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Conference vmszoo::rc

Title:Welcome To The Radio Control Conference
Notice:dir's in 11, who's who in 4, sales in 6, auctions 19
Moderator:VMSSG::FRIEDRICHS
Created:Tue Jan 13 1987
Last Modified:Thu Jun 05 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:1706
Total number of notes:27193

164.0. "ACE 4-20 Biplane" by ANKER::ANKER (Anker Berg-Sonne) Mon May 11 1987 17:23

                Because of  the  decreasing  challenge  of flying a PT-20
        with an O.S.    FS20  I  decided to retire (for crash backup) the
        airframe and purchase an  ACE  4-20 Biplane.  Any experience with
        this kit?
        
        Anker
T.RTitleUserPersonal
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164.1No such animal.TALLIS::FISHERBattery, Mags, & Gas Off!Tue May 12 1987 16:5223
>< Note 164.0 by ANKER::ANKER "Anker Berg-Sonne" >
>                             -< ACE 4-20 Biplane >-
>
>                Because of  the  decreasing  challenge  of flying a PT-20
>        with an O.S.    FS20  I  decided to retire (for crash backup) the
>        airframe and purchase an  ACE  4-20 Biplane.  Any experience with
>        this kit?
>        
>        Anker

The ACE 4-20 is not a Biplane.
Only the ACE 4-40 comes in a Biplane version.  
But the 4-20 looks like a nice plane.

There aren't many small Bipes, but there aren't many small four strokes.

              _!_
Bye        ----O----
Kay R. Fisher / \
 
==============================================================


164.2RCM reviewAKOV01::CAVANAGHWell, I&#039;m up here, how do I get down?Wed May 13 1987 10:4128
   The May issue of RCM has a product review of the ACE 4-40 Bipe.
The 2 line summary reads as follows:

   WE LIKED THE:
	Construction features, flying characteristics.
   WE DIDN'T LIKE THE:
	Small fuel tank compartment, short wing spars (minor).

  The review says things like 'The 4-40 Bipe is reputed to be a 
"Pilot Friendly" airplane, with excellent ground handling characteristics
and capable of slow and stately flight maneuvers.  The design has certainly
accomplished that.' and, 'No surprises whatsoever!  All the basic aerobatic
maneuvers are easily within the capabilities of the 4-40 Bipe, and attained
with smoothness, thanks to the generous wing area.  Takeoffs and landings 
are about the easiest of any taildragger we've flow.'

  Their conclusion was:

    'Though the 4-40 BIPE is not a beginner's airplane, any builder/flier
with a moderate amount of experience should not encounter any problems
with either construction or flying.  Even the experienced flier will enjoy
the flight characteristics.'


  
       Jim C


164.3I'm confusedANKER::ANKERAnker Berg-SonneWed May 13 1987 10:4512
        Re:< Note 164.1 by TALLIS::FISHER "Battery, Mags, & Gas Off!" >

                There's some  confusion  about the ACE mono and biplanes.
        RCM in their  review  of  the  4-40 biplane states that there are
        biplanes in all sizes.   There was also an ad from a company with
        the 4-20 biplane, which I ordered.  When the kit arrived it was a
        4-40 bipe, so you may be right.
        
                Back to the question, slightly revised.  Does anyone have
        experience with the 4-40 bipe?
        
        Anker
164.4There is a listing for a 4-20...AKOV01::CAVANAGHWell, I&#039;m up here, how do I get down?Thu May 14 1987 12:0210
	>There was also an ad from a company with
        >the 4-20 biplane, which I ordered.  When the kit arrived it was a
        >4-40 bipe, so you may be right.
        

   You are right!  In RCM, there is an ad for Sheldon's Hobby Shop.  They 
list an "ACE 4-20 4/cycle Sport Biplane".  I think this must have been a
misprint.

  Jim C
164.5Sheldon's it wasANKER::ANKERAnker Berg-SonneThu May 14 1987 14:089
        Re:< Note 164.4 by AKOV01::CAVANAGH "Well, I'm up here, how do I get down?" >

        Yup,
        
                They are  the ones I ordered it from.  Not a big problem,
        except buying a  new engine.  I really like the O.S.  FS40 Bypass
        which will probably make this plane a screamer.
        
        Anker
164.6An early reviewANKER::ANKERAnker Berg-SonneWed May 20 1987 13:5824
        Re:< Note 164.0 by ANKER::ANKER "Anker Berg-Sonne" >

                I'm in  the  midst of building the kit and though I might
        give a review.
        
                The kit is very easy to build for an experienced builder.
        The  materials are well below Great Planes in finish, and require
        a fair amount of care to come out right.
        
                The fuse is  made  from  ply and is solid as a rock, this
        plane is going to be able to fly straight into the ground without
        a scratch.  The only problem is that the ply parts aren't stamped
        out terribly well and when you  pop them out they tend to rip the
        ply on the back.  This wouldn't  be a problem except for the fact
        that both sides come from similar sheets, so  one  of  the ripped
        sided will be on the outside.
        
                The wings are fairly straight forward to build.
        
                The instructions are really skimy.  Unless you have built
        a kit before you will have a lot of difficulty  understanding how
        to do it.
        
        Anker
164.7Not as strong as it looks...LEDS::SMITHThu May 21 1987 08:4921
    As far as flying into the ground... I just completed the Ace 4-40
    last friday and attempted to fly it saterday morning.  The take
    off roll was straight but as soon as the plane came off the ground
    it rolled a little to the left and I overcontrolled with too much
    right (too much airleron throw).  The right wingtip hit the ground
    and it did a 180 and pancaked onto the ground.  It didn't hit hard
    enough to break the wood prop but the fuse broke cleanly in half
    at the trailing edge of the wing.  At this point the bottom decking
    ends and there is no support forward of the former on the top. 
    The only structure is the sides and the bottom joint to the sheeting
    and former.  The break was very clean on both sides and only took
    a half hour to repair, but when I did repair it I reinforced the
    area by epoxying some tri stock on both sides and the bottom, joined
    to the former behind the wing.  BTW the plane flew on monday (takeoff
    and landing performed by my instructor Bill Lewis).  
      I had the same complaints about the stampings and the instructions.
     Was a very easy plane to build other than the extra work to clean
    up the stamped parts.
    
    				-Charlie
    
164.8It actually flies!ANKER::ANKERAnker Berg-SonneMon Jun 01 1987 16:1057
        Re:< Note 164.4 by AKOV01::CAVANAGH "Well, I'm up here, how do I get down?" >

>	>There was also an ad from a company with
>        >the 4-20 biplane, which I ordered.  When the kit arrived it was a
>        >4-40 bipe, so you may be right.
>        
>
>   You are right!  In RCM, there is an ad for Sheldon's Hobby Shop.  They 
>list an "ACE 4-20 4/cycle Sport Biplane".  I think this must have been a
>misprint.
        
                They are still running the same ad in the July issue!
        
                A couple more notes  on  bulding.   The struts have to be
        soldered and I was a  bit  worried  about how easy/difficult that
        would be.  It turned out to be easy with a 40W iron and the wings
        came out straight and true.  While soldering I kept measuring the
        distance between the lower and upper wing tips  both in front and
        in back, just to be sure.
        
                This last weekend  I  took  the  plane  out for the first
        time.  The previous afternoon I had spent running the O.S.  FS 40
        Surpass  in.  It's funny with mixture and needs to  be  run  very
        rich  in  order  to prevent detonations, which are so severe that
        they yank the propnut loose. Anybody experienced these?
        
                So  I  take it out to the field, a little worried because
        all  I have ever flown is a high wing trainer, and I'm not  going
        to let someone else test it for flyworthiness.
        
                First problem is that  the  ground  range  of  the  Tower
        Hobbies mini flight pack receiver  is  about  10  feet  with  the
        antenna  down!    This compares with  75  feet  for  the  regular
        receiver.  We check the range with  the  antenna up and the plane
        lifted into the air.  Maybe 300 feet!    I decide to to risk $500
        worth of plane on a piece of junk like  this,  so  on  the spot I
        cannibalize my Great Planes Trainer 40 radio and battery, and now
        I'm O.K.
        
                Off  to the runway (this is a breezy day).  Whats's  this
        noise  (bum,  bum, bum), oh just the old pump pushing adrenaline.
        Put it down on the runway, full throttle and it really takes off,
        an I'm still  in  control!   Very, very little trimming is needed
        but the controls are  a bit sluggish because of the microservers.
        I  had been a spot  worried  about  the  travel  of  the  control
        surfaces, but they were close to  the  recommendations.   Finally
        the engine dies (still not fully run  in and adjusted) and I come
        in for the best and cleanest dead stick landing I have ever made!
        
                Since  then  I  have started practicing rolls, Immelmans,
        upside down flight, simply had a ball.
        
                I love this plane!
        
        Anker
        
        Morale: Don't buy the Tower Hobbies mini flight pack!
164.9flight packs --- airborne radio subsystemsCRVAX1::KAPLOWThere is no &#039;N&#039; in TURNKEYMon Jun 01 1987 19:224
        I have a friend who uses the tower mini packs with no range
        problems. There may be something wrong with the one you got. Give
        them a chance to swap it before writing it off. What have you got
        to lose by trying? 
164.10Silicon Valley hobby shopsCLOSUS::TAVARESJohn--Stay low, keep movingTue Jun 02 1987 11:2016
Anker, my Tower Hobbies mini flight pack range checks normally;
that is, I can back off 50 or so feet (never tried it farther),
point the collapsed antenna at at the plane, and get full
control.  Sounds like you got a "Friday" radio (made on Friday
when the worker was thinking on the weekend!).

On Sheldon's; I used to buy there when I lived in Silicon Valley.
It's a nice little shop, with some of the best prices in the
country, but I can't believe they're under Tower or Mutchler's on
anything. Like I said, their prices are good....

The new outfit, PEC Hobbies, in Mountain View, was under their
prices on many things.

By the way, I notice Ray's Hobbies, in Texas, offers some nice
deals, and their shipping and handling charges are less than Tower.
164.11ThanxANKER::ANKERAnker Berg-SonneTue Jun 02 1987 11:3121
        Re: .9 & .10
        
                Thanks for  the  info on the receiver.  under 10 feet was
        way too short.   I called Tower and got them to agree to take the
        receiver back, but because  I  can fit the full size reciever and
        battery into the plane I asked them to substitute those instead.
        
                A thought on hunting for  the right prices.  I personally
        lean towards using the local stores  to  build  a relationship in
        spite of the small price penalty.  I do most of my purchases from
        Bob  Fisher and have found that he gets friendlier and friendlier
        the more I buy.  In the end I believe the advice  and  service he
        can give is well worth the extra money.
        
                A  piece of information that Also would like to share  is
        that  Bob  Fisher  has  an  arrangment with an old guy who builds
        models  for    $70.     This  includes  engine  and  control  rod
        installation plus a  superb covering job.  For beginners or those
        who simply can't find the time, this is a steal.
        
        Anker
164.21first flight on a 4-40WMOIS::DA_WEIERTue Jan 16 1990 18:3357
    
                           First Ace 4-40 flight
    
      While shoveling the last bit of snow off the driveway from yesterdays
    dusting, it slowly dawned on me that possibly, just possibly this might
    be a nice flying day.
      I work second shift, so I loaded up my recently completed 4 - 40,
    all excited about my possible first glo powered flight. I headed out to
    the Garder field with a quick stop at Tom's hobby on the way down (good
    thing, because it turns out I needed the extra glo plug and the props
    I purchased.
      I got to the field, and after awhile I got the FS-40 to idle
    decently when the glo driver was removed. During the process, I
    switched the glo plug, and made some mixture adjustments. It finally
    ran well, but had a rough idle. Oh well, I decided to go for it, and
    carried the plane out to the runway for its maiden trim flight.
    (The radio chack had previously been completed at home)
      
      WOW!!! I couldn't believe the ailerons could be that much out of
    trim! The plane started veering left on takeoff. I thought it just
    needed right rudder application, but it turned out the ailerons were
    so far out, that I needed full right trim to get any chance at straight
    and level. After it (and I) settled down, I decided to fly for awhile
    and get the feel before landing. After awhile I got a little more
    confident and tried a loop and a roll. at the end of the roll, I
    throttled back, and voila!, deadstick landing! At this point, I
    am thanking the lord for all my deadstick experience flying electrics!
    The landing was a little short, but turned out fine.
      After stopping from shaking, I made the trim adjustments to the
    Ailerons and the throttle and tried again. Thid time the plane took
    off like it was on rails: Slight up elevator, full throttle, very
    litte rudder needed, and a nice smooth take-off resulted.
      As I got the feel of the bird, I started doing some low/slow passes
    over the runway to practice landing approaches. It was really neat
    to see the 4 - stroker just pulling the plane slowly down the
    runway.
      As for the rest of the flights; I got to slow and low on the third
    flight, stalled, bounced and landed. The bounce was so severe that the
    prop was broken, and the wheels came right trough the monocote on the
    wings.
      
      Summary: Glo planes are messier than electrics.
        
               It took awhile to get used to the longer flight times.
    
                  The 4-40 is a nice flying plane, with no bad habits that
               I can see. And it is really built tough, and can standup
               to a good a mount of abuse.
                  The plane is designed to fly the wing, and therefore is
               fairly low powered, but graceful in flight. I think a 48
               Surpass, or an Enya 53 would be a nice improvement (No Eric,
               not a YS-120!) In general, I am pleased with this as my
               first glo plane, and would recommend it to others.
    
               BTW, I this counts for my January flight,
    
                                                   Dan
164.16A new plane..AKOV11::CAVANAGHR/C planes..The bigger the better!Thu Jan 18 1990 13:5818
   Well this seems to be the closest topic for this one sooooo...


  After losing my Goldberg Cub I need to build another plane.  Right now
I am thinking of the ACE 4-60 with my ASP .61 in it.  I know the 4-60
refers to a .60/4-stroke, but I don't have one and can't afford one so
the ASP will have to do.

  I know a number of people who have built, or are building the bipe
versions of the 4-XX, but no one that has experience with the mono.
So, is there anyone with comments on the 4-60?  And yes, I have read the
preceding notes in this topic.

  Any input is welcome!


		Jim
164.17HEFTY::TENEROWICZTThu Jan 18 1990 14:178
    Jim, A fellow pilot in my area had one with an OS longstroke in
    it. Flew well on half throttle. BUT. When you cover the wing do
    so with a plastic film that resists stretching under loads. He had
    used a woven material and it would flex under load. At full throttle
    the plane was interesting to fly. It actually lost aileron athority.
    
    
    Tom
164.184-40 experience.WMOIS::DA_WEIERThu Jan 18 1990 18:1065
    
      Jim,\
    
       I just completed an ace 4-40 monoplane. Essentially the same
    aircraft downscaled to a .40 size. I only have a couple of flights on
    it, but I can share some info with you.
    
       The series are designed around 4-strokes for the reason that they
    have a barn door sized semi symetrical wing, and therefore a fairly
    low wing loading. The planes are designed to take advantage of the
    4-strokes torque vs the 2-strokes rpm. An analogy would be using
    a geared electric motor vs a direct drive on a glider. In the
    instructions, they say a 2-stroke can be substituted, but a lot of
    the grace is lost. I woud imagine that they would recommend a .40
    2-stroke for the ACE 4-60, but I am sure you can get the .60 to work.
    
       About the plane:
       
         Very rugged fuselage made almost entirely of plywood. The wing
    also seems very rugged (I covered mine in Monocote). Aluminim gear is
    provided, and bolted to the bottom of the fuse (also a rugged
    arrangement). The plane overall is made to stand up to a fair amount of
    abuse (I know, I have already given it some during my first flights.
    
         One problem (Opportunity) is the relitively small area they
    provide under a hatch for the fuel tank. I could only fit a 4 0z
    in my plane. This may or may not be a problem with the 4-60, but
    something to consider, especially with the higher fuel consumption of
    the 2-strokes.
    
         I also made a different windshield for mine, as I didn't care for
    the one provided (personal preference).
    
         I took their advice and reinforced the with a 2" strip of glass
    down the center before applying the 8' wide cloth over it that they
    provide. In retrospect, I would trash the cloth in the kit, and use
    something like KB lite for the 8" wide section.
    
    
       About flying:
    
         With the FS-40 (Not a Surpass) in the plane it provides adaquate
     performance, with an average takeoff distance. I think a 48 surpass
     would make it a much more exciting airplane to fly, so the .60
    2-stroke should offer great performance.
         After getting it trimmed, the plane does not exibit any bad habits
    that I can see so far. The take off is very easy, and as the
    manufacturer claims, it almost takes-off by itself. It has a fairly
    wide stance on the main gear, so its very stable. Thedownside is that
    the gear does not offer very much ground clearence for the prop. The
    gear can be bent to trade wide stance for ground clearance, but so far,
    I am accepting the broken props in favor of the wide gear.
         I still have my CG at the forward limit, and it is fairly docile
    as advertized. Moving it back 1/2 " will make it a much better
    aerobatic performer when I am ready. Landing is straight forward.
    
      Summary: I would think the 4-60 would be very similar, and I would
               expect it to build and act very similar. If you are serious,
               about it, go ahead, although I don't know how the 2-stroke
               will change itsd personality.
     
      I will be bringing mine to the next DECrcm meeting, so you can see it
      there if you want. 
    
                                                  Dan W.
164.19see 412.3ABACUS::RYDERperpetually the bewildered beginnerThu Jan 18 1990 20:571
    See also 412.3 and 886.1
164.20The 4-60 is still my 1st choiceAKOV11::CAVANAGHR/C planes..The bigger the better!Fri Jan 19 1990 09:1823
  Tom,

  Thanks for the input about covering the wing.  If I do go with the 4-60
I will make sure I have good materials inside and on the wing.


  Dan,

  Great info.!  I am looking at the 4-60 as a step up from my Kadet
Sr. without getting in over my head.  The Kadet does not have ailerons
and flies REAL slow (ask Dan Snow about my 15 min. snap rolls 8^).
The 4-60 should be a faster plane (but certainly not a rocket), and the
addition of ailerons should make it a relatively comfortable transition.

  I am still looking at some other planes that have been suggested off-line,
but I am leaning heavily towards the 4-60.


	Thanks again,
			Jim