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Top Flite B-25 ARF (Tecnical, tips, suggestions)

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Top Flite B-25 ARF (Tecnical, tips, suggestions)

Old 11-10-2014, 03:13 PM
  #3176  
Speedracer2112
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Originally Posted by rzingsheim View Post
Does anyone have an unused engine cowl, fake radial engine insert (black), and decal sheet for the Top Flite B25? Happy to pay a fair price for any or all pieces. I just picked up a B25 from a club member that started it but didn't finish it. He lost those parts. As far as I can see they are not available from Top Flite or Tower Hobbies. Post here how to contact you or call me at 920-921-5419
Thanks,
Roy

I got you covered. I have a few cowls and dummies. No decals though. If you make your own you would be happier anyway.

It will take a few days for me to get back to you.

Speed
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Old 11-11-2014, 07:32 AM
  #3177  
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Thanks Speed!
Just let me know when you can regarding the cowl and dummy engine. I have e-mailed Cali-graphics regarding the decals so I can probably take care of that part.
Roy
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Old 11-26-2014, 06:03 PM
  #3178  
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Still looking for a Top Flite B25 cowl and dummy engine that have not been cut for a muffler and in good condition.. If anyone has one or both of these (especially the cowl) I am interested. Willing to pay a fair price.
Thanks,
Roy
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Old 11-27-2014, 10:33 PM
  #3179  
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Got some dummy engines. Hit me with a PM.

--john
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Old 12-05-2014, 04:39 PM
  #3180  
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Hi Speed and John. I have sent you both PM's and not heard back. Perhaps I'm doing something wrong? If you see this and you have a Top Flite B25 cowl and/or dummy engine please let me know. Please let me know either way. If anybody else has what I'm looking for I'm willing to pay a fair price. Again my e-mail is rzingsheim@charter.net
Thanks,
Roy
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Old 12-16-2014, 03:54 AM
  #3181  
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Email sent. Sorry, I forgot you and it looks like PMs are not working.

Speed
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Old 01-01-2015, 12:38 PM
  #3182  
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Hi guys,

I am searching for a nose windshield for the B-25.. I hope somebody got one laying around. If so please sent me a pm or email!

Best regards from the Netherlands,

Merlin
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Old 01-19-2015, 04:22 PM
  #3183  
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I have Robart air retracts on my Top Flite B-25.

My question is how do u hook up your air compressor to the Robart fille valve? The compressor has a female fitting that fits a tire valve. The Robart fitting has a male fitting of its own with no adapter. How do u make this set up work pl.

Your input would be appreciated.
Thanks
Rafeek



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Old 01-20-2015, 07:26 AM
  #3184  
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Rafeeki, The way you fill up your air retract is you need to have another robart fill valve and fill chuck connected together with a piece of air line tubing. Then you put the fill valve, which has same dimensions a tire valve into the air pump. Then screw the fill chuck in to the fill valve on your plane and turn on the compressor until the desired pressure is achieved. Good luck. You will need robart part number #168 Fill Valve & Fill Chuck kit. Connect both of these parts together with a piece of air line tubing. Good luck.
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Old 01-20-2015, 07:52 PM
  #3185  
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Thanks for your feedback Zoomer.
Here is what I have discovered though.
The line from the compressor that fits a car tire and Robart's fill valve have different threads....... go figure. So I will, like u said use the two and pump air through a needle (used to fill a ball) with the use of a narrow tubing.
They can make this much easier if the provided fittings with matching threads. My 10c.
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Old 01-20-2015, 08:21 PM
  #3186  
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My air compressor has a quick release lever not a screw on type and it works fine. I have seen people use the sport ball needle. it works just as well too. Sure beats that old robart hand pump I used to use.
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Old 02-03-2015, 08:27 AM
  #3187  
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Here is a question for ROBART.

WHY DONT THE TWO ADJUSTMENT SCREWS ON THE VARIABLE AIR VALVE/REGULATOR HAVE SLOTS IN THEIR HEAD LIKE SCREWS???? That would certainly make adjusting them easier.
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Old 02-03-2015, 02:10 PM
  #3188  
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Sounds like a good idea. How about making your own slots with a dremel cutoff wheel. Thanks for the thought, I think I will try it.
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Old 02-03-2015, 02:56 PM
  #3189  
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I did. Just wondering if the guys at Robart use the products they design?
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Old 02-03-2015, 04:44 PM
  #3190  
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Originally Posted by rafeeki View Post
I did. Just wondering if the guys at Robart use the products they design?
I've often asked myself that question. Their HD mechanical retracts are ok, but I wouldn't give a dime for the rest of the product line. When I chose a giant scale WWII fighter to build,
one of the qualifying questions was: "Does Sierra Giant make landing gear for this?"
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Old 02-03-2015, 08:25 PM
  #3191  
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Default Robart air system

As I am new to air retracts thought I would ask this simple question before I tear the system apart to locate an air leak.

I have aTop Flite B-25 that I purchased on line. However I have taken most of the components apart and started reassembling it to insure it meets "my specs". So upon pressurizing the system to 100lbs the system holds the pressure for about 2 hrs or less. Is that normal or is something leaking? Is it normal to have to pressurize the system after each flight?

Thanks

Rafeek
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Old 02-04-2015, 05:31 AM
  #3192  
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It's leaking. The Sierra Giant retracts in my P-39 hold air indefinitely.
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Old 02-04-2015, 08:06 AM
  #3193  
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At one time your could get Sierra air cylinders to retro fit Robarts gear. Robart cylinders leak, some are better than others.
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Old 02-10-2015, 08:07 AM
  #3194  
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Found the air fill valve leaking slightly. Replaced the inside core (from Auto Zone) and tightened it like crazy.
Checked the plastic T-fittings, few were leaking. Ordered the brass fittings to replace them.
Does anyone use a sealant on the fittings? Robart is silent on that.

Thanks

Rafeek
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Old 02-10-2015, 10:44 AM
  #3195  
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While going through my B-25 to insure the assembly was properly done I discovered that:-

The engine fire walls are not in the same plane. Each is facing away from the fuselage and the left firewall faces more away from the fuselage. Is this correct?

Thanks

Rafeek
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Old 02-10-2015, 10:46 AM
  #3196  
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Yes, Top Flite used out thrust to make the aircraft easier to handle in the event of an engine failure. I would not use sealant on any of the air components- it will be carried into the retract valve when air exhausts from the cylinders. I used a mixture of soap and water to find air leaks in my systems.
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Old 02-10-2015, 06:50 PM
  #3197  
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Originally Posted by Mustang Fever View Post
Yes, Top Flite used out thrust to make the aircraft easier to handle in the event of an engine failure. I would not use sealant on any of the air components- it will be carried into the retract valve when air exhausts from the cylinders. I used a mixture of soap and water to find air leaks in my systems.
+1
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Old 02-10-2015, 07:56 PM
  #3198  
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Speed, do u still have engine cowls for the Top Flite B-25? If yes I would like to have 2 . You can email me at rjbesheer@aol.com

Thanks

Rafeek
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Old 03-05-2015, 03:45 PM
  #3199  
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hobbyfever.com has some original parts but no engine cowls for the Top Flite B-25.

Last edited by rafeeki; 03-07-2015 at 01:27 PM.
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Old 03-26-2015, 09:37 AM
  #3200  
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I need to re-paint my cowls. Couldnt find paint numbers in the manual but the numbers for the Monocoat covering only.
I tried 3 spray cans of Model Master to match the green got close but not perfect...grrrrrrr...

Does anyone have matching numbers for paint???

Thanks

Rafeek
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