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An Introduction to

Lake Central Air ServiceOur Past, The Present and What

We Can Do For You

LCAS

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INTRODUCTION

For over 45 years Lake Central Air Services (LCAS) has built a strong reputation for quality service in aircraft

maintenance, parts manufacture, aircraft modifications, and customer support. We have a very long history of designing modifications such as externally mounted

research equipment interfaces, aerodynamic performance improvements, increased fuel capacity

modifications, avionics and instrument panel re-designs, and in the design and manufacture of Airworthiness

Directive correction modifications.

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LCAS is Transport Canada approved to manufacture aircraft parts and certify aerodynamic

products. Over the years we have gradually worked into the field of performing special purpose installations of surveillance equipment for land and

sea, atmospheric monitoring and geophysical survey modifications to aircraft. LCAS can design, engineer, manufacture, install, and approve survey

modifications to your aircraft with our in-house Transport Canada Designated Airworthiness

Representative (DAR).

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LCAS currently hold FAA, EASA, Canadian, and Brazilian Supplemental Type Certificates (STC’s) for modifications covering over 80 different types of aircraft and helicopter makes and models plus many serialized STC’s for other less popular fixed

and rotary wing aircraft.

LCAS IS A TRANSPORT CANADA APPROVED MAINTENANCE & MANUFACTURING

ORGANIZATION Certificate #195-92

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With our success of past modifications LCAS has a proven track record of modifying aircraft and installing equipment in an efficient and timely manner. We pride ourselves on our ability to design, fabricate and install anything we are

tasked with to meet the desired configuration for our customers specific requirements.

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WHAT WE CAN DO FOR YOUR PROJECT

LCAS can provide you with a range of services from conceptual design through to project

completion. Our services include aerodynamic flow and particle trajectory simulations to insure the

most precise data gathering possible, component interface design and manufacture utilizing both

aluminium alloy and advanced composite structures as required, as well as the required

documentation to achieve certification.

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LCAS Previous Projects

The Alfred Wegner Institutes Polar 5 Research Aircraft

LCAS

Polar 5

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LCAS

The Early Stages of the Environment Canada/NASA HIWC Program Development

(Concept #1 NASA S-3 Viking)

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LCAS

The Early Stages of the Environment Canada/NASA HIWC Program Development (Concept #2 NASA DC-8 Research Aircraft)

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LCAS

HIWC Program

Task was to develop a conceptual design for the integration of a suite of scientific instruments onto a Gulfstream G-II Aircraft using existing hard

points (Concept #3)

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LCAS

HIWC Program continued

LCAS Concept using unmodified G-II platform.

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Twin Otter Nose Boom

From Concept to Completion

LCAS

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King Air Vertical Gradient Tail Boom

From Concept to Completion

LCAS

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Douglas DC-3 Wing Tip Boom’s and Survey Equipment Belly Pod

From Concept to Completion

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Eurocopter AS-350 Nose Boom

From Concept to Completion

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Cessna C-206 Vertical Gradient Wing Tip Pod

From Concept to Completion

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LCAS

Proposal for Installation of Cloud Measurement Probe(s) on an in-service

Boeing 747 Aircraft

Photo of an existing Pylon Assembly developed for Rolls Royce and mounted on their Boeing 747 flying test bed at the fifth engine position.

LCAS proposes that a study be undertaken to determine if a simpler more cost effective pylon system could be developed using the same wing hard points used for the fifth engine position. This new pylon system could then be installed on any 747 with fifth engine provisions.

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LCAS

Proposal for Installation of Cloud Measurement Probe(s) on an in-service

Boeing 747 Aircraft

The main goal in the development of the installation of Cloud Measurement Probes on any aircraft is to insure the instruments are mount in the best possible free stream air flow condition.

The first step in achieving this goal for this project would be to model the 747’s fuselage and inboard wing section then carry out flow and particle bounce simulations using SolidWorks/FlowWorks CAD software.

Once these simulations are done an optimum position for the probe can be selected and a pylon system developed to bridge the gap between the probe position and the available existing wing hard points.

Once the conceptual shape is determined then material selection can be made taking into account the aircrafts speed, altitude and environmental conditions expected as well meeting the requirements of FAR part 25.

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LCAS

LAKE CENTRAL AIR SERVICESLAKE CENTRAL AIR SERVICES

A Division of 579678 Ontario Inc.Muskoka Airport, RR #1

Gravenhurst, Ontario. P1P 1R1705-687-4343 Fax 705-687-8983

E-mail: lakecent@muskoka.com Website: www.lakecentral.com