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Parkzone Extra 300 chat

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ParkZone Extra 300

Manufacturer: ParkZone

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No. of Reviews3
David Ashby - Moderator18/08/2010 08:41:52
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I thought I''d start a little thread about this model. 
 
It''s one I bought for myself a couple of months ago but have also reviewed it for the latest issue of the mag''. 
 
I flew it, adjusted it and it''s a fine little aerobat, fast but forgiving. The adjustment I made was to add much needed downthrust by a few degrees. This negated the model''s desire to climb quite rapidly as power is increased.  
 
Then I noticed the quite veciferous thread on RC Groups. Some are commenting on the fact that the model is unflyable owing to a wing being added upsidedown at the factory. They''ve noticed that the top surface is a little flatter than the underside when viewed from the tip. It may well be the case yet I haven''t found the model unflyable, quite the opposite in fact although my model''s wing also has this trait.
 
Some of the posts I''ve seen are quite veciferous to the point that one feels the poster is on a bit of a mission or flying skills aren''t quite where they should be but....I just wondered whether anyone on this forum has flown or seen one and has any experiences/thoughts to pass on?  
00118/08/2010 10:15:31
2212 forum posts
1 photos
David, I haven't seen one of these yet so I cannot comment on the material of the model.
I have just looked at some of the other forums and opinion about it seems to be very divided.
 
All the consumer photos that I have found show the tip of the wing and  it indeed looks flatter on the top.
Could it be that washout has been built into the wing making it appear to be inverted at the tip?
 
Does it have the same curvature at the root 
 
 
David Ashby - Moderator20/08/2010 11:31:14
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A shade flatter at the root Richard but just slightly. 
boggy29/08/2010 15:34:55
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i have one of these as do 3 others at my local club.
we all have the "strange" profile wings but non of us have found it to be a problem.it flies right and can perform every thing that we try.
yes it climbs like the proverbial bat out of hell if you give it WOT but thats easy to contol and actually helps immensely  with hand launches!  and landings need to be flown in rather than gliding in or you end up with an unexpected"balloon" just before touch down.
all in all a great little model that is easy to set up and very convenient to  fly and will give hours of fun.
 
parkzone you owe me that was a damn good advert!! 
Trex700e07/09/2010 18:30:37
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102 forum posts
18 photos
The wing is on upside down!! it is definitly flatter on the top. Parkzone say its due to the contracting paint on the top of the wing. Another idea has been that the carbon rod under the wing is too big for the slot meaning it pushes the sides apart and then the LE and TE upwards. also some people think that parkzone just got it wrong. it is definitly climbing in inverted which shows something.
 
however dont let this put anyone off buying one as mine is absolutly fantastic, it flies well and you dont really notice the wing and i spend more time inverted so im ok
Garry Pollard07/09/2010 19:52:39
1091 forum posts
David
Did a short review yesterday. if this is the model you mean
Garry
David Ashby - Moderator08/09/2010 06:25:21
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Yup saw that Garry, glad you like yours  
 
I was flying and writing about the model last month and saw some really bad things written about the model on another forum (because of the wing) and wondered if the chap was flying something else so it's good to know what others think.
 
 
Swissflyer07/10/2010 18:53:43
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162 forum posts
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I recently picked up a German RC flying magazine (FMT I think) and after some very rigorous testing the reviewer proposed to crown the Parkzone Extra 300 as model of the year.
So I guess they have good enough flying skills too
Mark
David Ashby - Moderator07/10/2010 18:56:23
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Praise indeed.
Swissflyer07/10/2010 19:21:55
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Yes it was FMT, here is the link.
The online version mentions the wing profile but you have to buy the full magazine to get the rest
Mark
TonyS07/10/2010 19:45:08
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1145 forum posts
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I got one of these a couple of weeks ago. Flyable virtually straight from the box. Great quality, and, though I'm no 3D expert I think it flies like a dream with the suggested set-up.
No complaints from me   love it. 
David Ashby - Moderator07/10/2010 20:05:41
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Thanks Mark/Tony - wish I'd been more attentive in German lessons at school.......    
Swissflyer07/10/2010 20:31:57
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Thanks David, I see you are an energetic moderator and one good language is perfect for that. Thanks for the tightly run ship.

Bye for now

Mark

Biggles' Elder Brother - Moderator02/12/2010 00:05:56
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I'm thinking of nominating one of these for my Christmas pressie this year - any updated thoughts David? Or indeed anyone else who has tried one in the meantime since this thread was run?
 
BEB
David Ashby - Moderator02/12/2010 07:19:47
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Well mine is still flying fine BEB. No new comments other than it's better on calm days really. I've noticed a bit of wing flex when you're using throttle on a windy day which in turn doesn't help precision flying but then it is a bit small to take out in a blow.
 
  
James4004/12/2010 10:43:55
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885 forum posts
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Have Parkzone actually admitted a design fault in the wing or could it actually be part of the design? As far as I'm aware, a plane designed to fly aeros wouldn't want a high aspect ratio wing, possibly more of a flat wing, especially for inverted flight, etc?
David Ashby - Moderator04/12/2010 13:47:18
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....symetrical perhaps? although I'm no authority on the subject. I'm not sure that it's an aspect ratio problem, if indeed a problem there is, some say the wing has been inverted during production and while I can see what they're getting at from the visual perspective I don't share the opinion that the model flies badly in any sense.
Pzone (HH) initially suggested that the wing may have been mis-shapen due to the insertion of the re-inforcement (words to the effect) in production.
boggy12/12/2010 17:40:18
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and as i found out today they are tough little devils! fresh battery and it was up flying again:
 

 

Edited By Biggles' Elder Brother - Moderator on 12/12/2010 17:47:21

C Norton23/12/2010 23:56:44
170 forum posts
I love mine, as an ex full size driver with some aerobatic experience it certainly has a much more realistic feel to it than similar models I have tried. You can't just shove the sticks into the corners and expect it to behave nicely, it has to be flown through maneuvers (including landing) as I would imagine the full size does.
 
A number of complaints on the various forums refer to its poor 3D ability but E-Flite make it very plain that it is not designed to do this, and frankly I think scale models of full size aerobatic aircraft look rather ridiculous hovering etc ...... [ducks down under nearest parapet.....] 

Edited By C Norton on 23/12/2010 23:59:08

Ian Lunn01/02/2011 22:50:46
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8 forum posts
Hi Guys
 
Fiirstly a BIG THANKS to David for pointing me here (I am new to this)
 
I have read LOTS but, Im Stil not sold on the Extra .. But it is STILL high up my list! I THINK its a bit like the Panic years ago ( remember them ??)
 
Ther was an article somewhere about them having NEGATIVE incidence on the top wing! I checked mine and it did too... BUT.. THEN I realised! thats WHY it didnt stall easily! the BOTTOM wing would stall out and the TOP wing STILL had LIFT .. CLEVER! PTW the guys from AVICRAFT wouldnt comment.. they just said.. FLY IT! LOL
 
 
Anyways.. having said the Extra is on my list.. the only OTHER serious contender is the Edge 540 (Peter Besenyei) Red Bull Air Race Championship from Kyosho seen here at SMC>> http://www.sussex-model-centre.co.uk/shopexd.asp?id=31729
 
It LOOKS good ( but so does the Extra) but its about £70.00 more!
 
Anyone have any knowledge of this model too??
 
Sorry, maybe I should have posted a different thread, but Im new to this *forum* Stuff, but I will learn!
 
Any info on the above would be VERY welcome!
 
CHEERS!
 
Ian
 
 

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