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Release for Flight and Operating Limit |
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| MIL-D-23222A(AS)
3.1.5
RELEASE FOR FLIGHT AND OPERATING LIMIT. -
Demonstration helicopters, other helicopters
of the same model, and other new models of Navy helicopters shall
not be operated by either contractor or Navy pilots prior to release
for flight by NAVPRO after NAVAIR has authorized release for flight
and, subsequently, Shall not be operated intentionally to limits
more critical than those of 3.1.5.1 or 3.1.5.2 as applicable. In
the determination of whether a planned limit of operation is or is
not "more critical", consideration shall be given to but shall not
be limited to the possibility that stalling an aerodynamic surface
may cause structural responses which may not be encountered at the
same load factor at a different speed, that sudden control move-
ments may Impose more critical loads because of the rapidity of
movement of the control, that varying degrees of stability may
impose more critical helicopter responses in turbulent air or during
deliberate maneuvers, and that rapid changes in power or thrust may
Impose more critical helicopter responses than slower changes.
Based on the extent to which the contractor has submitted contract
design data, including the results of test and other investigations"
required by pertinent contractual docments, and, usually, in direct
reply to a formal request from the contractor via the NAVPRO, NAVAIR
will initially authorize operating limits whiCh may be well inside
{i.e., less critical than the full contract design limits. NAVAIR
will, from time to time, authorize more critical operating limits
until finally, if justified by prerequisite contract design data and
other available information, the operating limits authorized by
NAVAIR will be either the full limits for which the contract requires
the helicopter to be (aerodymically, structurally, and functionally)
designed, or the limits to which the helicopter must be operated
in order that the contractor may comply with contract demonstration
requirements. It is recognized that the NAVPRO and/or the con-
tractor may possess additional information which may justify oper-
ating limits pursuant to 3.1.5.1 and/or 3.1.5.2 that will be more
restrictive than those authorized by NAVAIR. Normally, the initial
authorization by NAVAIR will be to the limits of "normal flying"
which, for helicopter demonstration purposes, shall mean that:
(1) Normal takeoffs, hovering, and landings are
authorized.
(2) Autorotation with power recovery only.
(3) For multi-engine helicopters, flights with one
engine out, are authorized.
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