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Old Nov 19, 2012, 10:02 AM
how'd I do that....oh
chop stiX's Avatar
South Africa, GP, Pretoria
Joined May 2011
2,260 Posts
Quote:
Originally Posted by solentlife View Post
I'm now home - but now ill !! I cannot win ....

i will try and gather myself to get on with the twin PKJ .. I decided that I will use PKJ 2 as the twin machine and resurrect PKJ 1 to single status and 4400kv motor.

All depends on MRI scan at Hospital at moment ...

Nigel
Sorry to hear bud.hope all goes weel and a speedy recovery.
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Old Nov 20, 2012, 10:20 AM
222 km/hr Parkjet flyer
solentlife's Avatar
Latvia, Ventspils pilsēta, Ventspils
Joined Jan 2010
9,013 Posts
Decided today that hell or high water - I'd start on PKJ(Twin) ...

Donor machine is my 4400kv 1.1Kw PKJ2 .....



So first was to cut out the motor mount and infill with pink closed cell foam ...



Then remove paint / rough up the foam for epoxying the beams in ...





Motors in and beams secured also with wide head self tappers ..









Twin 50A ESC's ... one with red BEC lead pulled ... to a Y lead for Rx, I had to add a length to the battery cables as they were far too short ...



Unfortunately - I now find I have run out of bullets to connect the motors !!

AUW without battery : 442 grams

CoG with 2200 3S Turnigy or 1600 4S Zippy Compact is at front edge of finger holes ... ie spot on ! The battery is as far fwd as possible.

Once I have motors connected ... and weather improves .... the V3 Speed Sensor will tell us what this bay will do !

Motors are 2632 3800KV small heli motors, 4.75 x 4.75 contra rotating props (inward turning), 50A ESC's ...........

I have 5x5, 4.5 x 4.5 and 4.1 x 4.1 contra props as well in case ...

Nigel
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Old Nov 20, 2012, 03:05 PM
Glow 😡 no no no
Australia, SA, Evanston Park
Joined Mar 2010
4,846 Posts
Quote:
Originally Posted by solentlife View Post
Decided today that hell or high water - I'd start on PKJ(Twin) ...

Donor machine is my 4400kv 1.1Kw PKJ2 .....



So first was to cut out the motor mount and infill with pink closed cell foam ...



Then remove paint / rough up the foam for epoxying the beams in ...





Motors in and beams secured also with wide head self tappers ..









Twin 50A ESC's ... one with red BEC lead pulled ... to a Y lead for Rx, I had to add a length to the battery cables as they were far too short ...



Unfortunately - I now find I have run out of bullets to connect the motors !!

AUW without battery : 442 grams

CoG with 2200 3S Turnigy or 1600 4S Zippy Compact is at front edge of finger holes ... ie spot on ! The battery is as far fwd as possible.

Once I have motors connected ... and weather improves .... the V3 Speed Sensor will tell us what this bay will do !

Motors are 2632 3800KV small heli motors, 4.75 x 4.75 contra rotating props (inward turning), 50A ESC's ...........

I have 5x5, 4.5 x 4.5 and 4.1 x 4.1 contra props as well in case ...

Nigel
Nice looking motor mounts lol
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Old Nov 20, 2012, 03:30 PM
Wats the worst that can happen
TheCure's Avatar
Canada, BC, Surrey
Joined Jan 2009
542 Posts
Nice quoting :-) ^

Come on! For the love of God. Just solder those little b!tches on, and give us fans what we want.... SPEED
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Old Nov 20, 2012, 05:06 PM
Glow 😡 no no no
Australia, SA, Evanston Park
Joined Mar 2010
4,846 Posts
Quote:
Originally Posted by TheCure View Post
Nice quoting :-) ^

Come on! For the love of God. Just solder those little b!tches on, and give us fans what we want.... SPEED
I thought so too lol
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Old Nov 21, 2012, 12:07 AM
how'd I do that....oh
chop stiX's Avatar
South Africa, GP, Pretoria
Joined May 2011
2,260 Posts
Looking Nice Nigel.looking forward to hear what this bad boy will do
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Old Nov 21, 2012, 01:40 AM
222 km/hr Parkjet flyer
solentlife's Avatar
Latvia, Ventspils pilsēta, Ventspils
Joined Jan 2010
9,013 Posts
Quote:
Originally Posted by aeromaniac View Post
Nice looking motor mounts lol
I know - lovely arent they !

But actually they are better than the alloy mount I used before I changed to the metal L bracket. For someone just doing the normal single motor PKJ ... it's a good stick mount, better than both the stock and alloy.

Here - I'm just interested in one thing - getting the machine airborne. Cosmetics are for others. If she works - then I may add some foam fairing or other to make her look a bit better.

OH - I salvaged some bullets from other set-ups and had her connected up last night ... you have to hear those motors together ... what a sound ! But boy - in just a few secs the test LiPo - a 1300 3S 25-35C puffed .............. so she needs serious battery ! Still to do Wattmeter tests.

To satisfy some others on another topic - the V3 Speed sensor is in my 50mm EDF to clock what my $30 upgrade really does .. Once that's cleared up - the PKJ(T) will get it back.
Thinking about the V3 sensor ... I'm seriously thinking to get some more ... now that I have the Edge 540 racer, crazy power EDF's etc ...

Nigel
Nigel
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Old Nov 21, 2012, 01:47 AM
how'd I do that....oh
chop stiX's Avatar
South Africa, GP, Pretoria
Joined May 2011
2,260 Posts
We need video proof
tangtelise us with a short vid of the twin spooling up
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Old Nov 21, 2012, 01:51 AM
Reap the wild wind
headlessagain's Avatar
Bristol,UK
Joined Feb 2007
4,285 Posts
I use the same style of plastic mount on my PJ. Got a bunch of them from Millennium RC as they are better quality than GWS versions http://www.millenniumrc.com/MotorMount.html
Andy
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Old Nov 21, 2012, 02:58 AM
Glow 😡 no no no
Australia, SA, Evanston Park
Joined Mar 2010
4,846 Posts
Quote:
Originally Posted by headlessagain View Post
I use the same style of plastic mount on my PJ. Got a bunch of them from Millennium RC as they are better quality than GWS versions http://www.millenniumrc.com/MotorMount.html
Andy
Lol so far the GWS ones have been great for me.
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Old Nov 21, 2012, 01:51 PM
222 km/hr Parkjet flyer
solentlife's Avatar
Latvia, Ventspils pilsēta, Ventspils
Joined Jan 2010
9,013 Posts
Quote:
Originally Posted by chop stiX View Post
We need video proof
tangtelise us with a short vid of the twin spooling up
Oh alright ... just for you ....

PKJ twin power-up (1 min 27 sec)


OK ?

Nigel
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Old Nov 21, 2012, 03:19 PM
ICrashRCs
United States, TN, Memphis
Joined Jun 2011
1,196 Posts
Your video is showing as private Nigel.

I've been flying my PKJ2 the last 2 weeks.
Nice and SLOW plane LOL. Flies sweet though. Really enjoying it.
It keeps living to fly again and that's what I was after.

Nosed it in full speed yesterday and virtually scratch free.
I credit the durability to the 3 carbon strips I placed standing up under the battery area.
The nose didn't curl upward this time and spared the canopy too.
Highly recommended mod.
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Old Nov 22, 2012, 12:23 AM
how'd I do that....oh
chop stiX's Avatar
South Africa, GP, Pretoria
Joined May 2011
2,260 Posts
Quote:
Originally Posted by solentlife View Post
Oh alright ... just for you ....

http://www.youtube.com/watch?v=DHn-ce8FUZM

OK ?

Nigel
Thanx Nigel
but as IFlYRC's said it's marked pvt?
you really want to keep us on our toes with this dont you
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Old Nov 22, 2012, 01:07 AM
222 km/hr Parkjet flyer
solentlife's Avatar
Latvia, Ventspils pilsēta, Ventspils
Joined Jan 2010
9,013 Posts
Quote:
Originally Posted by chop stiX View Post
Thanx Nigel
but as IFlYRC's said it's marked pvt?
you really want to keep us on our toes with this dont you
Uploader auto set the private ... sorry about that ..... now public !

Nigel
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Old Nov 22, 2012, 01:10 AM
222 km/hr Parkjet flyer
solentlife's Avatar
Latvia, Ventspils pilsēta, Ventspils
Joined Jan 2010
9,013 Posts
Quote:
Originally Posted by IFlyRCs View Post
Your video is showing as private Nigel.

I've been flying my PKJ2 the last 2 weeks.
Nice and SLOW plane LOL. Flies sweet though. Really enjoying it.
It keeps living to fly again and that's what I was after.

Nosed it in full speed yesterday and virtually scratch free.
I credit the durability to the 3 carbon strips I placed standing up under the battery area.
The nose didn't curl upward this time and spared the canopy too.
Highly recommended mod.
The nose bending up is the biggest problem due to that weak area just as the canopy line drops to wing root ... it's too thin with all the cut-out inside. My solution is the insertion of light balsa spars in the base ...

Video is public now ...

Nigel
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