tanks/vehicles Variants of M19

[Abrams_X 1,234]

Variants of M19 SPAAG

 

T21 75mm Recoilless rifle mounted version

 

Quote

Although the installation of the recoilless rifle and mortar on the M37's machine gun mount was impractical, it was desirable to provide a suitable motor carriage for recoilless weapons. In June 1945, the Director of the Ordnance Research and Development Center at Aberdeen Proving Ground proposed the installation of a full battery of four 105mm recoilless on a suitable vehicle. Since there were no 105mm recoilless rifles immediately available, four T21 75mm recoilless rifles were selected and installed on a modified twin 40mm gun motor carriage M19. The 40mm guns were removed and replaced by the recoilless weapons on the modified M12 mount.

-Stuart, A history of American Light Tanks, R.P. Hunnicutt

This vehicle is armed with 4x 75mm T21 Recoilless rifles, not sure how much ammo can be carried.

other specifications are same with M19 SPAAG.

Ammunitions

 

Spoiler

 

 

HE M309A1

Complete round

Weight-22.37 lb or 10.147 kg

Length-28.92 in. or 73.457 cm

Projectile weight: 14.40 lb or 6.5 kg

Muzzle velocity-990 fps or 301.752 m/s

Maximum range-6960 yd or 6364.224 m

Explosive filler-TNT, 1.49 lb or 0.676 kg

 

Spoiler

HEAT-T M310A1

Complete round

Weight-21.06 lb or 9.553 kg

Length-28.92 in. or 73.457 cm

Projectile weight: 13.10 lb or 5.94 kg

MV-1000 fps or 304.8 m/s

Maximum range-7300 yd or 6675.12 m

Explosive filler-Comp B, 1 lb or 0.454 kg

 

Spoiler

HEP-T M349

Complete round

Weight-16.52 lb or 7.493 kg

Length-26.36 in. or 66.954 cm

Projectile weight: 8.5 lb or 3.86 kg

MV-1400 fps or 426.72 m/s

Maximum range-7180 yd or 6570 m

Explosive filler-Comp A3, 2.55 lb or 1.157 kg

 

Spoiler

WP M311A1

Complete round

Weight-23.20 lb or 10.523 kg

Length-28.92 in. or 73.457 cm

Projectile weight: 14.82 lb or 6.7 kg

MV-990 fps or 301.752 m/s

Maximum range-6960 yd or 6364.224 m

Explosive filler-White Phosphorus, 1.35 lb or 0.6 kg

 

Background history is same as above.

Quote

The test firing at Aberdeen proved to be successful and it was recommended that the development program continue using T19 105mm recoilless rifles when they became available. The 105mm installation was completed in 1946 and evaluated at Aberdeen. However, now that the war was over, no additional M19s were converted.

-Stuart, A history of American Light Tanks, R.P. Hunnicutt

Same as T21 mounted version, but only the gun is different. it has 105mm T19 recoilless rifle. which is later designated as M27 recoilless rifle.

Available ammunition

Spoiler

HE M323

Complete round

Weight-48.59 lb or 22 kg

Length-40.72 in. or 103.4 cm

Projectile weight: 32.4 lb or 14.7 kg

MV-1120 fps or 341 m/s

Maximum range-9367 yd or 8565 m

Explosive filler-TNT, 4.38 lb or 1.99 kg

 

HEAT M324

Complete round

Weight-40.71 lb or 18.5 kg

Length-46.0 in. or 116.84 cm

Projectile weight: 29.3 lb or 13.3 kg

MV-1250 fps or 381 m/s

Maximum range-9280 yd or 8485.6 m

Explosive filler-Comp B, 3.06 lb or 1.39 kg

 

Spoiler

HEAT M341

Complete round

Weight-37.10 lb or 16.8 kg

Length-41.88 in. or 106.4 cm

MV-1650 fps or 503 m/s

Maximum range-3000 yd or 2743.2 m

Explosive filler-Comp B, 2.38 lb or 1.08 kg

 

HEP M326

Projectile

Weight-24.8 lb or 11.25 kg

MV-1328 fps or 405 m/s

 

WP M325

Complete round

Weight-50.75 lb or 23 kg

Length-40.78 in. or 103.6 cm

Projectile weight: 34.6 lb or 15.7 kg

MV-1120 fps or 341 m/s

Maximum range-9367 yd or 8565 m

Explosive filler-White Phosphorus, 4.06 lb or 1.84 kg

 

T22 75mm anti aircraft gun mounted version.

Quote

 On 1 February 1945, OCM 26544 recommended the development of a self-propelled mount for the 75mm gun T22. This weapon was intended for use as an antiaircraft gun at short to medium ranges using the new radio proximity fuze. At that time, the 75mm projectile was the smallest that could be fitted with such a fuze. The 75mm gun T22 was installed on the mount T18 with a recoil operated loader-rammer. Using this arrangement, the gun was designed to fire automatically at a rate of 40 to 45 rounds per minute.

 The Chassis of the twin 40mm gun motor carriage M19 was selected for the installation of the T22 gun and the T18 mount. the mount for the dual 40mm gun was removed and an adapter ring was used to install the T18 mount.

 Tests at Aberdeen Proving Ground ran from February 1946 to June 1948. Problems with the loader-rammer made it extremely difficult to obtain automatic fire and then only when the gun was in a horizontal position. This may have been fortunate since it was determined that the natural frequency of the vehicle suspension was approximately the same as the firing rate of the automatic cannon. Needless to say, this would have resulted in destructive vibration during automatic fire. Further tests with M19 chassis were discontinued, but the experience was useful during the development of the postwar Skysweeper antiaircraft gun.

-Stuart, A history of American Light Tanks, R.P. Hunnicutt

I don't have any information about this. I will find it and add it ASAP.

If anybody have data of it and not mind please share.

Ammunition for T22 antiaircraft gun

HE-VT shell M48E2

Weight 6.78 kg

MV 701 m/s

 

Sources

Stuart, A history of American Light Tanks, R.P. Hunnicutt

Engineering design handbook: Recoilless rifle weapon systems, Army Materiel Command Alexandria, Virginia, 15 Jarnuary 1976

TM43-0001-28

Table Of Form Factors Of Projectiles

TM 9-1300-203, Artillery Ammunition (1967)

Edited November 9, 2018 by MuhAbroomz
adding more info

[leroyonly 4,310]

Open for discussion. 

[Abrams_X 1,234]

6 minutes ago, leroyonly said:

Open for discussion. 

Thanks

 

[FaafVonFasslich 218]

The T21 with the 75mm RRs would be a fun little addition to mid tiers. I don´t see a place for the T22 though, since the playstyle would probably quite equal to the Ontos and would be at a similar BR, which is why I don´t think we really need it in the TT or as a Premium

[Admiral_Aruon 2,264]

oh my god. M19s that don't suck!? hell yes for all 3!

 

all 3 are kind of impractical considering RRs just kind of suck in general, but being able to go nuts with a bunch of RRs would make for some fun gameplay. and since the M19 is so light to begin with, its ability to scoot and shoot will be great.

[Milocat 4,848]

I'd definitely like to see the 75mm-armed one.  It could be the American answer to the Flaktrak or 29-K. 

 

Can't really comment on the recoilless rifle vehicles since I don't have any experience with those weapons in tank games yet. 

 

So +1 for sure, tentative +3.

[Bountyhead 83]

+1 for all of them

[EXTOR_9 711]

It looks cool, it attracts my attention, I give +1.

[Borotovas 4,500]

+1

[Abrams_X 1,234]

Ammunition info for 105mm Recoilless rifle M27 and 75mm antiaircraft gun T22 have been added, take a look and please support my suggestion!

[Tasty95215 2,099]

Is there any information for the penetration of the 75mm HEAT-T M310A1, 105mm HEAT M324, or the 105mm HEAT M341?

[Abrams_X 1,234]

18 minutes ago, Tasty95215 said:

Is there any information for the penetration of the 75mm HEAT-T M310A1, 105mm HEAT M324, or the 105mm HEAT M341?

M310A1: 91/78/45 mm

M324: 127/109/63 mm

M341: 381/330/190 mm

[Solarmod 1,203]

I need it.

[KOISHI_KOMEIJI 194]

YES YES YES

[Jarms 1,556]

For more minor alterations there’s the:

 

- M19 with turret .50 cal:

 

 

 

 

 

 

 

 

[hienapunk 1,064]

Ok but the 75 auto version would be fun as an American baby bandkanon

[ACOMETS 977]

We have a HEVT round? He yeah , no redding enemy engine and dying instantly because a 13 mm shot your ammo twice ,once in right ,once in left side.

[hienapunk 1,064]

The automatic 75mm with proxy rounds would be a fantastic mid tier aa. Everything the US has after the dakka halftracks until the m163 kinda sucks.

[EXTOR_9 711]

1 hour ago, hienapunk said:

The automatic 75mm with proxy rounds would be a fantastic mid tier aa. Everything the US has after the dakka halftracks until the m163 kinda sucks.

True, true. The gap between M42 and M163 is a painful one.

[hienapunk 1,064]

5 hours ago, EXTOR_9 said:

True, true. The gap between M42 and M163 is a painful one.

Bruh that gap between m16 and m163 is painful 

Edited May 19, 2022 by hienapunk

[EXTOR_9 711]

23 hours ago, hienapunk said:

Bruh that gap between m16 and m163 is painful 

Open top ammo rack simulator.

[hienapunk 1,064]

1 hour ago, EXTOR_9 said:

Open top ammo rack simulator.

 

Honestly I intend to use the m16 as my us aa until I get to 8.0 and the m163

[CokeSpray 7,272]

Suggestion passed to the developers for consideration.