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Old Jun 10, 2014, 04:45 PM
crash expert
New Zealand, Canterbury, Christchurch
Joined Apr 2014
222 Posts
Hi PJ
A way to shave a bit of weight is an open bottom fuselage. It makes battery swappng easy,

Also the weight of the tape might add up on the rear end

Otherwise she looks great

Like Mac50L said, the hair ties hold his batteries in nicely. Im pretty good at lawn darting these planes but find velcro holds the batteries in nicely too.

Congrats on a scratch build completion, what glue did you use? Did you strip the paper off the foam?
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Old Jun 12, 2014, 08:15 AM
U Bend em - we mend em
Proper Job's Avatar
Australia, NSW, Henty
Joined Jun 2011
83 Posts
Feedback

MAC50 and Felixx

Thanks for the inputs.

In my very limited newb flying experience with the Dart, once I got it flying in basically level flight (which I had to add approx 50grams of weight in the nose), I never thought it behaved as though it was heavy or sluggish (again I probably wouldn't really know, as I've only built & flown this one Dart)

Yeah, I know all about 'lawn darting' but with prop saver and the front firewall mounted L/G it reduced the broken props significantly.

Regarding paper on my Foam board - I always take it off, 'cos its nearly 2/3rds the total weight of the FB that I buy here in OZ.

Cheers
Geoff
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Old Jun 12, 2014, 09:42 AM
Registered User
New Zealand, Canterbury, Rolleston
Joined Oct 2011
1,001 Posts
Quote:
Originally Posted by Proper Job View Post
I had to add approx 50grams of weight in the nose
Make a new ply box (sides, firewall and cross piece for U/C mount) and fit that. Unfortunately I haven't one handy to give dimensions but might have something somewhere if I do a bit of website digging. Being in Vienna and my Darts in NZ is a wee bit of a problem.

We either use paperless foam or remove it because of the weight.
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Old Jun 12, 2014, 09:46 AM
just Some Useless Geek
Chicagoland
Joined Oct 2008
2,535 Posts
Geoff, yer gonna want to build another SDXS, and this time cut off about 100 grams. Try building a little smaller and with less bulletproofing. My Dart-ish creations run about 500 to 600 mm span depending on what I'm building, and they never get over 200 grams AUW at that size. No undercarriage and a profile fuselage, but they are great flyers.

Goldy always sez "light is might," and he is absolutely correct. Nearly every plan form I have built using this basic layout has performed significantly better with less weight than with more. Lighter airframe, lighter motor, lighter servos, lighter battery. Less crash damage, far better in-the-air performance. Try it out.
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Old Jun 12, 2014, 10:31 AM
Registered User
New Zealand, Canterbury, Rolleston
Joined Oct 2011
1,001 Posts
https://sites.google.com/site/kayakamf/rcplanes/dart-xs

https://sites.google.com/site/kayaka...rt-xs/diagrams

The pictures in the first URL show how I mount the U/C and the firewall. The second one is roughly the dimensions I use.
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Old Jun 13, 2014, 08:49 AM
U Bend em - we mend em
Proper Job's Avatar
Australia, NSW, Henty
Joined Jun 2011
83 Posts
U Geek

Yeah, I always start out going for light (I've read that Goldys message before) but...but.... I PROMISE I WILL TRY AGAIN

MAC

I modelled my Liteply box on yours in the first place. Even made the same mistake with the single screw HK wire L/G. But then after second flight fashioned a stronger one mounted on the front firewall of the box which worked brilliantly.

PJ
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Old Jun 13, 2014, 09:01 AM
flyin' fool
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Vancouver Island, Canada
Joined Jul 2003
7,199 Posts
Light is might, light is might, light is might...........................

Well, except when slope flying in big wind.
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Old Jun 13, 2014, 01:12 PM
For us He died, in me He lives
Jimmy JFlyer's Avatar
United States, MI, Saint Clair Shores
Joined Dec 2008
5,103 Posts
Just getting the RC bug again and might have to build one of these. Built a 17"er once (my only Dart which surprises me) and it was a 4 oz little fun ship. But I also didn't know what I was doing back then either, not that I do now mind you.

I have the usual 1500 BW 2s set up and also an 1811 10g 2000 kv 2s set up too. Might have to build a super light mini... Bet I could go less than 4 oz with 3mm foam. All profile, no box and super light gear might get the job done. maybe...

My Nutball will donate its 1500 for the standard Dart.
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Old Jun 14, 2014, 12:46 AM
flyin' fool
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Vancouver Island, Canada
Joined Jul 2003
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Hey JJ, there your are, welcome back
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Old Jun 14, 2014, 07:57 AM
For us He died, in me He lives
Jimmy JFlyer's Avatar
United States, MI, Saint Clair Shores
Joined Dec 2008
5,103 Posts
Hey man thanks! Yeah it has been a while. Life has just gotten crazy busy. Then when I lost all my stuff (long story) I got into... brace yourself... BALSA.
Free flight stick & tissue was a cheapo way to stay in the game and now I am hooked. Then Ken (dz1sfb) sends me a J-Bug kit and the "bug" bit me.
I have my 4 planes with gear still on them so I can still build. I hardly have any time to build so a plane will probably take for ever but ah well. Felt good to glue foam.

Truth be told I have always lurked the NB & Dart threads. How could I resist?
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Old Jun 16, 2014, 03:51 AM
jclassic1
New Houghton, Derbyshire, UK
Joined May 2006
1,382 Posts
Hey Jimmy boy,
great to see you on here again.I am still flying nutballs and darts as they are my most reliable everyday flyers.
I also have had a bit of a break from building/flying but it is something that you just can,t shake off.
Hope you get a chance to get out flying again.
I am always looking for something new to build but the Darts and Nutballs do everything I need so why change.

Hope you continue to post on rc groups.

All the best

John
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Old Jun 16, 2014, 05:32 AM
crash expert
New Zealand, Canterbury, Christchurch
Joined Apr 2014
222 Posts
I was thinking of shaving some fuse weight but cutting some .308" holes thru the fuse with a heated .308 rifle cartridge (fired). This will give me uniform shaped and sized holes.
Will this sacrifice much strength?
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Old Jun 16, 2014, 07:19 AM
For us He died, in me He lives
Jimmy JFlyer's Avatar
United States, MI, Saint Clair Shores
Joined Dec 2008
5,103 Posts
Hey John! Good to be posting on the same threads as you again! We always seemed to bump into each other eh?

Blessings to you my friend,
Jimmy
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Old Jun 16, 2014, 09:48 PM
Rather be flying
tsudduth's Avatar
United States, TX, Midland
Joined Feb 2009
264 Posts
Quote:
Originally Posted by felixx View Post
I was thinking of shaving some fuse weight but cutting some .308" holes thru the fuse with a heated .308 rifle cartridge (fired). This will give me uniform shaped and sized holes.
Will this sacrifice much strength?
So will you be removing the radio equipment before firing on you SD?
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Old Jun 16, 2014, 10:11 PM
crash expert
New Zealand, Canterbury, Christchurch
Joined Apr 2014
222 Posts
hahaha from what I have been told my Turnigy gear is 'bulletproof'
http://www.rcgroups.com/forums/showthread.php?t=1365624
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