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Old 04-18-2016, 05:37 PM   #1
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Default Hobby King Edge 540 EPP / Ply 1430mm span

I am not a lover of EPP ... and since my Zlin went in - I have been looking for a 3D machine with 'presence' ... that means size !

I have the Katana .. Hummer ... Yak ... etc. but none really stand out and say ... HERE I AM ! The Zlin did ... till its too low antics and crash.

So I plumped for the 1430mm span EPP / Ply Edge 540 that Hobby King are throwing out via EU warehouse at 75 euros at moment. They say Free Shipping - but you have to buy another item and the charge shipping on that ... so really all you get is a discounted item price ...

Anyway ... 120 Euros for the model and 4 servos cannot be bad.

I already have a 4250 650kv motor ... 13x8 props ... 5mm adaptors etc. So really it's a short exercise to get ready.

I shall fit the Hobby Eagle A3 Super II stabiliser in ... that should make her a real bundle of fun ...

Will post as she arrives and gets sorted.

Nigel

222kph PKJ,EDF Concorde, Mini4,Mig3,T45,PKJ twin,ME109,Edge540,Cessna182,Skymaster Biplane,F15,F16,Badius,Ultimate,SE5,Qbee10,450 Heli,V911,J3 Cub Founder 9x forum: http://groups.yahoo.com/group/Flysky_RC_radio/
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Old 04-18-2016, 07:03 PM   #2
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Nigel,

Can you include a link? I believe I had this plane. Was nice. I also believe Jet may have the same plane. As I recall, I put a SK3 series motor in there.

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Old 04-18-2016, 07:23 PM   #3
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http://www.hobbyking.com/hobbyking/s...dproduct=77302



I think Jet has the MXS ... ?

Nigel

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Old 04-18-2016, 07:57 PM   #4
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See post 1160 in: "What's your newest plane ?" thread. Pretty sure Jet has one.

That's the one though. Getting bad when you start forgetting about what you had. -LOL

Yeah I placed an Omega-130 850KV motor in that one.

I do now remember I crashed that one beyond recognition. LOL Was the planee ,not the plane.

Good deal ! I love it when HK goes crazy once in a while.

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Old 04-18-2016, 09:00 PM   #5
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Yeah, i have that same one and also the MX2, both are similar construction. They are terrific planes. The Edge is the better of the two as it has stronger landing gear attachment.

Nigel, that motor wont be any use. It's about 100g too heavy, too big to fit and too low Kv unless you plan on running 5s. Bear in mind that the whole point of this type of model is to be light and 'floaty'

Heres a couple of tried and tested motors that i can personally recommend for this plane:

For 4s power (2200mAh) with 12x6 prop: http://www.hobbyking.co.uk/hobbyking...ner_Motor.html

3s power (2200-2600mAh) with 12x6 or 13x6.5: http://www.hobbyking.co.uk/hobbyking...ner_Motor.html

PS.. i just noticed that Hobbyking have changed the design if the SK3.. it used to be supplied with a bolt on prop adapter but now it has a reversed shaft and collet adapter. this wont effect it's performance but it may mean that the prop hangs slightly out of the front of the cowl.
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Old 04-18-2016, 09:07 PM   #6
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Now it's all coming back to me . I did order a few SK series motors per Jet's recommendation.

Plane is light. If I was any better at 3D maneuvers I grab another one. Still have my Sukhoi for that stuff.

Cya,

Hawk
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Old 04-18-2016, 09:24 PM   #7
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The Edge really does fly like it's filled with helium. here's mine from a couple of years ago (gyro free!):
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Old 04-19-2016, 05:57 AM   #8
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Originally Posted by JetPlaneFlyer View Post
Yeah, i have that same one and also the MX2, both are similar construction. They are terrific planes. The Edge is the better of the two as it has stronger landing gear attachment.

Nigel, that motor wont be any use. It's about 100g too heavy, too big to fit and too low Kv unless you plan on running 5s. Bear in mind that the whole point of this type of model is to be light and 'floaty'

Heres a couple of tried and tested motors that i can personally recommend for this plane:

For 4s power (2200mAh) with 12x6 prop: http://www.hobbyking.co.uk/hobbyking...ner_Motor.html

3s power (2200-2600mAh) with 12x6 or 13x6.5: http://www.hobbyking.co.uk/hobbyking...ner_Motor.html

PS.. i just noticed that Hobbyking have changed the design if the SK3.. it used to be supplied with a bolt on prop adapter but now it has a reversed shaft and collet adapter. this wont effect it's performance but it may mean that the prop hangs slightly out of the front of the cowl.
Jet - was yours the 1220mm or the 1430mm version - mines the larger 1430mm (55") span job. The recc'd motor is the 4250 ...... and 4 - 5S lipo.

Here's the 1220mm (48") version which suggests motors etc. as you give :

http://www.hobbyking.com/hobbyking/s...dproduct=29765

Requires:
Your own 4~6CH transmitter and receiver
Mini servos x 4 (metal gear digital servos recommended)
35mm brushless outrunner motor (850~1000KV recommended)
50~70A brushless ESC
13x6.5 ~ 14x6.5 propeller
3S 11.1V 2200mAh lipoly battery pack
And the one I have ordered 1430mm (55") version :

http://www.hobbyking.com/hobbyking/s...dproduct=77302

Requires:
Your own 4~6CH transmitter and receiver
4 x Park size servos(metal geared recommended)
42mm brushless outrunner motor (4250 510KV recommended)
50~80A brushless ESC
13x6.5 ~ 14x6.5 propeller
4-5s 14.8v 2200-2600mAh LiPoly battery pack
I have other motors but they are boxes for another model in build. I can change if necessary - but first let's confirm which size model we are talking about ...

Nigel

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Old 04-19-2016, 06:30 AM   #9
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Hi JPF ... it would appear looking at the Edge in your Video ... the elevator servo is above the C/L of the tailplane ? That makes it the smaller 48" version. Just checked YouTube link and yes - yours is the smaller 48" version.
The larger 55" version has the elevator servo below the C/L of the tailplane.

Anyway ... size is not that important for next bit.

Did you use the servo extensionarms or set up with servos own arms ? How was the build ? Any areas of note ? Did you find CoG / surface movements correct in manual or did you adjust ?

Cheers
Nigel

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Old 04-19-2016, 09:42 AM   #10
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Ahhh.. sorry Nigel, I was assuming that it was the same as mine. The bigger version should be even better. I look forward to your review.
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Old 04-19-2016, 10:03 AM   #11
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Originally Posted by JetPlaneFlyer View Post
Ahhh.. sorry Nigel, I was assuming that it was the same as mine. The bigger version should be even better. I look forward to your review.
No problem ... as soon as you mentioned the motor size - I was sure you had the 48" .. as I looked at but it would mean the 4250 I have spare would still sit on the bench.

As I asked before ... any issues putting it together ? I suppose one advantage being EPP is use of CA for quick joints.

Control throws / CoG ? Were they as per manual OK ?

I have had to order an ESC as my 80A is dead. Of course HK has backorder on them ... so had to plump for a 70A jobbie ... which hopefully should be OK.

Can't check with wattmeter as all my heavy duty ESC's are installed in models !!

Nigel

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Old 04-19-2016, 12:26 PM   #12
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CG was as per manual for the first flight (about on the main spar) and I tweaked from there but it was very close right away. Control throws I tend to go with TLAR method and adjust after the first flight. Personally for 3D rated that would usually be 45 degrees on all surfaces for general 3D, then a 'tumbling rate' that maxes the elevator to mechanical limits and a lower 'sport' rate that's about 60% of the 3D rate.

Sport would use about 30% expo and 3D maybe 50% or higher.

The price for the big Edge looks like a real bargain, I'm tempted!
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Old 04-19-2016, 01:36 PM   #13
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Don't forget - free shipping of the EDGE itself is only if you buy something else. The free shipping does not count for the additional item - so from EU warehouse you still get the 16.42 Euro shipping charge due to the big box ... but 75 euros instead of original price ... I can live with that !

I got directed to the long running thread on RCG for this model .... 33.9 pages of total hogwash out of 34 pages ! Only two bits of useful info were Spinner size : 2.5" and the CoG at 105mm. Nothing else except the typical motor recc'd if you live in USA ...


Cheers
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Old 04-19-2016, 04:41 PM   #14
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Nigel,

Yep, you got a really good deal !

The EPP is not what you might expect. More or less fuzzy-like than the classic spongy epp jobs. Mine went together real easy. Just needed to CA all the joints.

Look forward to hear how you like it.
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Old 04-25-2016, 06:52 PM   #15
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Just opened my box .... boy was that protected ! It was double boxed and then the servos I ordered with it were fixed extra outside to the end with cardboard protection ... all good.

I have an Edge 540 racer .... but this baby when unboxing is big ! Now I am used to 1600mm and so on models ... so 1430mm did not inspire any worry .... but I open the box and pull out fuselage !! I am not surprised on the 4520 Motor recc'd now !

First ..



then bits start to come out ...

















Even my Wife stepped back when she saw the size of the fuselage ...

The board you see it all sitting on is my 1.5m foam cutting board !

Building sequence starts tomorrow ....

Nigel

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Old 04-26-2016, 07:25 PM   #16
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OK ... near completed assembly of the model and doing the radio bit.

Had to add bridging pieces to elevator and rudder servo slots but that's not hard. But what I find annoying is that all 4 supplied rods are too long .. the aileron rods I had to cut 2mm of each end. ALL servos are fitted exactly orientated as manual shows.

Anyway ... I used a slow setting CA for a lot of the work but 5 min epoxy where strong was called for ...

Hinges done : the slow set allows me to CA the hinge material BEFORE insertion making sure a good full bond achieved ..



Aileron servos perfect fit (GS 9650BB's).



Motor mount was off for the bolts and had to be drilled to match. The original blind nuts were moved to new bolt holes.







Waiting wheels and radio gear ..



Should have her finished tomorrow ...

Nigel

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Old 04-26-2016, 07:31 PM   #17
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Nicely done. Looks great! Let us know this furry creature flies!

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Old 04-27-2016, 07:28 AM   #18
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I find it interesting that Hobby King and the original factory quote 4S lipo on the 500kv motor. RCG thread has most people flying with twin 3S packs giving 6S on the 500kv.

I intend to fly 5S on my 650kv motor ... and I may be limited because of the prop I will use. I have 13*8 and 14*8 props ....

Nigel

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Old 04-27-2016, 07:45 AM   #19
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Running my motor / prop combo through ecalc shows that a 14*8 prop on 5S will overload seriously my motor.
But a 13*8 will be on the limit and give me 1.54 to 1 power to weight.

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Old 04-27-2016, 08:44 AM   #20
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A 13" prop is very much on the small side for a 3D plane of this size. I'd be looking at a prop at least 15". FWIW I run a 13 or 14" prop on the 48" span version of this plane, the previous video was running a 14" prop.

Watch the landing gear area. On the original 48" edge it was bullet proof but they changed the design on the newer models (the MX2 and yak etc) and it's now very weak. I don't know how they did it on the bigger one but if nothing else make sure you run plenty of glue around the joints.
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Old 04-27-2016, 03:15 PM   #21
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Just weighed the model without Battery ...

She has 4 x 25gr servos. FrSky 8ch Rx. 50A HK large ESC. Turnigy Aerodrive 4250 650kv motor. 13x8 Aerostar light wood prop with 5mm cone collet adaptor.

Total weight ready to put battery : 1580gr

Add 395gr for battery .... that's 1975gr AUW ... lighter than I expected.

eCalc gives me 1.96 to 1 Power to weight on a 13x8 prop and 5S ....


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Old 04-27-2016, 03:17 PM   #22
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I'd like a bigger prop - but then I'd be looking at 4S because the 5S is already on the 13 pushing the motor limits.

Nigel

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Old 05-02-2016, 09:30 AM   #23
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Maiden today at Airport ...

Fingers crossed .... video to follow !

Nigel

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Old 05-02-2016, 12:14 PM   #24
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Good luck with the maiden Nigel
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Old 05-02-2016, 04:56 PM   #25
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I'm really p*****d off ....

I read so many things about making sure hinges were really secure ... I made sure .. I tugged / pulled / glued like no tomorrow ... flying was really nice - this model flies straight level upright / inverted / you name it ... absolute dream on the 4250 650kv + 5S + 13x8 .....

Then gave it a bit of throttle ... ailerons blew all hinges ... down she came ... SMASH !

I can live with it if it's MY mistake ... but when I look inside the ailerons (its opened up) ... the spar to take the hinges - its a thin vertical 1 - 1.5mm ply crap ! NOTHING to glue to !
AND Ca Hinges ... which I was 50-50 whether to use ..

Interesting that ALL hinges stayed in wings ... all pulled out of ailerons, not one different. That shows how weak the aileron side is.

She's repairable .... but after only 3 mins flight time ??

Nigel

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