Responsive Access Small Cargo Affordable Launch (RASCAL ...

compared with state of the art fighter designs. This cost can be attributed to the mission
and speeds for which the baseline is designed.
Table 7: Comparison of First Stage Weights to Similar Fighter Aircraft [8].
GTOW Dry Weight Percentage
Baseline 101,500 lbs 56,564 lbs 56%
F-111 92,000 lbs 46,172 lbs 50%
Mig 25 79,800 lbs 44,100 lbs 55%
F-14 74,350 lbs 39,762 lbs 53%
Aeroheating:
The aeroheating analysis for the RASCAL design was complete using Miniver.
Miniver is an aeroheating code that predicts the radiative equilibrium temperature for a
given cross section and trajectory. The Miniver analysis was conducted for the first stage
(the upper stages are released outside the atmosphere), at both the centerline of the
aircraft, as well as the quarter chord location of the wing. Miniver takes the trajectory
outputs as well as the geometry defined in the configuration and calculates the
temperature at each position. The trajectory (AOA, Sideslip angle, altitude, and velocity)
of the first stage was inputted to Miniver using 35 points all for the first stage. To model
the geometry, 19 points were used on both the windward and leeward sides of the
fuselage, while 8 points were used for both sides of the wing. A temperature profile for
both the wing and the fuselage are included in Figure 21.
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