Proven performance and better safety

Our Columbia 300, N190LC, was tested to establish baseline performance in cruise and climb. This basic performance evaluation also included a measurement of stall speed with a swivel head pilot static boom.

The Lam Aero System permitted a new wing for the same N190LC Columbia that was tested in an analogous fashion after modification. Each test point was repeated using the same methods and instruments as was done on the stock aircraft.


The Joy of Flying at 238 mph…

Cruise Speed of 206 KTAS  vs.  stock airplane is only 181 KTAS

●      197 KTAS (227 MPH) at 12,000 FT using 2600 RPM (not full power cruise)

●      179.5 KTAS (206 MPH) at 22.2 MPG at 17,000 FT 2200 RPM

●      172.8 KTAS (199 MPH) at 23.1 MPG at 17,000 FT 2100 RPM

●      Stall speed:  56 knots at the same gross weight as the stock Columbia. Note: the Volant is a lighter airframe.

●      Volant roll control & flight handling characteristics in the landing configuration and slow flight are equivalent to cruise.

The LAM Columbia Volant uses the original stock engine, a normally aspirated 310 HP Teledyne Continental IO-550N.

 

Climb Performance Comparison

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The above figure gives a graphical representation of the rate of climb increase demonstrated by the Lam wing as compared to the stock wing. In addition to this, the aircraft feels much more solid and climbs much better at high altitudes. The stock aircraft is quite good at reaching 17,000 FT, but the modified aircraft is much better in all ways at this altitude.


Flight Characteristics

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The Lam Aero System fitted to this aircraft has improved lateral control power in the landing configuration. The ailerons are lighter at high speeds as compared to the stock aircraft. The feel of the lateral control system is quite “conventional.”

The aircraft is much more longitudinally stable. The Columbia 300 could benefit from a more aft CG range or a reduction in horizontal stabilizer size. A smaller horizontal stabilizer would allow for a further weight and drag reduction and resulting performance increase.

One area that has not been investigated is spinning behavior. It is believed that simultaneous deployment of the Lam flaps and ailerons will destroy the wing’s autorotation in a spin. This ability points towards a possible auto spin recovery feature.

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