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Aero Center

Navigation log

A navigation log in Aero Center is a planning worksheet. It does not replace current charts, a NOTAM review, an official weather briefing, aircraft performance data or the pilot in command’s judgment. Verify every value before flight.

Planning assistance only

Aero Center navigation logs and calculations are provided for flight planning assistance only and do not replace the pilot in command's primary calculations, aircraft POH/AFM, current aeronautical charts, official weather briefings, NOTAMs, or regulatory requirements. Aero Center does not certify flight legality or safety.

Saved routes:

Aero Center demo aeronautical extract · Demo extract — not an authorized aviation data source and not current. Verify every identifier, frequency and coordinate against official charts and publications. · cycle demo cycle 2609 · retrieved 2026-09-01

Route points
  1. 1KPAO Palo AltoAirport · 37.461, -122.115
  2. 2OSI Woodside VORTACVORTAC · 37.393, -122.282
  3. 3SNS Salinas VORTACVORTAC · 36.664, -121.603
  4. 4KMRY Monterey RegionalAirport · 36.587, -121.843

Cessna 172SP · source: Skyline Flight Academy planning card, derived from the aircraft flight manual cruise tables · revision 2026-05-18 · Organization approved

Aero Center does not choose a cruising altitude for you. The pilot in command selects and verifies an altitude appropriate to the direction of flight, the rules of flight and terrain.

Multi-stage climb performance

Each stage begins at its actual starting altitude. Earlier climb fuel is subtracted from later segment weight when the aircraft fuel conversion is available.

Stage 1: KPAO

Departure climb

Pressure / density altitude

PA 4 ft

DA requires OAT

Estimated time

11 min

Estimated distance

14.5 nm

Estimated fuel burn

2.2 gal

Top of climb

5.6 nm into OSI → SNS

Applicable POH/AFM performance data

Cessna 172S POH Section 5 — Time, Fuel and Distance to Climb (maximum rate of climb) · Flaps up, full throttle, standard temperature, zero wind, mixture leaned above 3,000 ft.

Published at 2,550 lb and 78 KIAS. Interpolated from 4 ft to 5,500 ft; temperature correction 0%.

Start, taxi and takeoff fuel is separate from climb-segment fuel. Weight cascading uses only recorded climb fuel and the selected aircraft’s sourced fuel weight conversion.

Compass deviation card — N172SP

N172SP compass correction card on the glareshield · swung 2026-03-14

Deviation for each leg is read from this card at that leg's magnetic heading. Compass heading matters most when you are flying the magnetic compass, so check the card fitted to the aircraft before you fly.

Forecast winds

Winds and temperatures aloft (FD) — demo extract · issued 19 Sep 2026 14:45Z · valid 19 Sep 2026 18:00Z to 20 Sep 2026 00:00Z · retrieved 19 Sep 2026 15:02Z

Demo weather extract — treat these winds as out of date and obtain an official briefing before flight.

Leg calculations

Columns follow the conventional order: TC ± WCA = TH, TH − variation (east) = MH, MH ± deviation = CH. Every cell shows where its value came from — the chip under each box marks calculated values, route-database values, aircraft data and anything you typed.

LegPlanned altitude (ft)Wind direction (true)Wind speed (kt)IAS (kt)TAS (kt)TC — true courseWCA — wind correction angleTH — true headingVar — magnetic variation (E+)MH — magnetic headingDev — compass deviationCH — compass headingMC — magnetic courseGS — groundspeed (kt)Distance (nm)ETE (min)Fuel flow (gph)Leg fuel (gal)

KPAO → OSI

Recognized point

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OSI → SNS

Recognized point

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SNS → KMRY

Recognized point

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Totals

Distance
75.8 nm
Time en route
0:38
Cruise fuel
5.34 gal
Taxi, climb & descent
3.5 gal
Reserve (45 min)
6.3 gal
Total required
15.14 gal
Remaining of fuel on board
24.86 gal

Estimated time over each checkpoint

PointETOCumulative
KPAO09:000 nm · 0:00
OSI09:058.9 nm · 0:05
SNS09:3163.4 nm · 0:31
KMRY09:3875.8 nm · 0:38

Frequencies

  • KPAO ATIS 135.275 · Tower 118.600 · Ground 125.000
  • OSI VORTAC 113.90
  • SNS VORTAC 117.30
  • KMRY ATIS 119.500 · Tower 118.400
  • Only frequencies present in the point table are shown. Verify every frequency against current sources.

Route planning map

Departure, checkpoints, destination and alternates, redrawn whenever the route changes.

Departure Destination Alternate Checkpoint Custom waypoint Active leg

Displayed base: General Planning Map — Continuously updated street/terrain data · © OpenStreetMap contributors. Observation and forecast products are identified separately above; use their published timestamps and valid periods.

Chart source & currency

This planning map is drawn on a general-purpose base map. It is not a VFR sectional and has no 56-day chart cycle. Airspace, obstacles, terrain clearance and chart currency must come from the current FAA sectional or an approved chart product.

Aero Center route maps and navigation logs are for flight planning assistance only and do not replace official aeronautical charts, NOTAMs, or pilot calculations.

FAA digital VFR charts FAA VFR chart viewer (SkyVector) Official weather briefing — 1800wxbrief Aviation Weather Center

Saved checkpoints available: Crystal Springs dam, Bridgeport Lake, Salinas River bend