Is it really necessary to add ailerons on the Top Wing on the Sig Hog Bipe?

Also, is an O.S. 90 Surpass 4 stroke too much power for that plane compared to putting an O.S. 70 Surpass 4 stroke on it?

Please add pics here if you have the Hog Bipe for me to see or you can email me at [email protected] with any comments you may have.

Thank you,

Big Dan

I fly my Sig Hog Bipe with a Saito .91 and it gives it plenty of power, though it's certainly not over powered.

Why would you not want ailerons on the top wing? That's what's going to make it perform like a bipe. Servos are only needed on the bottom wing. One servo on each side recommended.

I fly mine with an OS 91 FS. Wouldn't want anything less. Yes definitely do both sets of ailerons and a servo on each side of the lower wing. I also added an extra 1/2" to the elevator and the rudder. Move the landing gear about 1/2" forward of the stock location to cut down on the tendancy to nose over.

Thanks for the advice....

At the moment I'm trying to get my sig astro hog built. Sticking an os 70 surpass on it. Didn't know I'd need a chainsaw to build it. First sig kit I have ever built. The Hog Bipe will be my next project. Hope it goes smoother than the astro hog.

I was just wondering if an os 70 surpass would be enough power for the bipe. Looks like I'll need the 90 surpass from some threads I read.

thanks

I found the build of the Hog Bipe to be smooth and straightforward. Mods as suggested by JimT are all a good idea.

I also found that I needed to add right thrust and down thrust to the engine mounting. Of course, your mileage may vary on these.

You may want to visit: http://www.fubarhill.com/ to see what others have done. Go to the section on "Current planes > Sig Hog Bipes"

Saito 100 on mine and it's just right.

Hows that thing deadstick there WCB


guess who?

hehehehehehe

[sm=bananahead.gif]

I would not recommend a 70, I'm running a 100 Saito and it flies very nicely. I can't imagine you would have too many problems putting it together, just follow the excellent instructions. Mine went from box to field in 7 days.

UPS delivered my Hog Bipe yesterday. I'm leaning toward a TT 91 since I have had such good luck with my three TT 46 Pro's, but I understand the TT 91 is a bit heavier than most 4 strokes of its size. What's the balance situation on the Bipe? Does it tend to build tail heavy or nose heavy? Also, Tower Hobbies suggests higher torque servos for the rudder and elevator, but not for the ailerons (which surprises me since the instructions call for one servo for all four ailerons). Anyone have any experience in that regard?

I have a hog bipe with a 91 magnum and was wondering if anyone has tried a RCV 91 great 4 stroke sound and small in height , It would fit well under a cowl any opinions ?

I used a Saito .91 and had to put the battery under the fuel tank, and the receiver just behind on the other side of the bulkhead to get proper balance. Can't see that you'd have an problem with a heavier engine.

Used standard servos for ailerons, one in each lower wing; high torque for the rudder and elevator. Flies great.

Just started building my Hog Bipe, The instructions have not been updated, Mine came with another sheet and a kit for mounting two servos in the wings. I also started mods on mine, Moved the gear forward and angled them slightly forward and made a hatch to get the tank out without having to pull the whole plane apart. Using a Saito 100 in mine too. I'll get some pics of the mods tommorow, It's at my friends house. We are both building one and this is his first kit so I'm helping him along. Great kit too.

Caution on that additional sheet. In my kit that sheet appeared at first to be full size, but it was not. So, use it for directions, but not for direct measurement.

I built mine with a TT .91 and had no balance problems. Built it stock and balanced it the the battery. Good match with a 13X8 and much faster than I expected.

bigdanusa, check out my home page and gallery, for a hog bipe "bashed" into a late curtiss hawk look alike. has a saito 91 which is just enough, ailerons top and bottom using 2 futaba 3004 servos and with a t6xa tx i get four, countem four, flaps. makes for some interesting landings. oh, prop is a 14 x 8 master airscrew.
also in my gallery is an astro hog with 3 extra rib bays added to each side of the wing. also a saito 91 up front.,and full flaperons, man what a floater, this thing does not want to land, with about 30 degrees of flap. mike

I've seen a number "hog Bipes" with cowl'd front ends.. Anybody done this and what or who's cowling did you use???

Mine has a Evoloution 15cc gasser in it, flies great

Richard

I made my own cowl for my plane. Styrofoam mold covered with fiberglass and painted.


carl

Check out the link to fubar hill above. You will see several with cowls. I think some say where they got them.