Go Back  RCU Forums > RC Airplanes > RC Jets
Reload this Page >

C-ARF Ultra Flash build Thread + Video

Community
Search
Notices
RC Jets Discuss RC jets in this forum plus rc turbines and ducted fan power systems

C-ARF Ultra Flash build Thread + Video

Thread Tools
 
Search this Thread
 
Old 08-23-2012, 04:00 AM
  #2051  
Dave Wilshere
Thread Starter
 
Join Date: Jun 2002
Location: Watford, UNITED KINGDOM
Posts: 13,101
Received 735 Likes on 531 Posts
Default RE: C-ARF Ultra Flash build Thread + Video

OK, thought so, your wheels are further forward than standard.

Regards

Dave
Old 08-23-2012, 07:33 AM
  #2052  
havard.j
Junior Member
 
Join Date: Jan 2008
Location: , NORWAY
Posts: 25
Likes: 0
Received 0 Likes on 0 Posts
Default RE: C-ARF Ultra Flash build Thread + Video


No opinions here?

ORIGINAL: havard.j

Which flap setting would be optimal for very slow flight with gear up?
Old 08-23-2012, 08:14 AM
  #2053  
IFlyEm35
My Feedback: (5)
 
IFlyEm35's Avatar
 
Join Date: Nov 2002
Location: Temecula, CA
Posts: 632
Received 0 Likes on 0 Posts
Default RE: C-ARF Ultra Flash build Thread + Video


ORIGINAL: izzy


ORIGINAL: IFlyEm35

I am using JR TX/RX. I am no longer using Spektrum RX's.
Iflyem35
What happened. In a previous post you said you also use Spektrum
Thanks izzy
Sorry for the delay Izzy. Never saw your post.

I have decided to steer away from mixing JR/Spektrum because of the falling out between the 2 companies. Apparently Spektrum and JR had an "agreement" that JR would focus on higher end radios while Spektrum would stick with the more "entry level" and basic radios. Well JR got their noses a little out of joint about the 8 channel then REALLY got torqued when the 18 channel came out. So due to that I have decided to spend the extra few bucks and go with JR rx's for my 12X.
Old 08-23-2012, 08:27 AM
  #2054  
IFlyEm35
My Feedback: (5)
 
IFlyEm35's Avatar
 
Join Date: Nov 2002
Location: Temecula, CA
Posts: 632
Received 0 Likes on 0 Posts
Default RE: C-ARF Ultra Flash build Thread + Video

Delamination....

I see that there are some posts on control surface delamination. I can't find much detail about it. What is happening?

Thanks!
Old 08-23-2012, 08:38 AM
  #2055  
ricardinho
Senior Member
 
Join Date: Jan 2007
Location: tampa, FL
Posts: 1,041
Likes: 0
Received 0 Likes on 0 Posts
Default RE: C-ARF Ultra Flash build Thread + Video

on some of the earlier kits there was a small issue on the elevator delaminating slightly..easy fix....mine was on the top of the elevator where the elastic hinge is...like i said though this was i think only on the first kits....
Old 08-23-2012, 08:50 AM
  #2056  
Dave Wilshere
Thread Starter
 
Join Date: Jun 2002
Location: Watford, UNITED KINGDOM
Posts: 13,101
Received 735 Likes on 531 Posts
Default RE: C-ARF Ultra Flash build Thread + Video

Flap setting as landing for slow flight! I still like lots of Flap and don't have any changes gear up or down.

Any Flash kit since 2006 can have it if you rest the control horns on a surface and a 18lb fuselage! I added an MAP tip skid the the back end of the buffer chine and that helps...

Dw
Old 08-23-2012, 08:53 AM
  #2057  
IFlyEm35
My Feedback: (5)
 
IFlyEm35's Avatar
 
Join Date: Nov 2002
Location: Temecula, CA
Posts: 632
Received 0 Likes on 0 Posts
Default RE: C-ARF Ultra Flash build Thread + Video

Got it. So as long as dont rest the model on the control horns I'll be good.
Old 08-23-2012, 10:20 AM
  #2058  
Dave Wilshere
Thread Starter
 
Join Date: Jun 2002
Location: Watford, UNITED KINGDOM
Posts: 13,101
Received 735 Likes on 531 Posts
Default RE: C-ARF Ultra Flash build Thread + Video

Yes....

Dw
Old 08-23-2012, 11:18 AM
  #2059  
havard.j
Junior Member
 
Join Date: Jan 2008
Location: , NORWAY
Posts: 25
Likes: 0
Received 0 Likes on 0 Posts
Default RE: C-ARF Ultra Flash build Thread + Video

ORIGINAL: Dave Wilshere

Flap setting as landing for slow flight! I still like lots of Flap and don't have any changes gear up or down.

Dw
Ok thanks. My UF climb much with full flap and gear up. I am not comfortable with pushing down elevator for low level flight.
Old 08-23-2012, 12:35 PM
  #2060  
lightningmcnulty
My Feedback: (11)
 
Join Date: Sep 2010
Location: marina del rey, CA
Posts: 199
Likes: 0
Received 0 Likes on 0 Posts
Default RE: C-ARF Ultra Flash build Thread + Video

thats either because you don't have enough down mixed in or your not flying slowly enough.

with full flaps you should be in the 25 to 40 mph range without balooning



ORIGINAL: havard.j


ORIGINAL: Dave Wilshere

Flap setting as landing for slow flight! I still like lots of Flap and don't have any changes gear up or down.

Dw
Ok thanks. My UF climb much with full flap and gear up. I am not comfortable with pushing down elevator for low level fligth.
Old 08-23-2012, 12:50 PM
  #2061  
djdjm600
Junior Member
 
Join Date: Feb 2005
Location: Toulouse, FRANCE
Posts: 27
Likes: 0
Received 0 Likes on 0 Posts
Default RE: C-ARF Ultra Flash build Thread + Video

Hi all, you can find all my Ultra photos on : [link]http://www.dauch.fr/UltraFlash.html[/link]

You can watch my new Onborad UltraFlash video on : [link]http://www.youtube.com/watch?v=_XjwniYGHCg[/link]
[youtube]http://www.youtube.com/watch?v=_XjwniYGHCg[/youtube]

ORIGINAL: basimpsn
Very nice flight what for power ?
Thanks,I have 12kg trust.


ORIGINAL: BaldEagel
And where abouts in France?
Mike
Hi Mike, I come for Toulouse (31).

Regards,
Fred
[link]http://www.dauch.fr/[/link]
Old 08-23-2012, 05:33 PM
  #2062  
basimpsn
My Feedback: (5)
 
Join Date: Dec 2001
Location: Mia, FL
Posts: 2,580
Received 4 Likes on 4 Posts
Default RE: C-ARF Ultra Flash build Thread + Video


ORIGINAL: djdjm600

Hi all, you can find all my Ultra photos on : [link]http://www.dauch.fr/UltraFlash.html[/link]

You can watch my new Onborad UltraFlash video on : [link]http://www.youtube.com/watch?v=_XjwniYGHCg[/link]
[youtube]http://www.youtube.com/watch?v=_XjwniYGHCg[/youtube]

ORIGINAL: basimpsn
Very nice flight what for power ?
Thanks,I have 12kg trust.


ORIGINAL: BaldEagel
And where abouts in France?
Mike
Hi Mike, I come for Toulouse (31).

Regards,
Fred
[link]http://www.dauch.fr/[/link]
Very nice video [8D] love your flight and how scale your landing gears retract.
Old 08-24-2012, 04:46 AM
  #2063  
djdjm600
Junior Member
 
Join Date: Feb 2005
Location: Toulouse, FRANCE
Posts: 27
Likes: 0
Received 0 Likes on 0 Posts
Default RE: C-ARF Ultra Flash build Thread + Video

Thanks ! You can find more information about my retract at : [link]http://www.e-retract.com/fr/[/link]

For me, it is the best !

Regards
Fred
[link]http://www.dauch.fr/[/link]
Old 08-24-2012, 09:02 AM
  #2064  
lightningmcnulty
My Feedback: (11)
 
Join Date: Sep 2010
Location: marina del rey, CA
Posts: 199
Likes: 0
Received 0 Likes on 0 Posts
Default RE: C-ARF Ultra Flash build Thread + Video

I brought electron retracts, they are awesome! fantastic build quality and great customer service at the factory!!


Old 08-24-2012, 05:09 PM
  #2065  
rcand
Senior Member
 
Join Date: Jul 2002
Location: coral springs, FL
Posts: 434
Likes: 0
Received 0 Likes on 0 Posts
Default RE: C-ARF Ultra Flash build Thread + Video

Setting up the control surfaces on my UF, the manual gives amount of travel but does not say to measure at the tip or root of the elevator or aileron. Anyone know. I believe they call fro 22mm at high rate for both.
Old 08-25-2012, 05:30 AM
  #2066  
PHIL GREENO
Senior Member
 
Join Date: Jun 2010
Location: HarrowMiddlesex, UNITED KINGDOM
Posts: 204
Likes: 0
Received 0 Likes on 0 Posts
Default RE: C-ARF Ultra Flash build Thread + Video

With the UFi have 5mm of down elevator(measured at tip)mixed in with full flap for landing or slow fly bys.This gives a slight nose down trim which i like.No ballooning which is a nightmare to control.I use 3 flight conditions on a 3 postion switch (1- normal flight no flap ,2-take off flap, 3-landing full flap) Using flight conditions you can add any elevator trim you need in any condition and it will save that trim position.Phil.
Old 08-25-2012, 05:58 AM
  #2067  
PHIL GREENO
Senior Member
 
Join Date: Jun 2010
Location: HarrowMiddlesex, UNITED KINGDOM
Posts: 204
Likes: 0
Received 0 Likes on 0 Posts
Default RE: C-ARF Ultra Flash build Thread + Video

I find the movements given in the manual for elevator and aileron too much.I know this is a personal preference but for thUF i use as below.

Elevator +10mm up - 11mm down (measured at tip) 50% expo - flight mode 1 normal flight 25%expo landing flight mode 3

Aileron +9mm up - 10mm down(measured at tip) 45% expo - same in all flight conditions.

Phil

Old 08-25-2012, 09:56 AM
  #2068  
havard.j
Junior Member
 
Join Date: Jan 2008
Location: , NORWAY
Posts: 25
Likes: 0
Received 0 Likes on 0 Posts
Default RE: C-ARF Ultra Flash build Thread + Video


Video from today. This is in the middle of Norway.


http://youtu.be/XsaQgjBXHEw
Old 08-25-2012, 02:27 PM
  #2069  
rcand
Senior Member
 
Join Date: Jul 2002
Location: coral springs, FL
Posts: 434
Likes: 0
Received 0 Likes on 0 Posts
Default RE: C-ARF Ultra Flash build Thread + Video


ORIGINAL: PHIL GREENO

I find the movements given in the manual for elevator and aileron too much.I know this is a personal preference but for thUF i use as below.

Elevator +10mm up - 11mm down (measured at tip) 50% expo - flight mode 1 normal flight 25% expo landing flight mode 3

Aileron +9mm up - 10mm down(measured at tip) 45% expo - same in all flight conditions.

Phil


thanks, big help. I thought the measurements in the manual were a bit much
Old 08-25-2012, 02:57 PM
  #2070  
djdjm600
Junior Member
 
Join Date: Feb 2005
Location: Toulouse, FRANCE
Posts: 27
Likes: 0
Received 0 Likes on 0 Posts
Default RE: C-ARF Ultra Flash build Thread + Video

ORIGINAL: havard.j


Video from today. This is in the middle of Norway.


http://youtu.be/XsaQgjBXHEw

Hi, good job ! And crazy airport, I love it.

Today :

But only 12kg trust... LOL

Regards
Fred
[link]http://www.dauch.fr/[/link]
Old 08-25-2012, 06:33 PM
  #2071  
Airforce7
My Feedback: (31)
 
Airforce7's Avatar
 
Join Date: Feb 2004
Location: Brentwood, CA
Posts: 1,123
Received 18 Likes on 17 Posts
Default RE: C-ARF Ultra Flash build Thread + Video

@harvard.j

Incredible flying site. Please put a camera on your flash and video a flight up next to the mountian with the waterfall. That would be sweet!
Old 08-25-2012, 07:55 PM
  #2072  
indubitably
My Feedback: (14)
 
Join Date: Dec 2008
Location: Bakersfield, CA
Posts: 321
Likes: 0
Received 0 Likes on 0 Posts
Default RE: C-ARF Ultra Flash build Thread + Video

I had posted similar speeds (a friends UF) with a P120. I think 273 mph, just to indicate how fast these planes are capable of. Some had a hard time believing the speeds posted. But i think they were flying UFs with another brand of jet. Go JetCat!!



Old 08-27-2012, 01:39 PM
  #2073  
lightningmcnulty
My Feedback: (11)
 
Join Date: Sep 2010
Location: marina del rey, CA
Posts: 199
Likes: 0
Received 0 Likes on 0 Posts
Default RE: C-ARF Ultra Flash build Thread + Video

I gave up accelerating at 250 into the wind with mine, just need more space ha ha
Old 08-28-2012, 10:58 AM
  #2074  
stevekott
 
stevekott's Avatar
 
Join Date: Nov 2006
Location: yorba linda, CA
Posts: 595
Likes: 0
Received 0 Likes on 0 Posts
Default RE: C-ARF Ultra Flash build Thread + Video

Sorry guys If this is repetitive.

I just converted my Standard Flash to the Ultra Flash. I can't find in the manual addendum the measurement for Take-Off Flaps and Full Landing flaps. Any advise would be appreciated.

Also it looks like the CG is set at 220-225mm back from the wing/fuselage joint with the gear UP. Oops I set it last night with the gear DOWN. Does that sound like the proper GC?

Thanks,
Steve

Old 08-28-2012, 12:35 PM
  #2075  
Dave Wilshere
Thread Starter
 
Join Date: Jun 2002
Location: Watford, UNITED KINGDOM
Posts: 13,101
Received 735 Likes on 531 Posts
Default RE: C-ARF Ultra Flash build Thread + Video

Steve

Makes little difference gear up or down, its enough for you to safely fly, then adjust to suit your feel


The flap settings for the Ultra Flash are:
Take off 25-28mm (1-1 1/8”). Landing 95-100mm (3 ¾” to 4”) both figures measured at the root, trailing edge of each flap.
The Ultra Flash requires down elevator with flap. Take off 1mm and Landing 4mm measured at the elevator trailing edge tip. Exact figures will be affected by balance position.

Some people like less flap....not me though

Dave


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.