VSKYLABS Flight Design CTLS Project

The VSKYLABS Flight Design CTLS Project
JetManHuss - VSKYLABS (c) 2025 All Rights Reserved

Separate native products for X-PLANE 12 and X-PLANE 11, for your selection.

MINIMUM HARDWARE REQUIREMENTS FOR X-PLANE 12

Disk Space: 25GB
CPU: Intel Core i3, i5, i7, or i9 CPU with 4 or more cores, or AMD Ryzen 3, 5, 7 or 9.
(Those with other CPUs should try the demo before purchasing.)
Memory: 8 GB RAM
Video Card: a Vulkan 1.3-capable video card from NVIDIA or AMD with at least 2 GB VRAM
Note: Intel GPUs are not supported by X-Plane 12.

The development of the VSKYLABS Flight Design CTLS Project for X Plane was approved by 'Flight Design GmbH'. Although acknowledged by 'Flight Design GmbH', it is an independent VSKYLABS project which is not affiliated and/or endorsed with/by 'Flight Design GmbH'.

Project Introduction

This project is part of the VSKYLABS 'Test-Pilot' series, designed specifically for use with X-Plane cutting edge Flight Model.

The CTLS aircraft is produced by Flight Design of Germany. Produced in 2008, it is a part of Flight Design CT series family. It is a high-wing, tricycle, two seat light sport aircraft. The aircraft built mainly from composite materials construction, having an efficient aerodynamics shape and relatively low weight, allowing to carry high useful loads. It is powered by a Rotax 912 ULS engine. Thanks to its design efficiency, the CTLS is fast, spacious and capable for cross country flights, with a cruise speed of approximately 115 knots, and maximum range of up to 850 nautical miles. Due to its cantilever wing design, the CTLS has no wing struts to obstruct the outside view. Main landing gears are composite constructed as well, designed to absorb hard landings. The CTLS is equipped with a BRS (Ballistic Recovery System) parachute.

Project Highlights

• VSKYLABS 'Test-Pilot' Project: designed for use with X-Plane cutting edge flight model environment.
• Two aircraft included: G1000 & Classic analog variants.
• Built for VR: development was tailored specifically for VR, and optimized for 2D usage.
• Perfect fit for beginner and expert pilots:  The VSL CTLS features the standard, basic CT VFR + night pack panel, as well as a fully featured LR G1000. The simple and clear analog gauges layout is perfect for beginner pilots, while the full glass cockpit provides modern and advanced flying environment.
  Note: The analog panel is also featuring an enhanced panel-combo, that includes a notebook-based glass PFD alongside a Dynon style AP74 and HS34 (simplified, yet functional features).
• Equipped with Alpha Systems AOA 'Eagle' indicator replica.
• Built-in Avitab Plugin Compatibility (AviTab plugin is not included).
• Autoupdater based on the SkunkCrafts autoupdater (XP12 only). All updates are being pushed smoothly without the need to re-download the entire base package (base package will be updated every once in a while to minimize the gap).
• Highly responsive VSKYLABS support forums.
• Includes the new VSKYLABS 'Cockpit-Builders' Assignment layer that allows intuitive hardware assignment using X-Plane 12 built-in assignments system.

Pilot's Operating Handbook

(included in the package, online version not available)

Update Log

VSKYLABS Flight Design CTLS Project
JetManHuss - VSKYLABS (c) 2025 All Rights Reserved

XP12 - v5.0 Major Update Release (13th September 2025)

• New aircraft included:
  • New variant: CTLS/G1000 - was added. Fully featured LR G1000 on board including autopilot and all peripherals.
• Flight dynamics:
  • Complete validation and tuning that covers real-world FD CTLS/Rotax 912 engine power gradients, takeoff and landing performance, climb and cruise performance to fall in line with the latest X-Plane 12 flight dynamics environment.
• Graphics:
  • Brand-New redesigned/remodeled 3-d aircraft (100% exterior, ~80% interior).
  • New easy-to-paint paintkit.
  • New 3-d animated pilot figure for enhanced immersion in 1st person view/VR operations.
  • New 3-d passenger model.
• Sounds:
  • Improved FMOD (engine sounds).
• VSKYLABS Cockpit-Builders assignment layer:
  • All cockpit systems interactions have been re-designed, featuring now the VSKYLABS Cockpit-Builders assignment layer that allows full and intuitive Joystick buttons/keys assignments using X-Plane 12 build-in assignment system.

XP12 - v4.0e (15th May 2023):

• GNS530 no-popup bug fixed

XP12 - v4.0 (28th March 2023):

• FDM - Physics and aircraft performance:
  • Cruise performance tuneups (speeds, drag).
  • Handling characteristics tuneups especially in the low speed regime (including control surfaces responsiveness).
  • Fuel consumption tuneups.
• Systems:
  • New 'Alpha Systems AOA' Eagle AOA indicator.
  • New altimeter (dual system).
  • New gauges lights system.
• 3-d modeling:
  • Various panel and cockpit 3-d modeling and textures enhancement, including in PBR textures.
• VR interaction:
  • Various VR interaction refinements.
• Sounds:
  • New FMOD 2.0 engine sounds.
  • Various refinements.

XP12 - v3.2 (4th December 2022):

• Interior lighting system reset and retuned to comply with the modified X-Plane 12.00r1+ lighting engine.

XP12 - v3.1 (23th November 2022):

• Updater software replaced - from STMA to SkunkCrafts. 

XP12 - v3.0 (September 2022):

• X-Plane 12 initial version release.

XP11 - v2.0a (4th August 2020):

• New default head position in VR config file was set to match v2.0

XP11 - v2.0 (29th July 2020):

• FMOD Sounds Pack:
  • FMOD Sound pack update to include Rotax 912 authentic sounds.
  • Starter, engine start and shutdown sound interactions were added.
  • Bug fix for quiet sounds in 'VR external' mode.
• Flight dynamics (Phase #1):
  • All round tune-ups Phase #1 (cruise, flaps, overall handling for latest Experimental flight model).
  • Propeller and engine tune-up.
  • Flaps damage (1st stage) speed tuneup.
• Interaction:
  • Brake lever can now be biased to 'Wing Sweep' Joystick axis and be used by a hardware lever.
• Manual/POH:
  • Updated to Rev.002
  • Key assignment table was added to all functions (switches, CB's).
• Liveries added:
  • Two liveries were added. The project is now including 3 liveries.
• Bug Fixes:
  • Analog Vertical Speed Indicator calibrated to show more accurate readings between -1000 to +1000 feet per minute.

XP11 - Update without version change (15th April 2020):

• Paint-kit was added to the project. It is a separate file in the purchase page.

XP11 - v1.15a (9th April 2020):

• Minor tuneup for oil temp and CHT readings.

XP11 - v1.15 (20th January 2020):

• Slip indicator was added, attached to the AH.

XP11 - v1.1 (28th November 2019):

• This is a flight dynamics update, and now the project is tuned and validated to work with X-Plane 11.40+ Experimental flight dynamics model.

XP11 - v1.0 (8th August 2019): Initial Version Release.