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Demo pilot. An invented private pilot with two years of flying, a co-owned Cessna 172 and an instrument rating in progress. Nothing here saves. Start your own with your logbook: the first 30 days are free.

Overview

Tue, Oct 20

Illustrative demo data

BETA TESTINGFree for users Log flight
N4521RCessna 172N Partnership

Aircraft costs, maintenance & partners follow this selection.

Needs attention

  • Cylinder 3 running hotOct 12 · View details

    Peak CHT 432 °F on Oct 12, 2026. Most engine makers suggest keeping CHT under about 400 °F for a long life.

    Keep an eye on it Open the records

  • Cylinders running far apartOct 12 · View details

    At cruise on Oct 12, 2026, CHTs 354–427 °F: 73 °F apart.

    Keep an eye on it Open the records

Engine & flight watch · N4521R, compared with your own history. A prompt for a talk with your mechanic, not a diagnosis.

FlyingAll aircraft

Logbook
5.6 hThis month
68.4 hThis year
77.8 hLast 12 mo
Nov: 4.7 hDec: 2.6 hJan: 1.1 hFeb: 7.9 hMar: 8.9 hApr: 7.5 hMay: 11.9 hJun: 4.4 hJul: 4.8 hAug: 7.2 hSep: 9.1 hOct: 5.6 h

NovBusiest month 11.9 hOct

Currency

Details
3 Current0 Expiring soon1 Lapsed
N4521R · Cessna 172N

Aircraft costs

Details

N4521R · Last 12 months

$185.12 /hAll-in · est
$64.13 /hDirect · est

Maintenance

Details

N4521R

Hours to TBO663.4 h
Projected: November 2035

Partners

Details

N4521R · this year

Period balances

From your logbook and the inputs you entered. Ideas, not advice.