Dolphinco MX2 Electric Build

[Jag01]

Hi Guys,

as the heading suggests, I will be doing a building thread one of the latest offerings from www.dolphinco.com.au this is the 57" Mx2.

What can I say, I have loved the Kermitt scheme from the first time I saw it and could not justify another big plane, so have chosen to go for the 57" version and will set it up as an electric Park flyer.

So here are a few pics of what I have found as I have opened the box. The kit is an ARF and comes complete with hardware for nitro engine power option which fuel tank, composite engine mount and also motor box for an electic option.

The Rudder (pull / pull) and tail plane are full aerofoil shape, the canopy and canopy surround are a one piece moulded plastic, so there is a seemless transition from canopy to surround. The kit comes complete with Carbon wing tube, aluminium undercarriage, fibre glass wheel pants.

Also included is fibre/composite servo arms and control horns and ball links for all control linkage connection.

I must admit I was more than pleasantly surprised with the finish of the covering material, not a wrinkle, bubble or lifing edge to be seen.

So if your interested stay tuned and I will add more pics as I go through the build.

cheers,

JEff

[TROYS PIT-BITCH]

What setup are you running in the plane?

[Jag01]

Still working throught the possibilities at the moment, however the motor will be one of these

http://unitedhobbies.com/hobbycity/s..._580Kv_/_1580w

http://unitedhobbies.com/hobbycity/s...0C_Lipoly_Pack


http://unitedhobbies.com/hobbycity/s...eed_Controller

I havent decided on servos yet, as the recomendation is for full sized servo's however I would prefer to cut out some weight and believe the full size servos could be an over kill. I need to do some homework on this aspect of the build.

cheers,

Jeff

[jono120]

here is the red one

[jaguar bone]

Subscribed!
Good luck with your build Jag01!

[TROYS PIT-BITCH]

I like the green one better I think, it could be because I have compy coming in the same scheme

[Jag01]

OK did a little bit more on the weekend.

Hinged the ailerons, which are a cyno hinge, when doing so I glue a couple of hinges into the aileron surface and a couple into the wings. I have found this makes it easier to get the hinges to line up when fitting the aileron to the wing.

I install the fibre control horn into the aileron surface prior to fitting the aileron to the wing. The slot that the control horn fit into are spot on and provide a nice tight fit and do not require any adjustment to get the hole in the contol horn directly above the hinge line.

I have bared the horizontal stab section to facilitate glueing into the fuse. One picture shows the wire elevator half joiner. This is 3 mm spring steel and I do think it would be sufficient however, I am choosing to use two elevator servos, so will ommit the wire when mounting the elevators.

Cheers,

Jeff

[danielph]

I've always liked the MX-2s. This looks like it'll be great!

[DemonAce]

I bought the same plane recently but used a .46 AX, Flies awesome, lands well
Really happy with it!

[BingWing]

Great stuff Jeff ! Got this plane and will be doing a Build thread on RCG and a full review in Airborne Magazine issue after next. My setup will be JR539 servos / Duelsky Xmotor / 16x8 prop / 5s 3700 / 5s4500 flight packs / 60 amp ESC. I agree the qulity looks great for the price. Instructions are crap ! but its looks a very easy build. Keep us posted

Garth

[Jag01]

Yeah I am dying to get back into my stalled build. I have been waiting on some servo's motor and time!!!!

cheers,

Jeff

[BingWing]

what donk you going with ?

[BingWing]

no update mate ?

[Jag01]

Finally got my finger out and finished this plane off, build thread was a bit of a bust, but then again it really just slots together without much drama.

Ended up using the following gear,

Motor,

Tunigy SK 50-55
Tunigy Plush 80Amp speedy (these things are bullet proof)
Aileron & Rudder servos, BMS-761DD Low Profile Digital Servo 4.4kg /
Elevators BMS-385DMAX Digital Servo (Metal Gear) 4.2kg These are micro servo's and would have to be the best micro digitals I have come across, excellent centering and good torque.

Battery 5 s 3700mah Rhino's

I am still playing with CG and setting however each flight it is getting better. Rock Solid in harrier both upright and inverted, does wicked inverted flat spins. Seems to be fairly short coupled so the elevator is pretty sensitive in hover, I have been a little dissapointed to date with Rudder authority, however that still could be a CG thing at the moment.

All in all, I look foward to putting some more flights to get it dialed in better.

cheers,

Jeff

[timbo0279]

	Quote: Originally Posted by Jag01
	Finally got my finger out and finished this plane off, build thread was a bit of a bust, but then again it really just slots together without much drama. Ended up using the following gear, Motor, Tunigy SK 50-55 Tunigy Plush 80Amp speedy (these things are bullet proof) Aileron & Rudder servos, BMS-761DD Low Profile Digital Servo 4.4kg / Elevators BMS-385DMAX Digital Servo (Metal Gear) 4.2kg These are micro servo's and would have to be the best micro digitals I have come across, excellent centering and good torque. Battery 5 s 3700mah Rhino's I am still playing with CG and setting however each flight it is getting better. Rock Solid in harrier both upright and inverted, does wicked inverted flat spins. Seems to be fairly short coupled so the elevator is pretty sensitive in hover, I have been a little dissapointed to date with Rudder authority, however that still could be a CG thing at the moment. All in all, I look foward to putting some more flights to get it dialed in better. cheers, Jeff

What size prop are you using Jeff?? and what sort of power are you pulling out of that motor?? i.e. amps/volts/watts???