RCU Forums

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

C-ARF Ultra Flash build Thread + Video

Register
FAQ
Community
Calendar
Today's Posts
Search
Vendor Directory
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 07-05-2020, 09:51 AM
  #6551  
seattlebuoy
My Feedback: (1)
 
Join Date: Jan 2012
Location: FlagstaffAZ
Posts: 25
Likes: 0
Received 1 Like on 1 Post
Default
Originally Posted by Dave Wilshere
You getting wheel hang up? Lube the leg pivot pins to allow the lower leg to straighten after take off.
Good eyes. One of the struts rotated slightly from a ground loop due to the brakes locking up and did not retract all the way.
seattlebuoy is offline  
Reply Like
Old 07-05-2020, 06:02 PM
  #6552  
Dansy
My Feedback: (53)
 
Dansy's Avatar
 
Join Date: Mar 2002
Location: Prescott, Ont.
Posts: 2,990
Received 159 Likes on 142 Posts
Default
Did anybody installed a set of electron in the EVO?

Will they fit?

Already own a set of UF Electron.....
Dansy is online now  
Reply Like
Old 07-05-2020, 06:06 PM
  #6553  
bodywerks
My Feedback: (4)
 
bodywerks's Avatar
 
Join Date: Dec 2004
Location: Elgin, AZ
Posts: 3,899
Received 60 Likes on 55 Posts
Default
Originally Posted by bodywerks
I did encounter a really weird trim change with gear down and landing flaps. Basically, I think the nose door is causing the nose to dive. I'm sure I'm not the only one that has encountered this. My question is what are you doing to counter it? I originally set up my flap/elevator trim on the maiden, but with gear up. And I want it trimmed that way in case I want to do low, slow fly bys. And then when I went to land and put gear down it started diving to the ground. I know I can do an ele/ele mix assigned to the gear switch, but then I'd be way out of trim until the gear came down fully.
Ideas?
Well, 99.98% sure I discovered my, err, issue...I never set my trims to link to my flight mode/ flap switch! I had an approximate amount of down elevator set up in my flap system, but I was also slightly noseheavy to begin with, so up trim for normal flight also reduced down elevator for flaps, lol. Rookie!
weather permitting I'll give it another go this week...
bodywerks is offline  
Reply Like
Old 07-16-2020, 10:26 AM
  #6554  
Dave Wilshere
Thread Starter
 
Join Date: Jun 2002
Location: Watford, UNITED KINGDOM
Posts: 13,101
Received 735 Likes on 531 Posts
Default
September is 10 years since this thread started...so I thought I should build an Evo. Iconic scheme for an an Iconic aeroplane.
Last edited by Dave Wilshere; 07-16-2020 at 10:29 AM.
Dave Wilshere is offline  
Reply Like
The following 2 users liked this post by Dave Wilshere:
Canadian Man (07-16-2020), Tom ling (07-16-2020)
Old 07-16-2020, 07:26 PM
  #6555  
bodywerks
My Feedback: (4)
 
bodywerks's Avatar
 
Join Date: Dec 2004
Location: Elgin, AZ
Posts: 3,899
Received 60 Likes on 55 Posts
Default
I saw those pics. Pretty sweet. Weather allowing, I'll fly again saturday, with trims set properly!
bodywerks is offline  
Reply Like
Old 07-22-2020, 11:46 PM
  #6556  
seaside535
 
Join Date: Dec 2014
Location: Seaside Ca
Posts: 30
Received 3 Likes on 2 Posts
Default
I need some help, I had not so good of a landing on my last flight of the UF, (broke main right retract pin) nose gear needed some adjustments,
now when i retract the nose gear it want to twist about 1/4 of an inch making the nose wheel hit the fuse, I don't have a programmer for my Behotec c-40 retracts.
any ideas? on how to fix this.
seaside535 is offline  
Reply Like
Old 07-23-2020, 09:02 AM
  #6557  
Dave Wilshere
Thread Starter
 
Join Date: Jun 2002
Location: Watford, UNITED KINGDOM
Posts: 13,101
Received 735 Likes on 531 Posts
Default
Picture in the up and down position please
Dave Wilshere is offline  
Reply Like
Old 07-24-2020, 11:48 AM
  #6558  
seaside535
 
Join Date: Dec 2014
Location: Seaside Ca
Posts: 30
Received 3 Likes on 2 Posts
Default servo movement
seaside535 is offline  
Reply Like
Old 07-24-2020, 01:57 PM
  #6559  
Dave Wilshere
Thread Starter
 
Join Date: Jun 2002
Location: Watford, UNITED KINGDOM
Posts: 13,101
Received 735 Likes on 531 Posts
Default
So the steering servo is through the Behotec controller? I don’t see how the heavy landing made the controller change the neutral position between steering on and off to retract. The steering still works with the gear down? Switches off gear up?

Dave
Dave Wilshere is offline  
Reply Like
Old 07-24-2020, 01:58 PM
  #6560  
Dave Wilshere
Thread Starter
 
Join Date: Jun 2002
Location: Watford, UNITED KINGDOM
Posts: 13,101
Received 735 Likes on 531 Posts
Default
Originally Posted by Dansy
Did anybody installed a set of electron in the EVO?

Will they fit?

Already own a set of UF Electron.....
CARF are now offering the Evo without gear, Electron is a fitting option, so yes
Dave Wilshere is offline  
Reply Like
Old 07-24-2020, 11:15 PM
  #6561  
seaside535
 
Join Date: Dec 2014
Location: Seaside Ca
Posts: 30
Received 3 Likes on 2 Posts
Default
yes the steering servo is through the controller , the steering works fine, tomorrow im going to go direct steering and do a mix so its disabled when the gear switch is activated going up
seaside535 is offline  
Reply Like
Old 07-28-2020, 02:42 PM
  #6562  
Mi-25
 
Join Date: Nov 2003
Location: Hong Kong, CHINA
Posts: 221
Received 0 Likes on 0 Posts
Default
Originally Posted by Dave Wilshere
It’s balanced at 230-232mm with landing fuel level in main tank?
Hi Dave,
do you burn the small extra wing tank first and then the main one ?
Thanks,
Leon
Mi-25 is offline  
Reply Like
Old 07-28-2020, 09:08 PM
  #6563  
Dave Wilshere
Thread Starter
 
Join Date: Jun 2002
Location: Watford, UNITED KINGDOM
Posts: 13,101
Received 735 Likes on 531 Posts
Default
Yes, wing tank is first to empty.

Dave
Dave Wilshere is offline  
Reply Like
Old 07-29-2020, 06:32 AM
  #6564  
Mi-25
 
Join Date: Nov 2003
Location: Hong Kong, CHINA
Posts: 221
Received 0 Likes on 0 Posts
Default
Originally Posted by Dave Wilshere
Yes, wing tank is first to empty.

Dave
Thanks for that, will do.
I’m trying to source a replacement gear set for a DS JR 8421. Only 1x nylon gear has teeth missing. Can you help or steer me elsewhere?
tks,
Mi-25 is offline  
Reply Like
Old 07-29-2020, 09:00 AM
  #6565  
Dave Wilshere
Thread Starter
 
Join Date: Jun 2002
Location: Watford, UNITED KINGDOM
Posts: 13,101
Received 735 Likes on 531 Posts
Default
It’s the same gear set (nylon bits) as the 8231 or you can fit 8411 metal gears

Dave
Dave Wilshere is offline  
Reply Like
The following users liked this post:
bodywerks (07-29-2020)
Old 07-29-2020, 05:23 PM
  #6566  
Mi-25
 
Join Date: Nov 2003
Location: Hong Kong, CHINA
Posts: 221
Received 0 Likes on 0 Posts
Default
Originally Posted by Dave Wilshere
It’s the same gear set (nylon bits) as the 8231 or you can fit 8411 metal gears

Dave
Thanks for that info. My problem is finding the spare gear set. The JR agent here in HK has closed down. Can you recommend where to buy plse?
Mi-25 is offline  
Reply Like
Old 07-29-2020, 09:11 PM
  #6567  
Dave Wilshere
Thread Starter
 
Join Date: Jun 2002
Location: Watford, UNITED KINGDOM
Posts: 13,101
Received 735 Likes on 531 Posts
Default
I can only suggest an internet search, there has been no new stock for several years.

Dave
Dave Wilshere is offline  
Reply Like
Old 07-30-2020, 12:47 AM
  #6568  
Mi-25
 
Join Date: Nov 2003
Location: Hong Kong, CHINA
Posts: 221
Received 0 Likes on 0 Posts
Default
Originally Posted by Dave Wilshere
I can only suggest an internet search, there has been no new stock for several years.

Dave
Already tried that - no joy !

Dave, can you tell me what the max flap setting was that you settled on for your UF?

And are the ELEV and AIL deflections measured on the inboard of each surface...tks
Mi-25 is offline  
Reply Like
Old 07-30-2020, 03:42 AM
  #6569  
Dave Wilshere
Thread Starter
 
Join Date: Jun 2002
Location: Watford, UNITED KINGDOM
Posts: 13,101
Received 735 Likes on 531 Posts
Default
105mm

In board gives a good feel for the first flight, then tune, elevator is quite sensitive, so expo needed 35%
Dave Wilshere is offline  
Reply Like
The following users liked this post:
Mi-25 (07-30-2020)
Old 08-03-2020, 04:33 AM
  #6570  
Scott Baker
Junior Member
 
Join Date: Dec 2019
Posts: 24
Likes: 0
Received 3 Likes on 2 Posts
Default
Does the thrust tube from the UF fit in the new EVO?
Scott Baker is offline  
Reply Like
Old 08-03-2020, 10:55 AM
  #6571  
Dave Wilshere
Thread Starter
 
Join Date: Jun 2002
Location: Watford, UNITED KINGDOM
Posts: 13,101
Received 735 Likes on 531 Posts
Default
Yes, fuselage is basically the same.
Dave Wilshere is offline  
Reply Like
Old 08-03-2020, 01:15 PM
  #6572  
peter 098
 
Join Date: Jan 2019
Posts: 128
Received 10 Likes on 5 Posts
Default
Hello, i was just wondering if anyone has flown the ultra flash with a k-80 or equivalent, If so how does it fly? thank you.
peter 098 is offline  
Reply Like
Old 08-03-2020, 11:39 PM
  #6573  
Scott Baker
Junior Member
 
Join Date: Dec 2019
Posts: 24
Likes: 0
Received 3 Likes on 2 Posts
Default
Thanks Dave!
Scott Baker is offline  
Reply Like
Old 08-04-2020, 12:33 AM
  #6574  
Dave Wilshere
Thread Starter
 
Join Date: Jun 2002
Location: Watford, UNITED KINGDOM
Posts: 13,101
Received 735 Likes on 531 Posts
Default
80N turbines are OK, The JetCat P-80 works fine, but the new small high efflux turbines the stock tail pipe is too big and you will lose lots of static thrust.

P-80 powered Classic Flash I set up and flew Saturday. It was off in 300’ on grass.


Dave Wilshere is offline  
Reply Like
Old 08-04-2020, 08:13 AM
  #6575  
peter 098
 
Join Date: Jan 2019
Posts: 128
Received 10 Likes on 5 Posts
Default
So a kingtech k-85 g4 would not work with the stock tail pipe?
peter 098 is offline  
Reply Like



Advanced Search

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.