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  1. #1126
    Stobe777's Avatar
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    RE: C-ARF Ultra Flash build Thread + Video

    I flew mine some more today on a somewhat really cloudy and dark day. It moves great, we radared with the Stalker 301 km/h and I really did not accelerate that long.
    Still a bit long landings in calm weather, the flaps need still a bit looking into. But all in all, a truly awesome model. And with the Hawk pipe its really quiet, about half the noise of a boomerang with any turbine.
    A stealth jet!

    TP.

    Flying an Avonds F-104. Aerial filming business with multirotors. Riding a Cannondale Caad8.

  2. #1127

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    RE: C-ARF Ultra Flash build Thread + Video

    how you guys think UF with e retract? electron e retract ER40 looks great from
    dreamwork! wonder they will and good fit on UF? I will then happy dun need to deal
    with thousand air line hair wire and the air pump for brakes only!


    yiming

  3. #1128
    KC36330's Avatar
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    RE: C-ARF Ultra Flash build Thread + Video

    ORIGINAL: SniperWj

    ...........I will then happy dun need to deal with thousand air line hair wire and the air pump for brakes only!
    electric retracts have 3 wires, (+ - ~), air retracts have 2 tubes (up/down) not thousands...........the Flash has a single valve that works both gear/brakes so one tank to fill..........i honestly don't see the hype for the electric retracts and when you're pumping up the brakes, just leave the pump on a few more seconds and you've got enough air for the gear.

  4. #1129
    Beavis's Avatar
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    RE: C-ARF Ultra Flash build Thread + Video


    electric retracts have 3 wires, (+ - ~), air retracts have 2 tubes (up/down) not thousands...........the Flash has a single valve that works both gear/brakes so one tank to fill..........i honestly don't see the hype for the electric retracts and when you're pumping up the brakes, just leave the pump on a few more seconds and you've got enough air for the gear.
    What about leaks? Having to replace tubes/connectors every now and then? Btw, the 3 electric wires in electric retracts are glued together - i.e. they are actually just one.

    Then there is the weight savings, more scale-like operation, programmable features, etc. Electric retracts are here to stay and will slowly but surely dominate.




  5. #1130
    KC36330's Avatar
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    RE: C-ARF Ultra Flash build Thread + Video

    i've got systems that are 10+ yrs old and no leaks, seldom do i ever have to change the tubing (i don't use the low quality from the start) you can even buy the air tubing that's 'glued' together if that's your big gripe. i highly doubt electrics will ever dominate, fact is air retracts are reliable, and cheap and have been working flawlessly for yrs, gonna take a lot more then programmable features to ever push air out of the ballgame.

  6. #1131
    Beavis's Avatar
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    RE: C-ARF Ultra Flash build Thread + Video


    I forgot valve and cylinder lubrication/maintenance

    Fact is, this type of reaction is typical when new (good) technology comes along. You can bet that electric retracts will dominate...

  7. #1132
    KC36330's Avatar
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    RE: C-ARF Ultra Flash build Thread + Video

    the only lube/maintenance i do is add a little silicone oil as i pump up the system one a year or so. i've got nothing against electric retracts but i won't be taking out a perfectly reliable system to change it and while there will be some that do, i honestly don't see it being a dominating way, if it does happen you're welcome to come back and say i told you so

  8. #1133
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    RE: C-ARF Ultra Flash build Thread + Video

    Certainly, air retracts will not disappear. And it may be a few years for electrics to become the preferred option in new installations. But I am among the many who believe that it's coming, for good reason.

  9. #1134

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    RE: C-ARF Ultra Flash build Thread + Video

    Dave, Dave, Dave!! You are really bad for my hobby dollars. First the CARF Tutor, as a result of your outstanding build thread and now, I just had to order an UltraFlash ( for P100 )

    Its a good thing you are on the other side of the world or I would be one of your best customers! I hope the CARF exec. see this and give you a commission! Its entertaining once in a while to see the " I am the worlds best pilot " on U tube do their thing. However, it's reps like you that go the extra mile for us mere mortals that really count. Once again, well done - your efforts have not gone unnoticed throughout the world wide jet community!

    Best Regards from Canada
    Dean W.
    R/C a lifestyle for the past 39 years

  10. #1135
    Ali's Avatar
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    RE: C-ARF Ultra Flash build Thread + Video

    I have just been sent some photos of my Ultra from earlier this year.




    Al's Hobbies, Horizon Hobby, Airworld, BVM, Jet Cat, Skymaster, FEJ, Rc Jet Centre,pull over, Tomahawk, C-ARF, Jet-Teng,Kingtech

  11. #1136
    Ali's Avatar
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    RE: C-ARF Ultra Flash build Thread + Video



    Al's Hobbies, Horizon Hobby, Airworld, BVM, Jet Cat, Skymaster, FEJ, Rc Jet Centre,pull over, Tomahawk, C-ARF, Jet-Teng,Kingtech

  12. #1137
    Ali's Avatar
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    RE: C-ARF Ultra Flash build Thread + Video

    Al's Hobbies, Horizon Hobby, Airworld, BVM, Jet Cat, Skymaster, FEJ, Rc Jet Centre,pull over, Tomahawk, C-ARF, Jet-Teng,Kingtech

  13. #1138

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    RE: C-ARF Ultra Flash build Thread + Video


    ORIGINAL: Helijet

    Dave, Dave, Dave!! You are really bad for my hobby dollars. First the CARF Tutor, as a result of your outstanding build thread and now, I just had to order an UltraFlash ( for P100 )

    Its a good thing you are on the other side of the world or I would be one of your best customers! I hope the CARF exec. see this and give you a commission! Its entertaining once in a while to see the '' I am the worlds best pilot '' on U tube do their thing. However, it's reps like you that go the extra mile for us mere mortals that really count. Once again, well done - your efforts have not gone unnoticed throughout the world wide jet community!

    Best Regards from Canada
    Dean W.

    Dean! Wow, thanks. I have a very good relationship with CARF, they are a great company, great products and they look after me just fine thanks.
    The P-100RX will be a great combo, I was flying my BVM BC Composite with the 100RX yesterday and it moves around really well and you can feel the lighter weight.

    Any help, just ask

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

  14. #1139

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    RE: C-ARF Ultra Flash build Thread + Video

    Ali,

    stop posting all those poison pictures! you are killing me!


    yiming

  15. #1140
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    RE: C-ARF Ultra Flash build Thread + Video

    Do you guys know what the current UK delivery time is, I'm thinking of ordering one.

    Cheers

    Rob.
    UK distributor: Jets Munt Merlin 90, 140 & 160. Jet Central UK. FADEC ECU\'\'\'\'s UK

  16. #1141
    Ali's Avatar
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    RE: C-ARF Ultra Flash build Thread + Video

    Depends on colour Rob. As of last week there were Green and one last Shui scheme left in the European warehouse. I got a green to a customer in 4 days of him confirming. Otherwise a new container is due in approx 2-3 weeks. Or you can always pay a bit extra and have one air shipped direct from Thailand. In which case I would say approx 7-10 days from time of order till delivery.
    Regards Al
    Al's Hobbies, Horizon Hobby, Airworld, BVM, Jet Cat, Skymaster, FEJ, Rc Jet Centre,pull over, Tomahawk, C-ARF, Jet-Teng,Kingtech

  17. #1142

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    RE: C-ARF Ultra Flash build Thread + Video

    Ali, What is the brand of the main struts on your flash?

  18. #1143

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    RE: C-ARF Ultra Flash build Thread + Video

    The struts Ali has are std AT units as supplied by CARF in their sets.

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

  19. #1144

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    RE: C-ARF Ultra Flash build Thread + Video

    some pics from Chalgrove Sunday 6 Nov
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    There is no spoon

  20. #1145
    Robrow's Avatar
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    RE: C-ARF Ultra Flash build Thread + Video

    Thanks Ali.

    Rob.
    UK distributor: Jets Munt Merlin 90, 140 & 160. Jet Central UK. FADEC ECU\'\'\'\'s UK

  21. #1146

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    RE: C-ARF Ultra Flash build Thread + Video

    Hi Guys

    In the next few days I will receive Upgrade Kit for my flash
    So I want to know How I take CG?
    I saw in post #189 Mr.Dave said
    (Balance point, gear up 220-225mm back from the wing/fuselage joint)
    But I'm confused
    Wing/fuselage joint 220-225mm back to the direction of landing gear?
    Am I correct?
    (gear up) Do you meant flying style?
    We always take the CG with landing gear Down
    Please clarify this also If there is any advice I will accept
    Best wishes for all
    Meshari

  22. #1147

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    RE: C-ARF Ultra Flash build Thread + Video

    Hi Meshari,

    I am setting mine at 230mm (from the wing joint). Main tanks empty and UAT full. Gear down.

    I think this is about what most other are doing.

    Regards,

    Paul.

  23. #1148
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    RE: C-ARF Ultra Flash build Thread + Video

    Can anyone give me the main/nose gear mounting dimensions?

    TIA Rob.
    UK distributor: Jets Munt Merlin 90, 140 & 160. Jet Central UK. FADEC ECU\'\'\'\'s UK

  24. #1149

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    RE: C-ARF Ultra Flash build Thread + Video


    ORIGINAL: paulhat

    Hi Meshari,

    I am setting mine at 230mm (from the wing joint). Main tanks empty and UAT full. Gear down.

    I think this is about what most other are doing.

    Regards,

    Paul.
    Paul,,
    Thanks for the clarification
    Meshari

  25. #1150

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    RE: C-ARF Ultra Flash build Thread + Video

    ORIGINAL: Robrow

    Can anyone give me the main/nose gear mounting dimensions?

    TIA Rob.
    Rob

    They are Behotec C-36 units...from memory nose leg is just over 140mm long, plus 70mm nose wheel

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


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