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KBDU
Boulder, United States
Runway 08
Elevation5,285 ft asl
Weight2,734 lbs
Fuel239 lbs
Wind190° · 4 kn · 4 kn cross

Flight Score

99.46 %
KBDU
Boulder, United States
Runway 08
Elevation5,285 ft asl
Weight2,727 lbs
Fuel232 lbs
9 Nov 2025 0:08 9 nm Beechcraft A36 Bonanza 7 lbs
Departure Score
98.41 %
Enroute Score
100.00 %
Arrival Score
99.96 %

What went well

Touched down at -120 fpm — a soft arrival
Touchdown 730 ft in — inside the full-score zone
Threshold crossed at 17 ft and 71 kt — both inside band

What held you back

Departure Climb 3 — bank angle up to 13.0 ° at 71 %, −0.38 points
Departure Climb 1 — bank angle up to 4.2 ° at 94 %, −0.12 points

Top opportunity

Avoid steep turns at low altitude

Departure Climb 3

Below a thousand feet the aeroplane is slow, heavy and close to the ground. A steep turn loses lift, raises the stall speed and flattens the climb just when the gradient matters most. A normal turn on course is a rate one — fifteen degrees or so, twenty-five at the outside, this penalty is to acknowledge when a turn has stopped being a turn and become a manoeuvre.

Read more in Improve Your Take-Offs

Start to finish · 12 stages, 11 scored

The flight story

Departure One segment per stage, in flight order — colour is the score band. Drag the bar to move along the flight, or click a stage card to open its detail. Arrival
Departure Taxi 100.00Taxiing from the parking to the runway took 2 minutes and covered less than 1 nm.
ScoreDescriptionStartProfileEnd
100 % Average speed 10 kt0 kt min to max 16 kt 0 5 kt
100 % Average speed turning corners 11 ktmax 15 kt 0 0 kt
100 % Average g force 1.00 g1.00 g min to max 1.00 g 1.00 1.00 g
Info Average pitch angle -0.1 °-1.1 ° min to max 0.8 ° 0.0 -1.0 °
Info Average bank angle 0.5 °0.0 ° min to max 1.6 ° 0.0 0.9 °

Events

Info Parking Brake Off 3 ft agl
Info Taxi Lights Switched On 3 ft agl · 9 kt
Departure Runway Entry Entering runway 08 at KBDU Boulder Municipal Airport, Average speed was 8 kt.
ScoreDescriptionStartProfileEnd
Info Average speed 11 kt0 kt min to max 17 kt 0 17 kt
Info Average pitch angle 0.2 °-0.5 ° min to max 0.8 ° -0.5 0.1 °
Info Average bank angle 0.4 °0.0 ° min to max 1.4 ° 0.5 0.2 °
Info Average g force 1.00 g0.99 g min to max 1.00 g 1.00 1.00 g

Events

Info Strobe Lights Switched On 3 ft agl
Info Taxi Lights Switched Off 3 ft agl
Info Landing Lights Switched On 3 ft agl
Info Flaps Position 1 3 ft agl
Departure Roll 100.00Departure roll runway 08 at KBDU Boulder Municipal Airport. Takeoff distance 1,737 ft 45 % of runway. Liftoff speed was 82 kt. Local weather - Temperature 44 °F. Wind 5 kt at 190 °. Crosswind: 4 kt Tailwind: 1 kt.
ScoreDescriptionStartProfileEnd
100 % Takeoff distance 1,737 ft45 % of runway
100 % Liftoff speed was 82 ktTarget 84 kt
100 % Runway alignment max 7.2 ft left7.2 ft left to 0.0 ft left 1.2 6.2 ft
100 % Average g force 1.00 g0.97 g min to max 1.09 g 1.00 1.07 g
100 % Takeoff Bounce
Info Average pitch angle 0.5 °-0.3 ° min to max 5.2 ° 0.1 5.2 °
Info Average bank angle 0.8 °0.2 ° min to max 2.1 ° 0.4 2.1 °
Departure Climb 1 98.16Departure climb to 50 ft agl from runway 08 KBDU Boulder Municipal Airport.
ScoreDescriptionStartProfileEnd
98 % Heading variation -0.7 °-1.1 ° min to max -0.2 ° -0.2 -1.1 °
100 % Average speed 92 kt82 kt min to max 102 kt 82 102 kt
94 % Average bank angle 1.6 °0.0 ° min to max 4.2 ° 2.2 1.2 °
100 % Average g force 1.00 g0.91 g min to max 1.08 g 1.07 1.04 g
Info Average VSI 331 fpm193 fpm min to max 411 fpm 193 316 fpm
Info Average altitude 24 ft agl1 ft agl min to max 54 ft agl 1 54 ft agl
Info Average pitch angle 5.1 °3.7 ° min to max 6.1 ° 5.2 5.8 °

Events

Info Flaps Fully Retracted 19 ft agl · 100 kt
Info Landing Gear Up 37 ft agl · 104 kt
Departure Climb 2 99.68Departure climb to 400 ft agl from 08 KBDU Boulder Municipal Airport.
ScoreDescriptionStartProfileEnd
100 % Heading variation -1.1 °-1.2 ° min to max -1.0 ° -1.1 -1.0 °
100 % Average speed 104 kt102 kt min to max 109 kt 102 109 kt
99 % Average bank angle 0.9 °0.3 ° min to max 2.5 ° 1.2 1.7 °
100 % Average g force 1.07 g0.99 g min to max 1.11 g 1.05 0.99 g
Info Average VSI 635 fpm321 fpm min to max 1,274 fpm 321 1,274 fpm
Info Average altitude 86 ft agl54 ft agl min to max 264 ft agl 54 264 ft agl
Info Average pitch angle 7.5 °5.8 ° min to max 9.0 ° 5.8 9.0 °
Departure Climb 3 94.23Departure climb to 1,000 ft agl from 08 KBDU Boulder Municipal Airport.
ScoreDescriptionStartProfileEnd
100 % Heading variation -0.1 °-0.9 ° min to max 1.3 ° -0.9 1.3 °
100 % Average speed 109 kt108 kt min to max 109 kt 109 109 kt
71 % Average bank angle 7.7 °1.0 ° min to max 13.0 ° 1.0 13.0 °
100 % Average g force 0.99 g0.99 g min to max 1.00 g 1.00 1.00 g
100 % Landing gear up
Info Average VSI 1,319 fpm1,231 fpm min to max 1,370 fpm 1,283 1,231 fpm
Info Average altitude 442 ft agl286 ft agl min to max 593 ft agl 286 593 ft agl
Info Average pitch angle 9.0 °8.3 ° min to max 9.4 ° 9.0 8.3 °
Enroute Climb 100.00Enroute climb started 1 mile south west of Gunbarrel (Colorado, United States). Climbing from 5,904 ft asl to 7,105 ft asl, an increase of 1,201 ft in 2 minutes and covering 3 nm.
ScoreDescriptionStartProfileEnd
100 % Average speed 114 kt108 kt min to max 126 kt 109 115 kt
100 % Average bank angle 7.7 °0.1 ° min to max 18.2 ° 13.8 3.6 °
100 % Average g force 1.01 g0.89 g min to max 1.09 g 1.00 0.94 g
Info Average VSI 549 fpm-818 fpm min to max 1,206 fpm 1,206 538 fpm
Info Average altitude 6,734 ft asl5,904 ft asl min to max 7,173 ft asl 5,904 7,105 ft asl
Info Average pitch angle 4.9 °-1.6 ° min to max 8.2 ° 8.2 4.0 °
Info Turn coordination 00 min to max 0 0 0
Enroute Descent 100.00Enroute descent started overhead CO10 Lemons Private Strip Boulder (Colorado, United States). Descent from 7,111 ft asl to 5,755 ft asl, a decrease of 1,356 ft in 3 minutes and covering 3 nm.
ScoreDescriptionStartProfileEnd
100 % Average speed 97 kt81 kt min to max 114 kt 114 81 kt
100 % Average bank angle 6.4 °2.4 ° min to max 10.6 ° 4.2 2.8 °
100 % Average g force 1.00 g0.87 g min to max 1.07 g 0.91 0.97 g
Info Average VSI -499 fpm-862 fpm min to max 418 fpm 418 -563 fpm
Info Average altitude 6,377 ft asl5,755 ft asl min to max 7,114 ft asl 7,111 5,755 ft asl
Info Average pitch angle 1.0 °-1.4 ° min to max 4.2 ° 3.3 0.1 °
Info Turn coordination 00 min to max 0 0 0

Events

Info Landing Gear Down 1,068 ft agl · 122 kt
Info Flaps Position 1 928 ft agl · 112 kt
Info Flaps Position 2 545 ft agl · 96 kt
Arrival Final 2 100.00Approaching runway 08 at KBDU Boulder Municipal Airport from 2 nm to 1 nm. Descent from 460 ft agl to 300 ft agl. A decrease of 160 ft in 17 seconds.
ScoreDescriptionStartProfileEnd
100 % Approach angle 2.9 °2.8 ° min to max 3.0 °Target 3.0 ° 3.0 2.8 °
100 % Average speed 79 kt77 kt min to max 81 kt 81 77 kt
100 % Heading variation 0.2 °0.0 ° min to max 0.2 ° 0.0 0.2 °
100 % Average bank angle 0.5 °0.1 ° min to max 1.3 ° 1.3 0.2 °
100 % Average g force 1.00 g0.97 g min to max 1.03 g 1.01 1.01 g
Info Average VSI -537 fpm-594 fpm min to max -477 fpm -594 -531 fpm
Info Average altitude 379 ft agl300 ft agl min to max 460 ft agl 460 300 ft agl
Info Average pitch angle 1.2 °0.4 ° min to max 1.7 ° 0.6 1.5 °
11.251.51.752200250300350400450500Distance to Touchdown NMApproach Height ft11.251.51.752-140-105-70-3503570105140Distance to Touchdown NMApproach Runway Alignment ft
Arrival Final 1 100.00Approaching runway 08 at KBDU Boulder Municipal Airport from 1 nm to 0 nm. Descent from 292 ft agl to 21 ft agl. A decrease of 271 ft in 35 seconds.
ScoreDescriptionStartProfileEnd
100 % Approach angle 2.0 °1.4 ° min to max 2.8 °Target 3.0 ° 2.8 1.4 °
100 % Average speed 75 kt72 kt min to max 78 kt 77 72 kt
100 % Heading variation 0.1 °0.0 ° min to max 0.2 ° 0.2 0.0 °
100 % Average bank angle 0.4 °0.0 ° min to max 1.3 ° 0.1 1.0 °
100 % Average g force 1.00 g0.97 g min to max 1.03 g 1.00 1.01 g
Info Average VSI -431 fpm-549 fpm min to max -381 fpm -519 -409 fpm
Info Average altitude 75 ft agl21 ft agl min to max 292 ft agl 292 21 ft agl
Info Average pitch angle 2.5 °1.2 ° min to max 3.4 ° 1.6 3.4 °
00.250.50.751050100150200250300350Distance to Touchdown NMApproach Height ft00.250.50.751-110-83-55-280285583110Distance to Touchdown NMApproach Runway Alignment ft
Arrival Landing 100.00Landing on runway 08 at KBDU Boulder Municipal Airport, runway length 3,875 ft. Good threshold height. Threshold speed was good at 72 kt.
ScoreDescriptionStartProfileEnd
100 % Threshold speed was good at 72 kt. Target 75 kt
100 % Good threshold height.Target 50 ft agl
100 % Perfect landing flare
100 % Runway alignment max 0.0 ft left0.0 ft left to 0.0 ft left 0.0 0.0 ft
100 % Average bank angle 0.7 °0.0 ° min to max 1.2 ° 1.0 0.8 °
100 % Average g force 1.03 g0.97 g min to max 1.08 g 1.02 0.97 g
Info Average speed 69 kt65 kt min to max 72 kt 72 65 kt
Info Average VSI -238 fpm-408 fpm min to max -115 fpm -408 -118 fpm
Info Average altitude 5 ft agl-2 ft agl min to max 16 ft agl 16 -2 ft agl
Info Average pitch angle 4.8 °3.4 ° min to max 5.4 ° 3.4 5.0 °
025050075001123344657Runway Distance ftLanding Height ft0250500750-50-40-30-20-1001020304050Runway Distance ftRunway Width ft
Arrival Touchdown 99.83Touchdown distance was good at 719 ft. Touchdown speed at 65 kt was good. Touchdown rate was smooth at -118 fpm. Runway touchdown alignment was perfect. Local weather - Temperature 44 °F. .
ScoreDescriptionStartProfileEnd
99 % Touchdown rate was -118 fpm.
100 % Touchdown distance was 719 ftTarget 1,500 ft
100 % Speed at touchdown 65 ktTarget below 70 kt
100 % Runway alignment max 2.9 ft left2.8 ft left 2.8 2.8 ft
100 % Average bank angle 0.6 °0.0 ° min to max 1.0 ° 0.8 0.5 °
100 % Average g force 1.04 g0.97 g min to max 1.11 g 0.97 1.04 g
100 % Landing Bounce
Info Average speed 64 kt64 kt min to max 65 kt 65 64 kt
Info Average pitch angle 5.0 °4.8 ° min to max 5.0 ° 5.0 4.8 °

Takeoff

OkTaxi lightsSet
100.00Takeoff roll1,800 ft · 46 %
100.00Liftoff speed81 kt · target 84, 3 slow
100.00Runway alignment7.2 ft L
OkBounce on takeoffNone
98.16Rate of climb331 fpm

Landing

The threshold, the flare and the hold-off. The approach that led to it is the stabilisation gates below.

100.00Threshold height17 ft
100.00Threshold speed71 kt · target 69, 2 fast
100.00Centreline offset0.0 ft L
Flare 100.00Perfect landing flare

The stabilisation gates

One stabilised approach gate: seven checks where the approach path is 500 ft above the runway. The 1,000 ft gate was not assessed, because the approach did not join final that far out.

Seven checks, one gate500 ft
Gear down
Landing flap
Sink rate
On glideslope
On centreline
On speed
Wings level

At the 500 ft gate: off the centreline.

The approach, gate by gate

Gate Height Centreline Speed
1.0 nm 356 ft 0.28° L +9 kt
0.5 nm 172 ft 0.38° L +9 kt
THR 17 ft 1.1 ft L +3 kt

Touchdown on KBDU 08

Past threshold100.00
730ft
Centreline100.00
2.8ft L
Speed100.00
64kttarget 67 or less
Touchdown rate99.32
-120fpm
Impact100.00
1.11G
BouncesOk
None

Side view — the last 3,875 ft of the approach.

17 ft over the threshold · target 50 ft 80 ft400 Ideal — 50 ft, down at 1,000 ft This flight — 17 ft, down at 730 ft

Plan view — the full 3,875 ft runway, to the same scale as the side view.

1,0002,0003,000 THRESHOLD FULL SCORE TO 1,650 FT 730 ft past threshold CLEARED

The 730 ft touchdown sits inside the full-score zone. The arrival was smooth.

Runway used 730 ft of 3,875 ft · 19 %

The rest of the report

Explore in detail

Flight narrative

The flight began with the aircraft, a Beechcraft A36 Bonanza, taxiing from the parking area to the runway at KBDU Boulder Municipal Airport. This process took approximately 2 minutes and covered a distance of less than 1 nautical mile. The aircraft then departed from runway 08, with a takeoff distance of 1,737 feet, which is 45% of the runway length. The liftoff speed was 82 knots.

The local weather conditions at the time of departure were characterized by a temperature of 44°F and a wind speed of 5 knots from a direction of 190°. The crosswind component was 4 knots, while the tailwind component was 1 knot. The aircraft began its enroute climb approximately 1 mile southwest of Gunbarrel, Colorado, and ascended from an altitude of 5,904 feet above sea level to 7,105 feet above sea level, an increase of 1,201 feet in 2 minutes, covering a distance of 3 nautical miles.

As the aircraft continued its journey, it began its enroute descent overhead CO10 Lemons Private Strip Boulder, Colorado. The descent took place from an altitude of 7,111 feet above sea level to 5,755 feet above sea level, a decrease of 1,356 feet in 3 minutes, covering a distance of 3 nautical miles. The aircraft then began its final approach to runway 08 at KBDU Boulder Municipal Airport from the west, heading 89.0° at an altitude of 460 feet above ground level and a distance of 1 nautical mile from the runway.

The landing was successful, with the aircraft touching down on the runway at a speed of 65 knots. The touchdown distance was 719 feet, and the touchdown rate was smooth at -118 feet per minute. The runway touchdown alignment was perfect, and the threshold speed was good at 72 knots. The local weather conditions remained the same, with a temperature of 44°F.

In total, the flight covered a distance of 9 nautical miles and took approximately 8 minutes to complete. The aircraft used 7 pounds of fuel during the flight.

Flight map
Replay this flight in 3D The full flight path over the terrain with every stage, event and score along the route.
Takeoff report
Takeoff on runway 08 at KBDU Boulder Municipal Airport in the Beechcraft Bonanza A36
98.41 %
100 %
Taxi
Taxiing from the parking to the runway took 2 minutes and covered less than 1 nm.
Taxi Lights
100 %
Switched On
Ground Speed kt
100 %
30 15 0
Turn Speed
100 %
30 15 0
G
100 %
1.25 1 0.75
Bank °
Info
2 1 0
Pitch °
Info
1 0 -1
100 %
Takeoff Roll
Departure roll runway 08 at KBDU Boulder Municipal Airport. Takeoff distance 1,737 ft 45 % of runway. Liftoff speed was 82 kt. Local weather - Temperature 44 °F. Wind 5 kt at 190 °. Crosswind: 4 kt Tailwind: 1 kt.
Takeoff Distance
100 %
Roll distance of 1,737 ft using 44.83 % of runway
Liftoff Speed
100 %
Liftoff speed was 82 kn - Target 84 kn
Alignment
100 %
7.2 ft left to 0.0 ft left
Bounce
100 %
No Bounce Detected
Strobe Lights
100 %
Switched On
Landing Lights
100 %
Switched On
G
100 %
1.5 1 0.5
IAS kt
Info
90 50 10
Bank °
Info
3 1.5 0
Pitch °
Info
6 3 0
01,0002,0003,000-50-40-30-20-1001020304050 Runway Distance ft Runway Alignment to End of Runway ft
98.16 %
Climb 1
Departure climb to 50 ft agl from runway 08 KBDU Boulder Municipal Airport.
Alignment
98.44 %
2 0 -2
IAS kt
100 %
110 95 80
Bank °
94.18 %
5 2.5 0
G
100 %
1.5 1 0.5
Pitch °
Info
7 5 3
Climb Rate fpm
Info
500 200 -100
99.68 %
Climb 2
Departure climb to 400 ft agl from 08 KBDU Boulder Municipal Airport.
Alignment
100 %
2 0 -2
IAS kt
100 %
110 105 100
Bank °
98.74 %
3 1.5 0
G
100 %
1.5 1 0.5
Pitch °
Info
9 7 5
Climb Rate fpm
Info
1,300 750 200
94.23 %
Climb 3
Departure climb to 1,000 ft agl from 08 KBDU Boulder Municipal Airport.
Alignment
100 %
2 0 -2
IAS kt
100 %
110 105 100
Bank °
71.13 %
13 7 1
G
100 %
1.5 1 0.5
Pitch °
Info
10 9 8
Climb Rate fpm
Info
1,400 1,250 1,100
01,0002,0003,00001122334455 Runway Distance ft Height at End of Runway ft
00.250.50.7510100200300400500 Climb Distance NM Climb Profile to 1,000 ft
00.250.50.751-200-160-120-80-4004080120160200 Climb Distance NM Runway Alignment in (ft) to 1,000 ft
Landing report
Landing on runway 08 at KBDU Boulder Municipal Airport in the Beechcraft Bonanza A36
Landing Score 99.94 %
Landing Summary

The Beechcraft A36 Bonanza successfully landed at KBDU Boulder Municipal Airport, achieving a near-perfect score of 99.9%. The aircraft approached the runway from the west, heading 89.0° at a distance of 1 nautical mile and an altitude of 460 feet above ground level (agl). This indicates a precise and controlled approach, with the pilot maintaining a steady heading and altitude.

Upon reaching the runway, the aircraft touched down smoothly, with a touchdown speed of 65 knots being well within the acceptable range. The threshold speed of 72 knots was also met, demonstrating the pilot's ability to manage the aircraft's speed during the final stages of the approach. The touchdown distance of 719 feet was also satisfactory, given the runway length of 3,875 feet.

The local weather conditions at the time of the landing were characterized by a temperature of 44°F, which is relatively cool. However, this did not appear to affect the aircraft's performance or the pilot's ability to execute a smooth landing. The touchdown rate of -118 feet per minute (fpm) was also smooth, indicating that the aircraft was brought to a stop quickly and safely.

One of the most impressive aspects of this landing was the perfect runway touchdown alignment. This suggests that the pilot was able to maintain a steady heading and altitude throughout the approach, and that the aircraft was aligned with the runway centerline at the moment of touchdown. This level of precision is a testament to the pilot's skill and experience, and is a key factor in ensuring a safe and successful landing. Overall, this landing was a textbook example of a well-executed approach and landing, with the pilot demonstrating a high level of proficiency and control.

100 %
Final 2
Approaching runway 08 at KBDU Boulder Municipal Airport from 2 nm to 1 nm. Descent from 460 ft agl to 300 ft agl. A decrease of 160 ft in 17 seconds.
Glideslope
100 %
Excellent glideslope alignment
Heading
100 %
Excellent heading alignment
Glideslope °
100 %
4 3 2
IAS kt
100 %
81 76 70
Alignment
100 %
0.5 0 -0.5
Bank °
100 %
3 1.5 0
G
100 %
1.5 1 0.5
Descent Rate fpm
Info
-477 -539 -600
11.251.51.752200250300350400450500 Distance to Touchdown NM Approach Height ft
11.251.51.752-140-105-70-3503570105140 Distance to Touchdown NM Approach Runway Alignment ft
100 %
Final 1
Approaching runway 08 at KBDU Boulder Municipal Airport from 1 nm to 0 nm. Descent from 292 ft agl to 21 ft agl. A decrease of 271 ft in 35 seconds.
Glideslope
100 %
Excellent glideslope alignment
Heading
100 %
Excellent heading alignment
Glideslope °
100 %
4 3 2
IAS kt
100 %
78 74 70
Alignment
100 %
0.5 0 -0.5
Bank °
100 %
2 1 0
G
100 %
1.5 1 0.5
Descent Rate fpm
Info
-381 -491 -600
00.250.50.751050100150200250300350 Distance to Touchdown NM Approach Height ft
00.250.50.751-110-83-55-280285583110 Distance to Touchdown NM Approach Runway Alignment ft
100 %
Landing
Landing on runway 08 at KBDU Boulder Municipal Airport, runway length 3,875 ft. Good threshold height. Threshold speed was good at 72 kt.
Height
100 %
Good threshold height. Target 50 ft agl
Speed
100 %
Threshold speed was good at 72 kt. Target 75 kt
Flare
100 %
Perfect landing flare
Centreline ft
100 %
100 0 -100
Bank °
100 %
2 1 0
G
100 %
1.5 1 0.5
IAS kt
Info
72 66 60
Pitch °
Info
6 4.5 3
Descent Rate fpm
Info
-115 -308 -500
025050075001123344657 Runway Distance ft Landing Height ft
0250500750-50-40-30-20-1001020304050 Runway Distance ft Runway Width ft
99.83 %
Touchdown
Touchdown distance was good at 719 ft. Touchdown speed at 65 kt was good. Touchdown rate was smooth at -118 fpm. Runway touchdown alignment was perfect. Local weather - Temperature 44 °F. .
Touchdown
99.32 %
Touchdown rate was smooth at -120 fpm.
Speed
100 %
Touchdown speed at 65 kt was good. Target below 70 kn
Distance
100 %
Touchdown distance was good at 719 ft.
Alignment
100 %
Runway touchdown alignment was perfect.
Bank
100 %
Bank angle 0.6 °
G
100 %
G 1.04 g
Bounce
100 %
No Bounce Detected
Metrics
Metrics

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