Wind-Tunnel Investigation of a Low-Drag Airfoil Section with a Double Slotted Flap
- Bogdonoff, Seymour M.
- September 1943.
- Physical Description:
- 1 electronic document
- Restrictions on Access:
- Unclassified, Unlimited, Publicly available.
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- Tests were made of an 0.309-chord double-slotted flap on an NACA 65, 3-118, a equals 1.0 airfoil section to determine drag, lift, and pitching-moment characteristics for a range of flap deflections. Results indicate that combination of a low-drag airfoil and a double-slotted flap, of which the two parts moved as a single unit, gave higher maximum lift coefficients than have been obtained with plain, split, or slotted flaps on low-drag airfoils. Pitching moments were comparable to those obtained with other high-lift devices on conventional airfoils for similar lift coefficients.
- Other Subject(s):
- NASA Technical Reports Server (NTRS) Collection.
- Document ID: 19930092793.
Accession ID: 93R22083.
- No Copyright.
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