Airfoil Info

Manufactured on custom equipment to hold extreme tolerances, our constant chord airfoil stock features fully contoured top and bottom surfaces. All of our airfoils are made of AAA balsa and basswood for maximum quality and performance, and are available in various profiles and sizes for specific model aviation applications.

The profiles we offer are based on popular airfoils used in model aviation. The AG08 and the HT12 (developed by Mark Drela) are available for glider applications, while the SG6042 (developed by Michael Selig and Phillipe Giguerre) has been used with great success as rotor blades on model autogyros. All of our airfoil profiles have been slightly modified to increase the trailing edge thickness to be approximately .015”, which makes them more robust for modeling.

The drawings below provide a graphical representation of each airfoil profile we offer.

In addition to the various profiles, AeroBalsa Airfoils are also available in three types. Each type offers a unique advantage as described below.

AeroLite Airfoils™ Our lightest airfoil. Perfect for plane and glider wings, this all-balsa version is made of 4-6 lb. contest grade and has no basswood leading edge. Sold individually.

HardEdge Airfoils™ These are also made of 4-6 lb. contest grade balsa, but include a 3/16" basswood leading edge for added durability. Like our AeroLite Aifoils™, they're excellent for plane, glider wings and indoor electric autogyros. Sold individually.

RotorBlade Airfoils™ For use with model Autogyros. The basswood leading edge is sized to aid in chordwise balancing, which is critical for Autogyro rotor system performance. Sold in sets of 4.

The AG08 is available with a 2 ¾” constant chord and a thickness of approximately 6%. The HT12 is available with a 1 ½” constant chord and a thickness of 5%. Both the AG08 and the HT12 are only available as AeroLite Airfoils, which are made of contest grade, 4-6 lb. balsa. In addition to gliders, both of these airfoils are perfect for small electric planes.

The SG6042 is available in four constant chord sizes: 1 1/2", 2", 2 3/8", and 2 3/4". The thickness is at 11% of chord on all sizes. While the SG6042 is available in all 3 airfoil types as shown above, our RotorBlade Airfoils™ are by far the most popular amongst autogyro modelers. Click here to read some customer testimonials.

All of our airfoils are constant chord and thickness. Various lengths are available as listed on our order page.

The profile of our airfoils is maintained to within .004"[0.10mm] all around and along the entire length, and from one blank to the next. This extreme level of precision means that the lift generated at one end of the airfoil will match the lift generated at the other end (assuming the same air speed and incidence), and from one airfoil blank to the next. This characteristic is what makes our airfoils perform as well as they do, and is just one of the features that will make them an excellent choice for your model aircraft.

Accuracy, Precision, Consistency, Quality. That’s AeroBalsa airfoils.

[back to the top]