Vuelo ID: 1784

Lil Nuke - Flight with 4 altimeters - 1

Resumen del vuelo

Altitud

Apogeo

756.82 Metros

Tiempo al apogeo

11.48 seconds

Altitud fin combustión

119.99 m

Altitud vel. máx.

137.51 m

Altitud eyección

210.8 m

Altitud aterrizaje

-1.97 m

Estabilidad

Puntuación estabilidad

85.9 / 100 (Excelente)

Inclinación al apagado (20%)94.1

Cabeceo/guiñada (30%)93.9

Coning · boost (25%)78

Rectitud de empuje (15%)80.5

Launch tilt 2.3° · Coning 25.3/53°/s · Spin 441.3°/s · Thrust 95.9%

About this score

Worked out from the flight log between liftoff and 80% of apogee, independent of the angle the altimeter was mounted at in the airframe.

Inclinación al apagado (20%) – how close to vertical it left the rod.

Cabeceo/guiñada (30%) and Coning · boost (25%) – how much the nose swung off the rocket's own axis. The main factor.

Rectitud de empuje (15%) – how cleanly the motor pushed along the body.

Spin about the rocket's own axis is not counted against it — a fast, straight spin is stable. The line under the bars shows the raw measurements.

Velocidad

Máx. ascenso

155.99 m/s

Máx. descenso

-10.38 m/s

En fin combustión

155.880 m/s

Vel. aterrizaje

-7.016 m/s

Vel. descenso

-6.438 m/s

Vel. eyección

133.63 m/s

Recovery

Single deploy (no dual deploy detected)

Aceleración

Máx. ascenso

31.05 G

Máx. descenso

43.96 G

Máx. durante combustión

17.26 G

Prom. ascenso

1.23 G

Prom. combustión

11.99 G

Tiempos

Fin combustión (primero)

1.39 seconds

Apogeo

11.48 seconds

Posible eyección

1.993 seconds

Aterrizaje

129.36 seconds

Salida #1 ON

0 seconds

Salida #1 OFF

0 seconds

Ángulos

Inclinación rampa

1.56°

Thrust calc pad tilt

2.3°

Incl. máx. hasta fin comb.

19.87°

Alabeo al lanzamiento

-0.42°

Cabeceo al lanzamiento

-1.50°

Giro máx. (comb.)

1332.99 dps

Giro prom. (comb.)

324.26 dps

General

Fecha subida

14-Jun at 14:55

Muestras de datos

12578

Tiempo total grabación

155.000 s

Prom. muestras/s

81.1

Número de bloqueos

Altitud grabación

41.06 m

Lanzamiento tras encendido

7m 8s

Eje de referencia

Batería & temperatura

Batería inicio

90%

Batería fin

82%

Temperatura inicio

27.1°C

Temperatura fin

28.41°C

Temp. MT1 lanzamiento

0°C

Reglas de salida

Sin reglas configuradas

Animación de datos

FLIGHT 1784

756.82 Meters

ALTITUDE

0.00m

VELOCITY

0.00m/s

ACCEL

0.00G

TILT

0.00°

PITCH

0.00°

ROLL

0.00°

YAW

0.00°

TIME

0.00s

AWAITING LAUNCH

ALT

altimetercloud.com

LAUNCH T+0.00s LANDING

Nota: La animación de vuelo requiere que su altímetro esté montado en una orientación fija. Calibre sus sensores para mejores resultados.

Notas del usuario

A test of 2x Mercury and 2x Nano altimeters in a Lil Nuke with a G80 Aerotech motors.

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Vídeo Youtube

Sin vídeo

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Imágenes del vuelo (0)

Sin imágenes

Cohete vinculado

✅ Active

My Lil Nuke #1

LOC Precision — Lil' Nuke

✈️ 7 flights linked

Type

Kit build

Diameter

57.4mm

Length

749.3mm

Dry weight

368.5g

Mod

Modified

Stages

Fins

Recovery

Parachute

Chute

61cm

Body

Loc paper tube

💬 7 comments · 👍 2 reactions

View rocket

Sim data from sim files

Motor	Alt	Vel	Accel	Apogee	Source
Estes A8-3	135.3 m	64.8 m/s	29.6 G	4.5 s	RockSim (estes_viking.rkt)
Estes B4-4	282.9 m	105.3 m/s	30.0 G	6.1 s	RockSim (estes_viking.rkt)
Estes B6-4	288.1 m	116.9 m/s	31.0 G	5.9 s	RockSim (estes_viking.rkt)
Estes C6-5	475.1 m	171.4 m/s	34.4 G	7.5 s	RockSim (estes_viking.rkt)
Estes C6-7	483.1 m	171.4 m/s	34.4 G	8.1 s	RockSim (estes_viking.rkt)

Información del dispositivo

Mercury V1

Este vuelo se realizó con un Mercury V1.

Versión hardware

Rev 3

Versión software

2.40

Última conexión

14-Jun at 14:55

Acelerómetro

32G 3-axis

Giroscopio

2000 dgps 3-axis

Sensor presión

Bosch BMP 581

Magnetómetro

N/A

1 Más de este altímetro → 1 Tag: #TEST-RIGHT-4 → Especificaciones del altímetro →

Motores del vuelo

1st Stage

AeroTech

G80T-10

Details ▾

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Combustión del motor

The dashed line is the combined thrust curve for your motors (data from thrustcurve.org), scaled so its peak matches the recorded acceleration maximum — the shape is meaningful, the absolute level is not (your rocket's weight is unknown).

Sitio de lanzamiento, fecha y hora

Clic en el mapa · Arrastre para ajustar

Lat— Lng—

✓ Launch location saved successfully.

✗ Could not save location — please try again.

Reglas de salida

Las reglas permiten al Mercury realizar acciones según las condiciones de vuelo. Cada regla tiene hasta 4 condiciones (A-D).

Rule 1

After launch onlyANY condition (OR)Active during lockout

ACTION:OUTPUT #1

Conditions

AData 300>0

BHighest Gyro axis (dps)>0

CAcc magnitude (G)>0

DAcc magnitude (G)>0

❌No se activó

Rule 2

After launch onlyANY condition (OR)Active during lockout

ACTION:Action 6000000

Conditions

AData 250>0

BAltitude above pad (m)>0

CAltitude above pad (m)>0

DAltitude above pad (m)>0

❌No se activó

Rule 3

After launch onlyANY condition (OR)Active during lockout

ACTION:OUTPUT #1

Conditions

AAltitude above pad (m)>0

BAltitude above pad (m)>0

CAltitude above pad (m)>0

DAltitude above pad (m)>0

❌No se activó

Rule 4

After launch onlyANY condition (OR)Active during lockout

ACTION:OUTPUT #1

Conditions

AAltitude above pad (m)>0

BAltitude above pad (m)>0

CAltitude above pad (m)>0

DAltitude above pad (m)>0

❌No se activó

Rule 5

After launch onlyANY condition (OR)Active during lockout

ACTION:OUTPUT #1

Conditions

AAltitude above pad (m)>0

BAltitude above pad (m)>0

CAltitude above pad (m)>0

DAltitude above pad (m)>0

❌No se activó

Rule 6

After launch onlyANY condition (OR)Active during lockout

ACTION:OUTPUT #1

Conditions

AAltitude above pad (m)>0

BAltitude above pad (m)>0

CAltitude above pad (m)>0

DAltitude above pad (m)>0

❌No se activó

Coincidencia motor (BETA)

Aún en modo de prueba. Estamos averiguando qué motor se usó en el vuelo.

Marca

Motor

Puntos

Forma

Comb.

AeroTech

J615ST

142

92.9%

97.5%

AeroTech

H195NBT

110

81.5%

96.9%

Cesaroni

G118-BS

105

83.5%

95.9%

Cesaroni

G125-RL

104

84.3%

94.4%

AeroTech

I600R

104

82.8%

91.1%

AeroTech

J825R

104

84.7%

94.7%

Cesaroni

H163-WT

100

82%

95.5%

Cesaroni

G83-BS

84.1%

94.3%

Cesaroni

H133-BS

86%

94.2%

Cesaroni

H255-BS

85.8%

91.3%

Comparación de vuelo

Comparing against 3 other flights with the same motor configuration.

Highest apogee756.82 m 1st of 4

The maximum altitude reached above the launch point.

you

best

best 756.82 m · you

Best stability85.9 /100 3rd of 4

How straight it flew: launch, coning and thrust straightness combined. 100 is perfect.

you

best

best 86.2 /100 · Lil Nuke - Flight with 4 altimeters - 4 (#1796)

Fastest velocity155.99 m/s 3rd of 4

Peak ascent velocity recorded during the flight.

you

best

best 159.41 m/s · Lil Nuke - Flight with 4 altimeters - 4 (#1796)

Best avg burn G11.98 G 1st of 4

Average acceleration during the motor burn, in G.

you

best

best 11.98 G · you

Longest flight155 s 1st of 4

Total recording time from launch to landing.

you

best

best 155 s · you

Lowest spin324.26 dps 1st of 4

Average spin rate during the burn.

you

best

best 324.26 dps · you

Coldest flight27.1 C 4th of 4

Board temperature at launch.

you

best

best 0.28 C · Lil Nuke - Flight with 4 altimeters - 3 (#1786)

🌲 Is it in a tree?41.06 m 4th of 4

Just for fun: whichever flight came down closest to 8 m above the launch point (roughly tree height) is the one most likely stuck up a tree.

8 m

you

best

closest to 8 m · Lil Nuke - Flight with 4 altimeters - 4 (#1796) at -2.02 m

Ajustes generales del vuelo

Esta es una captura de los ajustes utilizados para este vuelo. Visite la Visite la página Mis dispositivos y configure los ajustes..

Presión prevista

Set this to your local forecast pressure at sea level. This will offer you slightly improved accuracty for your flight, although it's not 100% essential every little helps!

Xcweather.co.uk is a decent place to grab pressures from for your location and time.

1013.2 mbar

Detección lanzamiento

This is the altitude above the launch pad altitude where the altimeter will trigger itself into recording / flight mode.

The altimeter keeps a constant average of the pressure while waiting for launch, it uses a simple algorithm and the pre-flight buffers to do this. The most recent 120 samples (~4 seconds) are ignored so your pre-trigger altitude won't effect the ground baseline.

For almost all uses we suggest keeping this on the 25 Meter (~82 feet) default settings. If you want to test your altimeter by throwing it in the air, or are planning a very low flight you may want to lower the setting.

25 meters

Sample ratio

The altimeter runs at 50Hz however you can record every sample or every X samples in order to extend the log time. For example if you set the ratio to 1 it will save 1:1 samples, or if you set it to 3 it will save 1 in 3 samples.

Max samples

This is the maximum samples the altimeter will log per flight. When it reaches this amount it will stop and save the recording.

18000

Recording stop

This setting is how the altimeter decides to stop recording. You can choose either 450 (~9s) or 900 (~18s) samples stable or it will record until the max samples limit unless you press the BUTTON in Manual stop mode.

The samples stable method waits for the devices altitude not to change for the set number of samples. This is defined by not changing by more than +/- 1.0 meters for 98% of the samples, it's a reliable method to stop the recording after landing within 8-10 seconds (300 sample) or 16-20 seconds (600 sample).

Auto: 450 samples stable (~9s)

Oversampling

Oversampling is a internal setting of the BMP 390 pressure sensor. It is how many samples are taken for each reading. By taking multiple samples for each pressure reading the altimeter reduces noise and increases the resolution of the output.

The sensor can run at 50 samples per second in 4X mode, so we suggest leaving it in this mode as it will offer the highest accuracy.

16x Oversampling

IIR filter

The IIR filter is another internal sensor for the BMP390 pressure sensor. It is a Infinite impulse response filter used to enhance pressure measurement accuracy by reducing noise. It's primarily for smoothing out rapid pressure changes.

We suggest not setting this too high as it will cause delay to changes in altitude if set very high.

COEFF 7

Pressure filter

This filter is a software Kalman filter that runs on the altimeters processor.

The Kalman filter uses a prediction step based on a system model and then a correction step using new measurements to refine its estimate, it creates accurate most certain results from data with noise in it.

Kalman 2 (default)

Lockout change

This is how we detect a lockout. If the pressure changes by this much in a single sample downwards (pressure increase, lower altitude) then it's likely to be a false reading. Multiply the setting by 32 to get the speed in meters per second that it will trigger at.

0.5 meters

Sync sensors

The filters on the pressure sensor can cause it to lag very slightly behind the Accelerometer and Gyroscope data. The Sync sensors option detects how far out of sync these sensors are. It then corrects the Acceleration and Gyroscope readings to match the pressure sensor.

ACTIVADO (17 samples / 88.00ms)

Orientation

This is the orientation you intend to install the Altimeter in your rocket. It's needed to ensure completly accurate angles and orientation charts and reports. Check out the Manual for more information on this.

Upwards (text up)

IMU filter

The IMU filter, or fusion filter takes the data from each axis of the Gyroscope and Accelerometer to calculate the Pitch, Roll, Yaw and tilt angle from vertical. These filters can build up some discrepency over time so it's important to calibrate your sensors to minimise this.

Madgwick 6-Axis

Launch ALP

This is prevention against accidental launch detection.

With this disabled the launch is based only on pressure and something that creates a low pressure can trigger the flight by accident. For example pulling your nose cone off can even trigger it.

With this enabled the rocket also needs to have seen 8 samples (0.25 seconds) of acceleration above this setting in the last 3 seconds as well as the pressure drop to trigger. There is a backup trigger of 1.05 seconds of altitude being above the launch detect setting too.

There are very few situations where this option would cause issues, so we suggest leaving it on.

1.4G

Launch lock

When enabled, the altimeter locks out recording for a set period after power on to prevent false triggering during setup.

DISABLED

Static temperature

A fixed temperature value used for altitude calculation when the external temperature sensor is disabled or not connected.

15.00 °C

Temp sensor

If an external MT1 temperature sensor is connected, this controls whether it is used for logging only or also for altitude calculations.

DISABLED

Ajustes de salida

Esta es una captura de los ajustes utilizados para este vuelo.

Salida 1 activada

Disable or enable the output from being able to turn on or off.

DESACTIVADO

Salida 1 disparador

After apogee (altitude)

This method triggers when the altitude drops below the set altitude after apogee is detected.

After apogee (time)

This method triggers the defined seconds after apogee is detected.

After launch (altitude)

This method is activated if/once the altimeter exceeds the set altitude after launch.

After launch (time)

This option triggers the defined seconds after launch is detected.

After burnout (time)

This method triggers the defined seconds after burnout is detected.

After apogee (altitude)

Salida 1 tiempo encendido

This is how long the output should trigger ON state when the rules are met.

2000ms

Salida 1 altitud

This is the altitude to trigger at if using a trigger method that works on altitude.

For example if you set this to 75m and After apogee (altitude) for the trigger then the output will turn on at 75m on descent above the launch altitude.

0 meters

Salida 1 tiempo

This is the time variable for output triggers that work on time.

For example if you set this to 3 seconds and After apogee (time) as the trigger then the output will turn on 3 seconds after apogee.

0 seconds

Bloqueo altitud

Altitude lock is a safety feature that prevents the output from triggering if the altitude is below this level when the rules are met.

0.00 m

Bloqueo inclinación

This is another safety feature. It can be used to disable the output if the rocket has gone too far from vertical.

For example if you set the tilt angle lock to 40 degrees then the output will not fire if the rocket is more than 40 degrees from vertical. To disable set this to 0.

0.00 °

Calibración de sensores

Compensaciones de calibración usadas en este vuelo.

Giroscopio

0.180°

0.140°

1.000°

Acelerómetro

23.010 mG

3.090 mG

27.650 mG

Ajustes del dispositivo

Esta es una captura de los ajustes utilizados para este vuelo.

TAG dispositivo

A custom name or tag assigned to this device for easy identification.

TEST-RIGHT-4

Idioma

The language setting configured on the device.

Modo apagado

Controls what happens after recording. Standard shuts down normally, Delayed keeps WiFi on for 30 seconds after landing, Stay on keeps the device powered on.

Delayed 30s

Brillo LED

The brightness level of the LED indicators on the Mercury. Lower values save battery.

20%

Potencia WiFi TX

WiFi transmit power level. Higher gives better range but uses more battery.

2 dBm (low)

Modo reposo

Controls whether the device enters low-power sleep when idle.

Normal (sleep when idle)

Monitor batería

Monitors battery voltage during the flight.

DISABLED

Grupo cloud

The cloud group / category this flight is assigned to.

Puertos GP6 / GP7

Configuración de los puertos GP6 y GP7 para canales pirotécnicos, servos u otros.

Modo canal 6

ON = HIGH

Ch6 min pulse (µs)

Ch6 max pulse (µs)

Ch6 frequency

0 Hz

Ch6 angle ON

0.00°

Ch6 angle OFF

0.00°

Ch6 on time

0.00s

Modo canal 7

ON = HIGH

Ch7 min pulse (µs)

Ch7 max pulse (µs)

Ch7 frequency

0 Hz

Ch7 angle ON

0.00°

Ch7 angle OFF

0.00°

Ch7 on time

0.00s

Placa servo I2C PCA9685

Esta es una captura de los ajustes utilizados para este vuelo.

Configuration for the external I2C PCA9685 servo expansion board. This board provides up to 6 additional servo channels.

No I2C servo board was connected for this flight.

Predicción y aerofrenos

Esta es una captura de los ajustes utilizados para este vuelo.

El Mercury puede predecir el apogeo durante la fase de planeo. Estos ajustes controlan el cálculo y el aerofreno.

Masa seca

The total mass of the rocket after motor burnout (dry mass). This is used for the ballistic prediction of apogee altitude. Enter the mass without the motor propellant, or the mass at burnout.

$tc_not_configured

Coef. arrastre

The aerodynamic drag coefficient (Cd) of the rocket. This is used with the rocket area to calculate aerodynamic drag during coast. A typical model rocket has a Cd of 0.4 to 0.8. You can find this value from OpenRocket or RockSim simulations.

$tc_not_configured

Área referencia

The cross-sectional reference area of the rocket in square meters. This is typically the area of a circle with the body tube diameter. For example a 38mm tube has an area of approximately 0.00113 m².

$tc_not_configured

Gas constant

The specific gas constant for dry air, used in the atmospheric model for altitude and density calculations. The standard value is 287.05 J/(kg·K). You shouldn't need to change this unless you know what you're doing.

$tc_not_configured

Los siguientes ajustes configuran el sistema de aerofreno.

Aerofreno activado

Enables or disables the active air braking system. When enabled, the Mercury will deploy air brakes via the configured servo channel to try and reach the target altitude. Firmware 2.1+ required.

OFF (default)

Servo channel

Which servo output channel the air brake mechanism is connected to. GP6 and GP7 are the two onboard servo headers, I2C channels are for an external servo expander board.

GP6

Deploy speed

The speed at which the air brakes deploy. The Mercury gradually increases the servo angle until the predicted apogee matches the target rather than going full on/off. This setting controls how quickly it ramps up to full braking.

Medium (default)

Altitud objetivo

The target apogee altitude in meters. The air brake system will try to slow the rocket so it reaches this altitude.

$tc_not_configured

Over shoot %

The percentage over the target altitude to aim for until within 15% of the target. This helps prevent undershooting if the prediction is slightly off early in the coast. For example, with a 1000m target and 5% early adjustment, the Mercury will aim for 1050m until it passes 850m.

$tc_not_configured

Activation altitude

The air brake system activates after burnout, but won't engage until the rocket has reached this percentage of the target altitude. This prevents the brakes from deploying too early when predictions may be less accurate.

20% (default)

Vuelo
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