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Charlie Kellogg's TBM Avenger Build

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Old 12-15-2018, 09:52 AM
  #3501  
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Boyd and Larry - don't kid yourselves. I have and will continue LEARNING from each of you guys and all the others who chime in on each of our build threads. But - it is a Scale Builders Site so I guess the scale builders are there. Nice bunch of guys - ALSO. Chic
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Old 12-23-2018, 04:21 AM
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May you all have a Wonderful Holiday and Christmas Season. May you all also have a Healthy and Fruitful New Year. Chic
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Old 12-23-2018, 04:23 AM
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Chic,
I second that, and hope that Santa delivers enough balsa that we are covered in balsa dust by the end of January

Larry
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Old 12-30-2018, 10:23 AM
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Happy New Year and Blue Skies And Light Winds To Everyone. Chic
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Old 12-30-2018, 10:39 AM
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I 2nd that
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Old 12-30-2018, 01:27 PM
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All the best for the coming year to you all
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Old 01-17-2019, 03:02 PM
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Hey Noah, Peter, or anyone with experience with a Moki radial on the Kellogg TBM..

Did you do any reinforcement to the formers or stringers between the firewall (F1) and the next formers (F2-F4)?

I am FINALLY making some progress on mine and wanted some feedback on the structural integrity at the firewall, before I get further along.

Thanks,
Jerry
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Old 01-19-2019, 10:52 AM
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Hey, Jerry

I did a fair bit of messing with the front formers. shifted the forward-most former back to accommodate the longer Moki engine.

Here is a link to the start of the relevant descriptions and photos:

Charlie Kellogg's TBM Avenger Build

I think Peter ended up with a much better installation, but I don't recall seeing the details of how he finessed it all into place.

Perhaps he'll chime in here?

Upload some pictures of your build here, man!

Best

Noah
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Old 01-22-2019, 11:54 AM
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Originally Posted by butlern View Post
Hey, Jerry

I did a fair bit of messing with the front formers. shifted the forward-most former back to accommodate the longer Moki engine.

Here is a link to the start of the relevant descriptions and photos:

Charlie Kellogg's TBM Avenger Build

I think Peter ended up with a much better installation, but I don't recall seeing the details of how he finessed it all into place.

Perhaps he'll chime in here?

Upload some pictures of your build here, man!

Best

Noah
Hey Noah,

I read all what you posted several times I cannot thank you and the others on this forum enough for keeping it alive, as there is a TON of valuable information. I used what both you and Peter did with the false (F0) firewall, and that has work out great.

My question is around the statement you made as follows:

The other thing I did was to cut a new F-3. My plan is to tie together F-1 through F-4 with hardwood dowls to help distribute the forces (torque and weight) of the radial engine. The original F-3 was, in my opinion, too thin for this particular motor installation. For those keeping score, there is no F-2. Not sure why that number was omitted from the plans and drawings.

Did you add the dowels (dowls) or just use the stringers on the plans?
Thanks,
Jerry

Here are a couple of pictures of my TBM.



Fuselage under way!


My Question is did you beef up the stringers between these formers?


Removal firewall



Horizontal stab test placement


Last edited by jdeluyck; 01-22-2019 at 12:06 PM. Reason: Needed to change the pictures
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Old 01-22-2019, 01:19 PM
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Jerry,
not sure which is more impressive the build or the shop, nice work.
FYI, if that's a Sierra tail wheel double check that it locks when in the dow position, ours needed to be filed a bit to get it to lock.

Larry
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Old 01-22-2019, 03:35 PM
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Looks great, Jerry!

Yes, sorry. I did use dowels. 1/4 inch hardwood, installed about 5-6, as I recall, distributed equally around F1 (drilled half-way between inner and outer edges of F1). Used a long drill bit so I could pass the dowel through 3-4 formers (or as many as I could tack together. Then cut the excess flush with front of F1. used hysol to lock them into place where they passed through each former.

Not sure if I captured any pictures of that. I will have to go back and check. Might have been shown in later stages of build. Maybe not, as I sheeted the fuse pretty quickly after that.

Noah
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Old 01-22-2019, 03:45 PM
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couldn't find a good picture, but in the attached I circled (in red) the areas where I think I see the ends of the dowels cut off and sanded flush.

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Old 01-22-2019, 03:50 PM
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Originally Posted by lkahn4 View Post
Jerry,
not sure which is more impressive the build or the shop, nice work.
FYI, if that's a Sierra tail wheel double check that it locks when in the down position, ours needed to be filed a bit to get it to lock.

Larry
Thanks Larry!
I actually replace part of the scissor to make it close further, and made sure it over locks... I saw this tidbit in this thread
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Old 01-22-2019, 03:51 PM
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Originally Posted by butlern View Post
couldn't find a good picture, but in the attached I circled (in red) the areas where I think I see the ends of the dowels cut off and sanded flush.

Thanks Noah! I think I am going to do something similar.
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Old 01-22-2019, 04:28 PM
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If you zoom in on the picture, you can see the dowel passing from F1 through F3 and F4. I added an arrow below. I still think the plans don't show an F2, right? Maybe I dreamed all the up.

Anyway, you cannot pass through too many formers at the bottom (because the torpedo bay, of course), but you should be able to tie several together with some dowels.

Also, I am planning a new project for the summer (I'll be starting it this summer)... 1/3 scale Brewster Buffalo!

And of course I'll be needing some stencils from you eventually!

Best,

Noah

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