Register

If this is your first visit, please click the Sign Up now button to begin the process of creating your account so you can begin posting on our forums! The Sign Up process will only take up about a minute of two of your time.

Page 16 of 17 FirstFirst ... 614151617 LastLast
Results 376 to 400 of 412

  1. #376

    Join Date
    Sep 2010
    Location
    AucklandAuckland, NEW ZEALAND
    Posts
    143
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Composite-ARF Lightning Build Thread

    Hello gents,
    I'm about three months away from a maiden on my ultra lightning. Can't wait. Attached are some pics of my electronic setup.The canopy smoking event didn't go too well, but I can live with it. As I understand it, the c of g location on the Ultra is on the wing tube with wings off, nose gear down and a full header tank. Can someone confirm this?I would also like to know if people have had any success with the Airpower EVSD-5U-PRO or the EVO multivalve units - in terms of long term reliability. A really neat unit for the lightning. The only problem is that I'm on my third unit soon due to failing pressure sensors in the unit, and I haven't even got off the ground yet. The failed pressure sensors pretty much make the unit useless. Dreamworks has been very supportive in this so I'm confident that my issue will be resolved.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	Qo39260.jpg 
Views:	72 
Size:	139.6 KB 
ID:	1695515   Click image for larger version. 

Name:	Rm36799.jpg 
Views:	40 
Size:	95.6 KB 
ID:	1695516  
    Comp-arf Ultra Lightning/ CARF/Skygate Hawk in da house / Evojet 180vx & 220ex!!! / Futaba 18mz / PowerBox Royal SRS/ EVSD-5U-EVO

  2. #377
    tassos p's Avatar
    Join Date
    Dec 2007
    Location
    DUBAI, UNITED ARAB EMIRATES
    Posts
    364
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Composite-ARF Lightning Build Thread


    ORIGINAL: topiwala

    As I understand it, the c of g location on the Ultra is on the wing tube with wings off, nose gear down and a full header tank. Can someone confirm this?
    This is what the CG used to be, now after so many years they actually measured it with the wings on. Here it is http://www.carf-models.com/public_ca...rtant_note.pdf

    By the way nice setup, both my UL have the same setup but for hydraulics I use Jet-tronics which I consider very reliable. But can I ask where is the second Rx hidden?

    Tassos

  3. #378

    Join Date
    Sep 2010
    Location
    AucklandAuckland, NEW ZEALAND
    Posts
    143
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Composite-ARF Lightning Build Thread

    Thanks. The second rx is still in the post. I'm waiting for it to turn up. No harm done with one rx on the ground.
    Comp-arf Ultra Lightning/ CARF/Skygate Hawk in da house / Evojet 180vx & 220ex!!! / Futaba 18mz / PowerBox Royal SRS/ EVSD-5U-EVO

  4. #379
    RCKen2's Avatar
    Join Date
    Dec 2011
    Location
    , OK
    Posts
    18
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Composite-ARF Lightning Build Thread

    Will this plain fly wiv big elastic band like the one I build in picture
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	By76394.jpg 
Views:	28 
Size:	47.7 KB 
ID:	1697935  

  5. #380

    Join Date
    Sep 2010
    Location
    AucklandAuckland, NEW ZEALAND
    Posts
    143
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Composite-ARF Lightning Build Thread

    For the Ultra lightning, what is the neutral elevator setting - with no flaps. Is it 2mm up at the root traling edge, just like the standard lightning? Or is it 0 neutral. There doesn't seem to be too much info around this. 
    Also, what elevator setting are you guys using for takeoff flap and then landing flap. I have takeoff flap at 15mm, and 85mm at landing. 

    I haven't maiden'd yet, so asking the above questions.

    Thanks




    Comp-arf Ultra Lightning/ CARF/Skygate Hawk in da house / Evojet 180vx & 220ex!!! / Futaba 18mz / PowerBox Royal SRS/ EVSD-5U-EVO

  6. #381
    Geoff White's Avatar
    Join Date
    May 2002
    Location
    Oxford, UNITED KINGDOM
    Posts
    1,121
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Composite-ARF Lightning Build Thread

    Look here - http://www.rcuniverse.com/forum/m_10...m.htm#10019152

    I posted some detailed info on my setup.

  7. #382

    Join Date
    Sep 2010
    Location
    AucklandAuckland, NEW ZEALAND
    Posts
    143
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Composite-ARF Lightning Build Thread

    Thanks Geoff. That is a great help. Quite surprised at the large elevator compensation values. My cg is on the tube as is yours. 
    Anyway, maiden flight coming this sunday - weather permitting. 
    Comp-arf Ultra Lightning/ CARF/Skygate Hawk in da house / Evojet 180vx & 220ex!!! / Futaba 18mz / PowerBox Royal SRS/ EVSD-5U-EVO

  8. #383
    Geoff White's Avatar
    Join Date
    May 2002
    Location
    Oxford, UNITED KINGDOM
    Posts
    1,121
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Composite-ARF Lightning Build Thread

    I know, the elevator correction on full flap seems a bit excessive but that is what it needs.

    The setup has been copied by a few fellow modellers and they are all happy with it. From memory, there was a french guy who was struggling to land his UL consistently so he asked for help and copied the settings and hasn't looked back since.

    Once you get it setup to your taste you will love flying your UL.

    Geoff.

  9. #384

    Join Date
    Jan 2007
    Location
    tampa, FL
    Posts
    1,041
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Composite-ARF Lightning Build Thread

    Just picked up my ultra lightning from my builder buddy....p180rx..what a nice engine...just fired it up for the first time...just like all jetcats boom perfect...taxied plane around and got center line steering right away...nice plane and awesome engine...man it really feels like its got some azz ..guys on your idle with 180..what's a good idle..I have it at 33000...is that good for this plane or a few more rpms?

  10. #385

    Join Date
    Sep 2010
    Location
    AucklandAuckland, NEW ZEALAND
    Posts
    143
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Composite-ARF Lightning Build Thread

    The UL has maiden'd...finally after the weather gods had a little mercy. It flew as clean and as straight as my patternship. And man it has some crazy speed range, from slow crawls to very high speed passes. With the EvoJet 180vx, it has more than enough to haul ass. Much of the flight spent around 50% throttle. I was very surprised at the amount of elevator mix with flap. I had conservatively setup the mixing, but realised that it needed a lot more. With my original settings, I was holding down elevator during approaches. If and when slowed down enough, it lands like a patternship...nearly as slow. The only problem i had was slowing it down enough. I think all my approach down winds were way too high. Just need the confidence to start lower and fly it in.  
    I had to do a couple of go-arounds after overshooting, and the evojet picked up to full throttle in great time. 
    Coming from patternships, I need to think 'lag'...as there is a good amount of it compared to patternships.  
    UL and Evojet combination - lovin it so far. 
    Can't wait for the next session infact!!!
    Comp-arf Ultra Lightning/ CARF/Skygate Hawk in da house / Evojet 180vx & 220ex!!! / Futaba 18mz / PowerBox Royal SRS/ EVSD-5U-EVO

  11. #386

    Join Date
    Jan 2007
    Location
    tampa, FL
    Posts
    1,041
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Composite-ARF Lightning Build Thread

    WELL I DID THE MAIDEN WITH MY ULTRA LIGHTNING YESTURDAY...PERFECT!!!!!! THE JETCAT 180RX PERFORMED FLAWLESSLY.. VERY FAST AND VERY SLOW... LANDINGS ARE VERY PRECISE..LANDS VERY SLOW...THE FLAPS ARE SO EFFECTIVE AND MAKES THE LANDING EASY.. I DID HAVE TO ADD A GOOD AMOUNT OF DOWN ELEVATOR MIX TO FLAP AND PUT IN A DELAY SO IT LEVELED OUT VERY SMOOTHLY...MUCH MORE PRECISE FLYING MACHINE THEN MY ULTRA FLASH..I LOVE THIS PLANE ..

  12. #387
    Carsten Groen's Avatar
    Join Date
    Nov 2004
    Location
    Hedensted, , DENMARK
    Posts
    1,406
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Composite-ARF Lightning Build Thread

    Congratulations
    Can you maybe say something about the difference between the UF and UL, especially landings (I know, you have not that many flights on the UL yet )
    I have a UF with a P160SX and wingtank (having about 50 flights on it so far, and LOVE it!), and a UL with a P200SX in it, yet to maiden

    Carsten Groen

  13. #388

    Join Date
    Jan 2007
    Location
    tampa, FL
    Posts
    1,041
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Composite-ARF Lightning Build Thread

    hello there.. the ultra lightning has a great sink rate when using the throttle in the pattern.. the flash really floats which isnt a bad thing.. the ultra lightning is really like flying a big flash..you will love the ultra lightning...they are both fantastic flyers

  14. #389

    Join Date
    Jan 2007
    Location
    tampa, FL
    Posts
    1,041
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Composite-ARF Lightning Build Thread

    hello put another 5 flights on my ultra lightning this past weekend.. just keeps getting better...did you fly yours yet?...it was about a 15mph quartering headwind...the plane doesnt care..it beats the air....i love the way this plane acts in the pattern with the throttle...if you havent maidened your yet you are in for a treat...pat

  15. #390

    Join Date
    Sep 2010
    Location
    AucklandAuckland, NEW ZEALAND
    Posts
    143
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Composite-ARF Lightning Build Thread

    Well folks, I have now completed 8 flights on the UL with the Evojet 180vx. This engine is just awesome for power. I am on 40-50% on almost all phases of fight. Only straight vertical is where 100% comes into play. Otherwise, with simple power management most manouvers are with around 50-60% throttle at most. 

    The only thing I am yet to figure out is the occurance of bounce on landings. I always approach with a steady sink rate, with no attitude changes, down to a flair. On the final I'm on idle. 
    But out of the 8 flights so far, I have had two messy bouncy landings. I can't figure out why. Is my speed too low/fast, sink rate too high. 
    The thing is, it all looks nice and steady until touch down, and then the dreaded bounce sets in, and then its just hoping for the best outcome. 
    Though when it does happen right, it greases in. I'm using stock CARF UL gear setup. I broke a spring on my last bouncy landing. 
    I glad that the airframe is this strong. We fly of a tarmac runway on an airforce base. So there is no forgiveness from the ground!!

    And help would be fantastic. 

    Are the prolink struts any better at reducing bounce?
    Comp-arf Ultra Lightning/ CARF/Skygate Hawk in da house / Evojet 180vx & 220ex!!! / Futaba 18mz / PowerBox Royal SRS/ EVSD-5U-EVO

  16. #391

    Join Date
    Jan 2007
    Location
    tampa, FL
    Posts
    1,041
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Composite-ARF Lightning Build Thread

    the ultra lightning is a big heavy plane which you should notcut power until one wing length.. i always hold about a quarter on until i get into ground effects.. the sink rate can be decieving with this plane..it will sink fast with power off...this plane love to do 3 pointers on landing... all in all its the best plane i have ever flown ....

  17. #392

    Join Date
    Sep 2010
    Location
    AucklandAuckland, NEW ZEALAND
    Posts
    143
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Composite-ARF Lightning Build Thread

    Thanks 
    Yeah I'm probably being fooled by the sink rate on this one. Any thoughts on the prolink struts? Are they better/worst then comparf stock UL trailing struts?

    Comp-arf Ultra Lightning/ CARF/Skygate Hawk in da house / Evojet 180vx & 220ex!!! / Futaba 18mz / PowerBox Royal SRS/ EVSD-5U-EVO

  18. #393

    Join Date
    Jan 2007
    Location
    tampa, FL
    Posts
    1,041
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Composite-ARF Lightning Build Thread

    check out my video on youtube under pat roses ultra lightning... you will see a slight bounce due to i cut power a little early ....but all is good...

  19. #394

    Join Date
    Jan 2007
    Location
    tampa, FL
    Posts
    1,041
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Composite-ARF Lightning Build Thread

    do the bohetic prolink setup....awesome!!!!

  20. #395

    Join Date
    Sep 2010
    Location
    AucklandAuckland, NEW ZEALAND
    Posts
    143
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Composite-ARF Lightning Build Thread

    Saw the video. Nice. I love how my UL tracks thru pattern aerobatics. What sort of flight time you getting with the 180rx. I have a 7 min timer. I land on the 7th. Probably 1.5 ltr fuel remaining in tanks. That's with a 180vx evojet. 
    I might go with prolink struts on my behotec units. They look a lot stiffer then the stock. 
    Comp-arf Ultra Lightning/ CARF/Skygate Hawk in da house / Evojet 180vx & 220ex!!! / Futaba 18mz / PowerBox Royal SRS/ EVSD-5U-EVO

  21. #396
    tassos p's Avatar
    Join Date
    Dec 2007
    Location
    DUBAI, UNITED ARAB EMIRATES
    Posts
    364
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Composite-ARF Lightning Build Thread


    ORIGINAL: topiwala
    The only thing I am yet to figure out is the occurance of bounce on landings. I always approach with a steady sink rate, with no attitude changes, down to a flair. On the final I'm on idle.*
    But out of the 8 flights so far, I have had two messy bouncy landings. I can't figure out why. Is my speed too low/fast, sink rate too high.*
    The thing is, it all looks nice and steady until touch down, and then the dreaded bounce sets in, and then its just hoping for the best outcome.
    Well done on your first flights. Try to install a crow function. The hopping will go away forever, never again will you see it and no matter your landing speed.

    Tassos

  22. #397

    Join Date
    Sep 2010
    Location
    AucklandAuckland, NEW ZEALAND
    Posts
    143
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Composite-ARF Lightning Build Thread

    Hi tassos. 
    Thanks Im thinking of doing crow. How much up aileron do you set with full flap. 
    Comp-arf Ultra Lightning/ CARF/Skygate Hawk in da house / Evojet 180vx & 220ex!!! / Futaba 18mz / PowerBox Royal SRS/ EVSD-5U-EVO

  23. #398
    tassos p's Avatar
    Join Date
    Dec 2007
    Location
    DUBAI, UNITED ARAB EMIRATES
    Posts
    364
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Composite-ARF Lightning Build Thread


    ORIGINAL: topiwala

    Hi tassos.*
    Thanks Im thinking of doing crow. How much up aileron do you set with full flap.*
    Not too much. I don't remember rexactly and I'll be away from home for 2 weeks to verify it for you. I can tell you I did it by trial and error, experimenting some settings and at the end the landings became so much smoother.

    Maybe try 5mm at the outer edge of the aileron.

    Tassos

  24. #399

    Join Date
    Jan 2007
    Location
    tampa, FL
    Posts
    1,041
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Composite-ARF Lightning Build Thread

    i set my timer to 8 min..i fly 7 ... the big blocks eat lots of fuel

  25. #400
    Geoff White's Avatar
    Join Date
    May 2002
    Location
    Oxford, UNITED KINGDOM
    Posts
    1,121
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Composite-ARF Lightning Build Thread

    I have a p180rx in my UL and I set the timer to 9:30 minutes. Timer starts at gear up and I go into landing approach when the timer goes off.


Page 16 of 17 FirstFirst ... 614151617 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
All times are GMT -6. The time now is 10:23 PM.

SEO by vBSEO 3.6.1 ©2011, Crawlability, Inc.