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Great Planes Combat Corsair and Mustang

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Old 08-16-2009, 10:13 PM
  #626
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Default RE: Great Planes Combat Corsair and Mustang

Can anyone answer the CG question 2 posts up?
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Old 08-17-2009, 07:41 AM
  #627
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Default RE: Great Planes Combat Corsair and Mustang


Quote:
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
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Old 08-17-2009, 12:25 PM
  #628
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Default 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:

[link=http://www.rcuniverse.com/forum/m_8993490/tm.htm]P-40 vs P-51[/link]
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Old 08-23-2009, 08:21 AM
  #629
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Default 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
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Old 08-23-2009, 08:29 AM
  #630
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Default RE: Great Planes Combat Corsair and Mustang

for landing;
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Old 08-23-2009, 08:31 AM
  #631
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Default RE: Great Planes Combat Corsair and Mustang

rudder and tail landing
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Old 08-23-2009, 08:34 AM
  #632
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Default RE: Great Planes Combat Corsair and Mustang

rudder and landing two
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Old 08-23-2009, 09:48 PM
  #633
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Default 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?
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Old 08-24-2009, 10:07 AM
  #634
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Default 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.
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Old 08-24-2009, 01:01 PM
  #635
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Default RE: Great Planes Combat Corsair and Mustang

I've ordered the P-51
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Old 08-29-2009, 09:59 PM
  #636
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Default 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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Old 08-29-2009, 10:13 PM
  #637
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Default RE: Great Planes Combat Corsair and Mustang

Ingenious!
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Old 08-30-2009, 06:42 PM
  #638
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Default 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....
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Old 09-02-2009, 12:02 PM
  #639
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Default 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....
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Old 09-02-2009, 04:05 PM
  #640
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Default 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.
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Old 09-02-2009, 04:39 PM
  #641
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Default RE: Great Planes Combat Corsair and Mustang

Probably yields a faster roll rate....
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Old 09-03-2009, 12:56 AM
  #642
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Default RE: Great Planes Combat Corsair and Mustang

And a faster fall rate...me and the P-51 are still hashing it out...
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Old 09-03-2009, 07:50 AM
  #643
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Default RE: Great Planes Combat Corsair and Mustang


Quote:
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.
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Old 09-03-2009, 10:44 PM
  #644
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Default 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
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Old 09-04-2009, 01:15 AM
  #645
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Default 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.
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Old 09-04-2009, 08:07 PM
  #646
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Default 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
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Old 09-04-2009, 09:03 PM
  #647
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Default 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.
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Old 09-05-2009, 03:54 PM
  #648
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Default 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!
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Old 09-05-2009, 05:58 PM
  #649
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Default 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.
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Old 09-09-2009, 05:17 PM
  #650
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Default RE: Great Planes Combat Corsair and Mustang

Combat Mustang and Saito 40
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