McDonnell 1969 - McDonnell 1969 shuttle 160 pixels Credit: © Mark Wade. 1,816 bytes. 120 x 305 pixels.

McDonnell-Douglas shuttle proposal phase A. Delta wing first stage and HL-10 lifting body second stage.

Liftoff Thrust: 1,959,220 kgf. Total Mass: 1,578,231 kg. Core Diameter: 8.0 m. Total Length: 71.0 m. Flyaway Unit Cost $: 48.00 million. in 1985 unit dollars.

• Stage Number: 1. 1 x Shuttle MDC-A-1 Gross Mass: 1,242,630 kg. Empty Mass: 220,254 kg. Thrust (vac): 1,933,000 kgf. Isp: 442 sec. Burn time: 230 sec. Isp(sl): 392 sec. Diameter: 8.0 m. Span: 46.0 m. Length: 59.5 m. Propellants: Lox/LH2 No Engines: 10. SSME Study

• Stage Number: 2. 1 x Shuttle MDC-A-2 Gross Mass: 335,601 kg. Empty Mass: 73,442 kg. Thrust (vac): 313,100 kgf. Isp: 459 sec. Burn time: 379 sec. Isp(sl): 359 sec. Diameter: 7.0 m. Span: 23.1 m. Length: 32.6 m. Propellants: Lox/LH2 No Engines: 2. SSME Study

• 29 - Chacko, George K, ed., Reducing the Cost of Space Transportation, AAS Science and Technology Series, Vol. 21, 1969.
• 44 - Jenkins, Dennis R,, Space Shuttle: The History of Developing the National Space Transportation System, Motorbooks International, ISBN 0-9633974-4-3, 1996.

---

McDonnell 1969 - McDonnell 1969 shuttle orbiter Credit: © Mark Wade. 1,505 bytes. 432 x 186 pixels.

---

---

McDonnell 1969 - McDonnell 1969 shuttle 3 view Credit: © Mark Wade. 2,751 bytes. 445 x 297 pixels.

---