Operations and Data Review

Presentation to:

Noise Compatibility Committee

October 26, 2017

1

Topics

Comment Data Review

Operations during Curfew “Shoulder Hours”

Hush-kitted Operations

Night Operations

Jet Operations during Curfew

Updated and Revised Heat Maps

Radar Data Review

2

Evaluation of Comment Data

Comments collected

via PlaneNoise and

matched to radar

data

• Evaluated a 12 month

period

(6/2016 – 5/ 2017)

• Total number of

comments - 154

Arrivals – 27%

Departures – 48%

Overflights – 21%

Unknown – 4%

3

0

5

10

15

20

25

30

35

40

45

Comments

Evaluation of Comment Data

By Category (6/2016 – 5/2017)

• Most due to jets

Top Reasons

• Too Loud 17%

• Too Low 14%

• Too Frequent 14%

• Disturbed Sleep 11%

Of the Comments with Known Aircraft types

• Only two comments from Hush-kit aircraft

• Highest percent from Multiple/Unknown types

• 2nd highest from Exempt Public Service (Mosquito Control, Sheriff etc..)

• Remaining from a wide variety of Jet and Non-Jet types

4

Evaluation of Comment Data By time of day (6/2016 – 5/2017)

• Daytime (7am – 10pm) 58%

• Nighttime (10pm – 7am) 42%

5

9

5

1 1

5

15

16

7

3 3 3 3

7

3

10 10

9

11

10

3

4

3

8

5

12 AM 1 AM 2 AM 3 AM 4 AM 5 AM 6 AM 7 AM 8 AM 9 AM 10 AM 11 AM 12 PM 1 PM 2 PM 3 PM 4 PM 5 PM 6 PM 7 PM 8 PM 9 PM 10 PM 11 PM

Comments by Time of Day

Shoulder Hours During Curfew 15 minute shoulder (6/2016 – 5/2017)

Operations between 10:00pm – 10:15pm and 6:45am – 7:00am

• Total Operations: 447

• Jet: 163 (36%)

• Turboprop: 34 (8%)

• Piston: 141 (31%)

• Helicopter: 29 (7%)

• Unknown: 80 (18%)

6

Shoulder Hours During Curfew 30 minute shoulder (6/2016 – 5/2017)

Operations between 10:00pm – 10:30pm and 6:30am – 7:00am

• Total Operations: 797

• Jet: 293 (37%)

• Turboprop: 67 (8%)

• Piston: 228 (29%)

• Helicopter: 56 (7%)

• Unknown: 153 (19%)

7

Hush-kit Aircraft (6/2016 – 5/2017)

Conducted a review of the radar data for aircraft modified to be Stage 3 compliant

• Based on their FAA aircraft code there were a total of 274 aircraft operations modified to be Stage 3 compliant

• Less than one percent of the total Jet operations during this period

In order for these to operate in the US they have been re-enginedor hush-kitted (e.g. most Falcon 20’s are re-engined with the same engines as the Lear 35)

Aircraft Type Count Common Name

SBR1 65 Saberliner 65

FA20 204 Falcon 20

H25A 2 Hawker Siddley 125

GLF2 2 Gulfstream II

LJ25 1 Lear 25

Total 274

8

Night Operations (6/2016 – 5/2017)

Summary of Operations during Curfew (10pm – 7am)

• 2,355 Operations

• 1,787 Operations with registration data (76%)

• Almost evenly split between Arrivals and Departures

Focusing on the 76% with registration information

9

Night Operations (6/2016 – 5/2017)

Summary of Operations during Curfew (10pm – 7am)

10

Night Operations (6/2016 – 5/2017)

Jet Only Operations during Curfew (10pm – 7am)

• Co–owned (e.g. NetJets, Flight Options)

• Corporation (e.g. Charter operators)

0%

10%

20%

30%

40%

50%

60%

70%

Co-Owned Corporation Government Individual Non Citizen

Co-Owned

Non Citizen

Corporation

Unknown

26%

68%

0% 0% 0% 0%

5%

Night Operations

Jet Operations

11

Heat Maps Jet Arrivals(6/2016 – 5/2017)

12

Heat Maps Non-Jet Arrivals(6/2016 – 5/2017)

13

Heat Maps Jet Departures(6/2016 – 5/2017)

14

Heat Maps Non-Jet Departures(6/2016 – 5/2017)

15

Radar Data Comparison

We looked at two data feeds and the FAA Tower Count

• Complimentary Harris Feed supplies current system

• FAA National Offload Program (NOP) Feed

• One 30 day period in season (2/17/17 – 3/18/17)

• In general, all three follow the same trend

16

Radar Data Comparison

The Harris feed provides a higher number of Arrivals and Departures

When Local operations are included the NOP feed is higher

They match very well at night (10pm to 7am)

17

Radar Data Comparison

There are many reasons for the differences in the counts

How tracks are split

• Example: Flight that departs APF, does 1 touch-n-go and lands

Tower counts as 1 departure, 2 Local Ops and 1 arrival

In one system this could be all one track and counted as 1 local operation.

In another, it could be two operations, 1 departure and 1 arrival

VFR traffic

• When an arrival aircraft switches to 1200 it breaks the track resulting in two operations – only one should have a runway assignment but both would be assigned to KAPF

Operations from other airports using APF for touch-n-gos

• Radar data will regard this as an overflight since it never lands or departs from KAPF

18

Thank you and Questions?