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Old Mar 06, 2015, 11:34 PM
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ReadyMadeRC Mini Skyhunter FPV Plane

A couple of of months ago ReadyMadeRC posted a pixelated pic of what looked like a Mini Skyhunter on their Facebook page. I liked the Skyhunter but it was just a little to big for the flying I like to do. A Mini version would be perfect.

Well, it's here...or it will be here in a couple of weeks. I got one of 3 PNP kits in the US right now by embarrassing myself at the CFL/FPV meet in Florida last weekend...I did a belly flop into a mud puddle...yes there are pics and videos out there...lol!

Specs from ReadyMadeRC.com

http://www.readymaderc.com/store/ind...oducts_id=3898

Features:

Compact size for easy travel
​Large equipment bay for FPV gear and batteries
Sliding equipment tray
Easy to build
Specifications:

Wingspan: 1228MM
Length: 920MM
Wing size: 19.5dm2
Flying Weight: 830g
Wing load: 42g/dm2
Motor: 2212 KV1400, 3mm Shaft
ESC: Hobby Wing 30A
Servo: 9g*3pcs (No servos for rudders included)
Propeller: 8*4 Electric style
Lipo Battery: 3s 11.1V 3300-5100 MAH
Radio: 3 or 4 Channel (Depending on rudders)
​Center of Gravity: On the main spar (Slightly forward for maiden flight)
​​​Required for PNP:

RC Transmitter and receiver
Battery & Charger
Assembly of aircraft (Fuselage is pre-glued)
9g or 5g servos for rudders if you plan on using them

Here it is

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Not that much to it! It's going to be a quick build.
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Last edited by AdrianM; Mar 07, 2015 at 01:00 AM.
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Old Mar 06, 2015, 11:55 PM
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It's always a good idea to pull the motor to make sure all the screws are tight. My motor screws were not very tight from the x mount to the wood and from the x mount to the motor. There was no thread lock on the motor screws.

I used some thick CA to harden the plywood where the mounting screws go in. A smooth 2-56 pushrod is good for working it into the hole.

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I put some blue lock tight on the screws that attach the x mount to the motor and put the assembly back in the fuselage.
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Last edited by AdrianM; Mar 07, 2015 at 09:46 AM.
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Old Mar 07, 2015, 12:09 AM
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The motor is a 2212 size 1400kv unit that looks well made. The windings are a little scattered but looking inside I see a dot of balancing epoxy. That's pretty nice.

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The ESC is a very nice 30A 2-3S HobbyWing unit. I used to race R/C cars and HobbyWing is a premium brand in those circles. Remember, If you plan on running 4S you will want to swap out the ESC.

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Old Mar 07, 2015, 12:46 AM
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My kit is an early production one so it came with no instructions. RMRC is working on them now and they will be in the production kits.

The parts count is really low on this kit so they are almost not necessary.

Here's the contents of the parts bag.

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The long extension is for the elevator and goes through the inside of the right boom.

The G10 plates are wing re-enforcements that must be glued to the bottom of the wing after you have the elevator extension routed.

The bottom of my right wing didn't have enough room in the servo wire slot for the elevator extension. I use a gun type soldering iron with a home made hot wire tool to cut perfect slots in foam wings.

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Open up the slot for the elevator extension a little so it can pop through and grab it and pull it through with some needle nose pliers.

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Now you can slide the carbon boom into the wing. Be careful, it's a tight fit. Try to get it to seat all the way in. I had to push and twist my booms while supporting the wing where it went in. Again...be careful and do not use too much force.

When the booms are seated make sure you have some slack in the end of the servo extension so you can plug it into the elevator servo.

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I fed the elevator extension into the slot I melted into the wing alongside the aileron servo lead.

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Old Mar 07, 2015, 02:23 AM
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ReadyMadeRC Mini Skyhunter FPV Plane

Test fit the G10 wing re-enforcement plates before glueing anything. They should drop in snug. I had to sand a little off the end of the plates to make them flush with the trailing edge of the wings. This will make them fit in the fuselage better later on.

Attachment 7643194



Once you are happy with how they fit you need to glue them in place. I choose to use 15 min epoxy but RMRC may suggest a better glue in their instructions. I suggest doing what they say.

Epoxy may not adhere to smooth EPO foam. I always rough up the glueing surfaces with 80 grit sand paper to make sure the glue has something to grab on to. I do the same to the glue side of the G10 plate.

Attachment 7643198

I mixed up some epoxy and added a few drops of 91% isopropyl alcohol to thin it out and let is flow. This helps me use less. I dab it on with cheap foam brushes again to use as little as possible. Don't paint both parts in epoxy.

Tape it up and do the same for the other wing.

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Tomorrow I'll get the tail feathers on and building is done.
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Old Mar 07, 2015, 07:09 AM
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Quote:
Originally Posted by AdrianM View Post
I got one of 3 PNP kits in the US right now by embarrassing myself at the CFL/FPV meet in Florida last weekend...I did a belly flop into a mud puddle...yes there are pics and videos out there...lol!
I guess you deserved that Mini Skyhunter


What people do for a RMRC Sky Hunter Mini CFL FPV 2015 (0 min 26 sec)


Thanks for that thread, It's a shame you can't buy all you want
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Old Mar 07, 2015, 07:54 AM
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Quote:
Originally Posted by JulianGoesPro View Post
I guess you deserved that Mini Skyhunter


https://www.youtube.com/watch?v=IhZUKpeOa8s

Thanks for that thread, It's a shame you can't buy all you want
Oh man that is hilarious! Adrian, you definitely deserved to win it LOL.
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Old Mar 07, 2015, 08:56 AM
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Thanks guys...lol!
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Old Mar 07, 2015, 09:19 AM
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Great build log! Keep it up. Glad to see you enjoying your prize, and helping others benefit from your muddy sacrifice.
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Old Mar 07, 2015, 09:57 AM
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Thanks Dave! It's going together really nice.

BTW, thanks for the suggestion on doing the mud flop....it was a way better option than what I lead off with...lol!
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Last edited by AdrianM; Mar 07, 2015 at 11:18 AM.
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Old Mar 07, 2015, 10:09 AM
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Originally Posted by AdrianM View Post
....it's was a way better option than what I lead off with...lol!
now we are not only curious about the MSH :-P What was it?
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Old Mar 07, 2015, 11:16 AM
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The organizers at the CFL FPV meet asked, who's willing to do the craziest thing to win the Mini Skyhunter?

I'm closing on a house I'm building in 2 weeks so my budget for new gear is zero but I really wanted it so I went all in. My first offer was to run down the flight line buck naked. I figured no one would have the sack to top that. Zac (Skyrider) was the MC and the poor guy had this confused/scared look on his face. He knew I won the challenge but no one really wanted to see a naked dude run anywhere. Dave saved the day and suggested a belly flop into the mud instead.
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Old Mar 07, 2015, 12:53 PM
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Back to the build...

Measured both booms to make sure they are equal length...straight planes fly better.

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Eyeballed the angle of the tail mounts to make sure everything was square snugged down all the pinch bolts. Everything fits so tight the bolts don't have much to do so don't over tighten them.

I didn't lock tight these screws as lock tight can make some plastics turn into something like feta cheese. I'll keep an eye on them or replace the screws with slightly longer ones and nyloc nuts.

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Old Mar 07, 2015, 12:59 PM
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ReadyMadeRC Mini Skyhunter FPV Plane

The Mini SH can be completed disassembled except for the right boom and wing due to the buried elevator extension.

If you used 2 extensions....one in the boom and one from below to inside the plane you could break it down and fit it into the kit box for travel.

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I plan on keeping it together and only removing the fuse for travel. So I'm choosing to glue the wing halves together. This is not standard but it will help me with how I want to install my APM controller.
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Old Mar 07, 2015, 01:05 PM
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Originally Posted by AdrianM View Post
This is not standard but it will help me with how I want to install my APM controller.
Do you intend to put it on the bottom of the wing or why does that help?
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