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1/35 AFV Club Churchill Mk IV AVRE with Bridge (D-O-N-E)

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  • Member since
    August 2021
Posted by lurch on Sunday, November 12, 2023 9:07 AM

You guys are doing great. You picked a very interesting subject. Great attention to detail you are doing. will be following closely.

  • Member since
    June 2018
  • From: Ohio (USA)
Posted by DRUMS01 on Thursday, November 9, 2023 6:15 PM

Let's see, the last update was step 23 with the track links. Now that they are done we began completing the remaining subassemblies in prep for painting. 

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Because of setting assemblies aside for paint, we could not complete step 24 which was the adding of the track guards over the attached tracks. Here we moved forward in building those assemblies. Instead of showing every individual step, Jarrod and I are going to show you the built up sub-assemblies and identify any positives or negatives along the way. 

The first assembly after 24 was the mechanical gear reduction rig for lifting or lowering the bridge. We are please to say that is fit together with no problems. We would caution anyone building this kit to make sure the parts are oriented as shown in the instructions. While that sounds obvious, little differences in some of the gears and bracing make a big difference in the fit. Here is the completed assembly:

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Next was the build-up of the turret. One thing we found out much earlier in this build is the desire by AFV Club to make as many parts as possible, especially small ones. We say that because on some parts they mold nice details into it while others have individual pins, hooks, handles, bolt heads, caps, etc. in as many parts as possible (?). We are not complaining about the detail at all, just questioning the need sometimes for the parts count. Speaking of detail, the turret has a nice scale cast texture along with manufacturer numbers on the side.  

The first part of the turret was building the gun breech and in this AFV club excelled. Once the gun internals were added to the lower part of the turret the top was added to close it up. The external portion of the mortar can be built either in the stowed position or locked in battery, ready to use. 

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During this part of the build we identified that part "N" (a small metal spring) was not with the kit either. Perhaps it was in the same bag as the polly caps that were also missing earlier for the drive sprockets (?). 

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Since it was a visible part we decided to create our version of the spring using piano wire and micro solder, here is the result. We hope that with wash and dry brushing that it will look the part:

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In step 41 the photo etch bracket (part G19) can appear misleading as to its bending and location, fortunately AFV Club provides a image of the actual part mounted on the gun. 

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Another nice touch is the option to pose the turret side ports open or closed. In our situation we assembled the left side closed and the right open and the extra little PE provided makes a nice touch. Step 43 allows you to position the TC turret periscope covers in either the open or closed position too; we made ours open. Also, just an observation, the kit provides the flat and raised TC copula but for the Mk IV AFRE version is should be the flat version that is shown during assembly. As the build continues we find that there are numerous optional parts on the sprue, depending on the version your building so the builder will have spare parts for future builds when done. During this phase of the build we left off parts C18 and E28 to be painted separately. The turret is completed in steps 44-45. 

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By this point in the build the fording intakes and exhaust, completed track assemblies, along with the rear bridge gear reduction assembly and exhaust are already added. This is where the tank portion of the build will stop for paint. Just to give followers an idea of the progress Jarrod and I set the assemblies together for a couple photos:

Tank with turret and tracks
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Previous photo with track fenders, exhaust, and rear lift assembly added
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Next is the bridge which fell together easily, but we caution the builder to make sure your orientation of the large end cap (part U4) is correct (referring to the connection points both small and large) as that will impact your ability to keep the sections square and straight when combining them.

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And here is where we are at this moment, building the remaining three sections like this:

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Looking ahead, we were asked in another forum what Jarrod and I were going to use for the cabling for the bridge. While the kit provides some black thread that they instruct to paint steel, we are most likely going to go with an actual metallic thread (more on that later). 

Next update should have the bridge assemblies done with painting following shortly thereafter. Thanks for following, and as always comments, suggestions, and criticism are welcome.

Ben and Jarrod

"Everyones the normal until you get to know them" (Unknown)

LAST COMPLETED:

1/35 Churchill Mk IV AVRE with bridge - DONE

NEXT PROJECT:

1/35 CH-54A Tarhe Helicopter

 

  • Member since
    November 2009
  • From: SW Virginia
Posted by Gamera on Sunday, November 5, 2023 2:50 PM

You guys are making great progress! Darn shame about the bad instructions though. 

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

 

  • Member since
    May 2011
  • From: Honolulu, Hawaii
Posted by Real G on Thursday, November 2, 2023 6:20 PM

I'm definitely taking notes here, to help smooth the build when I get to mine!

“Ya ya ya, unicorn papoi!”

  • Member since
    May 2009
  • From: Poland
Posted by Pawel on Thursday, November 2, 2023 3:26 PM

Hello!

Lookin' very good, lots of nice detail here!

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
    June 2018
  • From: Ohio (USA)
Posted by DRUMS01 on Wednesday, November 1, 2023 6:31 PM

Thanks for the explaination CptnMac and now time for another update:

Time for steps 8-9 which is basically adding the front sprocket and finishing some of the pannier details.

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Right away in step 8, if you notice, they instruct you to remove two blocks on the drive sprocket cover. And it shows C11 with and without the blocks. This part of the instruction creates some issues. First is the challenge of removing the blocks without removing any other nut and bolt detail. Second, when removing the blocks you create ugly holes where the blocks were so now the holes need filled. Third, to fill the holes and smooth the panel there is a great chance of removing more detail on the part. Later in the build we were searching for another sprue, low and behold we found that they provided extra parts on sprue S to replace parts C11 and the corresponding part on the other pannier that already had those blocks removed. This means Jarrod and I didn't need to modify the drive sprocket cover (C11) at all and just use the updated parts on sprue "S".  :bash: 

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IMPORTANT NOTE: Study each parts tree and instruction carefully before the build. In the case identified above, the instructions did not identify an alternate part ("S"). If we would've studied the parts trees prior to beginning the build it would've made those modifications unnecessary. Of course, if the instructions were complete they would've listed the alternate parts instead of instructing us to cut on C11.

Step 9 will have you add the small details to the pannier. 

NOTE 2: The small bolt heads identified as M2 are added to both panniers around 12 on each side. We recommend the builder ream out or use a drill bit slightly larger than the bolt shaft to make it substantially easier to add the pin head size bolts using pin pointed tweezers.

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Steps 10-11 duplicate the same process on the other sides pannier.

In step 12 you complete the details on the panniers.

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NOTE: Parts B3 and B4 are extremely thin, small, and fragile but are connected to the sprue tree with four larger than necessary sprue connectors. The parts represent holders for the tow cable that go above the escape doors. During the removal process (with a sharp knife and a high quality sprue tool) I managed to break them and repair is not the best option. Our solution will be to replace them with custom shaped brass or PE parts. Speaking of PE parts, the bracket used to hold the track link to the pannier is PE. The instruction does not provide any detail on how it is folded and oriented on the pannier. After looking at the box art and several on-line photos we found that the track bracket is bent at 90 degrees into a "L" shape. The top of the "L" is oriented to the top on the pannier and on the corresponding two raised dots on the pannier. The track is then mounted by inserting the bracket through the bottom holes in the track, with the larger portion of the track in the upper position and against the pannier (refer to the previous photos).

Step 13 has finally come for Jarrod and I to add the panniers to the chassis floor, rear, and front armor plate. To ensure the chassis is square I added the rear chassis part first to the left pannier before adding the bottom of the chassis. This helped us keep the chassis floor at the right angle (square) between the panniers thus helping us keep the chassis assembly straight. It also helped us add the other pannier correctly. 

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The last part of step 13 is adding the weight to the rear of the chassis (to off-set the bridge). A quick trip to our local "Hobby Lobby" and I got some soap box derby lead weights. So the first question is how many ounces is 100 grams? Turns out to be a little more than 3.5 ounces.


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As you can see by the photo, we've managed to get quite a bit more done, specifically from step 13 all the way to step 23. So, lets just say that we've added the details to the rear (steps 14-15). We're not concerned with the ejection pin marks that you see on the lower track guide as it will be obscured by the track once installed.

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Built up the top of the chassis (step 16)

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Built up the front armor plates and rear engine cover, basically closing the tank chassis (steps 17-19). Before closing it up, Jarrod and I also glued the forward suspension to simulate the bridge load pulling the front of the tank down just a little.

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Next we added the front hinge brackets for the bridge to the tank (step 20). You may also notice that the machine gun is not in the mount in front as we are going to add it after painting. 

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Then Jarrod and I built up the exhaust and access handles (steps 21-22)

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Now Jarrod and I are working on step 23 which is the 73 track links per side using the AFV Club individual links. I don't have much to compare them to as I do not have any comparable metal links and this is out first AFV kit individual links. The instructions show two of the internal halves of the track links with one external link and arrows showing two of the three pieces being glued together. This is basically a process where one top and one bottom key together to capture the track pin molded in the inside half. Check out the engraved detail on each track link. I think it will look good on the exposed area of track by the turret. 


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The tolerances are quite tight but after you start a couple and identify the technique to insert the next external half without breaking any protrusions on either part the process is rather straight forward. All it takes is a couple small dots of CA cement between the two parts away from the hinge points and everything basically snaps in place. 

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The instructions will have you create 72-73 links per side, or 144-146 pieces per side, or 432 sprue connection points to trim per side. This is where a good precision sprue cutter will greatly reduce the trimming, but it is still a slog. And here is where Jarrod and I stopped today, at least one side is built. Oh, and we did test fit the completed set of tracks which fit perfectly in the guides and sprockets (yippie).

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I think we are going to build up the remaining sub-assemblies next (after the second track) so they will be ready for painting. Until next time, thanks for following and as always suggestions or comments welcome.

Ben and Jarrod

"Everyones the normal until you get to know them" (Unknown)

LAST COMPLETED:

1/35 Churchill Mk IV AVRE with bridge - DONE

NEXT PROJECT:

1/35 CH-54A Tarhe Helicopter

 

  • Member since
    November 2005
  • From: Formerly Bryan, now Arlington, Texas
Posted by CapnMac82 on Saturday, October 21, 2023 12:00 PM

DRUMS01
Perhaps one of you can tell me why "they" chose to call the right and left suspension boxes panniers?

I have this vague memory that the Brits were very concerned, during development of the Churchil, about rail line clearance, and required that various "bits" of tanks and similar venicles be designed to be removable.  All the better to clear tunnels and narrow rail bridges.

This was less of an issue in real life, as commerce dictated widening the rail line ROWs.  But, the notion of the track units being "hung" off the sides of the hull like luggage panniers from a pack horse or motorcycle remained.

Much in the same way that the original "naval" terminology for "tanks" was retained despite the need for obsfucation having long since passed.

But, it's early, coffee is only barely kicking in, and I've been wrong before.

  • Member since
    November 2009
  • From: SW Virginia
Posted by Gamera on Friday, October 20, 2023 7:49 PM

Yeah super cool choice in kits guys! I've built the AVRE version with the giant mortar but not the bridge- I don't remember any real problems with it but that was years ago... 

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

 

  • Member since
    May 2009
  • From: Poland
Posted by Pawel on Friday, October 20, 2023 2:52 PM

Yeah, that sounds interesting, I'll be watching! Good luck with your build!

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

www.vietnam.net.pl

  • Member since
    May 2011
  • From: Honolulu, Hawaii
Posted by Real G on Friday, October 20, 2023 2:24 PM

Ben,

I have this model too, as it was one of my "Grail" kit for many years.  Will be looking forward to seeing this get built!  I can't help but wonder if the bridge will hold in the upright position, as the parts seem very delicate.

“Ya ya ya, unicorn papoi!”

  • Member since
    June 2018
  • From: Ohio (USA)
1/35 AFV Club Churchill Mk IV AVRE with Bridge (D-O-N-E)
Posted by DRUMS01 on Friday, October 20, 2023 1:25 PM

I don't think I can fully explain it, as I was originally going to build a 1/35 Tarhe helicopter next, but this kit and subject kept pulling me to it, so..... 

My next kit build is a 1/35, AFV Club, Churchill AVRE with Small Box Girder (SBG) Bridge. 

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First off, I had no idea that the Churchill tracked platform was used / converted into well over 10 different configurations, not including the original tank. While that to me is impressive in itself, I heard good reviews of this kit, so here goes.

DESCRIPTION:

The Tank, Infantry, Mk IV Churchill was a British infantry tank used in the Second World War, best known for its heavy armor, large longitudinal chassis with all-around tracks with multiple bogies, its ability to climb steep slopes, and its use as the basis of many specialist vehicles. It was one of the heaviest Allied tanks of the war. The origins of the Churchill's design lay in the expectation that war in Europe might be fought in conditions similar to those of the First World War, and thus emphasized the ability to cross difficult ground. After several marks (versions) had been built, a better-armoured specification, the Mark VII, entered service with the British Army. The improved versions performed well in the later stages of the war. The Churchill was used by British and other Commonwealth forces during the North African, Italian and North-West Europe campaigns. In addition, 344 Churchills were sent as military aid to the Soviet Union during the Second World War and more than 250 saw active service on the Eastern Front.

DESIGN:

The hull was made up of simple flat plates, which were bolted together in earlier models and were welded in later models. The hull was split into four compartments: the driver's position at the front, then the fighting compartment including the turret, the engine compartment, and the gearbox compartment.[19] The suspension was fitted under the two large "panniers" on either side of the hull, the track running over the top. There were eleven bogies either side, each carrying two 10-inch wheels.[20] Only nine of the bogies normally took the vehicle weight, the front coming into play when the vehicle nosed into the ground or against an obstacle, the rear acting in part as a track tensioner. Due to the number of wheels, the tank could survive losing several without much in the way of adverse effects as well as traversing steeper terrain obstacles. As the tracks ran around the panniers, escape hatches in the side could be incorporated into the design. These were retained throughout the revisions of the Churchill and were of particular use when the Churchill was adopted as the Armored Vehicle Royal Engineers (AVRE). The Churchill AVRE was a Churchill III or IV armed with a spigot mortar demolition weapon which replaced the 6 pounder gun. The effective range of the 230mm high-explosive "flying dustbin" round was only around 80 yards of 230 yard maximum range. Crew was increased to six to accommodate a demolition NCO in addition to driver, commander, gunner, wireless operator, and co-driver/machine gunner. As well as the mortar ammunition it carried "General Wade" 26 lb explosive charge, and "Beehive" charges of up to 75 lbs of explosive. Both types of charge had to be set manually, but could be detonated from the relative safety of the AVRE interior. The AVRE could be fitted to carry different combat engineering equipment.

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NOTE: The above information was provided by Wikipedia and the images from AFV Club.

MODEL KIT:

While many 1/35 armor kits boxes are normally 2-2.5 inches tall, this kit is as tall as it is wide (around 5 inches). So to answer everyones first question, YES, this kit has a lot of parts. This mutli-media kit consist of over 500 parts (excluding the bridge) in the usual green plastic with a further 15 clear plastic parts, 29 etched parts, 24 steel suspension springs, a length of thread, and for the first time from AFV for this kit, individual track links. Added to this is the decal sheet, 20 page instruction sheet and the now standard poster with just the box art image of the Churchill MK.III AVRE to add to the collection (as seen in the first image above).

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The kits mold quality and details are very good. It is basically the previously molded kit with the upgrade of individual track links versus the rubber belt in previous editions. It also contains a new tooling assault bridge, A-frame legs, pulleys, steel girder gearbox. Other detailed parts include petard mortar, armour plates, metal-sprung suspension system and a choice of markings for 5 Assault Bridge Units (ABG). Along with the out of box kit I also purchased a crew from MiniArt and resin storage from Resi-Cast.

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The instructions appear to be well made with clear images and call-outs. Inside the first page is a color chart to aide in detailing the build.

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The first 13 steps all revolve around building the right and left panniers. 

THE BUILD:

Steps 1-2 begins with the drilling out of numerous holes. With this kit used for several different variants of the Churchill the holes they specify in step 1 is for the Mark 4 (Mk IV) AVRE. Step 2 is all about adding the metal spring suspension on both panniers. Perhaps one of you can tell me why "they" chose to call the right and left suspension boxes panniers? 

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When removing the first parts I began to see both flash and mold seams, though small (see below). This means care is needed on every mating surface as well as exposed areas. Some flash though minimal is also found throughout parts of the kit.

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The center seam on each pannier is noticable where the springs are attached. The good thing is that the seam will be hidden when the remaining suspension is added. The other mating surfaces fit very well with no seams or ejection pin marks visible. 

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IMPORTANT 1: The instructions imply (by the arrows) that the springs are glued to the suspension box, but don't do it! They can be inserted into one side/half of the pannier and the springs will hold them in place while you add the other side. What we are going for is a working suspension. Be careful not to add cement to the inner spring locations when assembling both sides.  

IMPORTANT 2: Be very careful with the orientation of the springs as one side is offset. The instructions show both sides with the same orientation but that will be a problem when adding the lower suspension arms. If you DO NOT glue the springs that will not be a problem as you can turn the center spring shaft to whatever orientation you need for each side. 

Here is a pannier with the springs assembled.

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Before getting to far into this build I should note that Jarrod initially appeared to have no interest in helping his dad with this build, but once I started he insisted he help just to ensure Dad gets things done right (smile). So here we go....

Steps 3-5 assemble the lower suspension boxes including the individual arms for the 11 road wheels per side. 

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After working with larger scale models recently this part of the build required my full attention. While it appears to be a part heavy assembly (and it is), the build process was straight forward. Careful trimming and clean edges are very important in step 4 when adding the individual cross members to the suspension box. There are slight reliefs in each side to guide the positioning but care is needed to ensure the cross bracing is at a right angle with D1 and D2 as that is needed to properly attach the other side. I kept verifying the assembly angles with a straight edge.

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If you look close in step 4, it indicates not to glue the suspension arms. We found that funny considering they instructed the builder to cement the springs in place during step 2. If you glues the springs in step 2 it wouldn't have mattered if the suspension arms were glued in step 4. So, if you took heed to our earlier note regarding the springs you will have a functional spring suspension when finished. To ensure the box assembly retained its cemetery we added each suspension arm and glued its cross brace to the other side before proceeding to the next arm. The flexibility of the unglued side made this process easy. Upon completion of step 4 you will have a sturdy lower suspension box. 

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Step 5 has Jarrod and I add the completed suspension boxes to the pannier and spring subassembly. We recommend the builder test fit the assemblies to ensure the spring mount orientation is correct with the suspension arms. This will help when attaching the two assemblies. The bottom portion of the pannier has very slight raised guides to assist the builder in adding the box suspension correctly. Once again Jarrod and I chose to add each subassembly incrementally by spot gluing a couple attachment points at a time to ensure the assemblies align properly. We have to say that the nicely molded parts definitely makes this suspension process much easier than it could've been.

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Step 6 will have Jarrod and I add the road wheels to the suspension arms and springs. If we did our due diligence in removing any flash on both points this should be fairly easy, then we noticed the attachment point of the axle shaft to the single road wheel which was not much larger than a pin head. To complicate the process the end of the axle and the hole inside the road wheel have corresponding key slots though I'm not sure why (?). Perhaps it was engineered into the kit to increase the difficulty of a clean and straight bond (smile). Because of the very small margin for error, make sure the road wheel with the axle is fully inserted through the arm and spring. Jarrod and I managed to get them all attached correctly and without gluing any of the moving parts erroneously. 

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NOTE: Each suspension unit consisted of a bracket, frame, axle, wheels and springs. With the introduction of the Mk VII the suspension was strengthened by replacing the tie plate between units 2 and 3 with a welded plate producing a combined suspension unit.This change was also retrospectively applied to some earlier Mks, especially those in service as AVREs, Bridge layers and ARVs which were required to carry heavier loads. Looking at this model kit it appears that AFV Club got this detail right!

In Step 7 we build up the sides of the hull then add the pannier assemblies. Prior to adding the pannier the drive sprocket is added. The instructions show a retaining sleeve added between the two sprocket halves. The problem in our build was that the kit did not supply these parts (T3).

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Upon numerous inspections and inventory Jarrod and I confirmed that the retaining sleeves (T3) were not in the kit. To solve the problem we went to out spares and plastics bin. After cutting the hollow extruded plastic to the proper length we added them and closed the drive sprocket with the outer part. Once the drive sprocket assembly was complete Jarrod and I added it to the side(s) of the hull. We waited to add the front track guides until the panniers and the hull were together to help us align the guides (as there were no pins to aides). And that completed step 7, so far so good.

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Thanks once again for following along. your comments are encouraged. Till next time!

Ben and Jarrod

"Everyones the normal until you get to know them" (Unknown)

LAST COMPLETED:

1/35 Churchill Mk IV AVRE with bridge - DONE

NEXT PROJECT:

1/35 CH-54A Tarhe Helicopter

 

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