Go Back  RCU Forums > RC Airplanes > RC Jets
 Tam A4 Build >

Tam A4 Build

Community
Search
Notices
RC Jets Discuss RC jets in this forum plus rc turbines and ducted fan power systems

Tam A4 Build

Thread Tools
 
Search this Thread
 
Old 10-23-2007 | 01:15 AM
  #26  
Stig Andersen's Avatar
Senior Member
 
Joined: Feb 2003
Posts: 1,277
Likes: 0
Received 0 Likes on 0 Posts
From: Nordborg, DENMARK
Default RE: Tam A4 Build

Tam.

That is a fantastic looking Scooter. Great job.

I was looking to work on the fuel tanks tonight. I am going to glue them with some clear silicon, or is there a better way???
Old 10-23-2007 | 01:50 AM
  #27  
My Feedback: (2)
 
Joined: Dec 2001
Posts: 4,586
Likes: 0
Received 1 Like on 1 Post
From:
Default RE: Tam A4 Build


ORIGINAL: Stig Andersen

Tam.

That is a fantastic looking Scooter. Great job.

I was looking to work on the fuel tanks tonight. I am going to glue them with some clear silicon, or is there a better way???
Velcro is the best way. The inlet ducting just need zap with CA to hold in place.
You want everything easy to remove for service later.
Tam
Old 10-23-2007 | 10:27 AM
  #28  
Stig Andersen's Avatar
Senior Member
 
Joined: Feb 2003
Posts: 1,277
Likes: 0
Received 0 Likes on 0 Posts
From: Nordborg, DENMARK
Default RE: Tam A4 Build

Hello Tam.

I just tried to install the main tank, but couldn't find a way in. Is there a trick or di I need to cut away a peice from the cockpit opening to get it into the fuselage.
Attached Thumbnails Click image for larger version

Name:	Tr51922.jpg
Views:	54
Size:	34.7 KB
ID:	788700   Click image for larger version

Name:	Oj28559.jpg
Views:	61
Size:	20.2 KB
ID:	788701   Click image for larger version

Name:	Ze85824.jpg
Views:	53
Size:	20.1 KB
ID:	788702  
Old 10-23-2007 | 11:23 AM
  #29  
cactusflyer's Avatar
My Feedback: (4)
 
Joined: Feb 2002
Posts: 1,473
Received 2 Likes on 1 Post
From: Anthem, AZ
Default RE: Tam A4 Build

Stig,

WRONG HOLE! ...and you can quote me on that! The tanks go in from the back hatch.....It looks like you have glued the intake duct in so that may be a problem. The instructions show how to make a small plywood piece to screw the ducts in so that they can be removed for servicing. Here are pages 17 and 18 from the manual. Sorry about the poor quality...I did a quick scan and paste..........

Tailwinds,

John
Attached Thumbnails Click image for larger version

Name:	Wt59300.jpg
Views:	61
Size:	90.6 KB
ID:	788758   Click image for larger version

Name:	Pk31170.jpg
Views:	61
Size:	81.8 KB
ID:	788759  
Old 10-23-2007 | 12:16 PM
  #30  
My Feedback: (2)
 
Joined: Dec 2001
Posts: 4,586
Likes: 0
Received 1 Like on 1 Post
From:
Default RE: Tam A4 Build


ORIGINAL: Stig Andersen

Hello Tam.

I just tried to install the main tank, but couldn't find a way in. Is there a trick or di I need to cut away a peice from the cockpit opening to get it into the fuselage.

Stig,
I can remember how to do the tank. Wait a minute. I'm flying on Lipo fuel. No tank needed.

Anyways,
John just explain it. You want the ducting able to remove for service.
The tank going from the engine hatch. The inlet ducting can be zap with CA after the tank install . That way you can easy remove the inlet ducting if need service.
Attached Thumbnails Click image for larger version

Name:	Ig13499.jpg
Views:	58
Size:	14.3 KB
ID:	788849   Click image for larger version

Name:	Xs56962.jpg
Views:	54
Size:	24.3 KB
ID:	788850   Click image for larger version

Name:	Uz67890.jpg
Views:	48
Size:	15.6 KB
ID:	788851   Click image for larger version

Name:	Vo38075.jpg
Views:	45
Size:	15.4 KB
ID:	788852   Click image for larger version

Name:	Fq89000.jpg
Views:	44
Size:	21.6 KB
ID:	788853   Click image for larger version

Name:	Ri67911.jpg
Views:	53
Size:	26.8 KB
ID:	788854  
Old 10-23-2007 | 12:35 PM
  #31  
Stig Andersen's Avatar
Senior Member
 
Joined: Feb 2003
Posts: 1,277
Likes: 0
Received 0 Likes on 0 Posts
From: Nordborg, DENMARK
Default RE: Tam A4 Build

ORIGINAL: tamjets

John just explain it. You want the ducting able to remove for service.
The tank going from the engine hatch. The inlet ducting can be zap with CA after the tank install . That way you can easy remove the inlet ducting if need service.
OK, I see. [sm=bananahead.gif]The inlets were already glued in when I got the kit....... I hope I can break it loose again without damaging it. I'll let you guys know how it went.
Thanks, guys.
Old 10-23-2007 | 01:22 PM
  #32  
My Feedback: (2)
 
Joined: Dec 2001
Posts: 4,586
Likes: 0
Received 1 Like on 1 Post
From:
Default RE: Tam A4 Build


ORIGINAL: Stig Andersen

ORIGINAL: tamjets

John just explain it. You want the ducting able to remove for service.
The tank going from the engine hatch. The inlet ducting can be zap with CA after the tank install . That way you can easy remove the inlet ducting if need service.
OK, I see. [sm=bananahead.gif]The inlets were already glued in when I got the kit....... I hope I can break it loose again without damaging it. I'll let you guys know how it went.
Thanks, guys.

That is easy to break loose.
I had done so many of those.
Old 10-23-2007 | 02:43 PM
  #33  
Stig Andersen's Avatar
Senior Member
 
Joined: Feb 2003
Posts: 1,277
Likes: 0
Received 0 Likes on 0 Posts
From: Nordborg, DENMARK
Default RE: Tam A4 Build

Hello tam.

You were right. It was easy to break loose. I finished the fuel tank installation tonight. I used silicone for the fuel tanks. It is easy to cut through it with a sharp knife, should I ever need to take them out. Sorry no pics today.
Old 10-23-2007 | 02:58 PM
  #34  
My Feedback: (2)
 
Joined: Dec 2001
Posts: 4,586
Likes: 0
Received 1 Like on 1 Post
From:
Default RE: Tam A4 Build


ORIGINAL: Stig Andersen

Hello tam.

You were right. It was easy to break loose. I finished the fuel tank installation tonight. I used silicone for the fuel tanks. It is easy to cut through it with a sharp knife, should I ever need to take them out. Sorry no pics today.
Use velcro to secure the tanks. That way is easy to remove and no need to cut or clean up the silicone.
Old 10-23-2007 | 03:23 PM
  #35  
 
Joined: Apr 2006
Posts: 5,962
Likes: 0
Received 1 Like on 1 Post
From: Enterprise, AL
Default RE: Tam A4 Build

oops, read that wrong..........
Old 10-24-2007 | 03:12 AM
  #36  
marc s's Avatar
Thread Starter
 
Joined: Jan 2007
Posts: 3,294
Likes: 0
Received 1 Like on 1 Post
From: farnborough, , UNITED KINGDOM
Default RE: Tam A4 Build

Stig.

Hope you dont mind an observation but you may find it easier to get all the wiring and cable runs in from the rear of the jet to the front section first, while you have good access to the fuselage bottom, before fitting the tanks.

Looking at the manual and build threads this seems the best method and less hastle, especially as the runs are either side of the main tank.

marc.
Old 10-24-2007 | 11:47 AM
  #37  
Stig Andersen's Avatar
Senior Member
 
Joined: Feb 2003
Posts: 1,277
Likes: 0
Received 0 Likes on 0 Posts
From: Nordborg, DENMARK
Default RE: Tam A4 Build

ORIGINAL: marc s

Stig.

Hope you dont mind an observation but you may find it easier to get all the wiring and cable runs in from the rear of the jet to the front section first, while you have good access to the fuselage bottom, before fitting the tanks.

Looking at the manual and build threads this seems the best method and less hastle, especially as the runs are either side of the main tank.

marc.
Hello Marc.

Thanks for the advice, but I mounted the tanks with silicone yesterday and I found today, that there is enought room to run the air hoses and the servo leads on either side of the main tank. I made sure that there is approx. 10 mm between the fuselage and the main tank on either side. Using my Dremel, I made a hole in the bulkhead where the leads and hoses can pass through. I think it is OK.

BTW, Tam. Where do I put the UAT?

Here are some pics.
Attached Thumbnails Click image for larger version

Name:	Qo39501.jpg
Views:	57
Size:	15.8 KB
ID:	789560   Click image for larger version

Name:	Rm36249.jpg
Views:	54
Size:	33.3 KB
ID:	789561   Click image for larger version

Name:	Ty64945.jpg
Views:	57
Size:	15.9 KB
ID:	789562  
Old 10-24-2007 | 12:36 PM
  #38  
 
Joined: Apr 2006
Posts: 5,962
Likes: 0
Received 1 Like on 1 Post
From: Enterprise, AL
Default RE: Tam A4 Build

Stig

with the saddle tanks siliconed in like that you're gonna have a hard time getting the support brace bolts in place. UAT goes as close to the nose as you can get it to help with balancing.
Old 10-24-2007 | 01:06 PM
  #39  
Stig Andersen's Avatar
Senior Member
 
Joined: Feb 2003
Posts: 1,277
Likes: 0
Received 0 Likes on 0 Posts
From: Nordborg, DENMARK
Default RE: Tam A4 Build


ORIGINAL: KC36330

Stig

with the saddle tanks siliconed in like that you're gonna have a hard time getting the support brace bolts in place. UAT goes as close to the nose as you can get it to help with balancing.
I left about 15 mm of space between the bulkhead and the saddle tanks. Should be enough for the brace, washer and nut.

I'll see how far up front I can get the UAT. Thanks
Attached Thumbnails Click image for larger version

Name:	Ec88130.jpg
Views:	58
Size:	27.4 KB
ID:	789592  
Old 10-24-2007 | 01:13 PM
  #40  
 
Joined: Apr 2006
Posts: 5,962
Likes: 0
Received 1 Like on 1 Post
From: Enterprise, AL
Default RE: Tam A4 Build

i put my fuel pump, smoke pump, ECU batt and Duralite batt all in the nose cone and had the UAT under the cockpit floor, balance worked out perfect.
Old 10-24-2007 | 01:15 PM
  #41  
Stig Andersen's Avatar
Senior Member
 
Joined: Feb 2003
Posts: 1,277
Likes: 0
Received 0 Likes on 0 Posts
From: Nordborg, DENMARK
Default RE: Tam A4 Build


ORIGINAL: KC36330

i put my fuel pump, smoke pump, ECU batt and Duralite batt all in the nose cone and had the UAT under the cockpit floor, balance worked out perfect.
OK. Thanks for the advice. I figured that the model neede weight in the nose, but I'm confident that I can put all my gear in the nose section to avoid having to use lead for balancing.
Old 10-25-2007 | 02:57 PM
  #42  
Stig Andersen's Avatar
Senior Member
 
Joined: Feb 2003
Posts: 1,277
Likes: 0
Received 0 Likes on 0 Posts
From: Nordborg, DENMARK
Default RE: Tam A4 Build

Today I was able to install some of the decals. The waterslide type needs to be sprayed with clear coat BEFORE they are put in water, so I didn't install them today, My working space was moved into the living room, due to the football games. (Soccer)

Ooops. Gotta clean up before the wife get home
Attached Thumbnails Click image for larger version

Name:	Us53626.jpg
Views:	61
Size:	49.1 KB
ID:	790192   Click image for larger version

Name:	Vq51165.jpg
Views:	54
Size:	40.3 KB
ID:	790193   Click image for larger version

Name:	Jo29647.jpg
Views:	65
Size:	48.5 KB
ID:	790194  
Old 10-27-2007 | 02:05 PM
  #43  
marc s's Avatar
Thread Starter
 
Joined: Jan 2007
Posts: 3,294
Likes: 0
Received 1 Like on 1 Post
From: farnborough, , UNITED KINGDOM
Default RE: Tam A4 Build

Update.

Working mainly on the wings, have decided to instal the gear leg pod ply frame into the fiberglass mounding first and then trim it as required, it seems to provide a more sturdy method especially with the fixings to the wing.

I am unsing M3 bolts into blind nuts set below the wing surface on ply plates, the result seems solid and easy to remove (2 bolts)

Built and assembled the servo and air connection panel, which will get Aeropoxied into the wing once the gear is in and connected up, once this is done I will cut the corresponding shape out of the fuselage and install the opposite mating panel.

Tanks all assembled, to make sure things remain fitted I ground down some brass Festo barbed connectors (one side) and soldered them into the tank pipe ends, this gives a better purchase for the fuel pipe. All connections are wired.

Painted the inside of the wing area where the wheel retracts into to make it look a little more pleasing to the eye.

Now just waiting for glue to dry[]
Attached Thumbnails Click image for larger version

Name:	Wu59433.jpg
Views:	56
Size:	41.7 KB
ID:	791552   Click image for larger version

Name:	Dy78352.jpg
Views:	58
Size:	33.2 KB
ID:	791553   Click image for larger version

Name:	Vb73923.jpg
Views:	57
Size:	43.4 KB
ID:	791554   Click image for larger version

Name:	Vp40082.jpg
Views:	53
Size:	65.0 KB
ID:	791555   Click image for larger version

Name:	Xj63491.jpg
Views:	55
Size:	31.6 KB
ID:	791556   Click image for larger version

Name:	Br12364.jpg
Views:	51
Size:	54.7 KB
ID:	791557   Click image for larger version

Name:	Vx45750.jpg
Views:	47
Size:	69.6 KB
ID:	791558  
Old 10-27-2007 | 02:45 PM
  #44  
My Feedback: (2)
 
Joined: Dec 2001
Posts: 4,586
Likes: 0
Received 1 Like on 1 Post
From:
Default RE: Tam A4 Build

Marc,
The split flap you had it on the wrong side. White be outside and red inside.
Attached Thumbnails Click image for larger version

Name:	Yw69253.jpg
Views:	59
Size:	183.3 KB
ID:	791594  
Old 10-27-2007 | 02:48 PM
  #45  
My Feedback: (2)
 
Joined: Dec 2001
Posts: 4,586
Likes: 0
Received 1 Like on 1 Post
From:
Default RE: Tam A4 Build

UAT tank
Attached Thumbnails Click image for larger version

Name:	Qo39470.jpg
Views:	66
Size:	252.5 KB
ID:	791595  
Old 10-27-2007 | 03:45 PM
  #46  
marc s's Avatar
Thread Starter
 
Joined: Jan 2007
Posts: 3,294
Likes: 0
Received 1 Like on 1 Post
From: farnborough, , UNITED KINGDOM
Default RE: Tam A4 Build

Tam, unfortunately this split flaps were taped on this way round so I assumed this was the scheme. If push comes to shove a little paint will remedy - I kind of like it but I would seeing as it's this way round now
Old 10-31-2007 | 02:16 PM
  #47  
Stig Andersen's Avatar
Senior Member
 
Joined: Feb 2003
Posts: 1,277
Likes: 0
Received 0 Likes on 0 Posts
From: Nordborg, DENMARK
Default RE: Tam A4 Build

I got some more work done on mine. Hoping to fly it next weekend. (Nov. 10th)
Attached Thumbnails Click image for larger version

Name:	Qn38404.jpg
Views:	67
Size:	29.9 KB
ID:	794172   Click image for larger version

Name:	Ez82130.jpg
Views:	57
Size:	38.5 KB
ID:	794173   Click image for larger version

Name:	Fk15480.jpg
Views:	59
Size:	51.3 KB
ID:	794174   Click image for larger version

Name:	Wq41750.jpg
Views:	65
Size:	43.9 KB
ID:	794175   Click image for larger version

Name:	Lw19764.jpg
Views:	61
Size:	38.0 KB
ID:	794176   Click image for larger version

Name:	Qh65564.jpg
Views:	69
Size:	18.9 KB
ID:	794177  
Old 10-31-2007 | 04:10 PM
  #48  
 
Joined: Apr 2006
Posts: 5,962
Likes: 0
Received 1 Like on 1 Post
From: Enterprise, AL
Default RE: Tam A4 Build

Stig

looking at your pics you only have two lines from the main tank, an in and an out, for me it worked best to have two vent lines out of the main tank, one feeding each header tank, it gave better filling without allot of main tank and UAT swelling and better even draining of the saddles.
Old 10-31-2007 | 04:22 PM
  #49  
ianober's Avatar
My Feedback: (12)
 
Joined: Aug 2002
Posts: 4,462
Likes: 0
Received 0 Likes on 0 Posts
From: Scottsdale, AZ
Default RE: Tam A4 Build


ORIGINAL: KC36330

Stig

looking at your pics you only have two lines from the main tank, an in and an out, for me it worked best to have two vent lines out of the main tank, one feeding each header tank, it gave better filling without allot of main tank and UAT swelling and better even draining of the saddles.

Yes Stig, I would do this, it will make your fuel pump work easier and last longer.
Old 10-31-2007 | 04:29 PM
  #50  
My Feedback: (2)
 
Joined: Dec 2001
Posts: 4,586
Likes: 0
Received 1 Like on 1 Post
From:
Default RE: Tam A4 Build


ORIGINAL: ianober


ORIGINAL: KC36330

Stig

looking at your pics you only have two lines from the main tank, an in and an out, for me it worked best to have two vent lines out of the main tank, one feeding each header tank, it gave better filling without allot of main tank and UAT swelling and better even draining of the saddles.

Yes Stig, I would do this, it will make your fuel pump work easier and last longer.
It a must....The main tank can crack easy under high pressure when filling. This dual vent to saddle tanks at least reduce that problem.
Attached Thumbnails Click image for larger version

Name:	Qo40535.jpg
Views:	55
Size:	130.3 KB
ID:	794244  


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

Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.