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Helicopter
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Other › Weight of aluminum upgrades
11-29-2005 07:21 PM  12 years agoPost 1
ob1

rrApprentice

Chattanooga, TN - USA

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Just curious....
I have the T-Rex 450 XL HDE V3 w/3200 kv Align motor and Align 35A ESC, 3xHS55 and 1xHS50, plus E-Series CF mains, and love it. I would like to add the aluminum upgrades for strength, durability, and yes also for the "bling" factor. I am planning to do all "blue" aluminum Align upgrades (head, grips, washout, flybar, swash, boom servo mounts, and tail.
I am wondering if the aluminum replacements are heavier, lighter, or the same weight as the stock black plastic parts. Is there a significant difference or not much at all ? I don't have a scale that is capable of measuring small differences in individual parts or the difference in total weight of heli before and after upgrades. Any help is appreciated.
Thanks...
ob1

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11-29-2005 10:23 PM  12 years agoPost 2
tiny-flyer

rrApprentice

Houston, Texas USA

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The metal parts are lighter and on my heli it makes it fly better. Some people say they are lighter but they do not make the heli fly any better.

" your never to low until you hit the ground ''

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11-30-2005 12:54 AM  12 years agoPost 3
JiggerInc

rrApprentice

Arlington, VA

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I've made a lot of changes to my heli from its v2 stock, and it just keeps getting heavier. I only have a 1g resolution scale, but its been enough to notice the weight jump when I added the all aluminum head (~30g if I remember correctly), and it dropped when I added the aluminum (non-Align) skids, but went up again when I added the aluminum tail enclosure...

Have you actually weighed the parts to come up with the conclusion that the aluminum parts are lighter? The aluminum parts are definitely more durable (though I've been mangling landing skids lately)... but I'm not skilled enough to notice any increase in precision (still working on FF/fig8/collective management) over XL parts properly adjusted. Since I tend to make several changes at a time, I can't comment on each individual part, but my blinged up TRex is definitely heavier than it started out.

The slight increase from the aluminum bits has now been drowned out by the 335 blades (vs 315), bigger 4S battery (2000 vs 1390), the Jazz (vs CC35) and the HS-56 on the tail (vs HS-50). It's now a big fat 747g. Fortunately the Neu 9Y still flicks around in the air much faster than I can control it.. so I'm still a happy pilot.


-Greg
http://rcheliwiki.com

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11-30-2005 05:38 PM  12 years agoPost 4
keyz

rrVeteran

, UK

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it doesnt realy matter !!!!
if the weight of the lill heli is high but still moving fast enough for your skills the only thing that would be suffering is flight time
only when the heli reaction time seems slow to you is the time to start thinking about weight savings
...............thats how i see it anyway , its worked for me ...........

If you need to get high , go and fly !

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11-30-2005 07:57 PM  12 years agoPost 5
WRXRonald

rrKey Veteran

Auburn, OH

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na...

trust me i've weighed most of them and the difference in weights is negligible.

for instance... the ccpm cnc swash, vs the stock plastic one... was heavier, but no more than something like 2 grams. i don't remember the exact differences....

but i KNOW i put them on the precision scale to make the same determination myself. i was worried all this metal was weighing the bird down.

but its just not..... swap out all plastic bits for all cnc bits (head and tail) and you realy aren't going to realize much more than 5 gram increase, IF THAT.

5grams just not enough to make a large difference in heli performance.

when it comes to dropping weight, i really won't spend big $ or big time unless i can drop 15+ grams on some type of mod or component replacement. (unless its simple like saving 10grams by removing my futaba Rx case)........

Good Day: crashed thx to dumb thumbs. Bad Day: crashed mechanical malfunction. Every Day: CRASH :)

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11-30-2005 09:21 PM  12 years agoPost 6
jiri

rrApprentice

Aalborg, Denmark

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Actually, I was checking the weight of Duzi tail upgrade and it is
about 2g lighter than the stock (not a big difference but the weight
only improves). As the other say, I am not sure if this is the case
in general for any alu uprades and I rather doubt it. The Duzi tail
case has a very simple (and elegant in my view) design, which
saves some weight but otherwise my experience is that with alu
upgards the weight only grows. It was more dramatic for my Hornet II,
my T-rex has tons of power so one should not worry about every gram.

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12-01-2005 12:23 AM  12 years agoPost 7
OICU812

rrMaster

Edson, Alberta, Canada

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A slightly heavier machine will fly better and be more stable in abit of wind, ,,, way I see it if you make it heavier that is just a good excuse to put in a bigger better motor!!!

...Once upon a time there were Nitros, flybars and frequency pins...

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