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 33 of 173 FirstFirst ... 2331323334354383133 ... LastLast
Results 801 to 825 of 4307

  1. #801

    Join Date
    Jun 2002
    Location
    Watford, UNITED KINGDOM
    Posts
    7,464
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: C-ARF Ultra Flash build Thread + Video

    Jeremy

    Spray, masked off the opening and fuse/duct V from the wing opening.

    The wood trays will be painted probably a grey colour like my P120SX UF, the cockpit is a special grey primer/filler as it fills the weave in one coat and the model (as seen in previous posts) does not hurt from a little extra nose weight. The fuse wood work was sealed with ZAP 40 rubbed down with BVM scuff boards.

    Dave
    Motors & Rotors. JetCat, Powerbox, Intairco, Behotec, Graupner. CARF-models Rep. JR Propo for ever!, Jet 1A, MAP, Evojet, BVM

  2. #802

    Join Date
    Jun 2008
    Location
    st catharines, ON, CANADA
    Posts
    32
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: C-ARF Ultra Flash build Thread + Video

    Thanks for the return feedback. Again thank you.

  3. #803
    AFTERBURNER1's Avatar
    Join Date
    Jun 2003
    Location
    Anaheim Hills, CA
    Posts
    4,354
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: C-ARF Ultra Flash build Thread + Video


    ORIGINAL: AFTERBURNER1

    So it is to be balanced gear up yes? I see another balanced it gear down.
    The install on my update kit is almost complete. I did notice some rib lines on the top of the wing. Has Anyone elses wing had this?
    JETCAT USA

  4. #804
    Carsten Groen's Avatar
    Join Date
    Nov 2004
    Location
    Hedensted, , DENMARK
    Posts
    1,402
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: C-ARF Ultra Flash build Thread + Video


    ORIGINAL: AFTERBURNER1
    .
    I did notice some rib lines on the top of the wing. Has Anyone elses wing had this?
    Yes, on mine too (and my friends), also on my "old" Flash
    Carsten Groen

  5. #805
    AFTERBURNER1's Avatar
    Join Date
    Jun 2003
    Location
    Anaheim Hills, CA
    Posts
    4,354
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: C-ARF Ultra Flash build Thread + Video

    Ok, thanks ,, just making sure mine was not the only one.
    JETCAT USA

  6. #806

    Join Date
    Feb 2002
    Location
    dracut, MA
    Posts
    885
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: C-ARF Ultra Flash build Thread + Video

    yup got them on mine also

  7. #807
    mtnflyer14's Avatar
    Join Date
    Jan 2006
    Location
    Colorado Springs, CO
    Posts
    519
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: C-ARF Ultra Flash build Thread + Video

    +1 on the rib lines; not a problem. However, today I discovered that both elevators and the left flap have delamination forward of the hingeline. The delamination is more than 1/4 inch into the elevator forward of the hingeline on the elevators and the left flap delamination is extreme. I will get pics posted in the next couple days, but right now my UF is unflyable. My UF has 12 flights on it with a P-120 and I don't fly it hard. I recommend everyone check their horizontal stabs and flaps for delams.
    Regards,
    Gus
    AW Extra 260/ZDZ Super 80; Elan/K-100; GJC Viperjet/K-80; YA F-15C/K-140

  8. #808
    wojtek's Avatar
    Join Date
    Dec 2001
    Location
    nj, NJ
    Posts
    4,068
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: C-ARF Ultra Flash build Thread + Video


    ORIGINAL: mtnflyer14

    +1 on the rib lines; not a problem. However, today I discovered that both elevators and the left flap have delamination forward of the hingeline. The delamination is more than 1/4 inch into the elevator forward of the hingeline on the elevators and the left flap delamination is extreme. I will get pics posted in the next couple days, but right now my UF is unflyable. My UF has 12 flights on it with a P-120 and I don't fly it hard. I recommend everyone check their horizontal stabs and flaps for delams.
    Regards,
    Gus

    thanks for the heads up .. would it be possibly for you to post some pics up of this ? I'm curious to where the weak area is and how we can reinforce this before problems can start .. I'll be on the lookout for this when i get my UF back from the painter ...

    ~V~
    www.facebook.com/allscale
    http://www.all-scale.com

    - working model MFD & HUD, 3D design & printing, CNC, Laser-cutting
    - Professional-Building
    - Metal-Morph Plating
    - CARF-Models Dealer

  9. #809

    Join Date
    Aug 2004
    Location
    tulsa, OK
    Posts
    770
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: C-ARF Ultra Flash build Thread + Video

    Had this happen on the flap on my Classic Flash about 75 flights in. Mine was from a gear up landing. Delamination was about 1 inch into the flap and went pretty much the full width. Worrying about the fix was lots more of a problem than the actual fix. Fix was to use some thin ZAP laminating resin to re-bond the skins. I put some vasoline in the hinge line to keep any stray resin out. Clamped with mild pressure and let set. CA would probably work fine also.

    That was 50 flights ago and I have seen no additional problems. Good luck with your repair.

  10. #810

    Join Date
    Jun 2002
    Location
    Watford, UNITED KINGDOM
    Posts
    7,464
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: C-ARF Ultra Flash build Thread + Video

    Gus

    How do you store/transport the model? Only time I've seen in is where the control horns rest on some thing. I transport with the tail on, usually in a van, I place foam under the fuselage chine to lift the tail up. On the wing I transport with them vertical and avoid them leaning on something with the horns. My original Flash (hundreds and hundreds of flights) has never shown a problem other on the tail where I lost a leg and ground the tip off one control horn. The elevator started to de lam later.

    Dave
    Motors & Rotors. JetCat, Powerbox, Intairco, Behotec, Graupner. CARF-models Rep. JR Propo for ever!, Jet 1A, MAP, Evojet, BVM

  11. #811
    mtnflyer14's Avatar
    Join Date
    Jan 2006
    Location
    Colorado Springs, CO
    Posts
    519
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: C-ARF Ultra Flash build Thread + Video

    Dave,
    My storage and transport are almost identical. The rear of the airframe is supported at the rear of the wing saddle, just under the P-120 and the front is supported just aft of the nosegear. There is no weight or pressure on the elevator control horns or flap horn.
    For all, I took some pics yesterday evening, don't know how well they came out yet, but if they are okay I will get them posted when I get home this evening.
    Regards,
    Gus
    AW Extra 260/ZDZ Super 80; Elan/K-100; GJC Viperjet/K-80; YA F-15C/K-140

  12. #812
    mtnflyer14's Avatar
    Join Date
    Jan 2006
    Location
    Colorado Springs, CO
    Posts
    519
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: C-ARF Ultra Flash build Thread + Video

    The three pictures are of the top of the horizontal stabs and elevators. I can't get to the wing right now, but the left flap is worse than the elevators. Not sure if that will show up in a picture. I will email these to Larry Tudor (C-ARF rep) also. So, I guess the consensus is to put thin, flexible CA into the delaminated area?
    Regards,
    Gus
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	Ge95105.jpg 
Views:	62 
Size:	60.1 KB 
ID:	1625798   Click image for larger version. 

Name:	Je10611.jpg 
Views:	43 
Size:	43.1 KB 
ID:	1625799   Click image for larger version. 

Name:	Rw59631.jpg 
Views:	49 
Size:	53.4 KB 
ID:	1625800  
    AW Extra 260/ZDZ Super 80; Elan/K-100; GJC Viperjet/K-80; YA F-15C/K-140

  13. #813

    Join Date
    Aug 2007
    Location
    Bay Area, CA
    Posts
    3,566
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: C-ARF Ultra Flash build Thread + Video

    I have about 50 flights on my UF and so far no delam problems. I will monitor my surfaces.
    Team Elite Aerosport

  14. #814

    Join Date
    Jun 2002
    Location
    Watford, UNITED KINGDOM
    Posts
    7,464
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: C-ARF Ultra Flash build Thread + Video

    Gus

    Looking at the pictures they are all classic signs of the surface being forced up, normally by the horn as they are in that area. I really cannot see this happing in flight, the design is the same as the classic Flash and there are way over a thousand flying, its also the hinge/foam method used on many other CARF models and it does not happen without the surface being lifted/shocked.
    It looks like the hinge has started to tear at the root? be careful if it has, once the material starts to tear it can develop.
    Personally I would use skinning epoxy like ZAP 40, thin CA is not a gap filler and if the foam has torn there is a lot of air to fill in on the bond.

    Dave
    Motors & Rotors. JetCat, Powerbox, Intairco, Behotec, Graupner. CARF-models Rep. JR Propo for ever!, Jet 1A, MAP, Evojet, BVM

  15. #815
    mtnflyer14's Avatar
    Join Date
    Jan 2006
    Location
    Colorado Springs, CO
    Posts
    519
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: C-ARF Ultra Flash build Thread + Video

    Dave,
    Thanks. Tonight I will closely inspect the bottom of the control horns to see if there is evidence that they were impacted from a hard landing (don't think so, but...) or show rub signs from transport. I did haul the UF in a trailer to Phoenix, AZ for Speedworld, which is over 800 miles. The airframe for that trip was sitting on a foam pad, so should have been okay. But, I will check tonight and let everyone know if there is something obvious.
    Regards,
    Gus
    AW Extra 260/ZDZ Super 80; Elan/K-100; GJC Viperjet/K-80; YA F-15C/K-140

  16. #816

    Join Date
    Jun 2002
    Location
    Watford, UNITED KINGDOM
    Posts
    7,464
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: C-ARF Ultra Flash build Thread + Video

    Did you have foam under the horns/Tail? even padded foam.

    Dave
    Motors & Rotors. JetCat, Powerbox, Intairco, Behotec, Graupner. CARF-models Rep. JR Propo for ever!, Jet 1A, MAP, Evojet, BVM

  17. #817
    mtnflyer14's Avatar
    Join Date
    Jan 2006
    Location
    Colorado Springs, CO
    Posts
    519
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: C-ARF Ultra Flash build Thread + Video

    The fuselage was sitting on about 2 inches of foam. So, whatever the lowest point of the aft part of the airframe (control horns or that little rib that extends down from the center bottom of the fuselage?) would have been sitting on the foam and supporting the airframe. In my SUV for to and from the field here in Colorado, the airframe is supported under the nose aft of the nose gear and under the airframe at the furthest aft part of the wing saddle.
    Regards,
    Gus
    AW Extra 260/ZDZ Super 80; Elan/K-100; GJC Viperjet/K-80; YA F-15C/K-140

  18. #818

    Join Date
    Jun 2002
    Location
    Watford, UNITED KINGDOM
    Posts
    7,464
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: C-ARF Ultra Flash build Thread + Video

    Gus

    If the foam went under the tail then it will rack side to side onto the horns. My foam stops short of the servo arms in the tailplane.

    regards

    Dave
    Motors & Rotors. JetCat, Powerbox, Intairco, Behotec, Graupner. CARF-models Rep. JR Propo for ever!, Jet 1A, MAP, Evojet, BVM

  19. #819
    mtnflyer14's Avatar
    Join Date
    Jan 2006
    Location
    Colorado Springs, CO
    Posts
    519
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: C-ARF Ultra Flash build Thread + Video

    Dave,
    Well, I don't think there is any doubt that the control horns would have been touching the foam on that trip. I'll also check for damage to the horns from contact with the runway or whatever. Thanks.
    You mentioned the ZAP finishing resin instead of CA. Would you recommend I thin the resin with alcohol to get it to go into the space between the foam and skin?
    Regards,
    Gus
    AW Extra 260/ZDZ Super 80; Elan/K-100; GJC Viperjet/K-80; YA F-15C/K-140

  20. #820

    Join Date
    Jun 2002
    Location
    Watford, UNITED KINGDOM
    Posts
    7,464
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: C-ARF Ultra Flash build Thread + Video

    Gus

    No, just warm it lightly with a heat gun just before you are ready to brush it in. You need a very small amount. If you thin it you will get too little adhesive to bond the surfaces.
    Grease the hinge line with a heavy silicon grease and hold the tail on edge as you brush it onto the open edge, keep closing it up, to check the quantity of epoxy as too much will go everywhere!

    Dave
    Motors & Rotors. JetCat, Powerbox, Intairco, Behotec, Graupner. CARF-models Rep. JR Propo for ever!, Jet 1A, MAP, Evojet, BVM

  21. #821
    AFTERBURNER1's Avatar
    Join Date
    Jun 2003
    Location
    Anaheim Hills, CA
    Posts
    4,354
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: C-ARF Ultra Flash build Thread + Video

    Wick thin CA into the affected area then follow up with medium (green) CA. Had to do it on my flaps and stab on my classic flash 3yrs ago. Hasn't been touched since.
    JETCAT USA

  22. #822
    mtnflyer14's Avatar
    Join Date
    Jan 2006
    Location
    Colorado Springs, CO
    Posts
    519
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: C-ARF Ultra Flash build Thread + Video

    Well, looks I have to eat this one. I checked the control horns and one of the two horns on each elevator had a flat spot. I had an ugly landing in Phoenix in April and suspect that the control horn impact and delamination happened at that time. Anyway, I'm pretty sure this is on me and not a problem in the construction of my airplane. I got the horizontal stab delams fixed this evening, will take on the flap tomorrow if I have time.
    Regards,
    Gus
    AW Extra 260/ZDZ Super 80; Elan/K-100; GJC Viperjet/K-80; YA F-15C/K-140

  23. #823

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

    RE: C-ARF Ultra Flash build Thread + Video

    hey albert just was seeing how you made out with your maiden of the ultra flash?

  24. #824
    gooseF22's Avatar
    Join Date
    Aug 2006
    Location
    Fort Wayne, IN
    Posts
    2,098
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: C-ARF Ultra Flash build Thread + Video

    Just did wt and bal of cf to UF conversion. Had to move turbine batt from nose to between intakes. Cg had to move an 1.5 inch from cf bal point.
    Goose
    Wren Turbines USA, Fromeco Avionics, JetiUSA Flight Team, www.Espritmodel.com www.demonaero.com

  25. #825
    wojtek's Avatar
    Join Date
    Dec 2001
    Location
    nj, NJ
    Posts
    4,068
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: C-ARF Ultra Flash build Thread + Video

    im stuck between stuffing a 36lbs Rhino in the flash, or saving it for a future project and using a P120 ... for those that have flown with 36lbs power ... how much more push is it really on this airframe ? ( pulling out of slow flight, verticals, etc ... , top speed is not an issue )


    ~V~
    www.facebook.com/allscale
    http://www.all-scale.com

    - working model MFD & HUD, 3D design & printing, CNC, Laser-cutting
    - Professional-Building
    - Metal-Morph Plating
    - CARF-Models Dealer


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 06:44 AM.

SEO by vBSEO 3.6.1 ©2011, Crawlability, Inc.