LAM Aero System

Left wing – lower Lam Aileron auxiliary flap panel (yellow) deployed in combination with main conventional flap (red) to form full-span flap with upper Lam Aileron panel (green) deflected upward for a left turn.

Aileron & Flap Innovation

Aero-engineers have long struggled with the inherent competition between conventional aileron and flap for space on the trailing edge of the wing. The traditionally mutually exclusive relationship between the two dictates that installation of larger flaps for good slow-speed performance resulting in small ailerons with less roll control authority. Alternatively, large ailerons result in small flaps. Previous attempts to accommodate large or full-span flaps have included spoilers, flaperons, and tailerons that compromise performance and safety.

The Lam Aero System (LAS)

Lam’s patented aileron technology uncouples the sizing relationship between flaps and ailerons. The LAM Aero System creates flexibility for flight wing control design.  It permits ailerons and flaps to be of any span, including full span (if needed), and their separate flight control functions can be mixed for additional modes of operation, such as speed brakes, etc.

LAS in Flight

Lam Aero System, as inserted between traditional aileron and flap. This innovative application of Lam’s patented aileron technology results in a small system package that provides lateral-control and high-lift synergy previously thought impossible.

Renowned aerospace engineer, designer and builder, Greg Cole of Windward Performance, has leveraged the Lam Aero System capabilities to retrofit a Lancair Columbia 300 airframe with a new smaller wing and tail made possible by the high-lift of the LAM Aero System. Following rigorous flight tests and evaluation in Bend, Oregon by highly regarded GA test pilot, former Naval aviator and US Navy test pilot Len Fox, the system has exceeded all expectations.  More importantly, it provides strong envelope protection.

Lam Aero based on patented aileron technology

LAM’s patented aileron creates two panels: one on top of the other at the trailing edge of the wing.  The upper aileron panel is deflected upward only from the neutral position; while the lower, auxiliary flap panel is capable of downward/outward deflections from the neutral position. The upper panel is deployed independently as an aileron and the lower panel is deployed independently as an auxiliary flap. Deflecting the Lam Aileron upward on one side only provides a rolling moment. Upward deflection only for roll control makes the entire trailing edge available for downwardly deflected surfaces such as flaps. This new aileron design releases flaps and ailerons from their traditional size interdependence on the trailing edge and eliminates the compromises between slow flight capability and roll control authority that follow while improving flight handling characteristics. It also allows the usual separate functions of flaps and ailerons to be mixed for additional operations such as speed brakes or drag rudders.

Lam Aero – Modes of Operation

  • For roll control not requiring flaps, LAM panels may be deflected upwardly together as a unit on one wing causing rolling moments.
  • When flaps are scheduled, the lower auxiliary flap panels are extended on both wings downward (and outward similar to the Fowler type) together with the main flaps to form large or full-span flaps, while the upper panels continue to move upward independently for roll control.
  • Deployment of the upper aileron panel upward and the auxiliary flap panel downward on one wing yields a drag rudder.
  • Simultaneous deployment of drag rudders on both sides enables the Lam Aileron to provide air braking with differential motion of the upper aileron panels superimposed for roll control.
  • For maximum roll control authority for highly maneuverable aircraft, the Lam Aileron may still be scheduled to act as a conventional differential aileron.
  • A small number of Lam Ailerons may be installed along the trailing edge to replace the many flap, spoiler, and aileron panels of large commercial aircraft.
  • The Lam Aero System provides envelope protection and strong anti-stall capabilities.


Q: Does the Lam Aero System require new materials or manufacturing processes?

A: No, the Lam Aero System is not dependent on any specific materials or manufacturing processes. The Lam Aileron is comprised of flap and aileron panels not much different than conventional aileron and flaps.

Q: How are the Lam Aero and subcomponents controlled?

A: The LAM Aero System incorporates electro mechanical controls that can mix aileron and flap control functions.

Q: How is the Lam Aileron different from a spoiler?

A: Just as conventional ailerons are trailing-edge devices, the Lam Aileron is a trailing-edge device and continuously modulates lift as it is deflected. Spoilers are mounted mid-chord on a wing and serve to disrupt, dump or literally “spoil” lift and are quite often problematic with their non-linear response.

Q: What kind of aircraft would use Lam Aero technology?

A: The Lam Aero System and it’s aileron based technology can be incorporated into any aircraft design that utilizes a conventional wing and tail configuration.

Q: Is pilot flight control or feel changed?

A: Pilot flight control input is unchanged. However, the system makes flying easier and gives pilots more control than without the system.