XV-15 litho - NASA's History Office

Figure 41 Simultaneous static test firing of XV-15 ejection seats.
Figure 42 Parachutes deployed during seat ejection test.
Figure 43 Bell XV-15 ground tiedown facility.
Figure 44 Initial Bell tiedown tests showing metal protective shields.
Figure 45 XV-15 in the Ames Research Center 40- by 80-foot wind tunnel.
Figure 46 Government and Bell personnel at the Dryden Flight Research
Center, October 1981.
Figure 47 XV-15 plaque being presented to Government pilots by Bell pilots
at the acceptance ceremony.
Figure 48 Ames Tiedown test facility showing rescue ramp.
Figure 49 Tiedown test facility at the Ames Research Center showing the
hydraulic lift.
Figure 50 XV-15 hovering in-ground-effect during 1984 performance and
downwash test.
Figure 51 Method used to position the aircraft for the downwash and
acoustics hover test at the Ames Research Center.
Figure 52 XV-15 proprotor on the propeller test apparatus at the Ames
Outdoor Aerodynamic Research Facility.
Figure 53 Tilt rotor structural elastic modes.
Figure 54 Wing modes of the tilt rotor aircraft structure.
Figure 55 XV-15 during short takeoff performance test.
Figure 56 Flow visualization near the XV-15 wing tips.
Figure 57 Flow visualization near the XV-15 wing mid-span position.
Figure 58 Inboard flow visualization showing “fountain flow” above the
fuselage.
Figure 59 Hover acoustics tests during low wind conditions at sunrise.
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