the tear needs structural reinforcement so it doesn��t happen again. If it is minor, use clear box tape over the top and you are done. If it is deep or pieces are missing, fill the space with glue or scrap foam, and put 6�� strips of reinforced tape across the tear, and then laminate over the top. Use your iron to re-iron any wrinkled areas.

I Ripped the Laminate .... What do I do?
Simple laminate tears can be patched at the field with clear 2�� packing tape. Some holes can stay there for years without affecting the flight or the strength of the plane. If you fly combat, just look at the scars as trophies. You can do more trauma to the plane trying to repair it, than the original damage, so be careful about placing permanent patches.

I Broke my Formica ... What do I do?
I replaced the Formica in a plane this last month after a brutal but glorious death dive into pavement. The motor mount was bent and the Formica broke into 3 pieces and the screws had ripped out. I had used hot glue to build the plane so I used a sharp razor blade and carefully cut the laminate and E-tape around the Formica plate being careful not to cut the foam or the shock cord. I then put a medium hot iron that is within the temperature that laminate can tolerate on the Formica for about 1 minute being careful not to melt the surrounding foam (which is easy to do) and the Formica lifted off. The iron should be about 200 degrees if you have an inferred thermometer. After hot gluing a new Formica of the same size in place I put a couple of 5" pieces of E-tape over the laminate to strengthen the repair and put laminate over any of the exposed E-tape. I straightened the motor mount and re-drilled the new Formica and attached the stainless steel motor mount. The repair took about 20 minutes. My plane is up and flying very well again.

I Cut My Shock Cord .... What do I do?
Most shock cord damage is caused by the prop cutting the shock cord. This leaves breaks in the shock cord where the wing is most likely to be damaged in a forward impact. Replacing the entire shock cord could cause a lot of damage to the plane. Apply a 6�� strip of Extreme Tape over the top and bottom of the cut, and then laminate over the reinforced tape to keep it from breaking down in the sun and to help hide the repair. Try to blend it in with the surrounding tape and appearance. This usually isn��t hard if you are using the same tape and laminate as the original build. We are also doing more to protect the cord before the plane is even flown. Watch video #5 of the Assassin build and see how we are using "Hanging tape" or "Strapping Tape" to protect the back of the plane.

I have a dent in my wing what do I do?
Whether the dent is before or after laminating just let it sit for a couple of days. Don't use an iron or heat gun and don't soak the foam to try to get it to re-expand. The heat may distort the wing forever. EPP foam can melt and the foam may be re-shaped or damaged more with heat. EPP foam can soak up water and it is hard to get water back out of the foam. I have seen significant dents heal without intervention but just by leaving the foam on a flat table and letting it sit. This is a time to be patient for a couple of days and see what happens.

-Lee

Mail order has its challenges...
The pictures below show a Grim Reaper box we had returned from overseas. It has truck tire tracks across the middle of the box and tire marks on the foam of the wing. The box is torn in half and the parts were contained in the plastic bag that was put on by the post office. We laughed when the postman wanted us to pay return postage. (He changed his mind when he saw us laugh.) We liked the "We Care" printed on the plastic bag. One of the local flyers offered us $20 for it and we sold it too him. He built it and flew it. He told us that except for the tire tracks on the foam there was nothing wrong with the kit. Gotta love that EPP foam and the fiberglass spars. -Lee