Does anyone have a list of things to watch for or modify when building a SIG Hog Bipe? I just finished a Four Star 120. It was my first build. The Hog Bipe will be my second build. Thanks in advance.

I haven't built one.. but I did stumble onto a site with a lot of nice ones that are built.. You might find something you like here.

http://www.fubarhill.com/sighog.html

I have been doing some research on this plane and just wondering some things to look out for. Things that might get messed up if you're not looking for them.

Was flying mine yesterday, plenty power with a 91 fs, highly recommend this set up.

Built mine stock, but with the two aileron servo modificaion that should comewith a new kit.Instructions where spot on with no hidden issues that I can think of except that if you are going with the two aileron servo mod it would be a good idea to read the extra page of instruction supplied and mark the point of deviationin the original build manual.

The fuel tank is built into the fuse and is inexcessable, some make a tank hatch for future plumbing repairs also I have heard it is good to have the landing gear a half inch forward to stop nose overs on the ground, although a bit squirly on take off I have not had any issues with nose overs with the landing gear at the factory position.

Fun plane and has a nice presence in the air, enjoy

Thanks Raydar, I just ordered my Hog yesterday and wil use your tips during the build. I am glad to see Sig going strong, the woman said she had 43 hogs (bipe) ready to ship.

Look up the build thread by hookedonrc sp? and read through as much as you can stand as he and others contributed on all the changes and tips and I did and built a beautifully performing 7 pounder with a Saito 72. Flew great. Have another kit on the shelf I want to build another and just havent' gotten to it. It's in kit building by the way. Good luck, it's a great plane. After mine crashed and right away built an Astro Hog and it currently goes to the field with me almost every time. Also with a 72 Saito on it. Hoping to add floats to it soon and try if off the water.

Jim

They are great flying planes. Had one years back and just built another 2 years ago. Although I was satisfied with the original using an OS .91 FS I put a Saito 1.00 in the new one and it's a perfect combo (up here at 5400' elevation). Checked my notes on both builds and didn't see much as far as problems or signigicant mods. But like any bipe, pay close attention to alignment and incidences. Flying off paved runways I've never had a problem with noseovers.

Raydar,
Nice color scheme. Is that a paint job or covering. If it's covering what kind and color is it??

Great construction in this thread:http://www.rcuniverse.com/forum/m_84..._1/key_/tm.htm

I'm with raydar, I too built the kit as stock. I did use the DuBro landing gear, and mounted it in the stock location. Had a few noseovers when I first flew it, but a little tickling of the elevator when landing solved it. Take offs on mine are a little tricky also. But from what all I've read from other posters, most of them seemed to have the same issue. You will get a lot of attention at the field, since it seems not many folks assemble or build them. Just read and re-read the manual and you will have no problems,.

Cal

The only things I did extra were to make the fuel tank removable and using 4-40 pushrods instead of the nylon rods. If I recall correctly, I widened the hole in the bulkhead to be able to pull the fuel tank thru with the strapping tape I secured on to it. Mine came out heavy, but flies like a dream with the Saito 100. The stock landing gear is a little soft, but looks good all polished up. Taking off is easy, as long as you use the rudder and roll into the power smoothly and gently. If you hammer the power, you will have problems every time.

Built mine a few years ago,It was my second build also LOL,Go with the duel ailiron servos I did'nt n wish I did,Tank mod would b good also,flu great 1 click here n there n it flew great on maiden,I got a Thunder Tiger 61 on the nose!!!

I too will throw in a recommendation for the dual aileron servo mod. My brother and his brother-in-law each have a Hog Bipe, my brother's with a single servo and the other with dual. They both fly great but the dual servos provide for much better aileron response and precision.

Take your time with the wing incidence. The aluminum cabane struts (fuse to top wing support and alignment) and the interplane struts (wing to wing) are critical to the incidence. The cabane struts are very flexible. Take your time getting it right. Think that I spent literally hours making small adjustments, trial fit, test, adjust, fit test ....

Make duplicates of the interplane struts now. Don't rely on hobby shop 1/8" lite ply as it is wayyyyy too twisty. 3-ply plywood makes sense.

Once you get the cabane strut angles right figure out how to copy the "bends" just in case they get tweaked either in the hanger or at the field.

I'm with Augie - Saito 100 is really sweet. I'm at 5900 feet.

I also added a Fiberglass Specialties cowl - boring shape but nice finishing touch beyond the basic cowl cheeks.

Take your time and have fun with it ...