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T-28 True 1/5 Scale

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T-28 True 1/5 Scale

Old 10-10-2006, 07:27 PM
  #76  
HalH
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Default RE: T-28 True 1/5 Scale

COX is coming out with the Pica ARFs.
Old 10-10-2006, 10:08 PM
  #77  
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Default RE: T-28 True 1/5 Scale

i seen the add,it will be out about the middle of dec this year,i wanted some thing smaller than the one cox has,theirs is large i would have to put my US41 in it.ive got four large gas ones now,no room in the former rec room,now a hanger.
thanks for the info.
take care
Frank
Old 10-11-2006, 01:51 PM
  #78  
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Default RE: T-28 True 1/5 Scale

Yes it was COX model products.
Old 10-12-2006, 02:44 PM
  #79  
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Default RE: T-28 True 1/5 Scale

hallo Johnnyo,

to your door and servo questions

the cowl flaps has one location.(metal hinges).the spring hold the flap strong to the cowl.
I planned following servos.

aileron 2x graupner JR C 7451
flap 2x hitec hs-705MG
rudder 1x hitec hs 985 MG
elevator 2x hitec hs 985 MG
retract 1x graupner JR C 5077
wheel doors 2x graupner JR C 5008
gas 1x graupner JR 4021
nose wheel 1x hitec hs- 645MG
retract and door servos are connected to a door sequenzer.Photos of my trojan
see "best scale photo" site # 63

Gruß , Franz
Old 10-15-2006, 09:46 AM
  #80  
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Default RE: T-28 True 1/5 Scale

Franz, I think I asked you this question a year ago. Is your dummy radial an off the shelf item, or did you make it yourself? Same question regarding your prop hub. They are both quite nice. This is a beautiful T28.
I'll keep you posted.
JohnnyO
Old 10-18-2006, 02:13 PM
  #81  
navyt28
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Default RE: T-28 True 1/5 Scale


Hallo JohnnyO

the engine dummy is a custom made part with some adds of myself, like the wheel
for prop adjustment, the round chrome tube were the ignition cables were inside at
the original engine.
the prop hub was made by a friend of mine. It is an resign part and only to use for
static display. It was a lot of work to make a form (case).
If you want to have one of it ,I can ask for.
what color scheme do you voted to your trojan ? I hope to hear about news and wish
a safe maiden flight.

Franz
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Old 10-18-2006, 02:35 PM
  #82  
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Default RE: T-28 True 1/5 Scale

Franz, thanks. I would be interested in the prop hub if not too costly. If you could check with your friend, I would appreciate it. I will post pics of the aircraft this is modeled after. It is pretty plain, but great for competition.
Did the balance and weights on Sunday. To my amazment, flying weight with out paint is 36#, when balanced at 27% root cord, there was no weight needed anywhen, same with roll balance. So everything looks good for a maiden flight very soon.
thanks again
JohnnyO
Old 10-18-2006, 03:01 PM
  #83  
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Default RE: T-28 True 1/5 Scale

hallo ,YohnnyO

sorry !!! it is not a resign part but a resin part .
here a photo of a trojan of " Red Bull " Austria .I had the fun to fly with this plane.
I will contact my friend to ask for a good price for the hub.

Franz
Old 10-18-2006, 03:02 PM
  #84  
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Default RE: T-28 True 1/5 Scale

foto Trojan t-28
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Old 10-21-2006, 04:07 PM
  #85  
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Default RE: T-28 True 1/5 Scale

I thought I would post a couple of pics of the B model that this project is scaled after. Pretty simple scheem. Also a couple of pics of the model just about ready for flight. This was taken during the balancing phase.
Not long now.
JohnnyO
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Old 10-21-2006, 06:45 PM
  #86  
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Default RE: T-28 True 1/5 Scale

JohnnyO,
I'm glad to see Charlie wasn't taking a bite out of your Awesome T-28. My dog would hike his leg on my airplanes if he could get to them...that's why he's an OUTSIDE dog. LOL! I'm anxious for the maiden. Guys, I have seen a ton of beautiful aircraft produced in his humble garage, but this T-28 is by far JohnnyO's greatest work. He's a good friend and is always willing to offer advice or assistance. Good Luck.
Old 10-24-2006, 04:47 PM
  #87  
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Default RE: T-28 True 1/5 Scale

Wow It looks very nice.
Wish you all the luck in the world on your Maden Flight!
Old 11-10-2006, 10:52 PM
  #88  
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Default RE: T-28 True 1/5 Scale

Johnnyo~
Found this thread the other day while looking for T-28 info. Unless I missed it, do you have pricing yet on plans, cowling, etc?
Old 11-11-2006, 08:12 AM
  #89  
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Default RE: T-28 True 1/5 Scale

dudley, getting very close to the test flight. Getting the Cowl flaps working properly, then a through check over, and we're ready to go. Once the test flights are done we will set down, look for changes that need to be made, and go from there on the kit.
thanks for your interest.
johnnyO
Old 11-11-2006, 11:07 AM
  #90  
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Default RE: T-28 True 1/5 Scale

thank you. I look forward to hearing about your test flight. Good luck!
Old 11-11-2006, 03:23 PM
  #91  
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Default RE: T-28 True 1/5 Scale

Hello,

just received the two boxes from Iron Bay with the 1/5 scale T-28 Trojan. The parts are really looking good, although some cracks in the fuselage (from transport)

I must say I am a bit lost how to start building it up, particularly the wings and wing joiners; has anyone a good idea what to cover the foam with instead of balsa ? concerning the leading edge, is there a better way instead of sanding down a sqaure bar ?
any ideas of how to realize a sliding window; and does anyone have built a form for the exhaust area on the cowl ?

would be grateful for any hints in excess to the maual (particularly if someone has made phtos during building)

Peter
Old 11-11-2006, 05:23 PM
  #92  
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Default RE: T-28 True 1/5 Scale

Look up T-28 builds in the forum, My Trojan was done as a build article here on RCU. There is no better way to build the wings than as the kit recommends. Sheet the wings with balsa sheeting, then glass or monokote. The canopy would be very hard to make as a sliding canopy due to the fact this is the only way into the fuse to work on it. What is the problem with creating the leading edge from square stock? I do not know you, but it sounds like you may have bit off more than your experence can handle. The Byron-Iron-Bay kits are very easy to build compared to other wood kits like the Pica kit of same aircraft. You can order the 80" version through COX models as an ARF today. A friend of mine just ordered his. The T-28 is a great war bird, in that it looks good and is very easy to fly compared to the conventional gear war birds.
I am happy to hear that Iron-Bay is delivering kits again.
Gary
Old 11-14-2006, 05:37 PM
  #93  
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Default RE: T-28 True 1/5 Scale

Peter, great to see another T28 builder. Gary makes some good points. I'm not sure how the Iron Bay unit addresses the flap hinging, however if you review this forum, you'll see the scale hinges I designed for mine, they work extremely well and are very easy to set up. If you are interested, they are avalible, same goes for anyone needing a set. Also have installed on a 1/5 scale Devine Corsair with foam core wing, they are even easier to install on a foam core. I'll post pics of the Corsair install when we have both sides completed.
Alittle update on mine project, Trying to get the cowl flap mechanics worked out, flaps are hinged, due to opposed twin not much room for servos, maybe just set them up with a couple of open positions you can set on the ground?? The other issue is operation of the third nose gear door, the origional is tied to the nose gear strut and is mechanicaly opened and closed with the strut.
(Some very odd angles etc. to work out) may just work off the main doors to close and spring to open. We'll see. Should have these two issues worked out by the weekend. Then there is nothing left to do before the test flight other than a through going over.
We'll keep you all up to date.
Thanks for the interest
johnnyO
Old 11-14-2006, 07:42 PM
  #94  
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Default RE: T-28 True 1/5 Scale

There was a gorgeous 23% T-28 at Scale Masters. The detail work was to die for! Check out the wing rivets and wingtip attach screws in this photo:
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Old 11-14-2006, 07:44 PM
  #95  
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Default RE: T-28 True 1/5 Scale

I took a lot of detail shots because the scale is quite close to the 20% T-34C that I just started. Let me know if anyone wants to see other details.

David
Old 11-14-2006, 09:16 PM
  #96  
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Default RE: T-28 True 1/5 Scale

Johnnyo,

Cannot wait to see her all dressed and hear about the maiden.

good luck!!

M
Old 11-14-2006, 11:01 PM
  #97  
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Default RE: T-28 True 1/5 Scale

This is Bob Patton's T28, actually his second one from his own plans and molds. I know Bob very well, He is a heck of a nice guy and great designer / builder / flyer. I would like to see more shots of this one. Post or send personal email.
thanks
JohnnyO
Old 11-16-2006, 09:28 PM
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Default RE: T-28 True 1/5 Scale

Johnny:

Glad to provide them. Here are some landing gear shots:
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Old 11-16-2006, 09:34 PM
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Default RE: T-28 True 1/5 Scale

Here is some control surface detail, including a static wick:
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Old 11-16-2006, 09:41 PM
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Default RE: T-28 True 1/5 Scale

Now for the stencil work:
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