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e-Ark X-400 - MX400 > price increases
 
 
RV-4Mike
Senior Heliman
Location: San Diego, Ca.

Wanted to hold off before buying one of these until there was some feedback from you guys who have already bought, built and flown. Finally decided to get off the fence and order one and it looks like the price jumped about $20 since last week on the websites I checked today. Why the continuous price increases?

X400 is priced high enough now that I'm thinking I might spend a little more to get a Trex 450XL instead. Or a Trex 450X V1 with DIY eccpm (I assume the price on the 450X will come down with the XL arriving).
06-02-2005 Over year old.
 
 
dtm360
Senior Heliman
Location: HKG

I have X400 and TRex 450v2....to be honest I would recommend the TRex XL to anyone buying a new heli today. Why?

All the problems of the 450v2 are cured in the XL, pretty much all the problems of the 450v2 are copied over in the X400 (except a few)....and the X400 has a few of it's own problems! Need I say more!
06-02-2005 Over year old.
 
 
KevinBourland
Senior Heliman
Location: Springfield, Illinois

Ditto...........
06-02-2005 Over year old.
HOMEPAGE  
 
 
RV-4Mike
Senior Heliman
Location: San Diego, Ca.

That's surprising. The impression I had from reading here and on X400tuning was that out of the box the X400 was actually quite an improvement over the V2. Of course I've never seen an X400 or the XL in the flesh. My impression was that the real issue with the X400 was quality control on some parts (main gears in particular) and what I see on the Trex forum is they also have some quality issues. So can you tell me what problems in your opinion does the X400 have that the XL fixes? And which XL, the one that's currently for sale or the eccpm one that isnt here yet?

One of the things I like about the X400 is the metal frames. Was thinking of getting the Ark eccpm upgrade along with the heli as well.

I did find an on line source that has the X400 at last week's price. Should be able to get the X400 with eccpm for about the cost of the XL or maybe a little more.
06-02-2005 Over year old.
 
 
ATHAM
Veteran
Location: santa clara

i almost done with building x-400 ccpm.
i like x-400 better than trex because of the main frame system also the stock head has less slope than trex

the other thing is the weight issue.

about the quality issue:
i think you got what you paid for
i have 3dnt made in germany which is very expensive heli but the quality of the parts very2 high (no upgrade need) . The other hand i have raptor 50v2 which is cheap compare to 3dnt. and i cant expect raptor to have better quality than my 3dnt

like you compare honda and benz?

but trex and x-400 like you compare hyundai and kia

thanks

R90 SE YS91
trex600n YS50
trex450 v2 medusa
trex600 xl
06-02-2005 Over year old.
 
 
dtm360
Senior Heliman
Location: HKG

Washout and mixer arms are both bushing + bearing. X400 has slightly better bushing but still same design very similar slop. XL uses double bearings.

Flybar seesaw is plastic rotating on plastic. XL has bearings to hold flybar and bushing for pivot.

Tail slider are both single point pivots. 450v2 uses pin and X400 uses a plastic ball. Still basically same sloppy desi. XL uses 2 point contacts to reduce the slider slop.

Metal frame on X400 is nice when built but requires you to have 3 hands to build and dismantle, most of the bolts uses nuts to hold everything together. One hand to hold frame, one hand to hold scewdriver, left feet to hold nut, teeth to grasp onto bottle of threadlock!

Z bend wires for pushrods. XL comes with the snap on ball links.

The list goes on.......
06-02-2005 Over year old.
 
 
RV-4Mike
Senior Heliman
Location: San Diego, Ca.

dtm360,

Thanks for the feedback. So let me ask you this - if you were buying an XL which one? The one with mech mixing or wait for the eccpm? I'd prefer eccpm but would rather have the servos directly drive the swash rather than driving through bell cranks. Maybe buy the current mech mix and then a DIY eccpm conversion?
06-02-2005 Over year old.
 
 
dtm360
Senior Heliman
Location: HKG

I would probably wait for the eccpm kit. Having the servos not directly drive the swash does have it's advantages. I have converted to direct drive on my v2 and everytime I have a mishap with the heli I can guarantee that at least one servo has destroyed its gears, usually 2 servos!
06-03-2005 Over year old.
 
 
ozace
Key Veteran
Location: melbourne, australia

since the price increases i would not get another x-400. The t-rexs now are very good compared to how they were. The X-400 is like to old trex, a bit hit and miss. With the price rises it only makes the trex look like even better value. The xl is a fine heli if you can wait get the ccpm version but if you need it now get the one available. The new xl parts are great and the ali stuff so far is nice.

we can never have too many, can we ?
06-03-2005 Over year old.
 
 
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e-Ark X-400 - MX400 > price increases
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