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HSTV-L

42.2k dekanii  one month ago

High Survivability Test Vehicle - Lightweight


"fast APFSDS slinger"


Updates:

V.1.1
- Tweaked Gunner and TC periscope sight's scale because the original one often gets stuck, also tweaked the gunsights of each sights
- Updated M2HB with more decorations
- Removed some.. tiny details on the HSTV-L

V.1.2
- Added a code where it's supposed to move the wheels according to Trim level, at which i have forgotten to add in.. silly me XD

V.1.3
- Updated FT code


  • The High Survivability Test Vehicle - Lightweight (HSTV-L) was a U.S. Army light tank manufactured by AAI Corporation. It was developed under the Tank-automotive and Armaments Command (TACOM) Armored Combat Vehicle Technology (ACVT) program.

  • In early 1977 the Army selected proposals from AAI and Pacific Car and Foundry for HSTV(L) concept feasibility analysis. In December 1977, the Army awarded the HSTV(L) fabrication contract to AAI. One reported early challenge was meeting the HSTV(L)'s weight target. As of September 1981, no significant problems were reported with the HSTV(L).

  • Martin Marietta expressed interest in a joint venture with the AAI Corporation to enter a version of the HSTV-L into the U.S. Army's Armored Gun System competition. The corporation apparently decided that the technology was not sufficiently advanced to proceed with radical changes in the HSTV-L to meet the new AGS requirements, therefore, they did not bid on the program.

  • The AAI HSTV(L) is powered by a Avco Lycomming 650hp gas turbine (derived from the LTS101). It is connected to an automatic 4-speed X-300 transmission made by Detroit Diesel Allison, the turbine being placed behind the transmission. It used a fixed height hydro-pneumatic suspension system and tracks modified from those used on the M551 Sheridan.

  • The main armament consisted of an Ares Incorporated XM274 75 mm CTA autocannon with 2-axis stabilization capable of firing Armour-piercing fin-stabilized discarding sabot and high-explosive. Secondary armament consisted of a coaxial 7.62 mm M240 machine gun and a commander's M240. AAI had originally planned to place a .50 caliber (12.7 mm) heavy machine gun at the commander's hatch.

  • The AAI HSTV(L) had an unconventional crew layout, with the commander located in the turret, and the driver and gunner being located in the hull. The commander had access to a 2-axis stabilized hunter sight produced by Texas Instruments that was independent of the turret and allowed him to freely locate targets, and then slave the turret to his sight. The gunner would then engage the target while the commander looked for the next target. Both the gunner's sight and commander's hunter-killer sight were 2-axis stabilized, had both direct vision and FLIR optics, and with the gunner's sight having access to a CO2 eye safe laser rangefinder made by Raytheon. Any crewmember could use the armament as both the hunter-killer sight and gunner's primary sight were available through a tv screen mounted at each crew station, but only the gunner and driver could drive. there was also a fixed rear view tv camera to help with reversing.

Note:

  • Testbed for advanced FCS that I made by myself (its just a bunch of codes put together)

  • No interior for this build, this is just a stop-gap build just so yall know that im still "alive" and not "dead"

  • Damn who knows FT wizardy could be very hard to master, i have trouble fixing the FCS for about four hours


Controls:

(FCS information available in game instructions)

Trim/Yaw: Tank Control
Pitch/Roll: Turret Control
VTOL: Adjust Ride Height


AG1: FLIR
AG2: Precision Mode
AG3: Slave turret to TC sight
AG4: Ammo Switch (APFSDS-HE)
AG5: Override FCS
AG7: Headlights
AG8: Lock Turret Controls


Armaments:

75mm ARES XM274 Autocannon
- 60x rounds
- 30x XM885 Delta 1 APFSDS-T
- 30x XM886 HE-VT

1x .308 cal M240
- 2500x rounds

1x .50 cal M2HB Browning
- 600x rounds


lol

Spotlights

General Characteristics

  • Successors 1 airplane(s) +28 bonus
  • Created On Android
  • Wingspan 11.8ft (3.6m)
  • Length 31.1ft (9.5m)
  • Height 12.2ft (3.7m)
  • Empty Weight 43,531lbs (19,745kg)
  • Loaded Weight 44,843lbs (20,340kg)

Performance

  • Wing Loading N/A
  • Wing Area 0.0ft2 (0.0m2)
  • Drag Points 2863

Parts

  • Number of Parts 349
  • Control Surfaces 0
  • Performance Cost 1,821
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  • Profile image

    Spookston has been sent to your location.

    Pinned one month ago
  • Profile image
    42.2k dekanii

    @TateNT34 I already have plans for these tanks that you mentioned, quite the coincidence

    14 days ago
  • Profile image
    6,582 TateNT34

    MBT-70/XM-803/XM-8003 next?? (They are all close to the same thing)

    +1 15 days ago
  • Profile image
    4,465 Wiz

    @dekanii the "amp" only appeared when I added the code bracket.

    20 days ago
  • Profile image
    42.2k dekanii

    @Wz uh huh.. neither I know what that is..

    20 days ago
  • Profile image
    4,465 Wiz

    @dekanii idk I just copied your turret traverse code.
    ( ͡° ʖ̯ ͡°)

    21 days ago
  • Profile image
    42.2k dekanii

    @Wz thanks for the extra help, I'll add most of the FT you mentioned, except for the camera activated MG
    .
    now I have some question, what does the "amp" on the first code you mentioned is for?

    21 days ago
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    4,465 Wiz

    @dekanii just noticed that the roof top HMG is supposed to be controlled by the commander sight that's calibrated for the hull while the MG isn't. A simple solution is to directly plug the turret aiming code into the roof MG's traverse rotator to cancel it out
    For example : yw/180 - (TargetSelected & -Activate5 ? (Activate4 ? trt2 : trt) : (Activate3 & sight=true ? yw/180 : 0) + (Activate3 & sight=true ? 0 : sum(Roll*(Activate2=true ? .02 : .3)) + -Heading/180)) and remember to give that rotator shortestAngle = True too if that's what you want.

    Update :
    You could also set each Mg to only fire while the camera is active with the variable setters so that when you're firing the main coaxial mg, the roof mg wouldn't randomly shoot at nothing, vice versa.
    roofTop Mg : activationgroup = sight ? 1 : 0
    coaxial Mg : activationgroup = sight ? Activate3 : 1
    also set it to the same speed as the turret traverse

    +1 21 days ago
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    42.2k dekanii

    @Wz thank you so much for that information, I'll update this soon
    UPD: its been updated now, again thanks for that

    21 days ago
  • Profile image
    4,465 Wiz

    The turret jointRotator is missing shortestAngle = True if added, the turret will take the shortest angle to the desired input ignoring the Rotator's limit.

    +1 21 days ago
  • Profile image
    6,582 TateNT34

    Hey it’s the spooksmobile

    +1 22 days ago
  • Profile image
    570 Ghifar

    @dekanii ok

    +1 27 days ago
  • Profile image
    42.2k dekanii

    @Ghifar sure, just do it
    actually you dont need to ask my permission, just credit me and its all good to go

    27 days ago
  • Profile image
    570 Ghifar

    Can i upload my T-55 (the base was yours)
    I bassicaly add some armor and put M48 patton gun

    +1 28 days ago
  • Profile image
    42.2k dekanii

    @MXHS I have fixed the problem, it should work by now
    redownload to get the latest update

    28 days ago
  • Profile image
    42.2k dekanii

    @Ghifar Sure, since i already have an M60 chassis this would be easy for me

    29 days ago
  • Profile image
    42.2k dekanii

    @MXHS Are the wheels not connected?

    +1 29 days ago
  • Profile image
    570 Ghifar

    Can you make M60A2(Starship)?

    +1 29 days ago
  • Profile image
    0 MXHS

    can`t start?

    29 days ago
  • Profile image

    @dekanii my third most rated build is literally nothing.
    AND IT IS STILL GETTING ATTENTION TO THIS DAY

    +1 one month ago
  • Profile image
    42.2k dekanii

    @Boeing727200F dont say that, u are great 😃👍
    i think

    one month ago
  • Profile image

    @dekanii and still somehow have less upvotes then my looser ass.

    +1 one month ago
  • Profile image
    42.2k dekanii

    @Boeing727200F nooooo 💔

    +1 one month ago
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    54 upvotes in 15 days bro fell off.

    one month ago
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    the ston

    +1 one month ago
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