SOFIA (N747NA) — Boeing 747SP-21
N747NA is The Stratospheric Observatory for Infrared Astronomy, flown by NASA and DLR. The airframe is on public display at Pima Air & Space Museum, Tucson.
A Boeing 747SP-21 with the former operator NASA and DLR. The Stratospheric Observatory for Infrared Astronomy, flown by NASA and DLR.
- Registration:
N747NA - Configuration: Boeing 747SP-21
- Manufacturer serial number (MSN): 21441
- Line number: 306
- First flight: 25 April 1977
- Delivered: 6 May 1977 (as N536PA, Pan Am)
- Engines: 4× Pratt & Whitney JT9D
- Operator history: Pan Am 1977–1986; United Airlines 1986–1995; NASA and DLR 1997–2022
- Current status: Preserved
- On display: Pima Air & Space Museum, Tucson, United States
SOFIA (N747NA) is listed in the Boeing 747 airframe registry, alongside other preserved and notable airframes. For every airframe ever operated by an airline, see the preserved Boeing 747 directory and the active fleet summary.
Sources
- Official visitor information — Pima Air & Space Museum
| Manufacturer | Boeing |
|---|---|
| Variant | 747SP-21 |
| First flight | 25 April 1977 |
| Status | Preserved |
| Engines | 4× Pratt & Whitney JT9D |
Sources
Facts on this page are checked against the primary and institutional references below.
- Boeing 747SP-21 at Pima Air & Space Museum, Tucson — Pima Air & Space Museum



