It's not an easy task swapping these out because it's foam, but it can be done. You have to use foam safe CA, but I've found a hot-glue gun works much better and easier. You can buy one cheap at any art & craft store (other places too). I rebuilt my Spitfire from scratch twice and it's a tedious job. Looking at the shape of the P-40, the tail assembly on P-40 & Spitfire are the same (or very close). Also, the directions may be slightly off, but should be very close. It's been a couple months since I did it.
Here's how I figured it out (with trial & error):
(Before doing the below, note which holes he pushrods are in so you can put them back in the same place. Also, study how everything comes apart so you can put it back the same way. It can be tricky if you don't).
1. Remove the control horns from elevator and rudder (the plastic tabs on the back will come off with easy pressure). This allows you to remove the pushrods from the control horns.
2. Cut the tape on the sides & top of fuse just in front of the rudder. There is a place where the front of the fuse mates up to the back portion and it has tape on it. Don't cut the foam. You should be able to pull the top of the fuse off at the rudder. You can tell the factory doesn't use much glue here for this reason, but it can still be tricky. If it doesn't want to come off, get a sharp hobby knife and use the dull (back) side to work into the slot on the side to try and loosen it up. (Or something else if you prefer)
4. The rudder is going to be glued into the slot at the bottom. This is one reason why they sell the horizontal stab & rudder together in the same package. You'll have to cut the rudder tab off at the bottom to get the rudder off. You can't get the tab out without cutting it (I couldn't).
5. (FIRST: put the new control horns you get in the parts package into the new stab & rudder & put the tabs on the back. Just before gluing either the stab or rudder in place, go ahead and thread the pushrods into the same holes as the old before. Its almost impossible to get them in afterward without bending them.)
6. Once they're off, you'll see a round hole on the stab that fits over the riser in the back of the fuse. Put the stab on with hot glue or foam CA and hold it straight till it dries. Work fast!
7. Open up the slot in the back where the rudder tab goes into the fuse at the bottom with a hobby knife. Now thread the pushrod into the control horn and fit the rudder on top where you will glue it in place. (you'll see how the new parts fit together just like the old that came off) Work fast!
7. All you can do now is hope you've gotten it very close. You can bend the pushrod in or out in the "U" part to make sure the rudder & stab are straight.
8. Put new clear tape over the fuse where you cut it and you should be ready to go. Make sure the rudder & fuse are traveling the same distance in both directions when moving the sticks on radio. Also, it's easy to get the rudder & elevator pushrods backward as either will reach depending on which side you thread the new control horns in. (I did once)
Like I said, it's a tedious job, but can be done. Just make sure you fit everything together first before gluing it so you have a plan and know what you're going to do before gluing it. You can't go back afterward. Also, less is more when it comes to foam CA or hot glue. You don't have to use much to hold it in place and it'll go everywhere if you're not careful. I highly suggest a hot glue gun. Foam CA doesn't stick very well IMHO and it runs everywhere.
What type of hobbyist are you? Recreational
How often do you use this product? Several times a month
Age: 35 to 44
How long have you been participating in this hobby? 11-20 years
answered 2 years, 6 months ago
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Just kidding - sort of. You must take your time and go slow.
You will need to get medium CA glue and CA accelerator spray to complete the repair. You will also need a hobby knife.
Be sure to be very gentle when inserting the control horns (clevis) into the new tail assembly or you will bend it. don't rush.
Here are the steps
1. remove the control rods from the tail control horns. Be sure to note which hole the rod passes through. You will have one rod for the elevator and one rod for the rudder.
2. carefully pull the the tail and rear wing (rear stabilizer is the proper name) off. You may have to do some careful cutting, but be sure just to cut the parts you are replacing, not the fuselage.
3. Pry your tail mount (little plastic grip with prongs) off. Be careful as you may have to reuse it. I think the kit comes with a new one, but I could be wrong. clean the surfaces where the new elevator and tail will go.
4. Install the new control horn on the elevator (horizontal stab) going the same direction as the old one. before you glue the new elevator to the plane, attach the control rod from the plane to the control horn. Now carefully place the new elevator on the body and make sure it all lines up. You will use the new tail mount to hold the elevator to the body. There should be 4 little prongs (really little) that pass through the elevator into the fuselage. This is to make sure you get it on straight. The fuselage has 4 little holes in it to hold the 4 little prongs :)
5. Once you have it all fitted and understand how it goes together, glue the elevator and tail mount down. CA dries slowly so you will have a little time to get the holes and pins lined up right. Once its all good, spray the accelerator or wait for it to air dry (about 20 minutes).
6. Now carefully install the tail control horn into the rudder. Make sure you match up direction with the old one. Connect the rudder control rod to the control horn and dry fit the tail to the tail mount and fuselage. If it all lines up, glue it and spray it.
TA DA ready to trim :) - you will need to re-trim the aircraft most likely...
Be sure to youtube "hobbyzone champ tail replacment". The procedure is exactly the same for the Spit. Horizon has a nice video step by step tutorial that will help you accomplish this. Good luck!~
What type of hobbyist are you? Recreational
How often do you use this product? Several times a week
Age: 35 to 44
How long have you been participating in this hobby? 4-10 years
answered 2 years, 4 months ago
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