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Post by callun on Jul 30, 2007 15:21:52 GMT 10
Hey Glen, So after my taste of DSing the other day, I'm looking for a good DS rig, and I came across the jart website and the look of it captivated me - they look like they're doing warp even when they're buried wings-deep, nose first in the soft ground. I've asked Reed for the plans, and am waiting to hear from him, but in your opinion Glen, do you think the Jart is a reasonable DS craft? |
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Post by sean on Jul 30, 2007 18:46:56 GMT 10
Hey Callun, The Jart's do look awesome but they're heaps of work to build! Check out some of the build threads.. months of very tricky building required  . DS=destruction, so if you spent the necessary time building one of those babies I reckon it'd be too terrifying to risk all that work DSing it! There is an EPP kit for sale though, but a lumpy EPP Jart would't look nearly as good IMO. For learning I don't think you could go past a well setup plank like the M60/Drongo/Reaper etc. |
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zipper
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Post by zipper on Jul 30, 2007 18:55:58 GMT 10
Like Sean said, There is A LOT of work involved in building a Jart (about 200 hours) and I dont think they are suited to DS'ing, all the wrong shape, thats not to say that they want DS. They like good lift and are more suited to aerobatic. The EPP Jarts are slow and the wings are made from black EPP which is total crap.
Glenn
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Post by sean on Jul 30, 2007 19:12:52 GMT 10
Sounds like production of the EPP Jarts will stop this year (checkout the blog page of Jartworld). There's also this mysterious comment on that page:
"This change is the beginning of some cool things cooking in JARTWORLD, but there won't be any more big announcements until the end of the year."
After just getting the Jart shape patented (see blog page again), I wonder if an official kit is in the works?
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Post by callun on Jul 30, 2007 19:24:04 GMT 10
Hmm... I still want one  and I've got plenty of time. Seriously - 200 hours?? Why? What's so hard about em? I was thinking, foam sandwiched between FG/carbon. I can't see what's so difficult looking about em, so please fill me in. |
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Post by jase on Jul 30, 2007 20:28:23 GMT 10
i'm game if you are.. i know i'm a novice to flying, but i can build stuff and i love a challenge. let the jart buld-off being.
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Post by callun on Jul 30, 2007 20:29:10 GMT 10
Taking a different tack, what would need to be done to a Jart to make it more suitable for DSing?
Or any rig for that matter?
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Post by ding on Jul 30, 2007 20:31:57 GMT 10
Remind me to take my helmet and body armour the day these darts hit the DS slope. |
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Post by callun on Jul 30, 2007 20:47:17 GMT 10
Don't forget your helmet and body armour Steve... Too early?  |
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Post by jase on Jul 30, 2007 21:08:02 GMT 10
has anyone got a copy of the plans. i've sent Reed a PM on rcgroups so i'll prob have a copy tomorrow. i'll print them out at work on the lazer printer
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Post by sean on Jul 30, 2007 22:32:10 GMT 10
While I haven't built a Jart, I have built things with fibreglass. It doesn't sound hard, but using the lost foam technique is very tricky to do. The main thing though is time and patience, sanding, filling, sanding, filling, on and on, because the glass never sits properly over your mould, and it's really tough to get a perfectly shaped foam plug etc. You also need to spend a lot of time learning techniques and what materials should be used etc. This means lots of stuff-ups during the learning process, meaning lots of wasted time/money. If you have the time though it would be a very rewarding thing to do, just don't expect it to be quick or easy!
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zipper
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Post by zipper on Jul 31, 2007 12:41:07 GMT 10
Taking a different tack, what would need to be done to a Jart to make it more suitable for DSing? Or any rig for that matter? You would be better off asking that in the DS forum on RCGroups. Sean is right again, sanding and filling becomes your life. When you start you will live, breath and dream Jart, it will take over your life but the final product is worth it and you can say that I built it from a hunk of foam. Let us know when you start and we can help you through the proses. Glenn |
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Post by jase on Jul 31, 2007 16:44:57 GMT 10
is there any local suppliers in bris that sells EPP sheets?
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Post by thevon on Jul 31, 2007 18:05:09 GMT 10
Callun I think that with DS, unless you're a master, there's far too much crashin' going on to do it with anything moulded, hollow, etc. There's no point flying a good performer but having to go home early because one crash wrecks it. I reckon stick to durable all-EPP designs for a while. Something like the Reaper is ideal - all EPP inc fuse - Ezza's is really beaten up now and many repairs but it soars efficiently with the best, and really DS's well. Very fast and responsive.
I like the Drongo a lot but I'm a bit scared of it - mainly because I'm not really a good enough flyer for it. But it is extremely balance/ pitch sensitive, and it does tend to lose elevator response at the bottom turn. So I wonder how something like the Lumberjack would go? Have a look, made by Canuck in Canada. Same idea as the Bluto but with some sweep on the wings, still gonna be a very fast thing, without a nose which helps enormously with durability. The sweep is going to make it more stable and less pitch sensitive. Jeff from Burpengary is building one and I had a look at the kit - looks like really good stuff, very high density EPP too.
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Post by jase on Aug 1, 2007 11:14:26 GMT 10
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. DS=destruction, so if you spent the necessary time building one of those babies I reckon it'd be too terrifying to risk all that work DSing it! There is an EPP kit for sale though, but a lumpy EPP Jart would't look nearly as good IMO. For learning I don't think you could go past a well setup plank like the M60/Drongo/Reaper etc.
and I've got plenty of time.
