RE: GP Super Stearman  
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    • All Forums >> RC Airplanes >> ARF or RTF >> RE: GP Super Stearman
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    RE: GP Super Stearman - 5/24/2004 4:29:59 AM   
    Cristianomc


     

    Posts: 45
    Joined: 5/13/2003
    From: Bauru, BRAZIL
    Status: offline     		Is the Stearman full acrobatic (to do hammer-heads, snaps, tambles...)? Does it fly slow?
    I have a Saito 150.

    Thank you all!

    (in reply to builder jim)
           Post #: 101

    RE: GP Super Stearman - 5/26/2004 1:20:29 AM   
    crashland 73



    Posts: 795
    Joined: 9/10/2002
    From: Oak Grove (in the Ozarks), AR, USA
    Status: offline     		Got mine done and just have to set the throws and balance it. Just waiting on a good calm day for a maiden flight. Lord willin take it home together in one piece.

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    < Message edited by crashland 73 -- 5/25/2004 7:23:50 PM >

    _____________________________

    If you are born once, you die twice.
    If you are born twice, you only die once.

    (in reply to John_RedSox)
           Post #: 102

    RE: GP Super Stearman - 5/27/2004 12:48:18 AM   
    builder jim



    Posts: 239
    Joined: 1/1/2003
    From: westerville, OH, USA
    Status: offline     		Ive decited to order one today, but would like to know the problems involved with installing a saito 150 ? or if theres any problems, was thinking on the line of fuel siphoning, tank height, changes, servo mounting,ect also the balance, is it nessary to add the weight to the nose? I have the saito 150 with slimlines smoke muffler for inverted mounting .really want to thank all of you for your contribution to this thread its great to read about others and their planes and the engineerint that goes into them and how iteams are over come with the rewards of flying them thanks .

    _____________________________

    jim

    (in reply to crashland 73)
           Post #: 103

    RE: GP Super Stearman - 5/27/2004 2:45:42 AM   
    crashland 73



    Posts: 795
    Joined: 9/10/2002
    From: Oak Grove (in the Ozarks), AR, USA
    Status: offline     		Mine didnt nead any weight added. And I put a G26 and my battery and reciever were on each side of the servos and stuff. I would figure that you would need a bit of weight. It says with an OS 120 you need about 18oz of weight give or take. Mine balanced perfect with my engine. No doubt that 150 will do the job though.

    _____________________________

    If you are born once, you die twice.
    If you are born twice, you only die once.

    (in reply to builder jim)
           Post #: 104

    RE: GP Super Stearman - 5/29/2004 12:26:43 AM   
    Rollie-RCU


     

    Posts: 11
    Joined: 6/19/2003
    From: Benton, ME, USA
    Status: offline     		A friend of mine has one of these GP Stearmans and he is installing a O.S. 1.60 2 stroke in his. Its not quite ready to go but if anybody is interested I will leave a post here to let everybody know on how it flies... Yes he did have to build out the firewall a little but that was not problem.

    (in reply to crashland 73)
           Post #: 105

    RE: GP Super Stearman - 5/29/2004 5:45:17 AM   
    RCJake-rcu


     

    Posts: 0
    Joined: 4/11/2003
    From: Corvallis, OR, USA
    Status: offline     		Hi All,

    I finished one of these Super Sterman Bipes for a customer last week. A Saito 150 was used, Hitec 635 bb servos for all control surfaces, slaved the top wing ailerons to the bottom, Hitec 425bb for the throttle, Hitec receiver, 1650 Ni-mh receiver battery, Cermark HD switch and no weight was required to attain the recommended balance point. I used an incidence meter to set up the top wing since I noticed that the top wing would "rock" while I was trying to mark & drill the mounting holes in the fuse for the cabanes. While the rivet/panel line decals took some time to cut out and apply, they sure enhanced the look of the Stearman. I did add the simulated flying wires as per the instructions which helped the look a lot.

    The test flight was uneventful. The take-off was straight down the runway, the tail lifted after a short run and the 150 had plenty of power for the Stearman. Since this was not my bipe, I just trimmed it out for straight & level flight and landed after a few laps around the field. The landing was great...it just came in for a nice wheel landing, then the tail settled and I taxied it back to the flight station. I think that the new owner will let me wring out the Stearman a little in the near future and then I will let you guys know how this one does.

    Great Planes certainly did their homework on this bipe...it builds easily, the instructions are wonderful and it flies great. Also, it is beautiful on the ground & in the air!!!

    Jake

    (in reply to Rollie-RCU)
           Post #: 106

    RE: GP Super Stearman - 6/2/2004 11:56:21 AM   
    builder jim



    Posts: 239
    Joined: 1/1/2003
    From: westerville, OH, USA
    Status: offline     		rcjake-rcu, thanks for the info on your stearman, very informative . Ive decited to run the saito 150 inverted, Ill run hitek 625,s on the controls , cept the throttle, standard on that, hope this flys like a two wing cub, , thats about my speed, any other info that comes will be welcomed, this plane is not drawing the the responce that others have brought on rcu, wonder why? hanger nines large 182, ect. well see ,hey thanks alot for the information hope the owner lets you wring it , out , will be watching for your next report, jim

    _____________________________

    jim

    (in reply to RCJake-rcu)
           Post #: 107

    RE: GP Super Stearman - 6/4/2004 1:24:42 AM   
    tlrascal


     

    Posts: 114
    Joined: 7/30/2002
    From: Lavaca, AR, USA
    Status: offline     		I have finished building and flying the GP Stearman and will share some of my thoughts and experiences. I purchased a built Stearman of unknow origin a few years ago and really enjoyed flying this thing for several flights. It met an untimely demise when I flew the battery out of it. The old Stearman flew on it's own in a big circle for about 5 minutes losing altitude with every circuit until it crashed full speed into the ground. I haad intended to repair this plane until the one from GP came along. I operate a hobby shop in Van Buren Arkansas.

    When I received this ARF I was extremely pleased with what I saw. I havew been modelling for 50 years and I can't build one that nice. The finish on the landing gear and cabanes was superb, flawless gloss white better than I have seen on any model. I don't know if it was powder coated or what but it is perfect.

    The parts fit was excellent, I mean excellent for all parts. The construction of the plane took about 12 hours. Wing alignment was eezzzzeeeeeee. The wheel pants and engine cowl eeezzzeeeeeee. Everything fit and everything worked as it should. I installed an new but older version of a YS 120, before the air chamber. I have read the comments about the spinner not fitting the props and the hinges etc. and that because your trying to use too big of an engine and prop. Use what the paid engineers designed this plane for.

    I opted for the four aileron version and soldered the two elevator wires together instead of the clamp but this was the only deviation from the plans. This thing is gorgeous when done and now for the flying. The YS has a tick over idle and I mean slow to the tune of less than 1000 RPM and instant throttle response. I used no additional weight and didn't even put in the weight box. I might haave been a tad rearward on the CG but not much if any. It required just a little down trim to keep from climbing and it flies comfortably on about 1/4 throttle. loops, rolls, stall turns great. I have only flown it once and then a short flight. This thing is a total winner in my books.

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    (in reply to builder jim)
           Post #: 108

    RE: GP Super Stearman - 6/4/2004 1:56:44 AM   
    dhillfolk


     

    Posts: 63
    Joined: 10/30/2002
    From: Port Crane , NY, USA
    Status: offline     		Great review & pics !

    _____________________________

    Bob

    (in reply to tlrascal)
           Post #: 109

    RE: GP Super Stearman - 6/4/2004 2:30:58 AM   
    codimasta


     

    Posts: 272
    Joined: 1/31/2002
    From: Las Vegas, NV, USA
    Status: online     		Well, I think that it is a great kit...with one exception, my top wing had a bow in it. The Right Top panel was straight, however the Left Top panel had a bow in it, at about 31 inches from the center of the wing to the tip....1/4 inch bow. I called Great Planes, their answer was to send the
    wing back so that they can check it...I wish I would have found this problem sooner...the panels
    were connected and the ailerons hinged. I had to cut the wing in two to ship it back...what a bummer this delays the whole thing for abouyt 2 to 3 weeks. They need to see if it falls under the warranty...why would I send it back unless it was flawed...
    Received a postcard from Great Planes...MY WING IS BACKORDERED !!!

    < Message edited by codimasta -- 6/14/2004 2:43:34 AM >

    (in reply to dhillfolk)
           Post #: 110

    RE: GP Super Stearman - 6/6/2004 1:11:03 AM   
    catspaw


     

    Posts: 57
    Joined: 12/31/2002
    From: stoughton, WI,
    Status: offline     		I'm trying to finish mine up, break the engine in, and get some test flights in before our big bird fly-in next weekend.

    I'm using a Saito 150. I had to notch the firewall to clear the muffler. I also must have bumped the cowl and ring when I was tack gluing it, turned out to be off center. A coupleof shims on the tabs took care of that!

    I also used the stock spinner. Being a machininst, I opened up the backplate hole in a lathe to fit the 150. The opening actually fit an APC 16x8 prop, although I'll try a woody for looks.

    John

    (in reply to codimasta)
           Post #: 111

    RE: GP Super Stearman - 6/7/2004 5:50:03 PM   
    catspaw


     

    Posts: 57
    Joined: 12/31/2002
    From: stoughton, WI,
    Status: offline     		Well, I give up! How do I get the linkage for the 2 servo wing setup to get the correct movement on the ailerons? I tried moving the top arm back like the RC report reviewer did, that didn't help. I can get correct movements in one direction, but it always binds in the other directions. help?

    John

    (in reply to John_RedSox)
           Post #: 112

    RE: GP Super Stearman - 6/7/2004 6:54:56 PM   
    RCJake-rcu


     

    Posts: 0
    Joined: 4/11/2003
    From: Corvallis, OR, USA
    Status: offline     		Builder Jim,

    I did not need to make any mods to get the Saito 150 installed in the Super Stearman and no weight was needed to get the bipe to balance. The 150 supplies plenty of power and yesterday we had a flight that lasted 12 to 15 minutes with the stock tank and still had fuel left. Not too bad...

    I did get to do a few aerobatics with the Super Stearman this week-end, but just did rolls, loops and stall turns... it performed all with ease. The rolls took about 3 seconds to perform with full deflection at the factory recommended low rates. Spins are very nice and the Super Stearman sure looks great on those low fly-bys!

    This ARF from Great Planes is their best yet. Keep up the good work, GP!!!

    Jake

    (in reply to catspaw)