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CARF Ultra Flash Evo build thread +

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Old 04-18-2022, 03:21 AM
  #301  
scoeroo
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Mine after maiden day , 3 flights , 3 safe landings

U/F with 140XBL Merlin
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Old 04-19-2022, 04:58 AM
  #302  
BDK74
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Hi all. Having a bit of trouble holding knife edge. CG is forward but not by much. It’s comfortable. Any suggestions? Powered with a SW140 and a light build.

thanks!
Old 04-19-2022, 07:04 AM
  #303  
Dave Wilshere
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Sounds nose heavy, mine holds without full rudder and moderate speed…
Old 04-19-2022, 05:09 PM
  #304  
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Originally Posted by BDK74
Hi all. Having a bit of trouble holding knife edge. CG is forward but not by much. It’s comfortable. Any suggestions? Powered with a SW140 and a light build.

thanks!
Are you going fast enough?
Old 04-19-2022, 05:12 PM
  #305  
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It’s moving very fast. Full power passes out of a dive. I’ll keep moving CG back.
Old 04-20-2022, 12:44 AM
  #306  
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You would think that with that speed it wouldn't matter where the CG is.
I know is sounds kinda silly but are you putting enough rudder input in ? Rudder is one of those control where you might think you are giving it full deflection when in fact you are nowhere near it.
Old 05-01-2022, 08:54 PM
  #307  
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DW, I’m curious about your servo extension mounting technique with the electrical tape and CA. What happens when you have to remove it or replace one of the extensions? The tape stays stuck? Normally when electrical tape get old it just turns into a gooey mess, I’m assuming this holds up well? I envision using like a single drop of thick CA, is that what you use? I like it because its so clean looking and you can literally mount the extensions anywhere..

Also can someone post the shipping box dimensions? I want to know if I need to take the truck when I pick it up or if it will fit in my small SUV.

Thanks!

Last edited by camss69; 05-01-2022 at 08:59 PM.
Old 05-01-2022, 09:43 PM
  #308  
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I use at least two wraps of tape, the CA (Zap-20) only spots to the outer layer, if you have to remove and pull the lead away, only a ‘dot’ of tape stays on the surface. There is another layer underneath. To replace add a new dot of glue and it goes down exactly where it was before.
There are vastly differing qualities of insulation tape, the ones I buy from electrical contractors stay stuck for years. I’ve been using this technique for almost 20 years and the original models still hold firm. It’s neat and very light.
Use one drop of SLO Zap around 3/32 dia, if the surface is textured it needs a touch more to fill in the voids, if it’s a difficult area I sometimes spray the surface with a squirt of Kicker before adding the Zap to tape, it then takes instantly

Dave



Last edited by Dave Wilshere; 05-01-2022 at 09:48 PM.
Old 05-02-2022, 06:45 AM
  #309  
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Originally Posted by camss69
DW, I’m curious about your servo extension mounting technique with the electrical tape and CA. What happens when you have to remove it or replace one of the extensions? The tape stays stuck? Normally when electrical tape get old it just turns into a gooey mess, I’m assuming this holds up well? I envision using like a single drop of thick CA, is that what you use? I like it because its so clean looking and you can literally mount the extensions anywhere..

Also can someone post the shipping box dimensions? I want to know if I need to take the truck when I pick it up or if it will fit in my small SUV.

Thanks!
I am expecting a delivery of my Ultra Flash soon. Last delivery estimate was the end of April...
CARF has been delivering my models to Los Angeles with Old Dominion Freight lines. Why do you choose to pick yours up?
Old 05-02-2022, 06:54 AM
  #310  
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In talking to Ray he was saying that they have been picking some planes up from Long Beach and bringing them to the warehouse in Oakland. He said I could probably* pick it up from Oakland and save myself the cost of shipping. It’s only like an hour and 45 min drive for me.
Old 05-02-2022, 07:35 AM
  #311  
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Originally Posted by Dave Wilshere
I use at least two wraps of tape, the CA (Zap-20) only spots to the outer layer, if you have to remove and pull the lead away, only a ‘dot’ of tape stays on the surface. There is another layer underneath. To replace add a new dot of glue and it goes down exactly where it was before.
There are vastly differing qualities of insulation tape, the ones I buy from electrical contractors stay stuck for years. I’ve been using this technique for almost 20 years and the original models still hold firm. It’s neat and very light.
Use one drop of SLO Zap around 3/32 dia, if the surface is textured it needs a touch more to fill in the voids, if it’s a difficult area I sometimes spray the surface with a squirt of Kicker before adding the Zap to tape, it then takes instantly

Dave

Thank you for the reply Dave!

What material are you using for the engine mount bracket extensions and where do i get it?

Old 05-02-2022, 11:46 AM
  #312  
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Originally Posted by camss69
Thank you for the reply Dave!

What material are you using for the engine mount bracket extensions and where do i get it?
Not Dave…but that’s G10…epoxy Fiber board…I get that from McMaster…probably on Amazon as well
Old 05-02-2022, 11:52 AM
  #313  
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Originally Posted by Dansy
Not Dave…but that’s G10…epoxy Fiber board…I get that from McMaster…probably on Amazon as well
Thanks Dansy, what thickness do you typically use? I can get from McMaster.
Old 05-02-2022, 12:25 PM
  #314  
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I keep in my shop 0.2, 0.4, 0.8, 1.0, 1.6, 2.0, 2.3mm glass board.
i think the Evo is using 1.0mm mainly because that was the right packer to centre the turbine
Old 05-03-2022, 04:06 AM
  #315  
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Originally Posted by camss69
Thanks Dansy, what thickness do you typically use? I can get from McMaster.
as well I have different thickness, in my shop…..up Ľ” (don’t use the thick one often, but sometimes…it’s useful to have.
Old 05-20-2022, 12:34 PM
  #316  
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Hey Dave,

Which Mcgregor servos do you recommend for the EVO???
Old 05-20-2022, 12:56 PM
  #317  
Dave Wilshere
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6928 Brushless.
Overkill but a good price, so suits the purpose.

Dave
Old 05-20-2022, 12:58 PM
  #318  
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Thank you sir!!!
Old 05-22-2022, 05:44 PM
  #319  
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Reading through this thread, and saw 737’s tank problem, so I checked mine. My vent is on the bottom but the line going up is completely up against the top of the tank. Is this going to be effective??? Pictures a little tough but you get the idea.


Old 05-22-2022, 08:45 PM
  #320  
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It looks to me they have cut a V on the top which is perfect

Dave
Old 05-23-2022, 02:24 AM
  #321  
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After sticking a better light in the tank, you are right! They did cut a V. Thank you.
Old 06-01-2022, 05:44 AM
  #322  
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Hi,
How does one align the place to cut the slot in the rudder for the servo arm?
Thanks
Old 06-01-2022, 06:11 AM
  #323  
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Originally Posted by jvaliensi
Hi,
How does one align the place to cut the slot in the rudder for the servo arm?
Thanks
I do that by measuring……twice and cutting once
Old 06-01-2022, 07:05 AM
  #324  
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Originally Posted by jvaliensi
Hi,
How does one align the place to cut the slot in the rudder for the servo arm?
Thanks
Dave shows how to do that in this thread… post 59.

Maybe try reading through the thread?

CARF Ultra Flash Evo build thread +
Old 06-01-2022, 07:33 AM
  #325  
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Originally Posted by camss69
Dave shows how to do that in this thread… post 59.

Maybe try reading through the thread?

CARF Ultra Flash Evo build thread +
I saw that and wondered if there were other methods.
Thank you-


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