HK: Micro Tiger Moth 480mm - RC Groups
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Aug 23, 2013, 08:00 PM
the journey is the reward
Hammer Head's Avatar

HK: Micro Tiger Moth 480mm

Just got this today.

Will be assembling over the next few days during my stay-cation.

On a search here I could not find much, so I figured I would post the assembly etc...

Here are the first few pics.

Not EPO for sure. Kinda like GWS fuselage foam but thicker, especially the wings and control surfaces, and the wings are not just simple flat foam sheets like the beloved GWS PTM.

A quick parts fit and it looks ok. The lower wing is setup to slot in, and it fits pretty flush in the saddle. Will need to trim the horizontal stabilizer insert nubs to get a better fit. The vertical stab/rudder will need some trimming to get full throw clearance.

The instructions are one page, as pictured.

Lead was also included.

Overall not bad on first inspection.

This is going to be fun.
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Aug 24, 2013, 10:22 AM
the journey is the reward
Hammer Head's Avatar
Sorry Gents, this should have been posted into Micro RTF, I have asked for it to be moved.
Aug 24, 2013, 05:00 PM
Registered User
RNAF's Avatar
Doesn't seem to be ready to fly mate I wouldn't worry.
Aug 25, 2013, 11:58 AM
the journey is the reward
Hammer Head's Avatar
Beyond the screws to mount the motor being to large in diameter, this plane's going together very well.

Just enough room for the smallest Hitec receiver I have.

I have included shots of the components provided with this plane.

Been a pretty tight fit so far but just enough room even with the dubro hardware I used for the push rods/servo arms.

I built in a little down and right thrust when mounting the motor.
Last edited by Hammer Head; Aug 26, 2013 at 02:02 PM.
Aug 26, 2013, 10:45 AM
Registered User
CorvetteC5's Avatar
Nice looking build.

Any idea what the BL motor is specified as? Is it the C10-2000kv, or some such? What propeller size is recommended?
Aug 26, 2013, 01:51 PM
the journey is the reward
Hammer Head's Avatar
Hey CorvetteC5

Appears to be the same motor as the HK BAT, which I have as well. Also same prop for both.

Motor: C10 2900kv
Prop: 4 x 2.5

Build went well. Tight fit with the RX I have, but just enough space so no binding etc.

I elected to use small screws to attach the cowl as pictured.

The cowl with the provided weight added comes in at: 22.5g

The smallest battery I have is a Rhino 2s 360 20C 22.5g

All up weight: 152g (HK indicate120g)

Even with this, and the battery mounted underneath, still very tail heavy at the recommend CG, which is truly not defined other than a dot on the upper wing as pictured in the instructions.

With the battery mounted underneath (I had no place else to put it) CG is reached at about 45% back from the leading edge (at 30%, tail heavy as noted).

So having to mount the battery underneath, as pictured, helps reduce the extra weight needed to get the CG forward a bit more.

Could be interesting to see how the maiden goes as setup, but will look at adding a little more weight to get CG to about 35% from the leading edge.
Last edited by Hammer Head; Aug 26, 2013 at 02:05 PM.
Aug 28, 2013, 12:24 PM
Registered User
Sigh IMO the price is aggressive to begin with and with shipping likely surprisingly expensive.
The ridiculous (unacceptable?) weight /balance issues pretty well say ; 'Avoid'
The HK turnigy /nano tech battery 360 is 1/2 the size and weights 17gms.. cheap at ~3$ too, but unlikely to be useful, given the lead ingot required to; not balance it

Thanks for posting though... it is all good information.
Aug 28, 2013, 01:28 PM
the journey is the reward
Hammer Head's Avatar
Fully concur Bare.

Flies like a brick with all the weight required to balance. To get CG the plane now weighs almost 160g and it still appears tail heavy. Good luck flying it slow, or indoors.

After today's second round of '" flights", and two props/broken cowl, and bent motor shaft , I am decommissioning this plane...circular bin, lesson learned....I hope.

So this is a plane I can not endorse, not worth the money.
Last edited by Hammer Head; Aug 28, 2013 at 01:33 PM.
Aug 29, 2013, 06:23 PM
Registered User

Lighten the tail

Changing the tail to Depron should reduce the amount of lead required to balance?
Sep 22, 2013, 11:29 PM
Scratch building addict
rotagen's Avatar
Hmm, I was interested until I heard the cg issues, thanks for the heads-up. I wish HK would do more quality control, I guess they should leave the micros to Durafly.

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