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  1. #626
    Mr. Mugen's Avatar
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    RE: Great Planes Combat Corsair and Mustang

    Can anyone answer the CG question 2 posts up?
    Everything electronic runs on smoke.....if you let your smoke out, it\'\'s dead!

  2. #627

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    RE: Great Planes Combat Corsair and Mustang


    ORIGINAL: Mr. Mugen

    Can anyone answer the CG question 2 posts up?
    Hi Mr. Mugen,
    The correct CG for the mustang is 3.1" from the leading edge at the wing root. Here's the GP website for confirmation. Have fun!
    http://www.greatplanes.com/techsuppo...a1475tech.html

  3. #628

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    RE: Great Planes Combat Corsair and Mustang

    I"m a little late to the Mustang discusion, but I too have the Mustang. Ah, but I'm the crazy one. I started off with an OS 32SX and Nelson Pipe. It flew SO fast that if developed flutter immediatley, although, it was wierd flutter. Typically, its a control surface. I didn't loose control of the plane at all, infact, It just slowed way way down. If I got off the throttle, the flutter sound would go away, so I'd nail it again. This time it would scream for about 3 seconds and then low frequency flutter noise quickly comes back.

    A buddy (TexasTanker) added landing gear and a tail wheel becuase he's a nice guy. That was a GREAT imrovement.

    I had some big issues with the cruddy covering job on this thing so I decided to do some major surgery. So far I've done the following:

    1. Completely stripped the wing and fuse (not tail feathers). I resealed the covering on the tail feathers.. I figured that wouldn't be fun to recover with all the push wires in place.
    2. Made a dual Elevator pushrod setup from 4-40 threaded rods.
    3. Made the Rudder pushrod a 4-40 rod.
    4. Remove the HS-85 Aileron servo and created servo bays in the wings. 2 HS-85's now. 1 for each little aileron.
    5. Cut the ailerons about 40% from the outboard edge.
    6. Removed the inboard portion of the ailerons and replaced with Aileron stock that I trimmed a little.
    7. Removed the "radiator" scoop. It's flimsy and unreinforced. One belly landing cracked it pretty bad.. It wasn't a hard landing either.
    8. Recovered the wing in 2 pieces (1 one top, 1 on bottom) pushing the covering into the now-shortened aileron hinges. This was to prevent highspeed air from getting between the aileron and the wing and causing control surface flutter.
    9. Cut the torque rod on the elevator since I was now using two pushrods.
    10. Reenforced one of the landing gear wires since it was wiggling...
    11. Covered the hole in the bulkhead that was behind the radiator scoop thingy.

    12. Took it to the airfield and prayed.

    The results are 18500 RPM on a OS 32SX with Nelson pipe on a 9x7 prop. It SCREAMS!!!!!! Unlimited vertical, OH... and we put a GPS inside to see how fast. 135mph!!!!

    This worked out great until my friends P-40 took a bite of my tail.
    You can see the GPS and pics of the plane on the thread in this forum:

    P-40 vs P-51
    P51 (32sx)
    P38 (.25FX-x2)
    Uproar (Magnum1.20)
    Kobra (46AX)

  4. #629

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    RE: Great Planes Combat Corsair and Mustang

    my greatplanes combat corsair ( http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXGJY8 )
    magnum 28 xls motor ( http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXTP68 )
    3 blade 8x6 mas propeller ( http://www.hobbycity.com/hobbycity/s..._propeller_8x6 )
    fox spinner nut ( http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXG944 )
    800 mah battery
    Hobbico Exhaust Deflector .20-.34 ( http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXL377 )
    pilot no 5 ( http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=6210&Product_Name=Pilot_Model_#_5_(45x25x40) )
    slicone tubing ( http://www3.towerhobbies.com/cgi-bin...?&I=LXK129&P=7 )
    for landing;
    Carbon Fiber Landing Gear 130mm ( http://www.hobbycity.com/hobbycity/s...ing_Gear_130mm )
    3 x 40 mm Wheel Shaft for Airplane (2pcs) ( http://www.himodel.com/plane/3_x_40_...lane_2pcs.html )
    Light Foam Wheel (Diam: 60, Width: 18.5mm) ( http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=5622&Product_Name=Light_Foam_Wheel_(Diam:_60,_Width:_18 .5mm) )
    2 piece 4mm whell shaft stopper
    grey color tape
    rudder and landing;
    one hextroni 9 gr servo for rudder ( http://www.hobbycity.com/hobbycity/s...ec_Micro_Servo )
    3mm stell wire
    Small Wheel (Diam: 20mm Width: 10mm) ( http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=5651&Product_Name=Small_Wheel_(Diam:_20mm_Width:_10mm) )
    Tail wheel mounts
    one tail whell stopper 3mm
    3 pcs AC Hinge L20*W15*H0.3 ( http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=8424&Product_Name=AC_Hinge_L20*W15*H0.3_(10pcs) )
    and epoksi,Ca,playwood(3mm x 50mm x 40mm),balsa 10x10mm (15cm) etc....

    redy to fly 1575 gr

  5. #630

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    RE: Great Planes Combat Corsair and Mustang

    for landing;
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  6. #631

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    RE: Great Planes Combat Corsair and Mustang

    rudder and tail landing
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  7. #632

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    RE: Great Planes Combat Corsair and Mustang

    rudder and landing two
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  8. #633
    mike early's Avatar
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    RE: Great Planes Combat Corsair and Mustang

    I have a Saito .40 and I am going to put it into one of these planes. I was going to get the Corsair, but the only other .25 combat plane at our field is the Corsair. So I will get one of the others so we can tell them apart if we ever fly them at the same time.
    Of those of you who have flown more than 1 of these Great Planes .25s, which do you prefer?
    Saito Club Member #578
    P-40 Brotherhood #62

  9. #634

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    RE: Great Planes Combat Corsair and Mustang

    Nicely done corsair. A shame about the landing gear though. Sorry to be blunt, but if these are for combat, as this section calls for, why put ugly ass landing gear on the plane? It otherwise spoils a beautiful look, and forces you to add a servo for rudder, adding weight and never needed except for takeoffs.

  10. #635
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    RE: Great Planes Combat Corsair and Mustang

    I've ordered the P-51
    Saito Club Member #578
    P-40 Brotherhood #62

  11. #636
    Mr. Mugen's Avatar
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    RE: Great Planes Combat Corsair and Mustang

    Well I just got done with a LG mod which does not stick down like traditional lg. I wanted just a protector for the valve cover and exhaust pipe. I am adding wing tip skids and calling it good. What do you's think?

    Kevin
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    Everything electronic runs on smoke.....if you let your smoke out, it\'\'s dead!

  12. #637
    mike early's Avatar
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    RE: Great Planes Combat Corsair and Mustang

    Ingenious!
    Saito Club Member #578
    P-40 Brotherhood #62

  13. #638
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    RE: Great Planes Combat Corsair and Mustang

    I had intended to mount my 4-stroke sideways, but there's not enough room on the firewall. Upright would ruin the entire look, sticking out of of the cowling. Inverted seems to be the way to go....
    Saito Club Member #578
    P-40 Brotherhood #62

  14. #639
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    RE: Great Planes Combat Corsair and Mustang

    According to the AMA: Models are to be scaled to a wingspan of no more than 48 inches and no less than 40 inches.

    3 of the 4 of the GP Combat planes are less than 40 inches....
    Saito Club Member #578
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  15. #640

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    RE: Great Planes Combat Corsair and Mustang

    You're right... but its a stupid rule. Having a smaller wingspan does not put a pilot at any advantage, rather its a disadvantage.

  16. #641
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    RE: Great Planes Combat Corsair and Mustang

    Probably yields a faster roll rate....
    Saito Club Member #578
    P-40 Brotherhood #62

  17. #642
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    RE: Great Planes Combat Corsair and Mustang

    And a faster fall rate...me and the P-51 are still hashing it out...
    Everything electronic runs on smoke.....if you let your smoke out, it\'\'s dead!

  18. #643
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    RE: Great Planes Combat Corsair and Mustang


    ORIGINAL: mike early

    According to the AMA: Models are to be scaled to a wingspan of no more than 48 inches and no less than 40 inches.

    3 of the 4 of the GP Combat planes are less than 40 inches....
    Combat in the US is governed/overseen by the Radio Control Combat Association (RCCA) rccombat.com The RCCA is the official Special Interest Group (SIG) The "Official" AMA event which is commonly known as 2610 is DEAD! The RCCA recognized the problem with having a specific scale and the new scale combat event is known as 2548. 2548 is currently an unofficial event as we "tweak" the rules before finalizing them as an official event. The RCCA and AMA have recently made SSC (Slow Survivable Combat) an official event. The rules of 2548 allows the modeler to build the airplane to ANY scale as long as the span is not greater than 48". This is because the vast majority of cuts are wing cuts and not prop cuts. A longer span is a distinct advantage. There is also a minimum weight, this is to make the airplanes fly "pursuit" type matches rather than "fur balls" and thus be slightly more realistic. A small model with a wingspan that is less than 40" and which still meets the minimum weight requirement would be a rock. There are no seriously competitive combat fliers in the US that use store-bought ARF's in competition. They are too expensive, and too fragile for "real" combat competition, but are fine for chasing your buddies around the park. There are several manufacturers of kits suitable for 2548 combat. They are listed on the RCCA website.
    Gary James
    AMA CD 68845, NMPRA 15I, RCCA #908

  19. #644
    draftman1's Avatar
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    RE: Great Planes Combat Corsair and Mustang

    yes, GP calls them "combat " planes but in reality, that class they are made for isnt flown. nobody flies these planes in actual sanctioned combat. mainly its a balsa thing. balsa against a combat plane has no chance in a midair. the gp planes are very nice and make great scale sport planes, I have a p-40 and it is a great flyig fun plane. a great and cheap way to get a nice scale plane. Im not sure but they are not even for 2610, I think they are a class before that. check out the RCCA if you are interested in combat
    RCCA #913
    building spads since 12-2007

  20. #645
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    RE: Great Planes Combat Corsair and Mustang

    RCCA Rules for 2548 World War II Scale Fighter Combat (Provisional) do not allow 4-stroke engines. .25 max displacement and 10-3 or 10-4 props. That pretty much excludes 4-strokes. I guess they are not the best choice anyways...but I have a 4-stroke in mine. I live in a rural area and there's no organized combat anywhere within 100 miles that I know of, so it's pretty moot.
    Saito Club Member #578
    P-40 Brotherhood #62

  21. #646
    draftman1's Avatar
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    RE: Great Planes Combat Corsair and Mustang

    if you can get some friends to get the same or simular plane, go at it and have some fun! the bad thing is, balsa doesnt do very well on impact with another plane. If you get to likeing combat, start looking at spads, battle axes or other dedicated combat planes. they will usually cheaper and more durable. its all about fun, right! just be carefull, it can be very addicting
    RCCA #913
    building spads since 12-2007

  22. #647
    mike early's Avatar
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    RE: Great Planes Combat Corsair and Mustang

    Maidened it today. First two attempts tried to hand launch it myself underhanded. 2nd one had a chance until it ran into the wind sock...whoops!

    Very impressed with the Mustang's durability. It took some hard hits and laughed it off.

    Finally got it flying when a bystander offered to launch it for me. Still hair-raising until it builds some speed, but 3 successful flights. Belly landings on grass no worries at all.

    Already starting to love it.
    Saito Club Member #578
    P-40 Brotherhood #62

  23. #648
    draftman1's Avatar
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    RE: Great Planes Combat Corsair and Mustang

    hand launching is pretty easy, grab the area infront of the canopy, a couple 3 clicks of up elevator, rev it up, a good underhand toss in a almost level but slightly up position. throw it and grab the stick. have fun!
    RCCA #913
    building spads since 12-2007

  24. #649
    mike early's Avatar
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    RE: Great Planes Combat Corsair and Mustang

    Changed the prop from 11-5 to 10-8. Added a rudder. Flies so very fast. Exhilarating.

    5 for 5 on hand launches from helper. Resigned to recruiting volunteers for launching. Might try to do it myself if I ever find myself at the club alone.
    Saito Club Member #578
    P-40 Brotherhood #62

  25. #650
    mike early's Avatar
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    RE: Great Planes Combat Corsair and Mustang

    Combat Mustang and Saito 40
    Saito Club Member #578
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