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RC Model Manager
Spitfire hires
 
Model nameName/Designation of the model.
:  
  Spitfire MK9 EP50  
 
Model ManufacturerModel Manufacturer
:  
  Kyosho  
 
Model typeType of the model, depending on propulsion and form.
:  
  Plane  
 
Model specialsSpecial designation of the model
:  
  Warbird  
 
Model sizeModel wingspan for planes, rotor-length for helicopters, and chassis width for
quadrocopters
:  
  1440 mm  
 
Model weightWeight - ready to fly incl. Batteries
:  
  2600 g  
 
First service dayFirst active service date
:  
  2009-06-07  
 
Model End of LifeEnd of Life of the model. Usually this is the case when it crashed and was not
put back in shape.
:  
  2013-07-13  
  Link to Manufacturer page:    
www.kyosho.comPopup: https://www.kyosho.com/eng/products/rc/detail.html?product_id=103647
 
  Comment on Model

Analysis has shown a bad timing in the ESC (Firmware bug, worked with the ESC Manufacturer to identify it by providing logs, data and movie materials).
What happened is that during a windy day, strong side-wind were one required full power to the engine to lift-up, the ESC and Engine got out of Sync blocking the Engine several times. The 3rd time, recovering the plane was not possible anymore.
It was the first total loss, actually even the first crash I had in the last 15 years.
R.I.P.

 

Blog content
Build Blog - Spitfire EP50 from Kyosho  
Posted by smurphy on Sunday, 7 June 2009  GMT
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Spitfire

 As an absolute fan of WarBirds of WorldWar II - I was wondering which WarBird to buy. Time being an important factor for me (Family & Job), I decided to go for a ARF (almost Ready to Fly) bird from Kyosho. Notably - the Spitfire EP 50 hit my eyes.
I admit - I would have prefered the Focke Wulf FW190, however this kit is supposed to hit the shops in August 2009 - but that is in the middle of the actual Flying period. However - the spitfire was also a bird I wanted to have some day - so - I did just invert the order, still hoping to get the Focke Wulf FW190 sometime in the future though.

It took me about 2 weeks to decide on the engine and components to be build into. The plan was to have a powerfull engine coupled with decent electronics. With 28 Years of flying experience with RC airplanes, I noticed that saving on the wrong end usually comes more expensive in the end. Trying to avoid the usual high Engineering prices for German hardware, the requirement to pick out the best of all parts arose. Meaning, best quality/price ratio - taking into account the experience of many RC Pilots following various threads in various forums on the net. Needless to say - even if the Engineering may have taken place in Germany, the manufacturing however took place somewhere in China/Taiwan/Japan anyway.

The electronic components will be the following:

  • Engine/ESC Hacker: A40-10L 14Pole/ Jeti MaSter Basic 70 SB
  • A123 2300mAh Rx Battery pack
  • APC-E 13x10 or 14x10
  • Graupner SMC 16 receiver / Transmitter mc19
  • 5 x DES 657BB Servos (BallBearing and Carbonit gears)
  • 1 x HS-77BB for retract gear function
  • Rhino 4900mAh 5S1P 20C or 2x3S SAEHAN LiPo 20C

Note that Kyosho proposes the usage of a 600/800W Brushless Engine. Using this Hacker combination reaching max 1100W - I think an old signature of a fellow co-worker of mine matches just perfectly:

With sufficient trust - pigs fly just fine... - I just wonder how fine this beast will fly !


The Kit arrived, and needless to say - I was definitly amazed by the quality of the preconstructed content. In fact - all that's required is to put in the electronic components - and up you go.
However - I am not there yet. Let's first go on the details. I noticed that 2 parts where broken in the kit. the cabin had a crack, and the battery compartment had a broken latch release. These - compared to my experience with other kits - is actually a no-brainer. The cabin is something I'd fix with some transparent Tape, and the battery compartment latch got fixed using a Metal-Screw solidly glued in to prevent falling out - making it way more resistant.

The main wings are so far finished. It took quite some fiddling until I found the right way to glue all parts together etc. Note that for all getting this bird - check the size of the servo-mounting-locations, as the servo's I have put into were too small. I had to make new servo-holders on the Wing (for the Flaps notably), and Elevator as rudder. Also - in case you look for a Landing Gear Servo, HS77BB is nice and has the right size, however it is not a 180% Servo, thus you'll have to use other Servo-Arms to get the gear up/down right.

Having done some first tests of the Engine, I noticed the temperature went very high. You could really burn your finger on the engine leaving it ran at 80% power for 1 Minute. A possibility to cool the Engine was required. So - looking at the net what exists - I found some so called "Turbo Spinners" are quite common for the issue I have. However - I didn't find one that fit's into my Spitfire. So decided to just adapt the one I have after checking some turbo-spinners on our airfield. The result can be seen. After I put that one in - I didn't burn my finger anymore.

When the new batteries arrive - I'll surely give this baby a try !

Update:
Have had some first flight experience with that bird now. First of all - the CG (Center of Gravity) had to be forwarded to 10mm behind main-wing nose. The officially provided data as found in the manual did almost cost me the plane. However - after putting the CG at 100mm, it flies beautifully. A gorgeous plane, plenty of power and maneuverability. You outperform most other planes on the field, and definitely steal them the show if in the air, and sometimes even only standing on the ground.
The only things a pilot needs to be aware of - pull the elevator when taking off, and steadily throttle the engine up or you'll have a nose-dive and will need a new propeller. As for landings, make sure you land tail down to avoid nosediving again, and make sure you have sufficient speed. But this is a known behavior for our beloved Spitfire ! 

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