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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

1700.0. "Duraplane Aerobat - yes or no?" by RDGENG::BRYANT () Tue Feb 11 1997 06:22

    
    
    What is the latest opinion on the Duraplane Aerobat?
    
    I am moving from a trainer up to something I can start
    learning aerobatics on, and am attracted by the claim that these
    are somewhat more resilient to "getting it wrong" than an all
    wood design. 
    
    I can fly most of the basic aerobatic manouvers on the NHP 
    simulator, but always get real worried when I get in the air
    because if I get it wrong, there will be no more flying for some
    weeks - hence the interest in an aircraft that I can biff from time to
    time.
    
    Do they fly well, and would they it be a suitable next step.
    
    Also what size engine is needed? Can I move the FP40 off the trainer,
    or should I get an 46?
    
    Thanks
    
    Stewart
    
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1700.1VMSSG::FRIEDRICHSAsk me about Young EaglesTue Feb 11 1997 09:1415
    I would not bother with one....  
    
    They are certainly resiliant to landing and takeoff mishaps, but if 
    you drive it in at full throttle from 100', it is not going to
    survive any better than anything else.
    
    My second plane was a Midwest Stick plane.  Nice and easy to build, 
    good performer, and fun.  (BTW - These are now Great Planes "Big Stik"
    line).  I have even been considering building another one..  (before
    I knew how to instruct (and before buddy boxes) I tried to teach my
    dad how to fly and I was not high enough to recover his mistake....)
    
    Cheers,
    jeff
    
1700.2Go for the STICK APACHE::BRADOR::ZUFELTV12 @17.5K music to my earsTue Feb 11 1997 11:1710
    I second the BIG STICK/Ugly Stick type plane. My second plane was a
    Tiger stick ARF. Flew very well until I hit the hydro pole.
    
    I went ahead and built the Big Stick but the snow won so I haven't flown
    it yet. Plan to try for the winter fly in. Hoping for warm weather.
    
    From want I've seen the Duroplane flies like a brick, not really good
    for stunt patterns, plus your landings should be getting better ;')
    
    Fred                                                 
1700.3one for the under dogCBROWN::ONEILLTue Feb 11 1997 13:0213
    Well, I never thought I'd be saying anything good about dura planes
    but, I personally know a guy that learned how to fly with one and
    also has the sturdy birdi ( basically the same plane, diffent company).
    Now, givin a choice, the beginer should go the high wing, 4 channel
    trainer, but it sounds like your well past that part. I cant speak
    about the dura bat beyond saying, if thats the one you want, go for it.
    I heard alot of bad things about U.S.aircore planes too but I own one,
    and it flies great even though I power it with a 12 yr old O.S..35 (
    which is below the recomended engine size of .40-.50). I hated the kit
    but now that it's done, it's o.k. I'd be interested to hear which kit
    you go with and how you make out.
    
                                                         Jim 
1700.4Aerobat go for it !!ASDG::ELLISWed Feb 12 1997 08:1610
    
    
    I bought a Aerobat last season. The plane will take a beating
    I flew it into the ground at a pretty good clip and it got up
    and flew again. I started out with an OS FX46 good power no problem on
    take off or landing. I now fly it with a Tower 40 it's not bad
    just keep your eyes on it. It somtime hard to determine if it's
    upside down or rightside up. It responds quickly.
    
    John
1700.5Don't forget the Gremlin!WMOIS::WEIERKeep those wings spinning!Thu Feb 13 1997 08:4922
                                      
    
        First let me say I agree with the previous replies regarding the
     "Stick" series of airplanes. They are a blast and everyone should have
      one in their airplane "stable".
    
        Another coice, although harder to find a kit, is the Gremlin. It is
     a hand launched, cheap, .25 - .40 powered, easy to build (10-20 hrs)
     "flying wing" that begs you to try all kinds of new stuff ( ie; 
     aerobatics, inverted flight, very low level high speed passes, very 
     low inverted high speed passes....... well, you get the idea :). 
     It is rock stable in flight and many people have flown them 
     successfully even before they could  solo on a trainer plane. 
        To summarize, these planes are a blast to just "throw around and
     people have done many "stupid" things with them :) 
        They have a foam wing, are very resilient to crashes and are easy
     to repair. They were originally designed ( and are  still used for ) 
     RC "combat", but make a great sport plane.
        One disadvantage: No rudder, so the more sophisticated aerobatic
     manuvers suffer/or aren't possible.
       
      
1700.6One more voiceWMOIS::CALDWELL_ROThu Feb 13 1997 12:228
    I have been flying a Dura-plane 40 trainer for two years now. I have
    cartwheeled it down the runway. Blasted it into the ground hard enuph
    to require a new engine mount and bounced it off the runway more times
    than I like to admit. It has served me well. It has hundreds of flights
    on it and is actually quite acrobatic. It will never be confused with a
    pattern plane of coarse but I find I will try things with it that I
    wouldn't with my other planes. It is heavy so it makes a good plane on
    a windy day. One mans opinion.
1700.7I'll give both a tryRDGENG::BRYANTThu Feb 13 1997 18:3118
    Thanks for the replies, I am going to give the Acrobat a try. The
    kits are $60, which is about L36, and that seems quite reasonable.
    
    As for the Gremlin, I am in the closing stages of building one. I
    bought a copy of the plans from RCM, and made a set of jigs that have
    been passed arround our club. So far we have 2 flying, 3 more to be
    completed in the next two weeks, and the guy who  cuts our wings  took
    7 orders for wings at the field last Sunday.
    
    They do indeed seem to be a very stable and easy aircraft to fly, 
    and I am looking forward to getting mine in the air in a couple
    of weeks. I would be flying it this weekend, but I am working in
    the SHR until the end of next week.
    
    Thanks for your help
    
    Stewart
    
1700.8blown awayDECXPS::ONEILLFri May 23 1997 12:116
    I'd be interested in hearing how things are going. Did you finally
    purchase the dura-bat? It's been so windy here in Mass. I don't think
    anyone has had much chance to start the flying season off right. If
    it's not raining, it's sunny with a 30mph BREEZE.... give me a break.
    
                                                           Jim
1700.9Needs a bigger wingRDGENG::BRYANTFri May 30 1997 06:5626
    Yes I did get the durabat, and built it with an OS46FX. I got one
    of our club examiners to check fly it, and his view was that it was
    OK but probably too much of a handful for me. There were a couple of
    setting up problems however -
    
    1) The control throws recommended in the instructions were MUCH too
    high. I had full rates set as recommended, and low rates at 50%, both
    with 15% exponential. I think that we ended up at half this.
    
    2) I had to add rear weight to set the CoG where the instructions
    specified, but ended up moving it further forward by reducing rear
    weight.
    
    So having descided it was much too much of a handfull, a club member
    gave me a larger wing, formerly from a crashed low winger. This is a
    similar cord, but about 9" longer, and with some dihedral. I fitted
    this with a small cradle and banded it on, set the CoG, this time with
    some nose weight. We flew it last weekend with the same instructor
    check flying it first. The verdict was that it was now fine. I flew it
    for three flights, and found that it was OK. 
    
    So the bottom line is that the dura-bat as sold is a bit of a handful,
    but it appears that clipping on a larger wing produces quite a
    reasonable plane.
    
    Stewart
1700.10what ever worksDECXPS::ONEILLFri May 30 1997 12:248
    Great!
                I like your choice of engine. I recently purchaced a o.s.
    .46 fx and I couldn't be happier. You have to take the dura plane line
    for what it is. They're not floaters or trainners either, but they're
    definatly not as bad as people make them out to be. When your ready for
    the original wing, I'll bet you'll have a blast. Keep us informed.
    
                                                       Jim