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Hi-Performance and Sailplanes RC hotliners, electric pylon racers, F5B, F5D, sailplanes and gliders

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Old 08-10-2007, 04:01 AM   #1
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Default SAL's, DLG's, Micro Gliders

On an earlier thread I discussed Discus Launch Gliders On A Budget?
http://www.wattflyer.com/forums/show...t=13314&page=2
Which was mainly concerned with the F.A.I F3-K upper size limit of 1-1/2 meter wingspan. Several members posted asking about the smaller gliders, sometimes called "SAL" (side-arm launch) or "Mosquito" (1 meter max span) gliders.
Well, I found a few ARFs and one RTF, Here's the four I found so far, starting with the smallest;
MiSAL-2 DLG from Edge RC http://www.edgerc.com/MiSAL%20DLG.htm
Wingspan 32"
Length 28-1/4"
Wing Area 144 Sq In
Weight 3.25 Oz
Airfoil AG-13
Wing Loading 3.25 Oz/Sq Ft
Channels 2-R/E
This is a composite, ready-to-fly model. Price $ 269.95

Alula from Dream-Flight http://www.dream-flight.com/alula.html
This is a swept-forward flying wing design. Made from EPP foam, carbon-fiber spars, balsa elevons and depron fins with carbon stiffeners.
Wingspan 34"
Wing Area 234 Sq In
Weight Range 4.2-4.6 Oz
Channels-2 with elevon mixing
Price $ 50.00

Red Herring from Liftworx http://www.liftworx.com/pages/redherring.html
Another flying wing, available in either EPS foam or EPP foam.
Wingspan 34"
Wing Area 290 Sq In
Weight 4.0-5.5 Oz (EPS) 5-7.5 Oz (EPP)
Wing Loading 2.0-2.5 Oz/Sq Ft
Airfoil RH-1
Channels- 2 with elevon mixing
Price $ 59.00 EPS, $ 69.00 EPP

Bobolink from Art Hobby http://www.arthobby.com/index.html
Conventional-design DLG with foam, sheeted wings, F/G boom.
Wingspan 39.4" (1 meter)
Length 31.5"
Wing Area 219 Sq In
Weight 4.8 Oz
Airfoil HN 1033 Modified
Price $ 96.00

I'm sure there's more "micro" gliders, let us know if you've tried' em!
Ron
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Old 08-10-2007, 02:47 PM   #2
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Hi Ron!,

I'm diggin' that Alula! That looks like great fun! Looks like it would be fun for some light slope soaring. Thanks for finding these!

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Old 08-10-2007, 03:05 PM   #3
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Default Aloha from Alula!

Hi Franny, Long time no yak!
The Alula caught my eye also. I've read some comments on the "Budget" thread that say it flys pretty well, might have to try one.
See you soon, got a model magazine for you!
Ron
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Old 08-10-2007, 03:21 PM   #4
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The Swyft from Liftworks is a better DLG than the Red Herring IMO. The Herring is a good Slope flier though.

I have to say the Alula is a great little plane although it is a little fragile. I enjoy mine on the slope when the winds die down and nothing else will fly.
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Old 08-30-2007, 05:22 PM   #5
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A buddy of mine and I have been looking at the alula for a while. We dont have any true slopes here in Seattle and think it would be good seeing as we get a nice offshore breeze quite often.

The bobo also looks real slick. I might look into gettin that as I am in the market to start flying a DLG.

Alia Iacta Est...
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Old 09-03-2007, 09:46 AM   #6
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Default Another "SAL" Kit

Enduro Composite Models have a small (40" wingspan) glider kit called the Apogee Sport. http://www.flyecm.com/inventory/Apogee_Sport.asp
This is a discus-launch glider kit, not ARF. All laser-cut balsa, uni-carbon reinforcment, AVIA tapered, wrapped carbon boom, teflon tubing, stainless steel control rods, all carbon launching blade, full size plans and construction booklet with color photos. The model is based on Dr. Mark Drela's Apogee DLG design.
Specs;
Wingspan- 40"
Wing Area- 198.4 Square Inches
Weight- 4.0 Ounces
Wing Loading- 2.9 Ounces/Square Foot
Airfoil- AG03-AG11 (the construction download lists the wing sections as AG13-AG14)
Price- $95.00
There is a long development and test thread on RCG, here;
http://www.rcgroups.com/forums/showthread.php?t=595551
ECM also offer an all-composite, fully camber-changing wing, ARF competition version, the Apogee Elite. Price $310.00
http://www.flyecm.com/inventory/Apogee_Elite.asp
More small gliders!
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Old 09-24-2007, 01:00 PM   #7
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Default Another SAL, DLG Links

Here's a SAL that was mentioned in the "Budget DLG" thread, from North East Extreme R/C; http://stocker.rchomepage.com/
This is the "Boomer", an EPS foam SAL/DLG. Kit contains foam wing cores, balsa elevons, balsa grip pads, hardwood control horns, carbon tail boom, carbon + balsa tail, wire, carbon control rods, 1 roll 1.6mil tape, spray adhesive. Specs;
Wingspan; 33.6"
Airfoil; NEX07
Wing Area; 317.25 Square Inches
Weight; 6.5 Ounces
Wing Loading; 2.941 Ounces Per Square Foot
Price; $60.00 + $6.00 S+H in the US
And a great DLG site in the Czech Republic, dozens of links for F3K, DLG, SAL's, Micro gliders, build threads, photos;
http://www.tmrmodel.cz/links_dlg.htm
Have Fun!
Ron
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Old 09-24-2007, 03:07 PM   #8
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I think the Boomer is now being offer through the Mountain Models/Lazer Arts website now. http://www.mountainmodels.com/produc...5b8f92b9b1d298
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Old 09-30-2007, 04:21 AM   #9
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Yes, mountain models bought the production rights to the Boomer. I have one of their first shipped kits.

Fun plane, but I have never gotten it into a thermal.

I have a MM Quick Flick II on the buid table now.

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Old 11-13-2011, 04:11 AM   #10
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This micro DLG is based on the Quark by Adam Woodworth, i have simply modified it a bit so thank him for the concept. $37 Kits available at http://www.SkyHighHobby.com


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Old 11-13-2011, 04:35 AM   #11
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Interesting DLG. I would guess it would have to be dead calm to fly that.

The site suggests the Spektrum AR6244 for this plane but Horizon does not list this receiver. Is there a more current suggestion? The post above says AR6400. Is that what should be used?

I am a little unsure.

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Old 11-13-2011, 04:46 AM   #12
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o that was a typo on the site, its actually the AR6400 the brick yes, thank you for correcting that, its best to fly this at dead air on a hot day, it glides forever. in the video it was a cold day so airtime was low. this little guy actually can be flown in 5mph winds, anymore and yes it will get blown away

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Old 11-13-2011, 10:33 AM   #13
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Vladimars Model's 'Elf' is IMHO one of the best micro DLG's. At 1M span and just over 3oz (95g) in weight it makes all the rest, even those costing much more, look a little 'porky'. This is a micro DLG with 'real' DLG performance.

Some good videos on Hyperflight's web site for the Elf: http://www.hyperflight.co.uk/product...e=elf-mini-dlg
Manufacturer's site: http://www.f3j.in.ua/index.php?id=190
US distributor: http://www.kennedycomposites.com/elf.htm
My own video:

The Elf is an amazing model and great value, but many would argue not exactly 'budget priced'. If you want good performance for minimum cost then the MiMi is worth a look, plan is free and available in both built up wing and solid balsa: http://www.rcgroups.com/forums/showthread.php?t=840763

if you aren't keen on scratch building then the Topsky Mini or 'Super Mini' might be what you are looking for: http://www.topsoaring.com/index_page0003.htm
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Old 11-13-2011, 10:43 AM   #14
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hey JetPlaneFlyer, not to many people in this bull***t economy can afford food yet alone DLG gliders well over $200 not to mention the ELF which is no longer available.... Micro means MICRO, well under 21" of wing span, i dont think you can find anywhere online or your local hobby shop that sells a "micro" DLG glider for under $40
sure i myself would love to own an ELF or a Binary V2, but who wants a week of build time with Kevlar and epoxy?

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Old 11-13-2011, 11:11 AM   #15
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Picking each of your points:

I appreciate some are on a tight budget which is why i put a link to a *FREE* DLG plan. If you have a $40 budget and want a mini DLG with genuine full size DLG performance and dont mind a bit of balsa bashing, then the MiMi is the way to go. Having said that the economy may be in the toilet but there are still those who can easily afford $200 so let's not make ridiculous generalisations that everyone in the world is starving!

Not sure how you came to the conclusion that the Elf was not available It's still in production and is in stock and available from both of the stockists I linked to.

We all have our own ideas what 'micro' means. The official Mini/Mosquito DLG class allows gliders of 1m span (the Elf was built for this class). The opening post of this thread actually says gliders of 1m span......I assume you just made up your 21" definition?

As for the "week of build time with kevlar and epoxy". The Elf comes fully complete except for RC installation. You don't need to do anything with kevlar or epoxy and assembly takes only a couple of hours. The Topsky models on the other hand do need quite a bit of work to finish.

Taking nothing away from your little Micro-D glider, it looks like a lot of fun. One hopefully constructive comment; In the video I think I could see a lot of wing bending on launch. You would stop all of that if you put carbon on both the top and bottom of the wing rather than what looks currently like the top surface only. This does not necassarily mean more weight because half the width of carbon placed top and bottom would be orders of magnitude stronger than a single wide carbon strip placed top only.

Steve
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Old 11-13-2011, 03:55 PM   #16
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Originally Posted by littlephoenix View Post
This micro DLG is based on the Quark by Adam Woodworth, i have simply modified it a bit so thank him for the concept. $37 Kits available at http://www.SkyHighHobby.com
Is this plane really under 1 ounce, all up weight?

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Old 11-13-2011, 05:53 PM   #17
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Sounds about right to me. I've got a 17" span freeflight glider here, if I weight it together with an AR6400 and a 110mAh battery it's 15g total. So a 21" glider under one oz should be quite achievable.

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Old 11-13-2011, 08:26 PM   #18
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Yes, its around .8oz, i use hot glue in some parts e.g elevator to the boom and rudder to the boom, if you use thick CA, you can achieve sub .7oz, on a calm hot summer day, i was able to catch thermals, she flew for 5 minutes before i had to bring her down any other DLG this size specially those made out of balsa will not achieve thermal lift

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Old 11-19-2011, 02:54 AM   #19
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Build a Bug- cheap, easy and it has a world-wide following. I love mine.

Join the Yahoo group "BugHLG" and pick up the plan there for free. Check out the "Bringing Back the Bug" thread at RCGroups.

The picture I'm attaching is a Bug with the SAL wing. I've since built a Bug with an extended wing and DLG peg. It's probably my favorite plane. It's balsa, but it thermals

Rick


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Old 02-09-2012, 03:49 AM   #20
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the bugHLG seems cool but way to heavy for its size, building it would take a great deal of time as well,,,never the less a pretty cute looking HLG

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Old 02-09-2012, 11:06 AM   #21
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Originally Posted by littlephoenix View Post
the bugHLG seems cool but way to heavy for its size, building it would take a great deal of time as well,,,never the less a pretty cute looking HLG
Actually, the Bug can come in at about 3.0 oz AUW if built per Carl's instructions.

And it's not that hard to build. Granted it's a scratch build, but it's easy.

The Bug is one of my favorite planes, and it always goes to the field with me.

Rick
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Old 10-23-2012, 10:22 AM   #22
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another video of the Micro-D dlg
enjoy

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