TorqueSim SR22 Development Update: Aerodynamics

Monday, March 30, 2020

Aircraft development conglomerate TorqueSim has revealed the fifth development update for their upcoming SR22 rendition, this time focusing in on aerodynamics.

New member Marius Bohn authored this week's update and began by saying that "TorqueSim['s] SR22 has been designed to take full advantage of the simulator’s capabilities and get as close as possible to the real world equivalent" in terms of flight dynamics.

He continues on to address in more detail the flight model of the Cirrus craft, which was designed by X-Aerodynamics all the way back in 2018. Bohn describes it the model as "professional", having used 'all available resources and documents" for the SR22.

The model has been updated since the, though, and is now supposedly ready for X-Plane 11.50, which will signal the change from OpenGL to Vulkan rendering.

Bohn says that the aircraft will feature highly accurate cruise speeds and climb rates, in addition to precise stall and glide behaviors. Landing and takeoff roll lengths have been addressed too, as well as turning rates, due in part to TorqueSim's precise work concerning control surface areas and deflections.

Additional effort has also been put into matching the shape of the SR22, so that X-Plane's flight model effects can be used to their fullest extent.

The blog post continues to mention a few special features the team have included which stray from the typical aerodynamic model of other aircraft - the first of which being a cuffed wing design.

According to Bohn, "this term refers to the non-continuous leading edge with its characteristic droop on about the outboard half. Thus the outboard section features a lower angle of incidence than the inboard section and is still flying while the inboard part is already stalled."

Cuffed wings on TorqueSim's SR22.

The last special feature mentioned today being Stall Strips, which is explained like this: "The real wing offers stall strips to complete the cuff effect, and our airfoil polars contain modifications in the places where these are located to accurately account for their effect.

"Stall strips are small attachments mounted at the leading edge located on the wing´s root, triangular in shape. At high angles of attack, they trip the laminar boundary layer at a location where stall is most favorable to onset, causing earlier flow separation and consequently a sooner stall than on the outer wing portions."

The systems developer finished his section on stall behaviors by saying that the SR22 wing is designed to stall from inboard to outboard, which he says allows for better roll control and spin prevention.

TorqueSim is a group venture comprised of members from Attitude Simulations and Advanced Flight Modelling, who announced the conglomerate back in August 2018. Their first aircraft was the Impulse 100 Pocket Rocket, which is sold on X-Aviation.

See the source post for this article on the TorqueSim website.

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