New Hog Bipe
#1
Thread Starter
Senior Member
Finished the Hog Bipe last night. And don't it figure, we are in the middle of a snow storm here.
Specs:
1. Built stock with re-inforcement in all the usual areas.
2. Thunder Tiger .91 4 stroke.
3. (4) Hitec hs475 servos on controls, hs300 for throttle.
4. Covering is 21st century fabric, trimmed in paint and ultracote.
5. Sullivan tail wheel bracket.
Can't wait till spring........
Specs:
1. Built stock with re-inforcement in all the usual areas.
2. Thunder Tiger .91 4 stroke.
3. (4) Hitec hs475 servos on controls, hs300 for throttle.
4. Covering is 21st century fabric, trimmed in paint and ultracote.
5. Sullivan tail wheel bracket.
Can't wait till spring........
#6
Thread Starter
Senior Member
PikeBishop,
The first time I tried to find the balance point was just after I covered it and before I put in the controls. It was right on the money for the foreward balance point.
At that point I mounted the servos center wing (just aft of balance) and the battery under the tank. There is a LOT of room under the tank so I can move the battery forward and back to adjust the balance. No weight added.
The tires are the called for 3", I used great planes low bounce and a 1' tailwheel. I mounted the wheels with almost half sticking out as I fly off a grass field. I think 3 1/4" would have fit but no larger.
The timing could have been better, we are in the middle of a big snowstorm here (rhode island), almost 2 feet aready. Guess I wont be flying the hog for a few weeks...........
The first time I tried to find the balance point was just after I covered it and before I put in the controls. It was right on the money for the foreward balance point.
At that point I mounted the servos center wing (just aft of balance) and the battery under the tank. There is a LOT of room under the tank so I can move the battery forward and back to adjust the balance. No weight added.
The tires are the called for 3", I used great planes low bounce and a 1' tailwheel. I mounted the wheels with almost half sticking out as I fly off a grass field. I think 3 1/4" would have fit but no larger.
The timing could have been better, we are in the middle of a big snowstorm here (rhode island), almost 2 feet aready. Guess I wont be flying the hog for a few weeks...........
#7
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From: Palm Desert,
CA
Just started flying the one I finished 6 months ago. To be blunt, I'm impressed.
I usually build and fly Stearmans, and I've done one Ultimate, but the Hog flew right off the boards.
Power is a .61 pumped K&B twister with a Mac's tuned muffler. 12, 500 RPM on a 12/6 2-blade and 12, 200 on a three blade. It like more air flowing over the surfaces.
A note of caution with those wing hatch mounted servos - I had one of mine come off twice - the lite ply didn't hold the wood mounts (split laminations) so I'm going to epoxy the servo sides directly to the hatches.
Another curious thing is it likes full throttle snaps, but not regular snaps.
I usually build and fly Stearmans, and I've done one Ultimate, but the Hog flew right off the boards.
Power is a .61 pumped K&B twister with a Mac's tuned muffler. 12, 500 RPM on a 12/6 2-blade and 12, 200 on a three blade. It like more air flowing over the surfaces.
A note of caution with those wing hatch mounted servos - I had one of mine come off twice - the lite ply didn't hold the wood mounts (split laminations) so I'm going to epoxy the servo sides directly to the hatches.
Another curious thing is it likes full throttle snaps, but not regular snaps.
#8
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From: md.
thanks for the in depth info, will defenitly build this. we are buried here in md also I could get out ok in the fwd but some fool put his accord in the road sideways so I can't get out anymore the accord will certainly keep the plow from coming up the road also . some people really don't have enough sense to be operating machinery above a couple horsepower.
#9
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From: Murfreesboro,
TN
You did a beautiful job, sir! I'm impressed. I love the Hog, but mine plowed in kind of hard last summer... Came out of a split "S" at 10 ft coming at me. No perspective on speed and it bellied in pretty hard. Enough to warrant a maj. reworking of most of the plane. I think mine was about 10-12 yrs old, though, and I'm about the 6th owner. Found it on Fubar Hill site after I bought it, the original owner apparently was in Florida. I like your wing mounted servos. I put 2 HS300's in mine at the start, but mine were center mounted as per plans. I did put 605 BB servos on rud/elev, though. May do a pull pull rudder after the rework. I'm also making the rudder a little larger, the original size was kind of ineffective. It'll be about 10% larger. Should chuck it around pretty nicely with that! Once again, good job. You should (and probably are) proud. Craftsmen are to be applauded!
#10
Lovely Hog Bipe! I like the trim over the yellow, looks great and should be easy to see.
I would make one suggestion, though, that has proven to be worthwhile on my HB. Most everyone else I know that's built one has made this same mod. With the gear in the stock location, as I see yours is, the plane will have a bit of nose-over tendency on grass fields that can be aggravating. I moved my gear forward about the width of the gear (1 to 1.5"). This improves ground handling considerably and is easy to do. Just glue another piece of 1/4" ply just forward of the stock piece, add reinforcement, and relocate the gear. Cover over the old holes and you're in business.
Enjoy your HB! They're great flying birds!
I would make one suggestion, though, that has proven to be worthwhile on my HB. Most everyone else I know that's built one has made this same mod. With the gear in the stock location, as I see yours is, the plane will have a bit of nose-over tendency on grass fields that can be aggravating. I moved my gear forward about the width of the gear (1 to 1.5"). This improves ground handling considerably and is easy to do. Just glue another piece of 1/4" ply just forward of the stock piece, add reinforcement, and relocate the gear. Cover over the old holes and you're in business.
Enjoy your HB! They're great flying birds!
#11
Thread Starter
Senior Member
Thanks for all the kind words guys. This is my third kit and I think my best work. It amazing how much you learn from kit building, each one gets better. Can't wait to show it off in person at my flying field, alas the weather here in new england has not been good this winter.
Eric over at Fubarhill was kind enough to post some updated pics over at his site. He's a heck of a nice guy, people like him, those here and the guys at my club are what makes this so addictive for me.
Curt, I will move the landing gear later if need be, I usually snap off the gear at least once on my planes anyway. I disposed of the 6/32 steel bolts on the gear in favor of 10/24 nylon for this build. I'll have to give it a try, all my planes to date - even my trainer - have been taildraggers. You have to keep the ground speed up on them.
This was also my first use of 21st century fabric on a model, I've always used ultracote in the past. I must say, I was impressed by the stuff, I won't shy away from it in the future. I've found the only thing you have to be more accurate with are the seams, they have a tendancy to show up more, with UC you can hide them with a little extra heat. Also the seams will pull if you put heat on them, a clean rag or glove is a must for the edges and it takes a little longer to apply.
I'll be sure to post a follow-up afer the maiden flight, with pictures. I also just finished a re-build of my four star 60 after stuffing it in, new firewall with a home made cowl, same engine mounted sideways. To date that's my favorite, on high rates it's almost a nimble as my US40 but just sounds so much better!
Here's a picture of my field, taken from one end of the pit area. Thanks again!
Eric over at Fubarhill was kind enough to post some updated pics over at his site. He's a heck of a nice guy, people like him, those here and the guys at my club are what makes this so addictive for me.
Curt, I will move the landing gear later if need be, I usually snap off the gear at least once on my planes anyway. I disposed of the 6/32 steel bolts on the gear in favor of 10/24 nylon for this build. I'll have to give it a try, all my planes to date - even my trainer - have been taildraggers. You have to keep the ground speed up on them.
This was also my first use of 21st century fabric on a model, I've always used ultracote in the past. I must say, I was impressed by the stuff, I won't shy away from it in the future. I've found the only thing you have to be more accurate with are the seams, they have a tendancy to show up more, with UC you can hide them with a little extra heat. Also the seams will pull if you put heat on them, a clean rag or glove is a must for the edges and it takes a little longer to apply.
I'll be sure to post a follow-up afer the maiden flight, with pictures. I also just finished a re-build of my four star 60 after stuffing it in, new firewall with a home made cowl, same engine mounted sideways. To date that's my favorite, on high rates it's almost a nimble as my US40 but just sounds so much better!
Here's a picture of my field, taken from one end of the pit area. Thanks again!
#12
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From: Granite City,
IL
Ive got a Hog Bipe hanging in the basement.......I bought it from someone and have not flown it yet.......I think this one only has one servo on the ailerons? Is this possible? I definitely wanted to do something different before attempting to fly it......I had no plans or anything .......What is the average finished weight of this plane? it seems a bit heavy......
Thanks
Ex......
Thanks
Ex......
#13
Thread Starter
Senior Member
Ex,
The instructions claim 6 1/2 to 7 1/2 lbs, but I'd say with the cloth covering and the 91 it's got to be 8 pounds. And yes, it can be built with either 1 or 2 aileron servos, the mod for 2 is an add-on to the kit, in a seperate bag. I opted for 2, both hi-torque as the $$ difference was not much and I like the security. I stripped one on my 4* once and was able to land it anyway.
Man, it's snowing over here again, when is winter gonna let go?!
The instructions claim 6 1/2 to 7 1/2 lbs, but I'd say with the cloth covering and the 91 it's got to be 8 pounds. And yes, it can be built with either 1 or 2 aileron servos, the mod for 2 is an add-on to the kit, in a seperate bag. I opted for 2, both hi-torque as the $$ difference was not much and I like the security. I stripped one on my 4* once and was able to land it anyway.
Man, it's snowing over here again, when is winter gonna let go?!





