⚠️

Vol de test détecté

Ceci semble être un vol de test ou non-fusée (ex. lancer à la main, test de vide/pression). Les données peuvent ne pas représenter un vrai vol.

●No motor burnout detected

●Gyroscope not responding (all zero readings)

●Accelerometer frozen/saturated (constant readings)

Résumé du vol

Altitude

Apogée

36.36 Mètres

Temps jusqu’apogée

5.51 seconds

Altitude fin combustion

-1.21 m

Altitude vitesse max.

-76.83 m

Altitude éjection

-1.21 m

Altitude atterrissage

36.36 m

Stabilité

Score de stabilité

0.1 / 100 (Faible)

Détail de stabilité

Inclinaison à la fin de combustion (20%)0

Constance d’inclinaison (15%)0

Tangage/lacet (30%)0

Amortissement (20%)0

Rectitude de poussée (15%)0

Vitesse

Max. montée

135.96 m/s

Max. descente

-509.44 m/s

À fin combustion

0.000 m/s

Vitesse atterrissage

0.000 m/s

Vitesse descente

0.000 m/s

Vitesse éjection

54.84 m/s

Recovery

Single deploy (no dual deploy detected)

Accélération

Max. montée

14 G

Max. descente

14 G

Max. pendant combustion

14 G

Moy. montée

14 G

Moy. combustion

14 G

Temps

Fin combustion (premier)

0 seconds

Apogée

5.51 seconds

Éjection possible

0 seconds

Atterrissage

5.51 seconds

Sortie #1 ON

0 seconds

Sortie #1 OFF

0 seconds

Angles

Inclinaison rampe

89.94°

Incl. max. jusqu’à fin comb.

90.07°

Roulis au lancement

89.94°

Tangage au lancement

3.60°

Rotation max. (comb.)

0 dps

Rotation moy. (comb.)

0 dps

Général

Date envoi

08-Mar at 15:15

Échantillons

1099

Durée totale enregistrement

22.000 s

Moy. échantillons/s

49.9

Nombre de verrouillages

Altitude enregistrement

120.21 m

Lancement après démarrage

10m 45s

Axe de référence

Batterie & température

Batterie début

27%

Batterie fin

27%

Température début

18.25°C

Température fin

18.17°C

Temp. MT1 lancement

0°C

⚠ Batterie faible — recharger avant le prochain vol

Règles de sortie

Aucune règle configurée

Animation des données

FLIGHT 1218

36.36 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

Note : L’animation de vol nécessite que votre altimètre soit monté dans une orientation fixe. Calibrez vos capteurs pour de meilleurs résultats.

Notes utilisateur

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Vidéo Youtube

Aucune vidéo

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Images du vol (0)

Aucune image

Fusée associée

✅ Active

My Lil Nuke #1

LOC Precision — Lil' Nuke

✈️ 3 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)

Informations appareil

Mercury V1

Ce vol a été effectué sur un Mercury V1.

Version matériel

Rev 2

Version logiciel

2.2

Dernière connexion

22-Mar at 16:10

Accéléromètre

32G 3-axis

Gyroscope

2000 dgps 3-axis

Capteur pression

Bosch BMP 390

Magnétomètre

N/A

14 Plus de cet altimètre → 4 Tag: #Merc8349 → Spécifications altimètre →

Moteurs du vol

1st Stage

Estes

1/2A3-4

Details ▾

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Site de lancement, date & heure

Cliquez sur la carte · Glissez pour ajuster

Lat— Lng—

✓ Launch location saved successfully.

✗ Could not save location — please try again.

Règles de sortie

Les règles permettent au Mercury d’effectuer des actions selon les conditions de vol. Chaque règle a jusqu’à 4 conditions (A-D).

Aucune règle configurée

Correspondance moteur (BETA)

No motor matches, try refreshing the page.

Comparaison de vol

Aucun vol trouvé avec la même configuration moteur.

Combustion moteur

Ceci est la magnitude de sortie de l’accéléromètre du lancement à la fin de combustion. You can check this against your motors thrust data on thrustcurve.org.

Paramètres généraux

Ceci est un aperçu des paramètres utilisés pour ce vol. Rendez-vous sur la Rendez-vous sur la page Mes appareils puis Configurer les paramètres..

Pression prévue

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

Détection lancement

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

Ratio échantillonnage

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.

1:1 (50Hz)

Max. échantillons

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

12000

Arrêt enregistrement

This setting is how the altimeter decides to stop recording. You can choose either 300 or 600 samples stable or it will record until it's 10000 sample 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: 300 samples stable

Suréchantillonnage

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.

8x Oversampling

Filtre IIR

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

Filtre pression

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)

Temps verrouillage

The Lockout time is how long the altimeter should stop making decisions and taking actions if it detects unusual high speed altitude changes that are unexpected.
These false readings can be caused by ejection charges (if the altimeter is in the same compartment as the motor ejection gases) or even when you transition to Mach speeds and can give false readings of altitude changes.

When these events are detected the system enters Lockout for the specified time while it stabalises. This effects things like triggering the output, or calculating other data.

750ms

Changement verrouillage

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.

1.5 meters

Synchro capteurs

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.

ACTIVÉ

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)

Filtre IMU

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

ALP lancement

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

Verrouillage lancement

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

DISABLED

Température statique

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

15.00 °C

Capteur temp.

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

DISABLED

Paramètres de sortie

Ceci est un aperçu des paramètres utilisés pour ce vol.

Sortie 1 activée

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

DÉSACTIVÉ

Sortie 1 déclencheur

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)

Sortie 1 durée

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

2000ms

Sortie 1 altitude

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

Sortie 1 temps

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

Verrouillage altitude

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

50.00 m

Verrouillage inclinaison

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 °

Étalonnage capteurs

Décalages de calibration utilisés pour ce vol.

Gyroscope

⚠ Le gyroscope n’a pas été calibré

0.000°

Accéléromètre

⚠ L’accéléromètre n’a pas été calibré

0.000 mG

Paramètres appareil

Ceci est un aperçu des paramètres utilisés pour ce vol.

TAG appareil

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

Merc8349

Langue

The language setting configured on the device.

Mode arrêt

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

Luminosité LED

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

20%

Puissance WiFi TX

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

5 dBm (default)

Mode veille

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

Normal (sleep when idle)

Surveillance batterie

Monitors battery voltage during the flight.

DISABLED

Groupe cloud

The cloud group / category this flight is assigned to.

General use

Ports GP6 / GP7

Configuration des ports GP6 et GP7 pour canaux pyro, servos ou autres appareils.

Mode canal 6

ON = HIGH

Ch6 min pulse (µs)

1000

Ch6 max pulse (µs)

2000

Ch6 frequency

50 Hz

Ch6 angle ON

170.00°

Ch6 angle OFF

10.00°

Ch6 on time

2.00s

Mode canal 7

ON = HIGH

Ch7 min pulse (µs)

1000

Ch7 max pulse (µs)

2000

Ch7 frequency

50 Hz

Ch7 angle ON

170.00°

Ch7 angle OFF

10.00°

Ch7 on time

2.00s

Carte servo I2C PCA9685

Ceci est un aperçu des paramètres utilisés pour ce vol.

Configuration de la carte servo externe I2C PCA9685 avec jusqu’à 6 canaux servo supplémentaires.

Aucune carte servo I2C n’était connectée pour ce vol.

Prédiction et aérofreins

Ceci est un aperçu des paramètres utilisés pour ce vol.

Le Mercury peut prédire l’apogée pendant la phase de vol libre. Ces paramètres contrôlent le calcul et le système d’aérofrein.

Masse sèche

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.

0.1500 kg

Coefficient Cx

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.

0.750

Surface référence

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.

0.00100 m²

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.

287.05 J/(kg·K)

Les paramètres suivants configurent le système d’aérofrein.

Aérofrein activé

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)

Altitude cible

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

300.00 m

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.

5.00%

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)

Vol
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