SAWE Report - Cal Poly San Luis Obispo

12 Payload
Weapon internal layout drove the Vendetta’s size and layout. For small C.G. excursion due to
weapons deployment all stores
were initially positioned as close to
the C.G as possible. As shown in
Figure 12.1, three configurations
were produced. Configuration one
utilizes a standard weapons bay
configuration. The large weapons
bay drove the configuration to over
120 ft (36.576m) in length when
room for landing gear and
weapons targeting systems were
integrated. In an effort to decrease
overall size a small rotary launcher
was designed and integrated into a
second configuration. This step
increased the maximum cross
sectional area by 5ft 2 (0.464m 2 Figure 12.1 - L to R configurations 1, 2, 3
)
and shortened the length of the
aircraft to 95ft (28.9m).
Figure 12.2 - 180 inch MPRL
The next iteration of the design utilized the
existing 180in (4.57m) MPRL out of the B-1B
and shown in Figure 12.2. This caused the final
configuration to grow to 105ft (32m) in length
and maximum cross sectional area of 55 ft 2
(5.11m 2 ). Utilizing the MPRL allowed for a wide
selection of alternate missions and configurations
to be discussed later.
In an effort to ascertain the feasibility of RFP delineated weapons as supersonic deployment
candidates research was done for each proposed system. As can be seen
in the foldout only one of all of the weapons has even been wind tunnel
tested for supersonic deployment. This led to the proposed systems for
possible supersonic deployment.
Retrofitting many of the weapon systems with a ballute and sabot,
shown in Figure 12.3, would aide in supersonic stability. The use of a
bomb bay supersonic flow deflector and acoustical resonance damping
system as well as flow modification system would aide in deployment.
Figure 12.3 - Ballute
and Sabot
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