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ESM T-28

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Old 03-10-2016, 11:04 AM
  #1401
helinut1
 
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After several flights I am having the same issue with landing gear . I got the nose gear fixed only to have the mains start to get loose and finally give way . After fixing came in for a good landing only to have one half of the wing fold from front to rear over the back . After looking at the construction found that there really is not any except balsa . I sent my good half of the wing to Eureka Foam Core wings and they designed me a three piece foam core with the correct wash out and center section. After 6 months of building I have finished the wing and am very impressed with the outcome . Have not flown it yet it is rain in California but am expecting good things from this . I will try and post some pictures later .
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Old 03-27-2016, 07:17 PM
  #1402
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Quote:
Originally Posted by Doomking View Post
Wow this thread still goes on....I would suggest if you have not done it yet to read this thread from page one where you will find many answer to your questions.....briefly with mine I added formers in the tail to stiffen the tails some,just two or three equally spaced.... I think there should be discussion on that in the early pages.
I use Sierra for retracts and they work great....bit pricey but it's the best in my opinion money can buy.
I would reinforce only the nose gear former for landing gear modifications.....the front former has a tendency to fracture if you land hard on your nose wheel like I did few times...the main gear mounts I left them stock and they work great...
I have Sierra's as well and have not maiden yet-I understand Sierra has closed up shop!
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Old 03-29-2016, 04:14 AM
  #1403
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Quote:
Originally Posted by PLANE JIM View Post
I have Sierra's as well and have not maiden yet-I understand Sierra has closed up shop!
I hope that's not true,they are top quality retracts.
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Old 03-31-2016, 04:44 PM
  #1404
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Hey helinut1, I like the idea of the foam wing, do you know if Eureka Foam Core Wings now have a template so others can order the three piece foam wing? Cheers, happy flying.
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Old 04-11-2016, 07:23 PM
  #1405
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Roy it took a while to get back to you sorry . yes I believe he does have a computer program that the dimensions are on and can reproduce them at will . The wing is slightly bigger and when he took apart the old wing I sent him we found it was built all wrong and did not have any wash out in the wing . Also the landing gear supports were there but not really tied to anything so they tour out easy . There is a lot to do with a foam core wing when you get it from him . there are no cut outs for servos , landing gear or wires . This all has to be done . I found by reading the internet there are easy ways to do this and when I tried them it was a snap . I think I could build the second one in about a week . I used Gorilla Glue on the entire wing and it worked great . I have not flown it yet as the weather has been wet but soon I will fly it and put an update on this site .
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Old 04-11-2016, 08:51 PM
  #1406
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GENTS,

Regarding SIERRA... Darrell is alive and well.... No he is not out of business....

He recently just finished (12) sets of ESM BF-109G 50cc size gear and tail struts for a Hollywood movie project for me....

More ESM T-28's arriving in a few months in both the YELLOW and also the RED/WHITE COLOR SCHEMES... I have lots of canopies and cowls on order as well...
Hope to get those before the container....

If anyone needs any sierra gear just email me direct at;

info @ vq warbirds.com (edit by removing spaces)


Cheers!

Tomas
info @ vq warbirds.com
www.vqwarbirds.com
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Old 04-12-2016, 12:34 AM
  #1407
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Thanks for that helinut1, I have never built a foam wing so will take your advice on reading up on the web before I take this step. If I do buy the foam core I may look for someone who is experienced at these wings and have them build it for me if it is worth it.
Thanks mate, happy flying.
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Old 04-12-2016, 12:40 AM
  #1408
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Hello Tomas, that is great news regarding the Red and White kits are being released again. Would I be able to order a main wing kit?
Also, I use the electric retracts available for these models but have retrofitted better motor/gearbox assemblies from Polou. I like the Sierras but not a fan of air operated, are they available, or able to be converted to electric motor drive or replace the air cylinder with a servo and rod assembly?
Cheers mate.
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Old 04-15-2016, 06:09 AM
  #1409
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Good to hear about Sierra
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Old 04-20-2016, 05:53 PM
  #1410
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Great news I went out and flew the T-28 with the foam wing that Eureka made me and it was great . Lots of lift very smooth and landings were more predictable and a great glide ratio to the ground . The gear is super strong and did not budge . I am very satisfied after all the work to build it up and fit this wing . Now comes some scale markings panel lines and rivets . After that I might tackle doors on the wing gear.
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Old 07-12-2016, 02:02 PM
  #1411
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Anybody know if the new kits offer any updates to address the known issues? I saw somewhere reference to "improved" and wondering what that might mean?

Cheers
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Old 07-13-2016, 05:49 AM
  #1412
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How are you guys balancing this model? Is the CG the 25-28% of total chord like my KMP t-28? I've read 3.5" from leading edge is the sweet spot, which is roughly 25%. Also, are you balancing with gear up or down? I have my KMP balanced at slight nose down, inverted, gear up. When the gear is extended, it is severe nose heavy.

Can I get some insight on this?? Thanks.
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Old 07-13-2016, 11:29 AM
  #1413
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Hey guys, interested in getting one of these planes setup with a modified ASP FS400 radial. Would anyone know if it will it fit in the cowl?

I see the Saito FG60R3 fits, but the ASP is slightly larger by ~5-10mm.
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Old 10-22-2016, 10:53 PM
  #1414
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Hello Fellow T-28 owners. I just recently purchased a T-28 from ESM and I have to say the kit is quite nice. But I did run into an issue. after inspecting everything It looked good. put it back in the box. three days later I got the fuselage back out and noticed that it was starting to split. The area that its splitting is on the rudder section at the bottom and working its way up to the top. After feeling around there are no formers or reinforcement in that area. It also looks as if they didn't use enough epoxy and maybe even sanded the area down way to much. I have contacted them on this and I hope they send a new fuselage. I am thinking that the repair is going to cost as much as new one. Here are a few pictures of what it looks like. I am afraid that the spit is going to continue all the way up to the top of the rudder section. what do you all think?
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Old 10-23-2016, 01:33 AM
  #1415
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I will be surprised if they send you a new one.
if they don't, you can cut out an inspection opening at the bottom near the tail end. You probably need an opening there anyway to add ballast to the rear in case the plane is nose heavy.
from that opening which should be big enough to insert your hand you can than flip the plane upside down, and after clamping the tails end from the outside, you can brush epoxy in the dorsal fin and maybe put some additional strips of fiberglass.
Also some of us build and installed formers in the rear of the fuselage to stiffen the body, since its pretty flimsy, so the opening can help yoy for that for the rear ones.
Hope you get your new fuse, otherwise you could try that fix.
Good luck.
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Old 10-23-2016, 10:38 AM
  #1416
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Quote:
Originally Posted by Doomking View Post
I will be surprised if they send you a new one.
if they don't, you can cut out an inspection opening at the bottom near the tail end. You probably need an opening there anyway to add ballast to the rear in case the plane is nose heavy.
from that opening which should be big enough to insert your hand you can than flip the plane upside down, and after clamping the tails end from the outside, you can brush epoxy in the dorsal fin and maybe put some additional strips of fiberglass.
Also some of us build and installed formers in the rear of the fuselage to stiffen the body, since its pretty flimsy, so the opening can help yoy for that for the rear ones.
Hope you get your new fuse, otherwise you could try that fix.
Good luck.

lol Yeah I was thinking the same thing. I hope I do get the new one. I mean I know this kit is cheap anyways but I would have thought that it wouldn't have this much happening. The only issue that I am afraid of is that the split will continue up to the top of the rudder section and that part I cant get to unless I split the whole back and fix that part then fix the area that I cut out to get to it. The other thing is I was testing the area of the split with some claps to see if I can get them to hold. That area is just soft enough for the clamps to slip off. I was going to put some reinforcements in the tail anyways so I am going to cut a hatch in the bottom as you stated and see what I can do. I think what it is, is that the area that is splitting looks as if they one didn't put enough epoxy in that area and two they sanded it down too thin in that area before painting.
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Old 10-30-2016, 08:32 AM
  #1417
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Maidened my ESM T28 on Saturday.
Video of it flying. Sorry about the poor quality of the video. Cheap camera.
I did not like the wire operated elevator arrangement, so I installed two Hitec 5245MG servos in the tail.
I also modified the tail plane attachment, so they can be removed for servo servicing.

https://www.youtube.com/watch?v=AZ5h0gODgbs

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Old 11-03-2016, 09:42 AM
  #1418
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Does anyone know what FS Color Codes did ESM use for the yellow and Silver on the fuse? I am working on fixing the rudder section were it started to split. I will need to apply some paint to some of the areas that will be fixed. Also what color of yellow was used on the MonoKoat? I am thinking its cub yellow but not sure. Any and all help would be great.
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Old 11-03-2016, 11:40 AM
  #1419
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Can someone please give the inside diameter of the cowl about 3" back from the front. Wanting to know if a Evo 777 will fit.
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Old 11-05-2016, 03:03 PM
  #1420
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Did some measuring of the cowl today; the inside diameter at 3inches from front is 230mm /9.055" sideways, it is a bit oval so bigger top and bottom. From firewall to front of prop.flange there is 164mm /6.46" . some rework for 34mm needed as the engine is 200mm long
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Old 11-05-2016, 03:59 PM
  #1421
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Quote:
Originally Posted by arneg View Post
Did some measuring of the cowl today; the inside diameter at 3inches from front is 230mm /9.055" sideways, it is a bit oval so bigger top and bottom. From firewall to front of prop.flange there is 164mm /6.46" . some rework for 34mm needed as the engine is 200mm long
Thank You, for taking the time to do that for me. I believe it will be a tight fit, but should work.. I will order one as soon as they are available State side.
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Old 11-13-2016, 03:39 AM
  #1422
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Helinut1

Regarding "kelio exhaust ring. The exhaust also has 3 outlets welded on each side to come out the scale outlets."

Did you modify the exhaust ring yourself or have it done ? I am wanting to do the same for my ESM T28.

Thanks
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Old 08-11-2017, 01:49 AM
  #1423
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Default ESM Trojan T-28 new designed

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Old 08-11-2017, 01:54 AM
  #1424
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Default ESM Trojan T-28 new Design

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a new design after long time for my ESM Trojan T-28

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Old 08-21-2017, 07:50 AM
  #1425
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Ok so I have a pica 1/5 scale t-28. Wing span is about 80" and fuselage is about 62" from the tip of the cowl to the end of the rudder. Will the Esm cockpit kit fit in my pica and I need a canopy also, so I need to know if it will fit also? I'm also going to need retracts and was looking at the Sierra retracts for my bird. Will these work on my t-28? Does anyone know where I could also get the gear doors for it? Thanks
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