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J-3 cub Identifly.

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Old 04-08-2013, 01:05 PM
  #26  
reelquick
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Default RE: J-3 cub Identifly.

It was the motor.
I was using 11-9 wood prop M- Air screw electric.
No watt meter. Yet.
Old 04-08-2013, 04:32 PM
  #27  
blvdbuzzard
 
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Default RE: J-3 cub Identifly.

Running an11X9 seems to be a bit much. You did find out it would do it, but not for very long.

Well, you can try to put the magic smoke back in? I have never been able to.

I have burned up a lot of stuff learning E power. It is sort of the badge of E power.


Buzz.
Old 04-09-2013, 12:33 PM
  #28  
reelquick
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Default RE: J-3 cub Identifly.

Smoke went out the window before I could grab it.
So your saying go to a 10 prop ?
Badge of honer, is staring to look like a bind and fly badge, till I figure out what I`m doing.
Old 04-09-2013, 06:36 PM
  #29  
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Default RE: J-3 cub Identifly.

Now where is the fun of doing it right the first time

Well you could have used an 11X7, 11X6, 11X5. This is where and why a watt meter is needed.

Lets say you wanted to run the 11X9 prop. You start with a 10X6 to see how many watts you have. Then you try an 11X5 Then step up until you know you can run the 11X9 or you find you are at the limit of the ESC, motor or battery. A bunch of props is cheap when you figure out how much it costs to burn a few motors and ESC's.

Last time I let the smoke out was with a 5055 motor and a 6s battery. The ESC went up. Glad I did not loose the $150.00 battery, $60.00 motor. I just lost the $45.00 SEC, and a pair of shorts.


Buzz.
Old 04-10-2013, 01:49 PM
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reelquick
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Default RE: J-3 cub Identifly.

You dont drag race do ya ?
I try to get things right the first time.

Gonna choke the guy at the LHS ! Yeah ...that looks good.....great answer?
Cause the prop turned ? You $%^#$@#%%^$.
Im gonna order what what you recommended in previous posts to get this girl air born with out the ( magic smoke) cause I like her due to the all balsa construction .

My cabbage garden sprouted, by the sweat and my aching back, ( gonna kill my guidance consular) ,
And tower has free shipping so might get a B_F to take the edge off or get the .50 Raptor heli back in the air .
Thanks for the help web was down due to maintenance.
Funny I have to get advice from some body on the other coast of the USA. And these guys are 6 blocks away.
Now thats fun.
Thanks. Still at it.
Old 04-10-2013, 05:20 PM
  #31  
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Default RE: J-3 cub Identifly.

Well yes I did do a lot of drag racing. Blew the hell out of a truck load of 327's. We managed to kill almost every motor we built. We tried every thing, water injection, water/alcohol injection, NOS, and so on. We were running well past the raged edge. It look good on paper. But real life has a way to say NOPE, you going to break!!! We had a good free supply of parts. Buddies dad own a wrecking yard. Lots of junk to build and break.

If you work with the online calc tools, they will help. They are about 10% or so from what you may read when you run them up.




Buzz.
Old 04-13-2013, 03:09 AM
  #32  
reelquick
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Default RE: J-3 cub Identifly.

Thats too funny. Miss those days. Awesome you guys have a ton of parts to experiment with.
I`m not giving up.
Old 04-22-2013, 11:38 AM
  #33  
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Default RE: J-3 cub Identifly.

Order placed......let you know what happens.
Old 05-01-2013, 05:08 AM
  #34  
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Default RE: J-3 cub Identifly.

It`s together ! Not pretty, the can was longer than the cowl.I can cut that out
I put the biggest prop on her I have 11 x.5.5 Man it blew everything off my bench.
I checked the ballance from 2 marks I found on the fuse under the wing. Feels good.

Now if I could just get this @%#$%!!$ wind to stop blowing !
Its taking every fiber of my being not to go test it.
I am a novice pilot and have been down that road of letting my excitment over ride my better judgement.
Gotta stop blowing some time.
Thanks again.

Old 05-01-2013, 04:42 PM
  #35  
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Default RE: J-3 cub Identifly.

The ole bench clearing method. Yeah, I too have used that one.

She should balance on the spar.

You should be able to cruise around at 1/2 throttle or less. Should not have a problem with being under powered

Let me know how the re-maiden goes.


Buzz.
Old 05-02-2013, 11:32 AM
  #36  
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Default RE: J-3 cub Identifly.

After 2 trips to the house for servo reversing DUHHHHHHH [:@] . New TX Futaba 6 fasst. Very new to me
I got her squared away pretty good, of coarse the wind picked up and I was nervous as heck, with the shiny mono coat and all.

I had to move the 2200 batt all the forward as I could to get a decent CG off the wing spar as you mentioned.

I have flown foamies and to cut the power and make a mistake it was no big deal.With this, the thought of pieces were in my head the whole time.

The heck with it ! Its only money and I can make more!

Advanced throttle,a little up on elevator and she was up.
ALOT faster than I thought she would. 25 feet.
Took me by surprise, leveled out kinda, I was running out of room and went for ailerons and there were none, ooops.]
Right rudder, nose dipping, kids came outta no where, she flew like a brick.
Mind you I was only at 1/4 throttle.
Brought her back in touched down and she flipped in the tall grass.

WOOOOOHOOOOO She FLYS !!!!.
Broke off the home made motor mount .No big deal. Time to retool.
Better motor mount, larger flying field, and open her up a little bit more. I think it was more of a staling issue.I was afraid to hit the juice. I have epoxy .
Thanks again for all the help. It really boosted my confidence!
Old 05-02-2013, 12:28 PM
  #37  
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Default RE: J-3 cub Identifly.

Oh! schould I just chop off what they had in my original picture of the motor mount and go directly to the fire wall ?
Or do I have to get a stand off mount.
I have some aluminum stock around here.
I`m sure by moving the motor in, my CG will be furthere back.
Sorry i`m rammy and wanna start cutting.
Old 05-02-2013, 02:52 PM
  #38  
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Default RE: J-3 cub Identifly.

I would remove all of the junk that was there and start clean from the fire wall. You can make a simple ply box, buy a motor mount, make stand offs. You could cut a slot in the firewall to slide the battery into to move it forward.

Do you have the rudder hooked up to the left hand stick? As in throttle and rudder are on the same stick? If so, putting the rudder on the right stick makes it easier to fly, just like ailerons. I set my 3 channel planes up with the rudder and elevator on the right hand stick and only throttle on the left stick.

Once you get her trimmed in, she will glide pretty well.

Sounds like you had a good re maiden flight.

I may build a foam version of this plane. I have been using up a lot of dollar tree foam. A buck a sheet is hard to pass up.


Buzz.
Old 05-03-2013, 04:11 AM
  #39  
reelquick
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Default RE: J-3 cub Identifly.

Ordered a great planes adjustable mount.
Gonna chop the front clean and start fresh.
I`ll give switching sticks a shot, not a bad idea for 3 channel birds.
I`ll be back.
Old 05-03-2013, 05:25 PM
  #40  
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Default RE: J-3 cub Identifly.

Is this a threat, promise or channeling your inner Schwarzenegger?

"I`ll be back."

Looking forward to it. i want to know how she flies!!


Buzz.
Old 05-03-2013, 06:11 PM
  #41  
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Default RE: J-3 cub Identifly.

LOL ,
Well if I lived in the High Hills of the desert I would fire up one of these nitro ****`s thats hanging in my basement and be back tomorrow. never flew one but tried.
My Raptor 50 is straightened out......but wind scares the HELL outta me......rebuild time...not the cost as much. She hover`s. and every time she goes up and comes down in one piece THATS A GREAT DAY ! Takes the edge off...at least Im flying .
Trying to get the boat in the water...too many toys ..but thats what its all about. Like you with cars..You Know.
Was looking at the kits they have.
For 2 bills ya can get your self a trainer from hobby partz . W the RX.

OH I have a funny story for you ..I was reversing the servos on the cub, and had a full beer on the coffee table, well guess what a 12.8 apc prop can do to a beer can ?
Thank GOD the bride wasant home!
Cat took off! I was on windex detail for the next 30 mins.
At least it was ant a finger.
I have a WHOLE new respect for LiPos.

Old 05-04-2013, 07:26 AM
  #42  
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Default RE: J-3 cub Identifly.

When you get full power out of a small electric motor and a big prop. Scares the fertilizer out of you.

Yes, the air moved by the prop can move a lot of things. I had it blow a Tx off the bench. Glad it was one of the RTF 4 channel Tx's I did not need.

The more I work with "E" power, the more respect I have for the energy in the lipos.

When you get her up and flying, you will see that you will cruise around at 1/3 throttle and have a long long flight. Yet, if you want to do a vertical take off, you can do that too.

I am working on making a few foam cutting tools right now. Plus I am getting my reloading stuff all setup. So I have to many toys too.

I built this foam cutter a couple weekends ago.

I am going to build a BFU. Big Flat Ultimate. It uses the same power system you have in the Cub. I wil lbe building two of them. One will have a flat wing and the other will have a nice air foiled wing. I want to see how the compare.

http://www.youtube.com/watch?v=z-IvdLhEqfM


Buzz.
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Old 05-04-2013, 10:19 AM
  #43  
reelquick
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Default RE: J-3 cub Identifly.

Thats funny i was at the range yesterday,worked up a load for a 44 carbine 12.5 grns of tight group. 2-3 inch groups at 100.
That cutter is neat, does it work by heat ?
Old 05-05-2013, 07:36 AM
  #44  
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Default RE: J-3 cub Identifly.

That is a hot wire foam cutter. It uses a door bell transformer to heat the wire. The dimmer switch controls the heat. You can make templates out of cheap 1/8 plywood, then cover the edge with copper foil tape to give a nice edge for the wire to slide on that will not burn. I will use it for mostly free had and straight cuts.

I just opened the box on a Lee 50th anniversary kit, 223, 30-30 dies.

I have some supplies on the way for my wet tumbler. Soon I will be knee deep in brass casings.


I need a bigger garage.


Buzz.
Old 05-07-2013, 03:01 PM
  #45  
reelquick
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Default RE: J-3 cub Identifly.

That vid was AWESOME !! Thanks!
Old 05-09-2013, 04:18 AM
  #46  
reelquick
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Default RE: J-3 cub Identifly.

Waited for the rain and wind to stop and found a new field .
Put rudder on right stick,Checked everything, advanced throttle.
Up she went to 20 feet and tried right rudder, right rudder, right rudder oh oh.
She kept going straight ???? Towards the trees decreased throttle ,but she was committed.

Thank goodness, clipped L wing tip off ,spun around clipped R wing tip off and landed in the street on both wheels avoiding the lexus parked 5 feet away.

Whew....close call. Dont know what happened ? Maybe more throw is needed ?
Very clean break. Will flat wing tips work ? Should I post in the crash and rebuild forum?
Can I smooth out the last spars on the ends and recover them ?
It was a 48 wing span now its a 46. .
Did go home and hovered my Raptor 50 for a tank just to make my self feel better.
Back to the bench.
Old 05-22-2013, 08:05 PM
  #47  
blvdbuzzard
 
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Default RE: J-3 cub Identifly.

Well sounds like you are getting the bugs worked out of it. or you are just going to take them a piece at a time .

I have had some Internet access issues lately. So I have not been around.

When I set mine up, I made sure I got as much rudder as I could and then about 60% with dual rates. She does not need much. 1 inch of throw should make her turn, more is just more fun

I have a few parts of the BFU cut out. Just need more time.


Buzz.
Old 05-23-2013, 01:08 PM
  #48  
reelquick
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Default RE: J-3 cub Identifly.

WIND WIND WIND !!!!!!!!
Shes ready to go! I fixed the wing tips and made them flat.
I could not have asked for a better oooops.
I have been jerking around with an EP trainer 4 channel foamie ,but again WIND !!!!
God I love foamies, glue and tape !
Old 05-26-2013, 04:13 PM
  #49  
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Default RE: J-3 cub Identifly.

I hear you about the wind. It is blowing at about 45 right now out there. Been one of the windiest spring I can remember.'



Buzz.
Old 06-01-2013, 01:04 PM
  #50  
reelquick
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Default RE: J-3 cub Identifly.

I got up Way early because the wind don't start till it sees me putting the J 3 in the back of the truck .
Happy I did.
Put her on the lawn,very bumpy,11-8 prop, left stick advanced little up on the right and she jumped off the ground again.
Wholly smokes! This set up you set me up with got some arse. TU.
Got her level and was running out of room , killed the throttle and she stayed up ??? No elevator. Neutral on the R stick.
It was like a kite.
Got her down with a busted prop.
Had a 10-7 apc threw it on and went back at it. Again jumped off the ground. I think I could put a 12 inch ruler with a hole drilled in the 6 for a prop.
Pulled 2 turns around the field and my friend the wind showed and i got scared. Newbie Tail Dragger and self taught .
I need to get back on the Sim.Muscle memory a bit week.
Just wanted to say TU for all your help! I`ll be back out at it with more confidence than ever.
Time to re power my trike trainer


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