Introduction

This page was put together to provide a "One Stop Shop" for Mark Drela's specially designed airfoils. The three main tables in this document list the different transitions and usage of the airfoils, as well as providing links for downloading the coordinates and related polar analysis.

Explanation

The nomenclature in the airfoil list requires a little explanation.

Most of Mark Drela's AG airfoils have variants for use on different sections of a particular wing. The root airfoil is tweaked to perform better on the smaller chord found on the outer sections of the wing.

They are listed as:

"root à tip"
or
"root à mid1 à mid2 à tip"

to suggest how to blend the family of airfoils.

The letter near the end of an airfoil name stands for the flap hinge line location in respect to the leading edge.

Letter	Hinge
a	60%
b	65%
c	70%
d	75%
e	80%

A "t" on the end means the airfoil was thickened near the flaperon hinge line for structural reasons.

Airfoil transitions and uses

Wing airfoils

Airfoils	Usage	Airplane names	Notes
AG03 à AG11	Built-up and solid-balsa small HLGs; Built-up small electrics needing large speed range	Wood Apogee
AG04àAG04àAG08à AG09àAG10	Composite HLGs,	Apogee	Note 2;Breaks: 20%,80%,92%
AG04 à AG08	Composite HLGs, strongly favor launch and run;	Apogee, Taboo	Composite S8E rocket gliders
AG12 à AG13 à AG14	Composite HLGs, roughly equal emphasis on float and run;	XP3 (polyhedral version)
AG16 à AG17 à AG18 à AG19	Composite HLGs, emphasis on float; Composite light 2M poly gliders	Photon, Watson-Sidewinder; Composite Allegro
AG25 à AG26 à AG27	Composite heavier 2M poly gliders
AG24 -> AG25 à AG26	Composite 3M poly gliders;	Hallett Bubble Dancer
AG31 à AG32 à AG33	Built-up small aileron gliders	Wind Dancer	hinge at 75-80%
AG36 à AG37 à AG38	Built-up 1.5m poly HLGs	-
AG35 à AG36 à AG37 à AG38	Built-up light 2M and 3M poly gliders	Allegro-Lite, Bubble Dancer
AG34 à AG35 à AG36	Built-up heavier 3M poly gliders	-
AG40d à AG41d à AG42d à AG43d	Composite 3M aileron gliders	Aegea 3m
AG45c à AG46c à AG47c	Composite 1.5M aileron HLGs	SuperGee	Note 2
AG455ct à AG46ct à AG47ct	Composite 1.5M aileron HLGs	SuperGee II, XP3, TabooXL
AG44ct à AG45ct à AG46ct à AG47ct	Composite light 2M aileron gliders	Aegea 2m

Tail airfoils

Airfoil(s)	Usage	Airplane names	Notes
HT08	All-moving small-glider tails	Allegro-Lite	can be thickened to 6-7% for larger gliders
HT12	DLG and light 2M tails	Allegro-Lite	hinge at 35-50% chord
HT13 à HT12	Heavy 2M tails
HT14 à HT12	3M tails	new Mantis
HT21	Built-up tails	Bubble Dancer
HT22	Cambered tails	SuperGee
HT23	Cambered DLG vertical tails	SuperGee

Airfoil coordinates and polars

Airfoil	Coordinates	CompuFoil COR files	Polars
AG03	ag03.dat	--	ag03_polars.pdf
AG04	ag04.dat	ag04.cor	ag04_polars.pdf
AG08	ag08.dat	ag08.cor	ag08_polars.pdf
AG09	ag09.dat	ag09.cor	Note 1
AG10	ag10.dat	ag10.cor	Note 1
AG11	ag11.dat	--	Note 1
AG12	ag12.dat	AG12.COR	--
AG13	ag13.dat	AG13.COR	--
AG14	ag14.dat	AG14.COR	--
AG16	ag16.dat	ag16.cor	ag16_polars.pdf
AG17	ag17.dat	ag17.cor	ag17_polars.pdf
AG18	ag18.dat	ag18.cor	ag18_polars.pdf
AG19	ag19.dat	ag19.cor	ag19_polars.pdf
AG24	ag24.dat	--	--
AG25	ag25.dat	--	--
AG26	ag26.dat	--	--
AG27	ag27.dat	--	--
AG31	ag31.dat	--	--
AG32	ag32.dat	--	--
AG33	ag33.dat	--	--
AG34	ag34.dat	--	--
AG35	ag35.dat	ag35.cor	ag35_polars.pdf
AG36	ag36.dat	ag36.cor	ag36_polars.pdf
AG37	ag37.dat	ag37.cor	ag37_polars.pdf
AG38	ag38.dat	ag38.cor	ag38_polars.pdf
AG40d(-2)	ag40d-02r.dat	--	--
AG41d(-2)	ag41d-02r.dat	--	--
AG42d(-2)	ag42d-02r.dat	--	--
AG43d(-2)	ag43d-02r.dat	--	--
AG44ct-02r	ag44ct-02r.dat	AG44CT-02R.COR	--
AG45ct-02r	ag45ct-02r.dat	AG45CT-02R.COR	--
AG45c-03	ag45c-03.dat	AG45C-03.COR	--
AG455ct-02r	ag455ct-02r.dat	AG455CT-02R.COR	--
AG46ct-02r	ag46ct-02r.dat	AG46CT-02R.COR	--
AG46c-03	ag46c-03.dat	AG46C-03.COR	--
AG47ct-02r	ag47ct-02r.dat	AG47CT-02R.COR	--
AG47c-03	ag47c-03.dat	AG47C-03.COR	--

Notes:
1. Polars not provided for tip airfoils as flow not really two-dimensional (2D) at the tip, so the analysis wouldn't be particularly meaningful...
2. Editors addition

Tail Airfoil Coordinates

Airfoil	Coordinates	CompuFoil files
ht05	ht05.dat	ht05.cor
ht08	ht08.dat	ht08.cor
ht12	ht12.dat	ht12.cor
ht13	ht13.dat	--
ht14	ht14.dat	--
ht21	ht21.dat	--
ht22	ht22.dat	HT22.COR
ht23	ht23.dat	HT23.COR