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Hangar 9 1/4 Scale Piper Cub ARF???

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Old 04-02-2012, 12:09 PM
  #1201
Planejaw
 
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Default RE: Hangar 9 1/4 Scale Piper Cub ARF???


Quote:
ORIGINAL: cannonball200

John,,,great news on the good flights and the dle 20 ...
I have the dle 20 in my Cub & Waco..
Waco weighs 17 & 1/4# and J-3 weighs 16 & 1/4#..
Good info...my J-3 is ready to maiden.
Thanks,
Eddie
Sounds great Eddie. Keep us posted on the maiden!

BTW, spinning a Xoar 18X6 Lance propeller. Getting very good revs out of it (in the high 7's and low 8's if I remember correctly) and it's a scale diameter.
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Old 04-02-2012, 01:47 PM
  #1202
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Default RE: Hangar 9 1/4 Scale Piper Cub ARF???


Quote:
ORIGINAL: Planejaw

Four good flights on the J-3 with DLE-20. Plenty of power but not so much that it's ridiculous! Lots of one-wheel landings across the runway. This has to be the best aircraft to do that with!!

On one (standard OEM) tank of fuel, I was able to get 4, 10-minute flights, plus have enough left in the tank for the better part of a fifth. Didn't actually fly the fifth, was working on fine-tuning the engine. Had a ''miss'' that was occurring at mid and high throttle settings that no amount of low or high needle adjusting could eliminate. Going to replace the plug and check the ignition timing before the next flights. Other than that, the DLE-20 is a sweetheart of an engine and just sips gas!!
Did you use the CA hinges or did you replace them Robarts or pinned hinges? I was thinking that it would be ok to use the CA hinges with the DLE 20. Thanks

Howard
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Old 04-02-2012, 02:36 PM
  #1203
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Default RE: Hangar 9 1/4 Scale Piper Cub ARF???

Howard, Eddie here, I started to change mine over to robart hinges but decided to use ca hinges instead..

The ca hinges will work fine on this plane and it was a lot easier. My last hanger 9 100" cub had ca hinges
And had lots of flights without any hinge problems at all..
Eddie
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Old 04-03-2012, 03:07 AM
  #1204
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Default RE: Hangar 9 1/4 Scale Piper Cub ARF???


Quote:
ORIGINAL: Howard


Quote:
ORIGINAL: Planejaw

Four good flights on the J-3 with DLE-20. Plenty of power but not so much that it's ridiculous! Lots of one-wheel landings across the runway. This has to be the best aircraft to do that with!!

On one (standard OEM) tank of fuel, I was able to get 4, 10-minute flights, plus have enough left in the tank for the better part of a fifth. Didn't actually fly the fifth, was working on fine-tuning the engine. Had a ''miss'' that was occurring at mid and high throttle settings that no amount of low or high needle adjusting could eliminate. Going to replace the plug and check the ignition timing before the next flights. Other than that, the DLE-20 is a sweetheart of an engine and just sips gas!!
Did you use the CA hinges or did you replace them Robarts or pinned hinges? I was thinking that it would be ok to use the CA hinges with the DLE 20. Thanks

Howard
Howard,

I replaced all of the hinges with Robart 1/8" Point Hinges on the tail surfaces and DuBro 1/4 Scale hinges on the ailerons. I always replace the CA hinges. My preference over 47 years of building and flying. And I've even had the epoxy bond break on these type hinges in rare occasions, so I know it can happen. I think more "stout" hinges, if nothing else, have a longer useful life in an aircraft, particularly one where your running a gasoline engine and prone to much more vibration. And I'm not a 3-D flyer!!
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Old 04-07-2012, 02:12 PM
  #1205
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Default RE: Hangar 9 1/4 Scale Piper Cub ARF???

Im attaching the tail wires. Top ones are easy enough, what about the bottom wores? No location info in the manual.....for that matter, no info on where the tail wheel sits. Am i trying to line up the rearward tailwheel hole so the wires sit straight? Thanks!
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Old 04-08-2012, 09:10 AM
  #1206
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Default RE: Hangar 9 1/4 Scale Piper Cub ARF???

hidaven, There should be two holes in the aft bottom fuselage that you will need to remove the covering from those two holes to attach the tail wheel assembly. Look closely and you should be able to see where those pre-drilled holes are. There should already be blind nuts installed in the holes so be careful when using your hobby knife not to nick the threads of the blind nut as that can make the bolt not thread in easily. The bottom tail support wires will attach to the furthest rearward hole in the fuselage with the rear bolt for the tail wheel assembly.

Use blue Loctite (#242) on EVERY metal to metal nut and bolt. But! NEVER use Loctite with plastic nuts and bolts or with the metal locknuts with plastic in them. The Loctite will deteriorate the plastic and cause it to fail.

Fly
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Old 04-10-2012, 07:16 PM
  #1207
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Default RE: Hangar 9 1/4 Scale Piper Cub ARF???

Planejaw,

Could you post pics of your throttle arrangement with the DLE-20?

Thanks,
BB
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Old 04-11-2012, 02:42 AM
  #1208
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Default RE: Hangar 9 1/4 Scale Piper Cub ARF???


Quote:
ORIGINAL: BlitzPig

Planejaw,

Could you post pics of your throttle arrangement with the DLE-20?

Thanks,
BB
I'll shoot some photos in the next couple of days.
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Old 04-11-2012, 09:42 AM
  #1209
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Default RE: Hangar 9 1/4 Scale Piper Cub ARF???

Started building mine today...took a little break and thought I would post some pics
Motor standoffs came up 1/8" short so I sandwiched the drilling template between the standoffs and the firewall after covering with aluminium and machine turning.
E-Flite Power 160
NanoTech 10s 35-70c 5000mah
Castle HV120 v2 esc
Dubro 6" air tires
Did not do the Oring conversion yet...the springs feel super stiff....wondering if they are using better springs these days...I bought a bag of Orings just in case

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Old 04-12-2012, 12:09 PM
  #1210
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Default RE: Hangar 9 1/4 Scale Piper Cub ARF???

Kinda torn between using a BEC or RX pack....I have both....the BEC is certainly lighter but not sure that makes any real difference on this plane.
I have a brand new Castle BEC Pro that's good up to 12s and I have 2 brand new Lipo 2100mah RX packs.
What do you guys think?
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Old 04-12-2012, 01:25 PM
  #1211
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Default RE: Hangar 9 1/4 Scale Piper Cub ARF???


Quote:
ORIGINAL: Bob dunlop

Kinda torn between using a BEC or RX pack....I have both....the BEC is certainly lighter but not sure that makes any real difference on this plane.
I have a brand new Castle BEC Pro that's good up to 12s and I have 2 brand new Lipo 2100mah RX packs.
What do you guys think?
I use a separate rx battery on my giant electrics 1/3 scale L-4 and 1/4 scale Fokker DVII... It just seems better to have redundancy.

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Old 04-12-2012, 02:47 PM
  #1212
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Default RE: Hangar 9 1/4 Scale Piper Cub ARF???

Hey Bob, where did you get that adjustable plane stand you are using? Looks very handy.
Thanks,
lumpy649
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Old 04-12-2012, 03:28 PM
  #1213
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Default RE: Hangar 9 1/4 Scale Piper Cub ARF???

The stand came from Ronny Garris...Rgarris@aol.com.....he advertises them here at RCUniverse
You can email him if you want one...they are very handy
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Old 04-12-2012, 07:42 PM
  #1214
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Default RE: Hangar 9 1/4 Scale Piper Cub ARF???


Quote:
ORIGINAL: GalenB


Quote:
ORIGINAL: Bob dunlop

Kinda torn between using a BEC or RX pack....I have both....the BEC is certainly lighter but not sure that makes any real difference on this plane.
I have a brand new Castle BEC Pro that's good up to 12s and I have 2 brand new Lipo 2100mah RX packs.
What do you guys think?
I use a separate rx battery on my giant electrics 1/3 scale L-4 and 1/4 scale Fokker DVII... It just seems better to have redundancy.

When you say "redundancy" are you saying you run 2 RX packs or a BEC and a battery?
Thanks,Bob

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Old 04-13-2012, 10:15 AM
  #1215
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Default RE: Hangar 9 1/4 Scale Piper Cub ARF???

Bob,
I think electric wires need a grommet in the hole when ran thru metal firewalls. Prevents the metal from wearing thru the wire insulation.
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Old 04-13-2012, 11:10 AM
  #1216
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Default RE: Hangar 9 1/4 Scale Piper Cub ARF???

Quote:
ORIGINAL: Bob dunlop


Quote:
ORIGINAL: GalenB


Quote:
ORIGINAL: Bob dunlop

Kinda torn between using a BEC or RX pack....I have both....the BEC is certainly lighter but not sure that makes any real difference on this plane.
I have a brand new Castle BEC Pro that's good up to 12s and I have 2 brand new Lipo 2100mah RX packs.
What do you guys think?
I use a separate rx battery on my giant electrics 1/3 scale L-4 and 1/4 scale Fokker DVII... It just seems better to have redundancy.

When you say ''redundancy'' are you saying you run 2 RX packs or a BEC and a battery?
Thanks,Bob

Redundancy is not the best word to use here... I think having an rx battery that is separate from the motor battery is a good idea. Any failure in the motor system, batter, ESC, etc should still allow for a normal dead stick landing. When using a BEC this may not be the case. This is how I setup my giant scale electrics... These planes use 5000-5800 mah 10 cell batteries and 90+ amp ESC...
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Old 04-13-2012, 11:16 AM
  #1217
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Default RE: Hangar 9 1/4 Scale Piper Cub ARF???

That big they are really tail heavy and are not much fun just a flat flying plane not aerobatic.

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Old 04-13-2012, 11:30 AM
  #1218
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Default RE: Hangar 9 1/4 Scale Piper Cub ARF???


Quote:
ORIGINAL: ZX11

Bob,
I think electric wires need a grommet in the hole when ran thru metal firewalls. Prevents the metal from wearing thru the wire insulation.
I agree...just have not had a chance to run over to Lowes yet

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Old 04-13-2012, 11:34 AM
  #1219
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Default RE: Hangar 9 1/4 Scale Piper Cub ARF???

I think you are correct...a separate RX battery will be the safest solution...that's what I'll do...thanks for helping me make up my mind
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Old 04-13-2012, 11:46 AM
  #1220
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Default RE: Hangar 9 1/4 Scale Piper Cub ARF???

Hi all.......going electric with a power 160 on 10s and a xoar 18x10. The collet or shaft is 12mm! Thats a big hole! Should I get a 12mm bit? Hope theres enough wood left on the hub!

Lastly, my freakin cowl opening is 5.5 NOT 6 inches off the firewall!!
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Old 04-13-2012, 12:38 PM
  #1221
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Default RE: Hangar 9 1/4 Scale Piper Cub ARF???


Quote:
ORIGINAL: hidaven

Hi all.......going electric with a power 160 on 10s and a xoar 18x10. The collet or shaft is 12mm! Thats a big hole! Should I get a 12mm bit? Hope theres enough wood left on the hub!

Lastly, my freakin cowl opening is 5.5 NOT 6 inches off the firewall!!
You need a 12mm reamer. They are available from Tower... http://www3.towerhobbies.com/cgi-bin...&I=LXNL18&P=ML
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Old 04-14-2012, 08:07 PM
  #1222
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Default RE: Hangar 9 1/4 Scale Piper Cub ARF???

I'll probably get mine in the air next week so while I'm thinking about it...is the recommended cg in the manual correct or have you guys found something else?
Thanks in advance ,Bob
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Old 04-15-2012, 04:51 AM
  #1223
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Default RE: Hangar 9 1/4 Scale Piper Cub ARF???

Hi guys!

I just picked up a dle 30 that I feel would power the plane nicely. Can anyone show me some photos of their installs? I am thinking that the normal stand off's might be to long? I am also wondering about how/where the fuel tank should go- let me know guys - thanks!

Best,

Chris
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Old 04-15-2012, 02:19 PM
  #1224
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Default RE: Hangar 9 1/4 Scale Piper Cub ARF???

Blitzpig, Here are my throttle and tank hook up pictures. My J-3 is finished and tuned and ready for the test flight. Just waiting on the tornado's and wind to get past. The throttle and choke arms are PSP brand for the Walbro ordered from Chief Aircraft. They have dual set screws to keep them tight. The fuel filler is the gas version by slimline also from Chief Aircraft...
Thanks,
Eddie
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Old 04-15-2012, 02:48 PM
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Default RE: Hangar 9 1/4 Scale Piper Cub ARF???

Cool beans! Thanks for the info..

BB
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