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ACE RC 4-120 BIPE KIT BUILD

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ACE RC 4-120 BIPE KIT BUILD

Old 03-08-2010, 06:10 PM
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cherry629
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Default ACE RC 4-120 BIPE KIT BUILD

Hi Guys,Let's build a classic kit!!!With your help of corse.Want to do a few mods,4 servos in wings,a rounder tail,add some N struts,bombay doors.Ribs are not crushed, but need help to fall out,nice wood so far.Working on ribs tonight,will get the glue out tomorrow.Any build ideas will be valued,the first of pics.I know we all like lotsss of pics LOL. Thanks Les
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Old 03-09-2010, 11:24 AM
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Default RE: ACE RC 4-120 BIPE KIT BUILD

Hey Guys,What do I have to do to get pic smaller?Iknow we like pics but that is crazy!!!Got the ribs ready to go,need to cut some sheeting to get top wing started.Have some pics later. Les
Old 03-09-2010, 04:33 PM
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Default RE: ACE RC 4-120 BIPE KIT BUILD

Well got the first wing half dry fit, cut slots for servo extension in ribs.This builds like a cross between a Senior Telemaster and a Sig Hog bipe.Well back to the ca. Les
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Old 03-09-2010, 06:16 PM
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Default RE: ACE RC 4-120 BIPE KIT BUILD

Hey Cherry, I looked at the ACE website and I guess your bipe is a classic.  I do not see it offered anymore.  I am dyin to get m,y hands on a largish bipe kit.  I would love to build the 33% Waco from AMR but it is around $1800 for the kit.  My wife would lose it, and me if I spent that kinda money without taking her to the islands first.  And unfortunatly for me I cant do both. 
So, if you know where I can get my hands on another of those kits please let me know.  And keep the pics coming brother.  It looks good so far.
Old 03-09-2010, 06:58 PM
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Default RE: ACE RC 4-120 BIPE KIT BUILD

Looking good,I have this same kit new in box I acquired some years back,even have the modification plans published by R/C modeler,looking forward to following your build.
Old 03-09-2010, 09:45 PM
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Default RE: ACE RC 4-120 BIPE KIT BUILD

Hi Guys,Thanks for the good word,Man is the wood in this 30 year old kit is sweet!!! Spruce spars are straight as an arrow,Balsa nice and firm.Well got a good dry fit,CAed the ribs and top spars,got wing mount plate epoxed in.Traced out some rib templets need to cut out 4 to get N struts mounted.I can't beleive this big plane did'nt have them.Ok a little more sheet and leading edge,sheer webs are cut to havent tryed them yet maybe not much trimming.Well break is over back to work.Thanks Guys more pics
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Old 03-10-2010, 11:43 AM
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Default RE: ACE RC 4-120 BIPE KIT BUILD

Hey Guys,Slow start today,sheer webs done,leading edge done,after lunch I'll get 3 small spars glued in and more pics.Hey stevenmax50,This is a ACE RC long out of buessnes,There was one on ebay the outher night.Well off to get some chow. Les
Old 03-10-2010, 03:03 PM
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Default RE: ACE RC 4-120 BIPE KIT BUILD

Hey Guys,Got some more pics!!After 3 small top spars,flip wing over and put front mount plate in with 30min epoxy.Then finish sheeting on wing bottom.Now some sanding before trailing edge cap.Want to put a Saito 125 GK in it they are purrdy.Been looking for a good used one,It'l fit in a UnionVille 8' raidial beaver kit I have also.Ok time to make some dust.Talk later Les
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Old 03-11-2010, 01:46 PM
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Default RE: ACE RC 4-120 BIPE KIT BUILD

Hi Guys,Trailing edge on wing half 1 is on,Puting servos out where bellcrank went.Drill holes in ribs for sevo ext to pass,Will beef it up a little in servo bay.Top wing has some diehedral built in,make a gauge to set root ribs.
Wing half #2 under way,ribs glued in and sheeting, spars installed.Both wing halfs make a long top wing 70",bottom wing will be 62 1/2".Well trailing edge is on wing half #2,mounting plates,and front sheeting is done.Need to put holes for servo ext to pass thru next to mount plate.Then finish sheeting top of wing,sand ends flush and install wing tips,Ok let's git r done!!! Thanks Les ps PINK FLOYD is jamming so time to sand.
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Old 03-11-2010, 09:50 PM
  #10  
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Default RE: ACE RC 4-120 BIPE KIT BUILD

What the heck are all those lead weights from? 
Old 03-11-2010, 10:11 PM
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Default RE: ACE RC 4-120 BIPE KIT BUILD

Fishing sinkers! Weigh about 21/2 pounds.There for walleye fishn in St Clair river,strong current!!
Old 03-12-2010, 12:33 AM
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Default RE: ACE RC 4-120 BIPE KIT BUILD

I heard aout them yankee fish,  I thought they looked scrawney.  Guess they are tougher than they look. 
Old 03-12-2010, 01:05 AM
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Default RE: ACE RC 4-120 BIPE KIT BUILD

MMMMMM,They may be scrawney but they are tastey.Throw the big spawners back eat the 2 pounders.Man your maken me hungry LOL. Les
Old 03-12-2010, 09:09 PM
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Default RE: ACE RC 4-120 BIPE KIT BUILD

Hi Guys,Got the 1st half of bottom about done,Trying something new on this build.The assembly manual wants you to spray adhesive on wax paper,then stick spars and sheeting down, no pin holes,works really good as long as you have lots of lead to hold flat.
Glue in ribs and top spars,was missing 2 small top spars 1/8x3/16 cut some out of pine,fit good,now I can finsh sheeting.These wings build fast,still have alot to do on them,wing tips,servo mounts,lots of sanding.This is going to be a cool old bipe!!!Well the last wing half is dry fit now,time to glue.More pics. Les
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Old 03-13-2010, 10:52 PM
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Default RE: ACE RC 4-120 BIPE KIT BUILD

Hey Guys,Got all 4 wing panels done,now wing tips,servo mounts,N strut mounts.Not going to glue wing panels together yet,takes to much room.The fun stuff is yet to come,soldering cabine struts,never done that stuff yet.Well some helpful hints would be good.Pics of wing tips tomorrow.Thanks Les
Old 03-15-2010, 07:53 PM
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Default RE: ACE RC 4-120 BIPE KIT BUILD

Hey Guys,This stuff took some xtra time.Wing tips are done,wing tips are 1/8" ply, after gussets I put a 1/4" band of balsa around edge top and bottom.Did them thing on my Sig Hog bipe,makes the tips a little thicker,easer to cover to.Boxed in new servo bays,cut some 1/8" ply servo covers got them all fit,put 1/4"sq hardwood around bay to screw covers to.A little more custom work to do then back to the manual.Bottom wing has more diehedral than the top,so some N struts will be fun to fab.Well back to work. Les










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Old 03-20-2010, 12:19 PM
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Default RE: ACE RC 4-120 BIPE KIT BUILD

Hi Guys,have a little more sanding on leading edge of top wing halfs,then I can epoxy them into one wing.Have fuse up to cabin strut
soldering,will post pics of fuse build later. Les
Old 03-22-2010, 09:38 PM
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Default RE: ACE RC 4-120 BIPE KIT BUILD


ORIGINAL: stevenmax50

Hey Cherry, I looked at the ACE website and I guess your bipe is a classic. I do not see it offered anymore. I am dyin to get m,y hands on a largish bipe kit. I would love to build the 33% Waco from AMR but it is around $1800 for the kit. My wife would lose it, and me if I spent that kinda money without taking her to the islands first. And unfortunatly for me I cant do both.
So, if you know where I can get my hands on another of those kits please let me know. And keep the pics coming brother. It looks good so far.
Check out the BUSA Pheaton bipes. They should fly really well. I am currently starting a 96" Lazy Ace bipe. It is a scratch build though. It is supposed top fly very well.
Old 03-22-2010, 10:11 PM
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Default RE: ACE RC 4-120 BIPE KIT BUILD

Hey guys,Yes I have a BUSA Pheaton 90 kit to build and a BUSA EAA BIPE kit also.So little time so many kits lol. Les
Old 03-22-2010, 10:24 PM
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Default RE: ACE RC 4-120 BIPE KIT BUILD

Hey vertical grimmace,my first scrtch build will be a Waco Cabin bipe,them are so kool,got to have one.Get plans from Model Airplane News. Les
Old 03-23-2010, 07:48 AM
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Default RE: ACE RC 4-120 BIPE KIT BUILD

I have a bipe on my watch list on ebay.  It probably will go over my limit be a guy can hope cant  he? 

So Cherry, I have done alot of soldering over the years.  To solder cabane wiring you will need a very hot iron.  I recently bought a mini propane torch from Lowes.  I used it to heat a nose gear wire so I could bend it.  It gets plenty hot.  And fast.  An electric iron will work but I liked the propane torch alot better.  Instant heat exactly where I need it.  You also need to use silver solder.  It can still have a percentage of lead, but the less lead the better.  It obviously costs more but it is worth it. 
Old 03-23-2010, 02:08 PM
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Default RE: ACE RC 4-120 BIPE KIT BUILD

Thanks stevenmax50,that is exactaly what I have,we soldered some landing gear for my floats a couple weeks ago,came out prety good.I have to clean wires yet will solder tonight.Thanks for the info,need to get pics caught up to where I'm at on build.Thanks Les
Old 03-23-2010, 08:35 PM
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Default RE: ACE RC 4-120 BIPE KIT BUILD

Hi Guys,heres some fuse build pics,30 min epoxy on fuse doubler,thin ca on formers,landing gear plate,cabane trunion blocks,fuse bottom.
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Old 03-23-2010, 08:48 PM
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cherry629
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Default RE: ACE RC 4-120 BIPE KIT BUILD

Hey Guys,some more pics,aft fuse stringers,float mounting block,rear of fuse horizontal stab mount plate,a cabin bipe?no a kool
jig for soldering wing struts.Thanks Les
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Old 03-23-2010, 09:03 PM
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Default RE: ACE RC 4-120 BIPE KIT BUILD

Ok Guys,this gets us caught up to where I,m at on build,make a two peice wing into one,got 1"total diehedral in top wing,30min epoxy
wing halfs together.Kool a 1 peice wing 70"span,laid 2oz fiberglass mat on center of wing overlaping 1",used 30min epoxy,laid a 1 1/2"
band of fiberglass tape down center,used finishing resin over all that,removed excess with card.Alittle mocf up,good size plane.
Thanks Les
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