Notices
RC Warbirds and Warplanes Discuss rc warbirds and warplanes in this forum.

KMP T-28C

Old 09-14-2010, 09:24 PM
  #1  
VF84sluggo
Thread Starter
My Feedback: (55)
 
VF84sluggo's Avatar
 
Join Date: Nov 2007
Location: Gulf Breeze, FL
Posts: 2,367
Likes: 0
Received 1 Like on 1 Post
Default KMP T-28C

Anyone building one of [link=http://www.kmp.ca/product_info.php?cPath=22&products_id=238]these[/link]? I've been wanting a big T-28, and this looks like a good one. Wondering if anyone here has first-hand experience with it.

Old 10-21-2010, 02:15 PM
  #2  
TangoPapa
Member
My Feedback: (1)
 
TangoPapa's Avatar
 
Join Date: Sep 2010
Location: Jax, FL
Posts: 36
Likes: 0
Received 0 Likes on 0 Posts
Default RE: KMP T-28C

I have one still in the box, but will start working on it soon. From my initial inspection it looks to be a nice model.
Old 10-21-2010, 08:47 PM
  #3  
VF84sluggo
Thread Starter
My Feedback: (55)
 
VF84sluggo's Avatar
 
Join Date: Nov 2007
Location: Gulf Breeze, FL
Posts: 2,367
Likes: 0
Received 1 Like on 1 Post
Default RE: KMP T-28C

Good to hear. I want one bad. Been looking for a good 50cc size T-28, and this one sure looks nice.
Old 10-25-2010, 08:12 AM
  #4  
TangoPapa
Member
My Feedback: (1)
 
TangoPapa's Avatar
 
Join Date: Sep 2010
Location: Jax, FL
Posts: 36
Likes: 0
Received 0 Likes on 0 Posts
Default RE: KMP T-28C

Finally got the model out of the box and looked it over, nice model. I mounted my DLE 55 to see how it will fit in the cowl, the cylinder fits but the spark plug does not. I need to lengthen the standoffs by 20mm to get the prop flange out past the cowl ring. I want to put a Jtec pitts style exhaust on but might need to make a small modification to get it to fit. Can't do much more right now, waiting for the gear to arrive from KMP.
Attached Thumbnails Click image for larger version

Name:	Db85550.jpg
Views:	88
Size:	58.4 KB
ID:	1522872  
Old 10-25-2010, 08:17 AM
  #5  
pacoflyer
My Feedback: (23)
 
Join Date: Jan 2002
Location: east amherst , NY
Posts: 674
Received 4 Likes on 3 Posts
Default RE: KMP T-28C

TP,
Great looking model and I'll be interested in hearing how it goes together. I'd like to somehow find out if you could get a radial to fit but your DLE55 is also good choice.
Good luck with it
paul
Old 10-25-2010, 08:31 AM
  #6  
VF84sluggo
Thread Starter
My Feedback: (55)
 
VF84sluggo's Avatar
 
Join Date: Nov 2007
Location: Gulf Breeze, FL
Posts: 2,367
Likes: 0
Received 1 Like on 1 Post
Default RE: KMP T-28C

A radial would be sharp! I would think with a T-28 this big the diameter of the cowling would allow for a radial to fit.
Old 10-25-2010, 08:36 AM
  #7  
TangoPapa
Member
My Feedback: (1)
 
TangoPapa's Avatar
 
Join Date: Sep 2010
Location: Jax, FL
Posts: 36
Likes: 0
Received 0 Likes on 0 Posts
Default RE: KMP T-28C

There is a ton of room. also the cowl parts from the fuselage just forward of the scale looking exhaust exits so a nice scale exhaust could be installed as well.
Old 10-25-2010, 08:38 AM
  #8  
pacoflyer
My Feedback: (23)
 
Join Date: Jan 2002
Location: east amherst , NY
Posts: 674
Received 4 Likes on 3 Posts
Default RE: KMP T-28C

TP,
When you get a chance, get us some inside dimensions of the cowl including distance to the firewall.

Thanks,
paul
Old 10-25-2010, 11:14 PM
  #9  
carlosemiliov
Senior Member
My Feedback: (1)
 
carlosemiliov's Avatar
 
Join Date: Jun 2009
Location: hialeah, FL
Posts: 104
Likes: 0
Received 0 Likes on 0 Posts
Default RE: KMP T-28C

hello there you guys, i just placed my order for these beauty lets see what engine can we place in it, can you help me up please?
Old 11-03-2010, 10:18 AM
  #10  
AKondor
 
Join Date: Oct 2002
Location: Thunder Bay, ON,
Posts: 457
Likes: 0
Received 0 Likes on 0 Posts
Default RE: KMP T-28C

HI Guys: I am working on some replacement switch hatch doors. I would like to offer something that looks a nicer than what the factory offered. I feel as though the rough finish is not to the high standards that KMP is known for. As a result I am pushing for some replacement doors and will make them available at no charge. We are hoping that a nice smooth resin door hatch will be available soon.
Old 11-03-2010, 02:48 PM
  #11  
tailskid
My Feedback: (34)
 
tailskid's Avatar
 
Join Date: Nov 2001
Location: Tolleson, AZ
Posts: 9,552
Received 7 Likes on 7 Posts
Default RE: KMP T-28C

That's good news!
Old 11-07-2010, 10:19 PM
  #12  
TangoPapa
Member
My Feedback: (1)
 
TangoPapa's Avatar
 
Join Date: Sep 2010
Location: Jax, FL
Posts: 36
Likes: 0
Received 0 Likes on 0 Posts
Default RE: KMP T-28C

I have the DLE 55 mounted and the standoffsadjustedso the prop flange is 1/2" forward of the cowl, and hooked up the throttle and choke servos. I had to move both the servos to one side to accommodate the DLE linkage set up. The air tank is very large and takes up quite a lot of room so i made holders that tuck the tank to one side and glued them in place. As you can see there is plenty of room for all the equipment that is needed to operate this beast.
Old 11-23-2010, 11:59 PM
  #13  
Magnum RC
Senior Member
 
Magnum RC's Avatar
 
Join Date: Mar 2010
Location: Eugene, OR
Posts: 269
Likes: 0
Received 0 Likes on 0 Posts
Default RE: KMP T-28C

Wow, this aircraft takes the cake.  Painted Solartex wing,  Hidden switch panels,  I have a friend who is targeting scalemaster competition with his.  He is having Keleo Creations install a Saito 450 with a scale exhaust ring.  Won't that be something to see roar down the runway. 
Old 11-24-2010, 11:36 PM
  #14  
TangoPapa
Member
My Feedback: (1)
 
TangoPapa's Avatar
 
Join Date: Sep 2010
Location: Jax, FL
Posts: 36
Likes: 0
Received 0 Likes on 0 Posts
Default RE: KMP T-28C

I've been working on new gear doors for my T-28. The first picture shows what the original gear well looks like and then a few pictures showing the new doors and how they look open and closed.
Attached Thumbnails Click image for larger version

Name:	pn37763.jpg
Views:	133
Size:	75.6 KB
ID:	1528087  
Old 11-25-2010, 08:26 AM
  #15  
VF84sluggo
Thread Starter
My Feedback: (55)
 
VF84sluggo's Avatar
 
Join Date: Nov 2007
Location: Gulf Breeze, FL
Posts: 2,367
Likes: 0
Received 1 Like on 1 Post
Default RE: KMP T-28C

Wow, great work guys! I am soooo glad y'all are keeping us posted with your progress. I absolutely have the this plane on my 'wish list', but will have to sell a couple of planes first...which is the hard part, 'cause I don't want to part with any of them.

Tango - I like the full gear doors! I see you have a fixed main wheel door, and the hinged strut door. I see how you are controlling the main strut door (just like the scale bird, nice.) How are you planning on controlling the inner door that covers the lower half of the wheel when retracted? On the scale T-28, that door was spring-held open. It had "U" shaped bar on it that contacted a roller on the main gear strut as the gear retracted, the door eseentially being 'pulled' closed behind the main gear as it tucked up into the well. In fact, on preflight we'd check that inner door by pushing on that 'u' bar to close the door, and making sure there was spring tension on it.
Old 11-25-2010, 12:29 PM
  #16  
TangoPapa
Member
My Feedback: (1)
 
TangoPapa's Avatar
 
Join Date: Sep 2010
Location: Jax, FL
Posts: 36
Likes: 0
Received 0 Likes on 0 Posts
Default RE: KMP T-28C

Pneumatics, I plan on using a pneumatic actuator operated by an air switch so when the gear is fully retracted it triggers the switch and closes the inboard door. And in reverse when opening the doors air will take the path of least resistance and open the door and then the gear will follow. It works in theory, but I still need to work out the details next. Pictures will be posted soon. The nose gear will also be fully inclosed and will be operated by pneumatics as well.
Old 01-11-2011, 08:03 AM
  #17  
SAM-RCU
Member
My Feedback: (1)
 
Join Date: Jan 2002
Location: Kalamazoo, MI
Posts: 42
Likes: 0
Received 0 Likes on 0 Posts
Default RE: KMP T-28C

Anymore progress on the T28 ? How do you think the DL55 is going to work out
Old 01-16-2011, 03:36 AM
  #18  
Daniel-EL
My Feedback: (9)
 
Daniel-EL's Avatar
 
Join Date: Mar 2005
Location: Maumee, OH
Posts: 359
Likes: 0
Received 1 Like on 1 Post
Default RE: KMP T-28C


ORIGINAL: Magnum RC

Wow, this aircraft takes the cake. Painted Solartex wing, Hidden switch panels, I have a friend who is targeting scalemaster competition with his. He is having Keleo Creations install a Saito 450 with a scale exhaust ring. Won't that be something to see roar down the runway.

Can you give us an update on that Saito 450 installation? I'm wondering if the T-28 cowl diameter is large enough to accommodate that engine which is 9.25" in diameter. I'd like to install an OS FR-300 which is slightly smaller than the Saito at 9.21" diameter. I have an exhaust ring for it which could be made to exit the scale location with little trouble.
Old 01-16-2011, 08:52 AM
  #19  
Magnum RC
Senior Member
 
Magnum RC's Avatar
 
Join Date: Mar 2010
Location: Eugene, OR
Posts: 269
Likes: 0
Received 0 Likes on 0 Posts
Default RE: KMP T-28C

The Saito is a tight fit. KMP had one on display at the Northwest Model Exposition in Washington State. It did fit. The exhaust ring is another story. All I know is Kelvin at Keleo is custom fitting one to a T-28 now. He may have a new ring out for the custom install, The 450 plus the ring was not a shoe in because of the engine box. The 450 without the ring fit fine.
Old 01-17-2011, 09:45 PM
  #20  
TangoPapa
Member
My Feedback: (1)
 
TangoPapa's Avatar
 
Join Date: Sep 2010
Location: Jax, FL
Posts: 36
Likes: 0
Received 0 Likes on 0 Posts
Default RE: KMP T-28C

Progress has been slow with everything else that is going on, but I did get the nose gear doors made and worked out the pneumatics. All the gear doors are made from glassed balsa, three layers of 6 oz. on the exterior and two layers of 3/4 oz. on the interior. I used micro piano hinges for a more scale look. The door action is controlled by an air switch on the gear retract servo. Originally I was going to have the air switch be triggered by one of the gear legs but this method is much simpler and more reliable. The magic is in my JR 12X, I slow the servo down to a 2 second interval, giving the gear enough time to fully retract before the doors close. Works great. I started to put the tail feathers on and ran into a small problem, the holes for the rudder are 1/4" to low as seen in the photos. I will need to fill the holes, make a jig, and re-drill in the correct location. When I purchased the kit from KMP the rudder had been package before the clear coat was completely dry and had imprints from the packaging. As you can see, Gus from KMP did a great job at repairing the finish and it looks great. That is all I have for now, the main gear and engine final assembly will be next.
Attached Thumbnails Click image for larger version

Name:	Ur52038.jpg
Views:	91
Size:	98.3 KB
ID:	1549620   Click image for larger version

Name:	Ez83492.jpg
Views:	103
Size:	101.1 KB
ID:	1549621   Click image for larger version

Name:	Ze84936.jpg
Views:	80
Size:	114.3 KB
ID:	1549622   Click image for larger version

Name:	Vt57530.jpg
Views:	85
Size:	101.5 KB
ID:	1549623   Click image for larger version

Name:	Dz80703.jpg
Views:	98
Size:	106.4 KB
ID:	1549624   Click image for larger version

Name:	Jo31620.jpg
Views:	100
Size:	100.8 KB
ID:	1549625   Click image for larger version

Name:	Rp43157.jpg
Views:	87
Size:	85.1 KB
ID:	1549626   Click image for larger version

Name:	Hc94373.jpg
Views:	96
Size:	84.8 KB
ID:	1549627  

Click image for larger version

Name:	Uz67774.jpg
Views:	79
Size:	99.3 KB
ID:	1549628   Click image for larger version

Name:	Wu59475.jpg
Views:	81
Size:	113.3 KB
ID:	1549629   Click image for larger version

Name:	Ez81857.jpg
Views:	85
Size:	75.1 KB
ID:	1549630   Click image for larger version

Name:	Bg91845.jpg
Views:	76
Size:	105.7 KB
ID:	1549631  
Old 01-18-2011, 08:21 PM
  #21  
Daniel-EL
My Feedback: (9)
 
Daniel-EL's Avatar
 
Join Date: Mar 2005
Location: Maumee, OH
Posts: 359
Likes: 0
Received 1 Like on 1 Post
Default RE: KMP T-28C

Nice landing gear, but where did you get it? I can't find it on the Robart site and it looks like it has been deleted in other sites that sell Robart gear. I have a T-28 on order, but I'm getting a little worried that there might not be any landing gear available for it.[] Inquiries about this to KMP have gone unanswered.
Old 01-19-2011, 06:45 AM
  #22  
TangoPapa
Member
My Feedback: (1)
 
TangoPapa's Avatar
 
Join Date: Sep 2010
Location: Jax, FL
Posts: 36
Likes: 0
Received 0 Likes on 0 Posts
Default RE: KMP T-28C

I received the gear from KMP, however it does not fit. I am still waiting for the correct gear to arrive. As a result of installing the gear doors I was able to use the main gear as is. They were 3/8" to short but I moved the actuators inward that 3/8" to accommodate the doors, so I was able to use them. I also had to modify the wing where the retract actuator attaches so that when the gear is up and locked the doors are flush. As for the nose it is still to short and the offset for the wheel is to small. (If you look closely at the picture in my previous post you can see that the tire is smashed against the bottom of the strut near the torque link.) I made a block that lowers the actuator and tilts it back 8 degrees so when the gear retracts it it retracts fully into the fuselage and clears the doors. The actuator is a 115 degree actuator less the 8 degrees of aft tilt that i built into my blocking the nose gear has 7 degrees of forward rack which is just right for this airframe.  Needless to say this is still an ARF but I have done a lot of work to it to get it airworthy. The only way I was able to use the gear was because of the modifications I have done, this gear would not have fit into the stock airframe. So far I have been told twice by  KMP  "next week" for the replacement gear parts. To me, this is a minor set back, and I will have it worked out soon enough.
Old 01-19-2011, 10:53 AM
  #23  
Daniel-EL
My Feedback: (9)
 
Daniel-EL's Avatar
 
Join Date: Mar 2005
Location: Maumee, OH
Posts: 359
Likes: 0
Received 1 Like on 1 Post
Default RE: KMP T-28C

Thanks, TangoPapa. I talked with Gus today at KMP and he told me about the gear...it must be ordered through them if you want the Robarts since Robart doesn't list it in their catalog. So.....after about a grand, I've got myself a T-28 with retracts. I got the primered version since that's all they had left. I want it that way anyway to make it a little unique from the others. Here's the engine I want to install with exhaust header installed. I think it'll fit.


Attached Thumbnails Click image for larger version

Name:	Yw67584.jpg
Views:	57
Size:	147.6 KB
ID:	1550097   Click image for larger version

Name:	Lg15651.jpg
Views:	59
Size:	137.4 KB
ID:	1550098  
Old 01-20-2011, 06:07 PM
  #24  
cloud_master
 
Join Date: Sep 2009
Location: SunPrairie, WI
Posts: 129
Likes: 0
Received 0 Likes on 0 Posts
Default RE: KMP T-28C



Can anyone comment on how a Zenoah G-45 would work with this aircraft? I have a spare that i'm looking to use.

Old 05-30-2011, 09:32 PM
  #25  
laminar13
My Feedback: (11)
 
Join Date: Mar 2005
Location: El Cerrito, CA
Posts: 2
Likes: 0
Received 0 Likes on 0 Posts
Default RE: KMP T-28C

How's it going with the T-28? Has anyone flown yet? I'm also interested in flying this aircraft with a radial. I wonder if you might be willing to measure the cowl diameter where the cylinders would be, about 4 inches back from the prop hub. I'm thinking that the O.S. 420 7-cylinder with a three blade prop might be nice.

kwm

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.