The V2 project

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Phil Woollard
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Re: The V2 project

Post by Phil Woollard »

The control room now has doors, I have decided to make the control quadrant view selectable. When the entire rocket body is removed and the internal details are on view obviously everything can be seen from any angle, when the V2 has its outer airframe installed and is attached to the trailer the internal detail views are compromised, so Ive added a "lazy Susan" bearing this being the very same bearing used by Armortek for the turret traverse just a lot smaller, this enables any of the control quadrant sections to be selected by simply rotating the whole thing by increments of 45/90 degrees, all held by an indent pin. The bearing is so robust it will happily operate in any orientation.
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Rolf Mönke
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Re: The V2 project

Post by Rolf Mönke »

a very interesting and successful part.
Greetings from Hamburg

Rolf

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Michael Cecil
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Re: The V2 project

Post by Michael Cecil »

Hi Phil,

If you have not already, you will find 20 files listed by the National Archives of Australia on the V2 including one on the Videlwagen trailer. Several are digitised and can be viewed online, and there are several images on line as well.

https://recordsearch.naa.gov.au/SearchN ... sting.aspx

The above link will give you the list of files. You can click on the icon in the 'digitized item' column to view the file. Might provide you with some interesting images and reading.

Great job you are doing. I was fortunate to spend many hours examining the V2 at the AWM in Canberra (pictured earlier in this thread on the Meilwerwagen), and recovering the remains of another example from the RAAF Museum and moving what was left back to the AWM.

Will you be replicating the spring loaded door and the big, rectangular multi-pin electrical connecting plug into the control room quadrant? The cable connected the V2 to the armoured command vehicle. The plug was electro-magnetically ejected once the rocket was fired, and the spring-loaded door slammed shut for the flight. The process is visible on the Backfire Report footage.

An interesting aspect of the V2's construction was the use of chicken wire fencing to hold the insulation wrapped around the fuel tanks. I suppose it didn't matter what was used - it just had to be expendable.

Mike

Phil Woollard
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Re: The V2 project

Post by Phil Woollard »

Fascinating subject Mike, I envy you getting so close and involved. My love of rocketry and anything "off World" compels me to learn more, quite simply we would not have walked on the Moon (so soon any way) without this weapon system and its creator.

You will have to help with a closer link to the info please, as I cant navigate the research site from my end. Any photos of the more interesting and detailed aspects of the rocket and its systems would be gratefully received, there seems to be little that is under copyright (unless Pinterest get hold of the files that is).

I would like to add the electromagnetic coupling and the hatch, certainly the hatch, along with all the myriad of openings around the rest of the airframe to facilitate access to the systems prior to a launch. This will help me expose the internal detail when its all together and being exhibited at shows.

Using the chicken wire to hold the fuel tanks insulation in place has crossed my mind, if I add the insulation it would be correct but it would cover much of the fuel tanks detail, so for now I will omit that material although I do have it in stock.

"Operation Backfire" has been the best resource archive so far for me but theres always new snippets that come to light when searching daily on the Net.

With all the associated "cool" vehicles involved in a launch I feel theres maybe something for everyone reading this thread, tracked and wheeled!

Regards Phil.
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e308c516b4b0590f0b4aa58381957da2--rockets-wwii.jpg
e308c516b4b0590f0b4aa58381957da2--rockets-wwii.jpg (75.66 KiB) Viewed 6657 times
backfirenov17-002.jpg
I am in the process of covering the whole thing in aluminium to try and replicate that slightly rippled effect of the thin material used for the airframes outer skin.
I am in the process of covering the whole thing in aluminium to try and replicate that slightly rippled effect of the thin material used for the airframes outer skin.
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Michael Cecil
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Re: The V2 project

Post by Michael Cecil »

Hi Phil,

I just tried the link and found it had gone to a timed-out default. Sorry - didn't realise that would occur.

So, to overcome that, use the link.
On the 'timed out' screen, click 'guest'.
The basic search screen will come up.
Type in V2 Rocket in the search box, and the 20 files will list on your screen. (leave the date range blank).

If that doesn't work, I'll take you through from the 'recordsearch' front screen.

The wrinkle effect of the outer skin is evident on everything except the warhead, which is a solid steel casing. I wonder how much drag such a wrinkled skin produced during flight, given the incredible speed the V2 got up to?

Regards

Mike

Phil Woollard
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Re: The V2 project

Post by Phil Woollard »

Mike I'm in, and there's some great detailed photos from the evaluation studies, many thank for the link regard Phil
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Phil Woollard
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Re: The V2 project

Post by Phil Woollard »

Just in case you guy's think that I am slacking right now, a few photos of the Vidalwagen parts, most of the big stuff is there but lots of small fittings to make by hand.I need to draw the whole Vidalwagen onto the lining paper, then work off that.
I have a broken floating rib to keep my mind somewhat focused at present! :cry: ...Phil.
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DSC_1604.JPG
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The 1/35th spru used for scaling the 6th parts
The 1/35th spru used for scaling the 6th parts
DSC_1608.JPG
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Phil Woollard
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Re: The V2 project

Post by Phil Woollard »

I'm going to pop this Protze rc conversion thread in with the V2.
I may use the Protze for V2 towing duties, most certainly it will be a part of the video and used along side my other Armortek vehicles, although I have not come across any evidence of the vehicle being used along side the V2 I am sure it was involved somewhere no doubt.
It's all metal with loads of tin bashing involved, no where near as well made as a similar vehicle from Armortek but it has a certain charm non the less.
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Not a pretty vehicle but it does grow on you.
Not a pretty vehicle but it does grow on you.
This is what I have planned and I have already made a start.
This is what I have planned and I have already made a start.
Bundesarchiv_Bild_146-1993-039-08,_Krupp_1,5-Tonner_('Krupp-Protze').jpg (92.64 KiB) Viewed 5901 times
Very simple robust construction but all that is going to change!
Very simple robust construction but all that is going to change!
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A reasonable amount of engine and engine bay details
A reasonable amount of engine and engine bay details
Most of the work will be back here converting the rear to independent ladder suspension with all four rear wheels being driven.
Most of the work will be back here converting the rear to independent ladder suspension with all four rear wheels being driven.
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Phil Woollard
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Re: The V2 project

Post by Phil Woollard »

Just a snippet of the progress. I am using a centre differential between the axles as I can not find a bridge axle/diff to transfer the drive through to the rear axle/diff in a robust enough scale (plenty in 1/16), so I will need to get the drive from a single large motor to the centre diff large gear by passing the drive through the suspension arms, it will be tight, an alternative would be to use two smaller motors either side of the centre diff with no need for propeller shafts.
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Deconstruction
Deconstruction
I need to replicate this lot, I found a very nice chap with an ebay shop (Dave Stubbs) that has supplied me with most of what I need, Dave has supplied Armortek in the past with parts and has been a font of knowledge.
I need to replicate this lot, I found a very nice chap with an ebay shop (Dave Stubbs) that has supplied me with most of what I need, Dave has supplied Armortek in the past with parts and has been a font of knowledge.
It's as close to a 1/6th Protze as I can get using 1/8th off road crawler/buggy parts
It's as close to a 1/6th Protze as I can get using 1/8th off road crawler/buggy parts
Centre diff will need cutting down, I would like to use the disc brakes but not sure if I can just yet.
Centre diff will need cutting down, I would like to use the disc brakes but not sure if I can just yet.
Using 2 pairs of suspension carriers top and bottom it looks fairly close to the original. Well as close as i'm going to get.
Using 2 pairs of suspension carriers top and bottom it looks fairly close to the original. Well as close as i'm going to get.
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I would like to use decent Armortek hubs and wheel centres as these wheels are proving problematic.
I would like to use decent Armortek hubs and wheel centres as these wheels are proving problematic.
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florian rudolf
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Re: The V2 project

Post by florian rudolf »

It looks nice Phil, but you need a Famo for towing the V2 :D

Phil Woollard
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Re: The V2 project

Post by Phil Woollard »

Thanks Florian, I do have another just got to spend 3 months putting it all together! :)
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Phil Woollard
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Re: The V2 project

Post by Phil Woollard »

There is a problem with uploading photo file attachments to the site, it just won't complete the task! I think we have experienced this before. :? Very small files will load so the quality of these photos is compromised some what.
I do have Armorteks blessing with this Protze conversion so please feel free to add any constructive comments if you wish guys?
I'm always a bit apprehensive with these conversions as some can look pants but I'm very pleased with the results so far, so I shall now invest further with sound and a decent rc set up.
Soon it will be the time to de grease and apply the grey primmer to everything!
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Iv'e used quality Armortek wheels and hubs which are slightly smaller in diameter than the stock model used but more like the original Protze size although there where many different tyre types used. I think I need to remove the Dunlop logo with my power file.
Iv'e used quality Armortek wheels and hubs which are slightly smaller in diameter than the stock model used but more like the original Protze size although there where many different tyre types used. I think I need to remove the Dunlop logo with my power file.
This amount of travel should look very convincing on video and as all 4 wheels are totally independent of each other the traction/grip should be impressive.
This amount of travel should look very convincing on video and as all 4 wheels are totally independent of each other the traction/grip should be impressive.
This shot shows around 25 mm of upward travel with another 20 mm of deflection available, plus the negative of maybe 30 mm, so plenty of travel . Notice how that cross head suspension pivot bolt stands out, that will need changing!
This shot shows around 25 mm of upward travel with another 20 mm of deflection available, plus the negative of maybe 30 mm, so plenty of travel . Notice how that cross head suspension pivot bolt stands out, that will need changing!
A small coil spring tucked away under the body allows for some fine adjustment of the ride height of each of the suspension assemblies
A small coil spring tucked away under the body allows for some fine adjustment of the ride height of each of the suspension assemblies
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Phil Woollard
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Re: The V2 project

Post by Phil Woollard »

An update on the front axle and suspension and steering set up. Bending that U channel by hand to form the chassis rails was a bit challenging.
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I'm using Armortek quad suspension parts for the front end of this build, and as the Protze is a tad lighter I have left out 2 leafs on either side, which I may have to put back in after the motor and gear box is fitted.
I'm using Armortek quad suspension parts for the front end of this build, and as the Protze is a tad lighter I have left out 2 leafs on either side, which I may have to put back in after the motor and gear box is fitted.
There's nothing on this earth that is more awkward than constructing a front axle and steering set up from scratch!
There's nothing on this earth that is more awkward than constructing a front axle and steering set up from scratch!
I won't be using this motor it's just to see where the drive train will go, I have another motor with a step down gear box on order, this will give me around 500 rpm max motor speed ( so a lot less at a sensible speed input) before we get to the centre diff pinion and large gear options, and then a further reduction at the axle diffs of 4:1 .
I won't be using this motor it's just to see where the drive train will go, I have another motor with a step down gear box on order, this will give me around 500 rpm max motor speed ( so a lot less at a sensible speed input) before we get to the centre diff pinion and large gear options, and then a further reduction at the axle diffs of 4:1 .
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Chassis almost complete, when I fit the motor and drive shafts I can then add the various cross members.
Chassis almost complete, when I fit the motor and drive shafts I can then add the various cross members.
The all important leaf spring pivot hanger, thanks to Monique for your patience when I was ordering those a while back for the Vidalwagen trailer.I now need to order some more.
The all important leaf spring pivot hanger, thanks to Monique for your patience when I was ordering those a while back for the Vidalwagen trailer.I now need to order some more.
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I shall use a linear actuator for the steering
I shall use a linear actuator for the steering
I have the ride height right first time, although I have allowed for a bit of suspension sag. It's very bouncy so will need dampers of some kind, I was thinking of making some of the old fashioned friction plate type dampers.
I have the ride height right first time, although I have allowed for a bit of suspension sag. It's very bouncy so will need dampers of some kind, I was thinking of making some of the old fashioned friction plate type dampers.
Last edited by Phil Woollard on Wed Mar 13, 2019 9:43 pm, edited 1 time in total.
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Liam Mahoney
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Re: The V2 project

Post by Liam Mahoney »

Hi Phil
Another very interesting build and some nice solutions. One thing I noticed, is the Ackerman on the steering knuckles a little close to the front axle? It looks very short?
Keep posting, it’s always good to follow your exploits


Thanks
Liam

Phil Woollard
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Re: The V2 project

Post by Phil Woollard »

Hi Liam, that ackerman angle is a bit tight, I believe it is normally calculated from the rear axle centre point, how does having two rear axles affect the angle or does it have no effect? Regards Phil 8)
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