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USMC M50A1 ONTOS - National Museum of the Marine Corps

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  • Member since
    September 2018
  • From: Vancouver, Washington USA
USMC M50A1 ONTOS - National Museum of the Marine Corps
Posted by Sergeant on Friday, February 7, 2020 4:16 PM

This is my new project, an Academy 1/35 scale USMC M50A1 ONTOS #13218. My close friend was a Marine Captain in charge of six ONTOS during the Vietnam War. He is now 81-years old and I plan to surprise him with this model. I have the model on my work bench waiting for a Voyager #PE35370 detail set and Verlinden #2623 interior set. Please see the ONTOS video below.

I read several reviews that indicate the Academy model is not the best engineered, but the Voyager upgrade can really make it look good. I'm excited to get started on this project as soon as I finish the Asuka M4A3 Sherman I'm working on now.

Harold

 

ONTOS Video: https://www.youtube.com/watch?v=XxRzZMuvrg8

 

 

  • Member since
    December 2002
  • From: Valrico, FL
Posted by HeavyArty on Friday, February 7, 2020 4:31 PM

Nice.  I did one a while ago for a customer w/the Voyager PE/barrel set.  It came out really nicely.  The Verlinden interior is nice as well.  Looking forward to seeing this one.

Gino P. Quintiliani - Field Artillery - The KING of BATTLE!!!

Check out my Gallery: https://app.photobucket.com/u/HeavyArty

"People sleep peaceably in their beds at night only because rough men stand ready to do violence on their behalf." -- George Orwell

  • Member since
    July 2004
  • From: Sonora Desert
Posted by stikpusher on Friday, February 7, 2020 4:57 PM

I have a few photos of the interior of a restored Ontos from a museum at Camp Pendleton if you’d like me to post them for your reference here.

 

F is for FIRE, That burns down the whole town!

U is for URANIUM... BOMBS!

N is for NO SURVIVORS...

       - Plankton

LSM

 

  • Member since
    May 2009
  • From: Poland
Posted by Pawel on Friday, February 7, 2020 5:01 PM

Hello!

Lookin' forward to see this one built! Our friend redleg12 (Mike Del Vecchio) built one many years ago and at that time he wrote that there might be some problems with the geometry of the suspension in the academy model - you might want to check it out, I think it's fixable at an early stage.

Anyhow - I'll be watching, so good luck with your build and have a nice day!

Paweł

All comments and critique welcomed. Thanks for your honest opinions!

www.vietnam.net.pl

  • Member since
    September 2018
  • From: Vancouver, Washington USA
Posted by Sergeant on Friday, February 7, 2020 5:17 PM

stikpusher

I have a few photos of the interior of a restored Ontos from a museum at Camp Pendleton if you’d like me to post them for your reference here.

 

Please do post your interior pictures Carlos. Thank you.

Harold

  • Member since
    September 2018
  • From: Vancouver, Washington USA
Posted by Sergeant on Friday, February 7, 2020 5:24 PM

Pawel

Hello!

Lookin' forward to see this one built! Our friend redleg12 (Mike Del Vecchio) built one many years ago and at that time he wrote that there might be some problems with the geometry of the suspension in the academy model - you might want to check it out, I think it's fixable at an early stage.

Anyhow - I'll be watching, so good luck with your build and have a nice day!

Paweł

 

Pawel, I also read something about the suspension problem. I'll try and find the posting or article. Thank you.

Harold

  • Member since
    September 2018
  • From: Vancouver, Washington USA
Posted by Sergeant on Friday, February 7, 2020 5:59 PM

HeavyArty

Nice.  I did one a while ago for a customer w/the Voyager PE/barrel set.  It came out really nicely.  The Verlinden interior is nice as well.  Looking forward to seeing this one.

 

Thank you Gino.

Harold

  • Member since
    September 2018
  • From: Vancouver, Washington USA
Posted by Sergeant on Saturday, February 22, 2020 5:57 PM

With help from Snapdragonxxx (James) I have determined what color to paint this model. The correct USMC green for tactical vehicles is FS34052. Some modelers have indicated that FS24052 is the correct color, but I believe that is an error.  I read the instructions for FED-STD-595C and they indicate the first number in the FS numbering system is the sheen. 2 = semi-gloss and 3 = matte finish, so one would presume the 24052 and 34052 are the same color with different sheens.

However, the two colors look completely different online and the FS instructions warn against using a computer to determine the actual color, just like we talked about in this forum. For my M50A1 ONTOS I intend to use Vallejo Model Air paint and Vallejo indicates that 71.013 Yellow Olive shown below is FS34052 and Marine Corps specifications indicate that FS34052 is USMC green used on tactical vehicles.

The spoon sample picture below was taken this morning outside in the sun and best represents what I see with my eyes. The sample was painted with Vallejo 74.601 Grey Surface Primer, allowed to dry 24 hours. Then painted with one coat of Vallejo 71.013 Yellow Olive mixed in my air brush, 10 drops of paint to 1 drop of Vallejo 71.161 Airbrush Thinner.

Harold

  • Member since
    September 2018
  • From: Vancouver, Washington USA
Posted by Sergeant on Saturday, February 22, 2020 6:39 PM

I invested in a photo-etch bending tool from The Small Shop for this project, please see links below. The only thing missing is the Voyager upgrade kit of photo-etched parts. They were ordered through eBay back on February 5th and have not arrived yet. However, the Voyager kit is coming from Australia, so I will wait until the end of the month.

Armorama Review:

http://www.armorama.com/modules.php?op=modload&name=Reviews&file=index&req=showcontent&id=4444

IPMS/USA Review:

https://web.ipmsusa3.org/content/5-speed-hold-fold-workstation

Harold

  • Member since
    July 2004
  • From: Sonora Desert
Posted by stikpusher on Saturday, February 22, 2020 9:35 PM

Apologies for my delay in posting these for you.

Drivers Compartment, looking in from the left side

 

F is for FIRE, That burns down the whole town!

U is for URANIUM... BOMBS!

N is for NO SURVIVORS...

       - Plankton

LSM

 

  • Member since
    July 2004
  • From: Sonora Desert
Posted by stikpusher on Saturday, February 22, 2020 9:36 PM

Ammo rack below rear hatch

 

F is for FIRE, That burns down the whole town!

U is for URANIUM... BOMBS!

N is for NO SURVIVORS...

       - Plankton

LSM

 

  • Member since
    July 2004
  • From: Sonora Desert
Posted by stikpusher on Saturday, February 22, 2020 9:38 PM

Looking in rear hatch

 

 

 

F is for FIRE, That burns down the whole town!

U is for URANIUM... BOMBS!

N is for NO SURVIVORS...

       - Plankton

LSM

 

  • Member since
    September 2018
  • From: Vancouver, Washington USA
Posted by Sergeant on Saturday, February 22, 2020 9:53 PM

Wow those are great pictures! Thank you so much Carlos, your timing is perfect.

Do you think the interior paint is matte finish?

Harold

  • Member since
    July 2004
  • From: Sonora Desert
Posted by stikpusher on Sunday, February 23, 2020 11:09 AM

You’re welcome. I’m glad that you find them useful.

 

I want to say it was satin or semi gloss. I know it’s completely different, but the M113 family vehicles that I crewed or rode in had the interior in that satin/semi gloss finish.

 

F is for FIRE, That burns down the whole town!

U is for URANIUM... BOMBS!

N is for NO SURVIVORS...

       - Plankton

LSM

 

  • Member since
    November 2009
  • From: SW Virginia
Posted by Gamera on Monday, February 24, 2020 11:47 AM

Now this is gonna be interesting to say the least!!! Yes

"I dream in fire but work in clay." -Arthur Machen

 

  • Member since
    September 2012
Posted by GMorrison on Monday, February 24, 2020 3:39 PM

Memories of the Renwal 1/32 Ontos from back in the 50's!

Didn't this beast have a M2 mounted on one of the tubes for ranging?

 Modeling is an excuse to buy books.

 

  • Member since
    May 2017
  • From: Park City, Utah
Posted by Frankenpanzer on Monday, February 24, 2020 4:57 PM

Tamiya XF-74 is the best match I have found based on my hazy memory.

  • Member since
    December 2002
  • From: Valrico, FL
Posted by HeavyArty on Tuesday, February 25, 2020 8:00 AM

GMorrison

Didn't this beast have a M2 mounted on one of the tubes for ranging?

 
Each gun has the mount to add the .50 cal ranging gun above it.  Usually the top 4 had the guns mounted.
 
Pawel
...there might be some problems with the geometry of the suspension in the academy model - you might want to check it out, I think it's fixable at an early stage.
 
The suspension is squashed together and down at the front.  It is not an easy fix.  I left it alone on mine.  You can read what Steven Zaloga had to say about it, along with a pic.  He left it alone as well.    
 

Gino P. Quintiliani - Field Artillery - The KING of BATTLE!!!

Check out my Gallery: https://app.photobucket.com/u/HeavyArty

"People sleep peaceably in their beds at night only because rough men stand ready to do violence on their behalf." -- George Orwell

  • Member since
    September 2018
  • From: Vancouver, Washington USA
Posted by Sergeant on Tuesday, February 25, 2020 11:47 AM

Gino, when Pawel mention the suspension issue I studied several ONTOS photographs and also found pictures of the Renwal 1/32 Ontos model. It became clear the front of the Academy model is lower then actual photographs and for that matter different than the 1950's Renwal model.

I'm not sure the Academy tracks will allow much expansion, but now that I know what to look for I will try and find a modification method before I start assembly.

Harold

  • Member since
    September 2012
Posted by GMorrison on Tuesday, February 25, 2020 12:02 PM

HeavyArty

 

 
GMorrison

Didn't this beast have a M2 mounted on one of the tubes for ranging?

 

 

 
Each gun has the mount to add the .50 cal ranging gun above it.  Usually the top 4 had the guns mounted.
 

Oh, I see that now on the Voyager set.

 Modeling is an excuse to buy books.

 

  • Member since
    October 2004
  • From: Orlando, Florida
Posted by ikar01 on Wednesday, February 26, 2020 9:11 PM

Always loved the Ontos.  I have to get those detail sets!

  • Member since
    September 2018
  • From: Vancouver, Washington USA
Posted by Sergeant on Thursday, February 27, 2020 12:35 PM

HeavyArty
Panel
...there might be some problems with the geometry of the suspension in the academy model - you might want to check it out, I think it's fixable at an early stage.
 
The suspension is squashed together and down at the front.  It is not an easy fix.  I left it alone on mine.  You can read what Steven Zaloga had to say about it, along with a pic.  He left it alone as well.    
 
 

Gino, please take a look at the location of part B34 and B33 in steps 1 and 2 of the assembly instructions:

https://www.scalemates.com/products/img/3/9/7/129397-11-instructions.pdf

If the location of these two parts are lowered on the hull I believe it would have the effect of raising the front end giving the model the correct profile.

Steven Zaloga's overlay shows the distance between the wheels get progressively shorter on the model compared to the Ordnance Tank Automtive Command plans. I don't think there is anything I can do about that without relocating the rest of the axel locations. What do you think

Harold

  • Member since
    December 2002
  • From: Valrico, FL
Posted by HeavyArty on Thursday, February 27, 2020 12:43 PM

Maybe, I'm not sure.  I would think you have to lower the whole front roadwheel arm (B42, B43) location to raise the front end.  It also needs to come forward, as do the 2nd and 3rd roadwheel.  Then adjust the position of each of the subsequent road wheel arms as well.  Like I said, it isn't as easy as it looks.  That is why I left mine as is.  As Zaloga says, "the kit looks like an Ontos," when done.

Gino P. Quintiliani - Field Artillery - The KING of BATTLE!!!

Check out my Gallery: https://app.photobucket.com/u/HeavyArty

"People sleep peaceably in their beds at night only because rough men stand ready to do violence on their behalf." -- George Orwell

  • Member since
    September 2018
  • From: Vancouver, Washington USA
Posted by Sergeant on Thursday, February 27, 2020 4:14 PM

Today I received the two upgrade kits I've been waiting for to start this project. Most notable is the Voyager Model kit #PE35370 which traveled 8,000 miles from a place near Alice Springs, Australia. I attempted to purchase this kit from a source in China but was unsuccessful.

I tested the paint selections on plastic spoons and decided to use Vallejo #74.601 Grey Surface Primer, Vallejo #71.013 Yellow Olive for an exterior finish which matches FS34052 USMC Green. Vallejo #71.001 White for an interior base coat and clear coat the exterior with Vallejo #70.520 Matt Varnish and Vallejo #70.522 Satin Varnish for the interior.

I also purchased a photo-etch bending tool from The Small Shop to improve the quality of forming PE parts on this project. And again, I plan to use my Iwata RG-3L-3 spray gun for most of the painting and my air brush where I need too.

The first step is to decide if I want to modify the suspension which is known to be problem. As Gino pointed out it is a lot of work and without modification the finished model still looks like an ONTOS.

Harold

  • Member since
    September 2018
  • From: Vancouver, Washington USA
Posted by Sergeant on Friday, February 28, 2020 12:41 PM

Completed steps 1 through 4 plus 12 that allowed me to see if adjustments I made to the suspension gave the model the correct 'nose-up' profile. What do you think?

I decided not to try and correct the wheel spacing because it would require major changes, but rather concentrate on getting the front of the model to look less squashed.

Harold

  • Member since
    December 2002
  • From: Valrico, FL
Posted by HeavyArty on Friday, February 28, 2020 1:08 PM

Looks much better.  Good job so far.  The second and third road wheel look a little high now.  They look to be floating above the lower track.

Gino P. Quintiliani - Field Artillery - The KING of BATTLE!!!

Check out my Gallery: https://app.photobucket.com/u/HeavyArty

"People sleep peaceably in their beds at night only because rough men stand ready to do violence on their behalf." -- George Orwell

  • Member since
    September 2018
  • From: Vancouver, Washington USA
Posted by Sergeant on Friday, February 28, 2020 3:40 PM

HeavyArty

Looks much better.  Good job so far.  The second and third road wheel look a little high now.  They look to be floating above the lower track.

 

Gino, you have very good eyes, I didn't know if anyone would notice. The second set of road wheels are definitely floating about 2 mm above the lower part of the track and the third set of wheels are just touching the track. However, now I know what to do, but it's to late on this model. I'm hoping when this model is painted in USMC Green the wheels will be dark enough you won't notice the issue.

The adjustment I made is where the suspension arms connect to the hull. I noticed there was some play in the way the parts fit together, so I modified the arm where it fits into the hull to allow downward rotation about 3 to 5 mm which raised the hull just enough to give the model a typical ONTOS profile. If I built another M50A1 I would be more careful that each set of wheels touch the track.

Harold

 
 
 

  • Member since
    September 2012
Posted by GMorrison on Friday, February 28, 2020 3:47 PM

You could put it on a terrain base. I think that and so figs around it would suit it well, sort of a crew served artillery piece.

You did a nice job on it so far.

 Modeling is an excuse to buy books.

 

  • Member since
    September 2018
  • From: Vancouver, Washington USA
Posted by Sergeant on Friday, February 28, 2020 3:59 PM

GMorrison

You could put it on a terrain base. I think that and so figs around it would suit it well, sort of a crew served artillery piece.

You did a nice job on it so far.

 

Very good idea GMorrison and thank you for the kind words. I'm building this for a friend who was a Captain in the Marine Corps in charge of six ONTOS during the Vietnam War. I can have a nice wood base with a little ground cover and a plaque with his Unit information and Logo.

  • Member since
    November 2004
Posted by snapdragonxxx on Friday, February 28, 2020 6:17 PM

Hi sarge,

Coming on well this. I would put some dirt etc under the tracks and lift them so they fit the wheels and make it look like the suspension is doing stuff!

Looking forwards to seeing the green on it. You could take the greens to your friend and see what he says about the various shades before painting. Maybe he has some photos?

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