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C-ARF Ultra Flash build Thread + Video

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Old 11-03-2011, 05:57 AM
  #1126
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Default 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.

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Old 11-03-2011, 12:00 PM
  #1127
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Default 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
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Old 11-03-2011, 01:26 PM
  #1128
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Default RE: C-ARF Ultra Flash build Thread + Video

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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.
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Old 11-04-2011, 12:10 PM
  #1129
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Default RE: C-ARF Ultra Flash build Thread + Video


Quote:
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.



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Old 11-04-2011, 12:28 PM
  #1130
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Default 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.
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Old 11-04-2011, 12:42 PM
  #1131
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Default 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...
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Old 11-04-2011, 01:25 PM
  #1132
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Default 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
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Old 11-04-2011, 01:37 PM
  #1133
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Default 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.
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Old 11-04-2011, 03:49 PM
  #1134
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Default 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.
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Old 11-07-2011, 06:49 AM
  #1135
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Default RE: C-ARF Ultra Flash build Thread + Video

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




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Old 11-07-2011, 06:51 AM
  #1136
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Old 11-07-2011, 06:53 AM
  #1137
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Old 11-07-2011, 08:45 AM
  #1138
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Default RE: C-ARF Ultra Flash build Thread + Video


Quote:
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
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Old 11-07-2011, 08:58 AM
  #1139
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Default RE: C-ARF Ultra Flash build Thread + Video

Ali,

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


yiming
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Old 11-07-2011, 09:32 AM
  #1140
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Default 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.
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Old 11-07-2011, 09:36 AM
  #1141
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Default 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
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Old 11-07-2011, 10:18 AM
  #1142
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Default RE: C-ARF Ultra Flash build Thread + Video

Ali, What is the brand of the main struts on your flash?
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Old 11-07-2011, 11:47 AM
  #1143
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Default RE: C-ARF Ultra Flash build Thread + Video

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

Dw
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Old 11-07-2011, 12:05 PM
  #1144
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Default RE: C-ARF Ultra Flash build Thread + Video

some pics from Chalgrove Sunday 6 Nov
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Old 11-07-2011, 09:53 PM
  #1145
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Default RE: C-ARF Ultra Flash build Thread + Video

Thanks Ali.

Rob.
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Old 11-08-2011, 03:12 PM
  #1146
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Default 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
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Old 11-11-2011, 06:06 PM
  #1147
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Default 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.
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Old 11-11-2011, 07:29 PM
  #1148
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Default RE: C-ARF Ultra Flash build Thread + Video

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

TIA Rob.
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Old 11-11-2011, 08:41 PM
  #1149
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Default RE: C-ARF Ultra Flash build Thread + Video


Quote:
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
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Old 11-12-2011, 12:22 AM
  #1150
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Default RE: C-ARF Ultra Flash build Thread + Video

Quote:
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
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