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HomeScale✈️AircraftScale HeliScale Helicopter Main Discussion › 600 size Jet Ranger
05-06-2020 06:46 AM  10 months ago
TailKiller

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Panama City, FL

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I'm setup with an Scorpion 890kv 170 main 14t pinion. I want a 13t pinion for it and the 700 I'm building which also has the 170 main gear, 520kv 14t however I have tried several times to drill out a 13t from 5mm to 6mm shaft with no luck. I'm always a little off center and have a slight wobble with the pinion. I got a 10t and 12t Rhino Gear pinions which would run efficient but the walls are so thin and I've seen pics of the pinion separating and causing crashes. ESC % is in the mid range so the temps can be 165f but it not caused a issue yet. It's not the most efficient setup.
On the 600, whether it be 6s or 8s I've had to put weight in the tail cone for CG.
Dennis
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05-06-2020 07:16 AM  10 months ago
TailKiller

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Panama City, FL

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I need to correct myself. I using the 188t main helical gear with a 15t pinion on the 700. I can switch out to a 170t if I had faith in these pinions

Dennis
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06-06-2020 12:35 AM  8 months ago
cobieg

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Florida

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Well, its been a while. I had to come up with a better mounting clamp system (sorry Mark). I got a block of a very hard polymer and came up with these. This stuff drills and takes a tap nicely. they click on very tight and screw down from inside.

Time to get the mechanics set in.

Ron
I didn't crash. I just ran out of airspeed, altitude, and ideas all at the same time!
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06-06-2020 02:48 AM  8 months ago
Copter Doctor

rrProfessor

Enterprise/ft.rucker ,al- home of army aviation

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heres an inspiration video for ya
My 600 size funkey longrqanger. I did change a few things, I lengthened the tailboom, put longer blades (660mm) on and put the tailrotor on the correct side. the landing gear is one of Mike Spinner's but I made my own float bags and added some more scale bits to it all.

Watch at YouTube

drive a rotary, fly a rotorcraft
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06-06-2020 02:02 PM  8 months ago
cobieg

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Florida

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Thanks Emile for the inspiration. Now that I know that I am not the only one that it bothers lol. I set the 550 mechanics inside with the longest main shaft for the trex 600 (208mm I think), and with some spacers, got the head height with a blade on it so it is just higher than tail fin with a little forward tilt on the mast. I think my 640mm stretch kit from another pod and boom will work just fine

Ron
I didn't crash. I just ran out of airspeed, altitude, and ideas all at the same time!
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08-09-2020 06:14 PM  6 months ago
cobieg

rrApprentice

Florida

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Well I finally got to hover the mechanics today. Had to put it on the back burner for a little bit. It felt nice, sounded nice. Strange seeing the right side skid high lol. I will go over it tonight and make sure everything is still tight. I now have a nice quiet place that I can fly during the week and get fine tuned.

Ron
I didn't crash. I just ran out of airspeed, altitude, and ideas all at the same time!
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08-17-2020 05:19 PM  6 months ago
cobieg

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Florida

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Playing heli chess and looking a couple moves forward on this build. Just like my last Funkey project, I am not a fan of the smoke tinted windscreens. What would be the proper way to replicate this in clear?

Ron
I didn't crash. I just ran out of airspeed, altitude, and ideas all at the same time!
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08-19-2020 02:57 AM  6 months ago
DCORSAIR

rrVeteran

Selma, Calif.

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Your LR Looks great, I built one several years ago,.it had Hirobo Evo mechanics converted to electric, they are a very nice fuselage, I also bought the scale gear to go with it, I never knew that the real LR had a longer boom, oh well, no one else noticed. I didn't know if some of you guys that still use the Trex 600E mechanics knew that MotionRC is now stocking PheonixTech 600 FBL mechanics, they should be a drop in fit for these Funkey fuselages, I know they fit the Roban 600 scale fuselages, just a little info for those that like the Trex 600 mechanics.

D. Lee.....t.Born again.t.....
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09-03-2020 12:19 PM  6 months ago
cobieg

rrApprentice

Florida

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I got the mechanics with the stretch boom and blades (640mm mains) and weighted to aprox. the fuselage weight and it flies nice. The head has been on the optical tach at 1500 rpm. It may need to go up a little in the end.
The fuselage needs some work besides the tail needing to be reversed. The usual stuff, canopy is either too wide or not enough. In this case the front lips come together and leaves a good gap on the back and it teeters on the flat parts.

The front is too narrow and I will cut straight across behind the bottom windows and up the middle to open it up then bond it back together.

Time to start cutting

Ron
I didn't crash. I just ran out of airspeed, altitude, and ideas all at the same time!
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09-09-2020 11:07 PM  5 months ago
Seaviper

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Central MS

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DCORSAIR I didn't know if some of you guys that still use the Trex 600E mechanics knew that MotionRC is now stocking PheonixTech 600 FBL mechanics, they should be a drop in fit for these Funkey fuselages
I am starting work on my Funkey 600 AS350 project and will use those PhoenixTech mechanics. I just discovered those mechs on the Motion RC website the other day. Hopefully they will fit. I wish I had known about these PhoenixTech mechs back when I built the MD500.
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09-10-2020 12:44 AM  5 months ago
cobieg

rrApprentice

Florida

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I bought a Phoenix torque tube gear box assembly just to have. It is butter smooth.
Got a little done on this project. The plywood base is bonded in and the landing skids back on. Put the mechanics inside and bummer, I have to shorten the swash plate anti-rotation bracket by about 1/4 inch so not to notch out the top of the doghouse. I have a new one on order just in case I screw this one up. But, I think the shaft angle looks good here, just the head needs to be higher.

I just ordered some main shaft stock from McMaster. Thanks for the part# Jay. Now to find a good machinist.
I also clamped the tail fin in the vise. The boom should be about that long when done.

Ron
I didn't crash. I just ran out of airspeed, altitude, and ideas all at the same time!
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09-10-2020 02:12 AM  5 months ago
DCORSAIR

rrVeteran

Selma, Calif.

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Seaviper I am starting work on my Funkey 600 AS350 project and will use those PhoenixTech mechanics. I just discovered those mechs on the Motion RC website the other day. Hopefully they will fit. I wish I had known about these PhoenixTech mechs back when I built the MD500.
You should be okay I would think, I had a Trex 600N in my Funkey AS 350 back in the days of nitro, the Pheonixtech mechanics are almost the same as the Trex I think, I don't remember any major modifications, let us know how those Pheonixtech mechanics work out for you, might order a set myself for future projects.
D. Lee.....t.Born again.t.....
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09-16-2020 11:28 PM  5 months ago
cobieg

rrApprentice

Florida

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Well, I glued a base plate in the bottom with hysol. Then I made up a mounting system. Just a simple rectangle base with a plate on top with a mirror one that the mechanics mount to. Joined with 6 3.5mm tee nuts and screws. A piece of felt will be between the plates to help dampen any vibrations.

It is bonded in place now. Battery placement on both sides.

Ron
I didn't crash. I just ran out of airspeed, altitude, and ideas all at the same time!
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09-24-2020 09:43 PM  5 months ago
cobieg

rrApprentice

Florida

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Well, I've ran out of time and excuses. Time to break out the saw and start the surgery on this tail to flip it and stretch it.
First, cut it off

Then cut off the right and left sides. A little switch-a-roo and some ca to tack together. Need a lot more shaping and glassed but, I feel good about it. I have a sleeve in the works to stretch it.

Ron
I didn't crash. I just ran out of airspeed, altitude, and ideas all at the same time!
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09-29-2020 05:30 PM  5 months ago
cobieg

rrApprentice

Florida

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I got the new main shaft and pushrods installed. The head sits up proud out of the fuselage now. Hope to fly the up-graded mechanics this week.

I made a sleeve from 1mm wood veneer that actually was a round box that a decorative candle or something came in. I got it wet and rolled it up to dry. made the shape and a couple thin coats of resin. I also made a hump that goes down the top. Waiting for hysol to cure.

Ron
I didn't crash. I just ran out of airspeed, altitude, and ideas all at the same time!
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10-05-2020 09:11 PM  4 months ago
cobieg

rrApprentice

Florida

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Turns out that there is a little more to switching tail rotor sides than meets the eye. Made a tail fin mount to mirror the other side. Mounted it on a little stub and layed up the glass over it using epoxy resin. First time that I have used it in this fashion. Pulled the cloth snug and it formed the shape, tacked in place with ca. Lightly brushed the epoxy over it and it held the shape, unlike polyester has done to me before and sagged. I am happy with the outcome so far. I have some more laying up now.

A lot of the material will be removed but, I am happy with it so far.

Ron
I didn't crash. I just ran out of airspeed, altitude, and ideas all at the same time!
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10-05-2020 11:38 PM  4 months ago
dgoss999

rrApprentice

UK - Lancashire

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Go easy on the tail weight!!!

DG
https://www.facebook.com/scale.skids.52
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10-06-2020 05:50 PM  4 months ago
cobieg

rrApprentice

Florida

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More tail weight! It is starting to look like something. Time for a sanding party tomorrow. I think that I will invite Sam Adams and have him bring about 12 of his friends. LOL

Ron
I didn't crash. I just ran out of airspeed, altitude, and ideas all at the same time!
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10-06-2020 07:06 PM  4 months ago
dgoss999

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UK - Lancashire

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It's now a hard balance between enough strength and too much weight.. Is the tailboom taking the weight of the tail gearbox and rear fin or are they just fixed to the fibreglass??https://www.facebook.com/scale.skids.52
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10-06-2020 09:38 PM  4 months ago
cobieg

rrApprentice

Florida

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dgoss999 Is the tailboom taking the weight of the tail gearbox and rear fin or are they just fixed to the fibreglass??
The mechanics are separate from the fuselage. There is a "doughnut" just forward of the splice. Just the fin screws on. I have no worries about balance. I would rather have a little overkill than it blowing off from the tail rotor. That would be embarrassing, lol. Besides, I may need the tail skid to help me out some day.
Ron
I didn't crash. I just ran out of airspeed, altitude, and ideas all at the same time!
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HomeScale✈️AircraftScale HeliScale Helicopter Main Discussion › 600 size Jet Ranger
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