rcuser002

My Feedback: (12)

Friends,

Anybody have one of these yet?

http://www.greatplanes.com/airplanes/gpma1472.html

Seems like they came out just in time for the holidays.

Doesn't have the scale "wing fairings" ...either does the 25 size GP Spitfire.

It's got the heaviest wing loading of all compared to the 3 other .Great Planes 25 size combat ARFS.

root

Jinxx

My Feedback: (2)

I picked one up last week and just started building it last night. Looks nice and everything feels solid. I'm a slow builder/assembler so i probably won't fly it until next week Saturday. I have no experience with the other GP combat planes but I see them fly at my field every weekend.

jmohn

If you don't need the landing gear, check out the Ripmax Spitire and P51. They are great flying planes and are very fast with a Eflight 25 motor in them. A friend of mine has the GP P40 and loves it. It flies very nice, but not as nice as the Ripmax ones

Pappy-86

My Feedback: (6)

I got one should be finished tomorrow or the next day will post pictures when I'm done only mod I made was a tail wheel and I went with the EP motor and speed controler GP recommended. I also sprayed the entire plane with dull coat didn't like the shiny ultra coat.

rcuser002

My Feedback: (12)

Cool........Tell us any "crimps" in the instructions to be aware of.

root

Pappy-86

My Feedback: (6)

Well finished the plane last night followed the instruction manual and every thing went together like it said. Wing halfs fit fine tail section fit like it should. I used hitec HS-81MG servos all around had to make a little notch for the wires to fit in outher then that they slipped right in. I powered my P-40 with the Rimfire 35-30-1450 and a Greatplanes 45amp speed controler. This set up gave me more then enough power. The maiden flight was perfect had to give 2 clicks down and 4 clicks left aileron. The plane is a great little plane flys well loops and rolls like scale and easy to land. I for one am sure glad Great planes jumped on the band wagon with these great EP warbirds.

150flyer

I built one last week and already have about ten flights under my belt. It's equipped with an OS .25 FX and Hitec HS-81MG servos. I fly off a grass strip and my only complaint is the typical nose over during taxi. Once the throttle is set for take-off power and you have some up elevator, there are no problems. I did go to larger wheels (2.25) and that has helped. If you fly off a hard surface, you will not have any issues with nose overs during taxi. I also added a tail wheel instead of using the supplied skid.

I set my radio with three rates. My high rates are max throw and are used for take-off and landing. My medium rates are the manuals recommended high rates which is great for general aerobatics. The recommended high rates allow you to spin and tumble the plane without any tip stalls with full up elevator and full throttle. The recommended low rates are very docile and are good for pylon racing and high speed passes. This plane even knife edges with stability at high speed.

The supplied fuel tank gives my about a ten minute flight at full throttle. It dead sticks nicely so I usually run it out of fuel on every flight.

Assembly is a breeze. It went together in about five hours with absolutely no problems. I could find no mistakes in the manual.

I can't imagine a better flying small scale plane. It's a joy to fly and is definitely a permanent model in my hangar.

rcuser002

My Feedback: (12)

What % fuel and what size prop are you using with the 25fx?

What do you "guestimate" your top speed is on a straight away pass with a WOT?

root

150flyer

I'm using Cool Power 15% and an APC 8 x 6 prop. My engine is still new so I'm running it rich, however, it seems VERY fast. Once the run in is complete, I will install an Ultra Thrust muffler for an extra several hundred rpms.

I'm not sure what you mean by "WOT".

rcuser002

My Feedback: (12)

Sorry,

WOT means Wide Open Throttle.

How many feet do you have to keep her on the ground before ishe has enuf lift to take off w/out tip stalling?

root

150flyer

Take off roll is no more than 20 feet.

Pappy-86

My Feedback: (6)

For those running electric power and taking off on hard surface it is a very easy plane to ground control I ease on the throttle little at a time slowly building up speed take up about 200 feet of runway and lift off ever so slow to get a good looking scale take off and running a 2100 mah battery with throttle control have my timer set for 12 min and have never went dead stick. I only use single rate try to keep it as close to scale as I can nothing worse to me then a warbird making 3d turns. It is close to the same as the Great Planes combat Corsair the p-40 is not as heavy making it faster over all I like the corsair better but the P-40 is by all means a nice plane.

150flyer

I feel the same way about a warbird powered by anything other than an internal combustion engine.

Pappy-86

My Feedback: (6)

To each there own Marry Christmas and lots of Happy Flying

150flyer

I installed a Mac Muffler and began leaning the engine today. The plane was already fast but the speed increase from the new muffler was significant. I lost a few minutes per flight however, with a new average of about 8 minutes to dead stick. This is flying at full throttle.

When I first purchased this small plane, I figured it would be good for fairly calm days. Today the winds were about 15 mph but there were no problems. Some of my larger planes require more effort to handle in the wind.

KWJ48

I just purchsed and assembled this plane. I was wondering if anyone else had a problem with it being very tail heavy when balancing at the recomended CG?
I'm using the recomended rimfire motor, but using a 2100 lipo.

rcuser002

My Feedback: (12)

My buddy got one for Xmas and has a O.S.32sx in his and he put a 4.8V 600 mAh battery in the rear by cutting a hole in the fuse behind the wing bolts...the 32sx wieghs in at around 10 ounces and the 4.8v is about 3.3oz....hope that helps.

He also only dialed in around 1/8th aileron throws and didn't5 have enough to rescue the left torque at take off and cartwheeled...why only 1/8th I'll never know...he admits not knowing why either....brainfreeze most likely....

Jinxx

My Feedback: (2)

Mine came out nose heavy for some reason and I had to add 1.5oz to the tail (put it on the tail skid). I built it without landing gear or a rudder servo. I may play around with battery placement to see if I can lose some of the lead. I'm using an OS .25FX motor with a Master Airscrew 9x4 prop and the plane rips! I'll be adding a mousse can muffler later and intend to start flying combat in March. I'm really happy with the way the plane handles. I changed the high & low rates a little, per the recommendations of my friend/LHS owner who maidens all my planes - he felt there was not enough elevator on low rates and too much on high rates.

150flyer

I also had to add about one oz. to the tail. I found it flew better with the CG at about 1/4 inch aft of the recommended. Made landing and take-off easier.

KLF1292

Has anyone tried to put an O.S. 30 four stroke on this plane? Would it be enough power? That particular engine looks to be slightly over a half oz. heavier than the the O.S. 25 (including mufflers).

cosmo64

I just maidedned mine over the last weekend, Have a OS 32 S---Was way impressed very fast and on rails!!. We will have a spitfire version with an OS 30 4C ready to fly soon--I will let you know how it goes

KLF1292

I bought the Spitfire version before the P-40 version. The Spit has a Thundar Tiger 25 on it and I've flown is a few times (had to repair the LG). It didn't feel overly fast with the TT but that engine also has a little less power than the OS 25 FX. Could have also had a little to do with the 1/2" of prop I lost on the maiden with the prop striking the runway just before takeoff. What was a 9X6 became a 8.5X6. The nose was also heavy even after adding 1.25 oz of lead to the tail. A little hard to slow it down for landing. I've repositioned the battery to a spot just above the servo tray using some mounting rails and ply from the electric setup materials and dropped .25 oz from the tail. It balances perfectly now at the recommended CG.

The Spit version looks to be a little heavier than the P-40. The OS 30 4C also doesn't have as much power as the OS 25FX but is similar in weight. IF the OS 30 4C would be a match for either, it will likely match better to the P-40.

I went ahead and bought the O.S. 30 4C and have it installed on the P-40. The CG is 1/8" aft of the recemmended 1 1/2". Should help to slow it down a little on landings. All that remains is the maiden.

Any suggestions based on your experience with the P-40?

cosmo64

I found the control throws to be perfect as set up per the instructions. I plan to add a tail wheel, ground control is tuff with the skid, The landing gear are great but....If you drop it in at all it bounces pretty good but does not seem to nose over. I did have to add 1 oz. to the tail with my OS 32 to get it to balance, I am running a DX-7 6000 series receiver and all HS-81's and a small battery, My over all weight was right in the middle of the listed. Good luck on the Maiden!!!

borisp

Guys,

Would OS .15 LA be enough for this bird? Any problems with CG in that case? I know from personal experience GP Combat Corsair is overpowered even with OS .25 FX...

Thanks.

tiger650

My Feedback: (22)

Does anybody have any more experience with the OS 30FS 4 stroke? I really like the sound of the 4 stroke and the weight looks to be identical to the OS 25SX.