April 2013

Exhibit 99.1

TransDigm Overview

*

Revenue information for fiscal year ended September 30, 2012.

Aerospace Components

Proprietary Engineered Products

Diverse Platform Base

Significant Aftermarket Content

Distinguishing Characteristics

Annual Revenue $1.7 Billion *

1

Consistent Record of Growth and Margin Expansion

2

Revenue

EBITDA As Defined and Margin

($ in millions)

% of Revenue

20% 19% 23% 27% 31% 39% 39% 36% 36% 39% 42% 46% 44% 45% 46% 47% 49% 50% 49% 48%

Note:  EBITDA As Defined is a non-GAAP financial measure.  For a reconciliation of EBITDA As Defined to Net Income and to Net Cash Provided by Operating

Activities, please see the appendix.

Approximately 57% of FY 2012 pro forma revenues and a much higher percentage of

EBITDA As Defined are from the stable, high-margin aftermarket.

Pro Forma Revenues

(Excluding

Ground

Transportation)

(1)

EBITDA As Defined

(1)

Strong Focus on High-Margin Aftermarket

Aftermarket: 57%

OEM: 43%

(1)

Pro

forma

revenue

for

the

fiscal

year

ended

9/30/12

(excluding

Ground

Transportation

sales

of

$65

million

or

4%

of

total

sales).

Please

see

the

Special

Notice

Regarding

Pro

Forma

and

Non-GAAP Information.

3

OEM

Aftermarket

Comm

Aftmkt

44%

Comm

OEM

32%

Defense

OEM

11%

Defense

Aftmkt

13%

PROPRIETARY REVENUE

Based on management estimates of pro forma TDG sales  for the fiscal year ended 9/30/12.  Please see the Special Notice Regarding Pro Forma and Non-GAAP Information.

SOLE SOURCE REVENUE

Significant Proprietary and Sole Source Revenue Base

Results

in

strong

market

positions

and

a

stable,

recurring

revenue

stream.

4

Strong Positions on Diverse and Growing Platforms

Note: Based on Management estimates of sales for 2011.

B737

A320

B777

C130

B747

A330/A340

Black Hawk

CRJ Family

B787

Gulfstream Series

A380

Embraer Family

B757/767

Cessna Citation Series

C17

20% Sales

30% Sales

5

5

Corporate

Control

Local

Autonomy

Economy

of Scale

Mgmt

Resources

Value Generation Strategy

Structure

Execution

Motivation

Central

Control

Local

Autonomy

Emp-

loyees

Owners

CORPORATE

OPERATING UNIT

6

Organizational Philosophy

6

7

Proven Operating Strategy

Profitable New Business

Productivity and Cost

Improvement

Value-based Pricing

3 VALUE DRIVERS

1993

–

2001

2002

–

2006

2006

–

2010

Adel

Aeroproducts

Wiggins

Controlex

Marathon

Adams Rite

Aerospace

Christie

Champion

Honeywell Lube

Pump

Fuelcom

Norco

Avionic Instruments

Skurka

Fluid Regulators

Eaton Motors

Hartwell

Electromech

Tyee

TAC

Linread

Valley-Todeco

AQS

Talley Actuation

Schneller

Harco

AmSafe Passenger

Restraints

AmSafe Commercial

Products

AmSafe Cargo Restraints

& Specialty Devises

Aero-Instruments

2011

–

2013

Sweeney

Electra-Motion

CDA InterCorp.

Avtech

ADS/Transicoil

Bruce

CEF

Unison/GE

APC/GE

Acme

Woodward HRT

Dukes

Semco

Privately Held

NYSE

TransDigm has acquired 42 businesses since 1993, including 27

since its IPO.

8

(1)

(1)

(1)

Proven Record of Acquisition & Integration

(1)

Divested in Q2 and Q3 of FY2011.

Common Distinguishing Characteristics

9

Aerospace components

Proprietary engineered products

Significant aftermarket content

Diverse Products, Platforms and Markets

10

TransDigm–

Major Locations

11

12

Liberty, SC

20

12

South Euclid, OH

TransDigm Operating Unit –

Engine Ignition, Pumps, & Air Data Sensors

13

Painesville, OH

TransDigm Operating Units –

Valve & Fluid Products

17

Northridge, CA

13

14

TransDigm Operating Unit –

Motors & Actuators

Wichita, KS

17

14

Camarillo, CA

CDA InterCorp

Deerfield Beach, FL

Fullerton, CA

15

18

Placentia, CA

15

TransDigm Operating Unit –

Cockpit Security, Latches & Water Systems

16

Everett, WA

19

Liege, Belgium

16

TransDigm Operating Unit –

Flight Deck Audio & Structural Rods

17

Avionic Instruments Inc

Avenel, NJ

Waco, TX

17

TransDigm Operating Unit –

Electrical Power Equipment & Batteries

18

Commerce, CA

18

Kent, Ohio

18

TransDigm Operating Unit –

Engineered Composites, Elastomers, & Laminates

19

Cargo Restraints

Bridport, UK

Passenger Restraints

Phoenix, AZ

19

TransDigm Operating Unit –

Cargo & Seatbelts

20

Valencia, CA

20

Branford, CT

TransDigm Operating Unit –

Engine Sensors & Electric Cables

21

Collegeville, PA & Melaka, Malaysia

Dayton, NV

21

TransDigm Operating Unit –

Cockpit Displays & Lighting

22

Welcome

22

Welcome

Appendix

24

($ in millions)

1994

1995

1996

1997

1998

1999

2000

2001

2002

2003

2004

2005

2006

2007

2008

2009

2010

2011

2012

Income from continuing ops.

($5)

$0

$1

$3

$14

($17)

$11

$14

$31

($76)

$14

$35

$25

$89

$133

$163

$163

$152

$325

Depreciation and amortization

7

7

7

6

7

6

7

9

13

10

18

17

16

24

25

28

30

61

68

Interest expense, net

5

5

5

3

3

23

28

32

37

43

75

80

77

92

93

84

112

185

212

Income tax provision

(2)

-

2

5

13

(2)

8

9

17

(45)

6

23

16

53

74

88

88

77

163

Warrant put value adjustment

1

1

2

5

7

-

-

-

-

-

-

-

-

-

-

-

-

-

-

Extraordinary item

-

-

-

2

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

EBITDA, excluding discontinued

6

13

17

24

44

10

54

64

98

(68)

113

155

134

258

325

$363

$393

$475

$768

operations

Merger expense

-

-

-

-

-

40

-

-

-

176

-

-

-

-

-

-

-

-

-

Acquisition-related costs

4

-

-

1

-

1

-

8

-

15

20

2

1

9

2

6

12

30

19

Non-cash compensation and

   deferred compensation costs

-

-

-

-

-

-

-

-

-

1

6

7

1

6

6

6

7

13

22

One-time special bonus

-

-

-

-

-

-

-

-

-

-

-

-

6

-

-

-

-

-

-

Public offering costs

-

-

-

-

-

-

-

-

-

-

-

-

3

2

-

-

-

-

-

Refinancing costs

-

-

-

-

-

-

-

-

-

-

-

-

49

-

-

-

-

72

-

EBITDA As Defined

$10

$13

$17

$25

$44

$51

$54

$72

$98

$124

$139

$164

$194

$275

$333

$375

$412

$590

$809

Reconciliation of EBITDA

and EBITDA As Defined to Net Income

Important Information Regarding the Tender Offer

This

communication

is

not

an

offer

to

purchase

or

a

solicitation

of

an

offer

to

sell

securities

of

Aerosonic.

The

planned

tender

offer

by

TransDigm

for

all

of

the

outstanding

shares

of

common

stock

of

Aerosonic

has

not

been

commenced.

On

commencement

of

the

tender

offer,

TransDigm

will

mail

to Aerosonic stockholders an offer to purchase and related materials and Aerosonic will mail to its stockholders a solicitation/recommendation

statement with respect to the tender offer.

TransDigm will file its offer to purchase with the Securities and Exchange Commission (the “SEC”) on

Schedule

TO,

and

Aerosonic

will

file

its

solicitation/recommendation

statement

with

the

SEC

on

Schedule

14D-9.

AEROSONIC

STOCKHOLDERS

ARE URGED TO READ THESE MATERIALS CAREFULLY WHEN THEY BECOME AVAILABLE, SINCE THEY WILL CONTAIN IMPORTANT

INFORMATION,

INCLUDING

TERMS

AND

CONDITIONS

OF

THE

OFFER.

Aerosonic

stockholders

may

obtain

a

free

copy

of

these

materials

(when they become available) and other documents filed by TransDigm or Aerosonic with the SEC at the website maintained by the SEC at

www.sec.gov.

These materials also may be obtained (when they become available) for free by contacting the information agent for the tender offer

(when one is selected).

Some

of

the

statements

in

this

communication

constitute

“forward-looking

statements”

within

the

meaning

of

the

Private

Securities

Litigation

Reform

Act

of

1995

and

the

Securities

Exchange

Act

of

1934.

These

statements

are

related

to

the

expected

timing,

completion

and

effects

of

the

proposed

transaction

or

other

future

events,

and

may

be

identified

by

terminology

such

as

“may,”

“will,”

“should,”

“expects,”

“scheduled,”

“plans,”

“intends,”

“anticipates,”

“believes,”

“estimates,”

“potential,”

or “continue,”

or the negative of such terms, or other comparable terminology.

These

statements are only predictions and are subject to risks and uncertainties that could cause actual results to differ materially from those expressed in

the

forward-looking

statements.

Aerosonic

and

TransDigm

might

not

be

able

to

complete

the

proposed

transaction

on

terms

described

above,

other

acceptable

terms

or

at

all

because

of

a

failure

to

satisfy

closing

conditions,

including

receipt

of

sufficient

tenders,

or

other

factors.

Aerosonic

and

TransDigm make no promise to update any forward-looking statement, whether as a result of changes in underlying factors, new information, future

events or otherwise.

25

April 2013