MH 45 airfoil — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/mh45-airfoil/  (sheet CC BY 4.0; files Xem Studio Design License, https://xemstudio.com/license/)
Basis: Coordinates from the UIUC Airfoil Coordinates Database; thickness, camber and section by Xem Studio
Catalog version: 2026-10-20

Overall (mm): length 100.0, width 20.0, height 9.85
- MH 45: Martin Hepperle (MH series). Maximum thickness 9.85 % of chord at 27.6 % chord; maximum camber 1.71 % of chord at 32.1 % chord.
- Coordinates from the UIUC Airfoil Coordinates Database (M. Selig, UIUC Applied Aerodynamics Group), file mh45.dat, titled 'MH 45 9.85%'. Thickness and camber are computed by Xem Studio from those points (vertical distance at equal x, linear between points).
- The published trailing edge is sharp, so the section uses it as printed.
- The file is a 100 mm chord section, 20 mm deep: scale it uniformly to your chord, or import the STEP and sweep or loft it into a wing. Thickness scales with chord; the shape is the same at any size.

parameter  value  source
Max thickness  9.85 % chord at 27.6 % chord  computed from the UIUC coordinates
Max camber  1.71 % chord at 32.1 % chord  computed from the UIUC coordinates
Published points  67 (34 upper, 34 lower, shared leading edge)  UIUC coordinates
Trailing edge as published  sharp (closed)  UIUC coordinates
y at x = 1.25 % chord  upper +1.753 / lower -0.976 % chord  linear between the published points (UIUC coordinates)
y at x = 2.5 % chord  upper +2.587 / lower -1.444 % chord  linear between the published points (UIUC coordinates)
y at x = 5 % chord  upper +3.711 / lower -2.075 % chord  linear between the published points (UIUC coordinates)
y at x = 7.5 % chord  upper +4.477 / lower -2.503 % chord  linear between the published points (UIUC coordinates)
y at x = 10 % chord  upper +5.058 / lower -2.797 % chord  linear between the published points (UIUC coordinates)
y at x = 15 % chord  upper +5.852 / lower -3.146 % chord  linear between the published points (UIUC coordinates)
y at x = 20 % chord  upper +6.319 / lower -3.272 % chord  linear between the published points (UIUC coordinates)
y at x = 25 % chord  upper +6.540 / lower -3.276 % chord  linear between the published points (UIUC coordinates)
y at x = 30 % chord  upper +6.581 / lower -3.199 % chord  linear between the published points (UIUC coordinates)
y at x = 40 % chord  upper +6.250 / lower -2.889 % chord  linear between the published points (UIUC coordinates)
y at x = 50 % chord  upper +5.495 / lower -2.466 % chord  linear between the published points (UIUC coordinates)
y at x = 60 % chord  upper +4.390 / lower -1.999 % chord  linear between the published points (UIUC coordinates)
y at x = 70 % chord  upper +3.033 / lower -1.525 % chord  linear between the published points (UIUC coordinates)
y at x = 80 % chord  upper +1.637 / lower -1.053 % chord  linear between the published points (UIUC coordinates)
y at x = 90 % chord  upper +0.513 / lower -0.586 % chord  linear between the published points (UIUC coordinates)
y at x = 95 % chord  upper +0.123 / lower -0.343 % chord  linear between the published points (UIUC coordinates)
Coordinates source  UIUC Airfoil Coordinates Database: mh45.dat ('MH 45 9.85%')  UIUC Applied Aerodynamics Group (M. Selig)

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- UIUC Applied Aerodynamics Group (M. Selig): UIUC Airfoil Coordinates Database: mh45.dat ('MH 45 9.85%') — web — UIUC Airfoil Coordinates Database, public research data; coordinates are facts, cited and linked, not rehosted — https://m-selig.ae.illinois.edu/ads/coord/mh45.dat
- UIUC Applied Aerodynamics Group (M. Selig): UIUC Airfoil Coordinates Database (original: Martin Hepperle (MH series)) — web — UIUC Airfoil Coordinates Database, public research data; coordinates are facts, cited and linked, not rehosted — https://m-selig.ae.illinois.edu/ads/coord_database.html

Free files (Xem Studio Design License, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/mh45-airfoil/index.json
API: https://xemstudio.com/api/geometry?object=mh45-airfoil