Hacker 3M Decathlon build - RCCanada - Canada Radio Controlled Hobby Forum
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Old 12-27-2019, 10:58 PM   #1
AJCoholic
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Hacker 3M Decathlon build


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So, after trading hands a few times back in 2017/2018... I ended up with this new Hacker (Czech made) ARF... Ive always liked a large sport plane and really liked the lines of the Decathlon. So, thanks to Dave in Alberta back in March 2018, I ended up with the kit.

The fuselage is all fibreglass, with wood formers. Looks very well made. At least as nice as the few AD composite jets Ive assembled. The wings and empennage are built up and covered with some sort of iron on. They look well made and the covering is drum tight, even after crossing back and forth across Canada and two years storage in my unheated storage at work.

I was going to use a DL100 twin originally, but decided to go with a DA85 - which will JUST fit completely within the cowling, with a Slimline wraparound PITTS muffler.

I have Savox servos (some high torque Ti gear ones) for all surfaces (one for each elevator, one for rudder, one for each elevator and flap) plus throttle and choke servos. Smart fly power regulator into a Spektrum powersafe receiver. Smart fly optical kill/regulator for the engine as well. Ill probably use some 4000 Mah Lipos for the receiver (2) and something similar for the ignition.

Im really hoping to get this ready for the spring...

So far, I have the engine mounted and spaced correctly for the cowl to line up. Main gear mounted. The fits are good - but the wing tubes were very tight and Ive spent a few hours sanding the inside of the tubes to fit. Tedious.. There are no servo openings, you have to cut and reinforce them after laying out. Similarly, the tail needs to be reinforced, epoxied and so forth. Not your average ARF, there are minimal (ie, no) instructions and the kit is not meant for builders with little experience.

Wish me luck!
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Andrew Coholic -MAAC #26287L

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Old 12-27-2019, 11:03 PM   #2
Terry Gauvin
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Re: Hacker 3M Decathlon build

Love the Decathlon, looking forward to seeing more.
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Old 12-27-2019, 11:09 PM   #3
AJCoholic
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Re: Hacker 3M Decathlon build

Quote:
Originally Posted by Terry Gauvin View Post
Love the Decathlon, looking forward to seeing more.
I can only hope all my photos wont be upside down.

I also love the lines of the Decathlon. I know they were somewhat in style the past few years but thats not a care to me. I have a 100cc and 150cc Extra 260, having a larger sport plane something completely different is appealing to me.

This model was reviewed in a British model magazine (they used a ZDZ 60cc) and it was very favourable, other than the lack of instructions and lots of fitting left up to the builder.
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1/2A to giant scale, IMAC, SAM, R/C sport, turbine jets, Heli's...
if its got a wing or two and an engine - I like it!
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Old 01-02-2020, 07:09 PM   #4
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Re: Hacker 3M Decathlon build

Managed a bit more on the Decathlon. Rear servo cut outs made and epoxied ply on the inside, rear flying surfaces fit, epoxied and bolted on. Im not making the tail removable. Tail wheel mounted.

There is a plastic fairing that goes on the fin base to clean it up. The elevators and rudder can be hinged next. And get the main wheels and pants fit on.
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Andrew Coholic -MAAC #26287L

1/2A to giant scale, IMAC, SAM, R/C sport, turbine jets, Heli's...
if its got a wing or two and an engine - I like it!
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Old 01-02-2020, 09:51 PM   #5
AJCoholic
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Re: Hacker 3M Decathlon build

Darn photos are always upside down..
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Andrew Coholic -MAAC #26287L

1/2A to giant scale, IMAC, SAM, R/C sport, turbine jets, Heli's...
if its got a wing or two and an engine - I like it!
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Old 01-02-2020, 09:56 PM   #6
AJCoholic
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Re: Hacker 3M Decathlon build

This is a photo off the Hacker site. Looks good with the decals applied.
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Andrew Coholic -MAAC #26287L

1/2A to giant scale, IMAC, SAM, R/C sport, turbine jets, Heli's...
if its got a wing or two and an engine - I like it!
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Old 01-02-2020, 10:12 PM   #7
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Re: Hacker 3M Decathlon build

How come that pic is not upside down??????

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Old 01-02-2020, 10:17 PM   #8
AJCoholic
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Re: Hacker 3M Decathlon build

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How come that pic is not upside down??????

Dennis
You tell me and well both know! I can even turn mine upside down and repost, they still end up inverted. Sometimes sideways. WHo knows...
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Andrew Coholic -MAAC #26287L

1/2A to giant scale, IMAC, SAM, R/C sport, turbine jets, Heli's...
if its got a wing or two and an engine - I like it!
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Old 01-03-2020, 04:02 AM   #9
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Re: Hacker 3M Decathlon build

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Originally Posted by AJCoholic View Post
You tell me and well both know! I can even turn mine upside down and repost, they still end up inverted. Sometimes sideways. WHo knows...
Are you using an iPhone? Ive had that problem here before.

Daren
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Old 01-03-2020, 06:31 AM   #10
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Re: Hacker 3M Decathlon build

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Originally Posted by AJCoholic View Post
Darn photos are always upside down..
Its a iPhone issue. Flip your phone 180 degrees then take the picture.
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