2.1.1 The following
data, plans and supporting information are to be submitted for appraisal
at an early stage. Modifications to previously approved data or plans
are also to be submitted for approval.
2.1.2
Main
engines:
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Particulars including
number, make, type and manufacturer’s duty cycle, together with
details of limited operational parameters.
-
Estimated or proved
service life of the engine between complete overhauls, and the replacement
life of its major components.
-
Type and flashpoint
of fuel used.
-
Particulars of engine
maker’s designated duty cycle and accumulated service history.
-
Particulars of safety
precautions against failure of high energy rotating parts in service,
including results of any tests to destruction if available.
-
Particulars of engine
control/management system, including engine protection devices and
controls.
-
Particulars of ancillary
equipment driven by the main engine essential to the operation of
the ACV in service.
-
A copy of the Engine
Operations and Maintenance Manual(s).
-
General arrangement
plan of main engine.
-
Details, dimensions
and materials of the principal rotating parts for the engine family.
-
Details of engine mounting
arrangements.
-
Arrangements and details
of engine starting and control equipment.
-
Engine test procedure.
2.1.3
Transmission:
-
Manufacturer’s
calculations for the transmission system between main engines, propellers,
and lift fans, including shafting, gearing, drive belts and clutches.
-
A vibration analysis
of the complete transmission system, including torsional, axial and
sources of excitation, where applicable, supported by experimental
results where necessary.
-
General arrangement
and detailed plans showing materials and dimensions of all main propulsion
and lift shaft components.
2.1.4
Propellers
(airscrew) and lift fans:
Arrangement and detailed plans, including particulars of materials,
of propellers and lift fan assemblies. Details of service intervals,
maintenance requirements and authorised maintainers. The following
plans/documentation are to be submitted:
-
The methods and procedures
for construction, testing and balancing of propellers and lift fans.
-
Propeller pitch control
system schematic.
-
The manufacturer is
to issue a Certificate for Air Propellers for each propeller stating
the agreed National Standard to which the propeller was designed,
manufactured and tested. Documentation is to be provided that verifies
the propeller performance in accordance with the agreed Standard.
2.1.5
Piping
Systems:
Schematic layout or other equivalent documents for the following
systems, together with a general description of each system, indicating
operating pressures, etc. safety devices and means of protection against
corrosion and contamination:
-
Fuel System.
-
Lubricating oil System.
-
Hydraulic and/or pneumatic
system(s) for steering trimming and air propeller pitch control.
-
Air filtering to power
units.
-
Storage and transfer
arrangements for water ballast systems.
-
Bilge/dewatering arrangements.
2.1.6
Drive
Belts:
Details of drive belts, including manufacturer’s rating,
are to be submitted together with design calculations showing design
loading of the belts at maximum shaft torque.
2.1.7
Steering
Systems:
Full details of the primary and secondary means of steering
the ACV are to be submitted. The submission is to include following:
-
A systematic arrangement
drawing showing the arrangement(s) for the control of the air rudders
and/or other means of steering the ACV, including skirt shift.
-
Design calculations
for the steering system, showing maximum mechanical loadings of the
linkages, fastenings and power units, including securing arrangements.
-
Where additional thrusters
(e.g. bow thrusters) are used for essential steering purposes, full
details are to be submitted.
2.1.8
Test
Programme:
LR will review the manufacturer’s proposed test programme
and results to confirm that all criteria and technical requirements
as recorded in the design appraisal have been addressed.