replacing the rudder CA hinges on my giant scale PT 19. They are just old. I was rolling into the shop a couple of weeks ago and the rudder just came off. Glad it happened there instead of in the air. Anyway, I want to put robart hinge pins in place of the CA hinges. They come in different sizes, what diameter of hinge pin should I get for this plane? To be safe I'm going to replace all the control surface hinges with the Robarts.

Thanks

I use robarts all the time. In most cases I use the 1/8" unless the control surfaces are quite thick. Make sure you put some oil or vasoline on the knuckle. I also use Pacer hinge glue but I know lots of people that use the gorilla expanding glue. I just don't like the mess. BTY I have never had a hinge fail using the hinge glue. Also, water clean up. When I install the hinges I take a 1/4" dowel and wrap a piece of sandpaper around it and then I sand a small circular slot where the hinge is going to go. That will allow the knuckle to fit into the slot so that you have a very small gap on your hinge line. Just my 2c

You can also use titebond glue. I used it when hinging my Funana x100 and it holds very well.

If your hinge line is beveled, use a Brad Point drill bit. It will help you when centering the holes. The tip on the bit keeps it from walking.

Use the 3/16" diameter hinges and be sure to buy the drill guide

http://www3.towerhobbies.com/cgi-bin...&I=LXET65&P=ML

Thanks. I bought the 50 pack of the 1/8 robarts, came with the drill guide, used it on cub last night for the elevator, works well and not the mess that I usually make with the CA. will get a bag of the 3/16 for the PT 19

Hey Minnflyer-I don't have those nice slides. I have to explain it the old fashion way,,,,I earn it,,, Ooops, I think that was an ad for Smith and Barney?????? or some financial institution. Wasn't sure on the 1//8" or the 3/16" didn't know how thick the leading and trailing edge was on that plane.

Well, he said "Giant Scale". I use 3/16" on anything larger than 1/4" wood

bill,,,where Minnflyer shows the chamfer is where I use the dowel and sandpaper to achieve the same results.

See what happens when you don't read the whole post. You don't think it might be my comprehenion do ya

It was understood Gene. My question to you is where are you getting the Pacer from?? I'm almost out and I really like the stuff. I use the tite bond too. Gorilla if I have wobbled out the holes from test fitting.

Gene try this linkI think they still have some

http://www.quicktechhobby.com/Merchant2/merchant.mvc?