Profile image

Sikorsky R4

10.0k ForwardUntoDawn  25 days ago

The Sikorsky R-4 is a two-seat helicopter designed by Igor Sikorsky with a single, three-bladed main rotor and powered by a radial engine. The R-4 was the world's first large-scale mass-produced helicopter and the first helicopter used by the United States Army Air Forces, the United States Navy, the United States Coast Guard and the United Kingdom's Royal Air Force and Royal Navy.

Features

  • Quick 2 day build since I wanted a break from the Dune Ornithopter. I built this with the intent of making a heli that was fun to fly even with just a keyboard, without any stabilizing gyros
  • Completely VR compatible cockpit with excellent visibility
  • stable, accurate top speed
  • robust suspension; don't worry about setting her down too hard

Controls

  • AG 1: Main rotor
  • AG 2: rotate main rotor forward to achieve higher forward speeds
  • AG 3: Navigation lights
  • AG 4: airbrakes for slowing approach speed
  • Throttle: rotor collective
  • Trim: yaw trim
  • all instructions are labeled in the cockpit and found in craft instructions

Spotlights

General Characteristics

  • Created On Windows
  • Wingspan 26.7ft (8.1m)
  • Length 41.4ft (12.6m)
  • Height 12.2ft (3.7m)
  • Empty Weight 2,075lbs (941kg)
  • Loaded Weight 2,706lbs (1,227kg)

Performance

  • Power/Weight Ratio 17.531
  • Wing Loading 55.9lbs/ft2 (272.8kg/m2)
  • Wing Area 48.4ft2 (4.5m2)
  • Drag Points 5667

Parts

  • Number of Parts 232
  • Control Surfaces 1
  • Performance Cost 1,069
  • Log in to leave a comment
  • Profile image

    @AndrewGarrison thank you! The wheel tweak is fine, glad it works better for VR now!

    yesterday
  • Profile image

    I have updated the XML on this post to fix an issue with the wheels jittering in VR due to the lower physics timestep. I was able to fix it by reducing sideways friction on the wheels. If you are not okay with this tweak, let me know and I can revert the change, but I would also need to remove the curated status.

    +1 yesterday
  • Profile image
    12.3k V

    Curator's notes


    This thing is somehow almost perfectly scaled for VR, I would suggest using this aircraft's cockpit as reference

    +1 18 days ago
  • Profile image

    @UraniumOxide @SilverStar thanks!
    @YamaYamatheMountain the one used by the Atreides house in the new Dune movie

    20 days ago
  • Profile image

    which ornithopter you building?

    20 days ago
  • Profile image

    "Quick 2 day build"
    .
    .
    what

    +2 22 days ago
  • Profile image
    8,834 UraniumOxide

    A very cool helicopter! Nice work!

    23 days ago
  • Profile image
    5,552 SilverStar

    Simple and cool build !

    23 days ago
  • Profile image
    165 Droidy247

    Can I have a build request?

    23 days ago
  • Profile image

    You built one of my favorites. Nice

    23 days ago
  • Profile image

    By the way, i like those helicopters witout gyros ..

    23 days ago
  • Profile image

    @ForwardUntoDawn i always do that when the landing gear was crashing the plane. Because I use simpla planes on low physics..

    23 days ago
  • Profile image

    @ForwardUntoDawn that will work i think

    24 days ago
  • Profile image

    @ForwardUntoDawn I think it would be better if u add more connections in the main wheels of the aircraft, like just connect it to a random fuselage that is close to the wheels.

    24 days ago
  • Profile image

    @AndrewGarrison thanks for the advice! I'll try testing it on my phone on low physics to see if adding some dead weight works

    24 days ago
  • Profile image

    I tried it out on my Quest 2 and this is a great build for VR. The only issue I have is the landing gear jitter on low-quality (mobile) physics. We are investigating if there's anything we can do to help with this problem, but one workaround is to add some additional deadweight mass to the wheel assemblies.

    +8 24 days ago
  • Profile image

    it is great I just added a gyro to make it more stable

    24 days ago
  • Profile image
    1,419 Bellcat

    I wonder why no helicopter like this Sikorsky ever get featured in WWII films?

    24 days ago
  • Profile image
    2,575 bruhmoment99

    nice!

    24 days ago
  • Profile image
    2,581 Dathcha

    Theres a really cool YouTube video about this helicopter here

    +5 24 days ago