Vol 1785
Lil Nuke - Flight with 4 altimeters - 2
Mercury V1 Rev 3 · firmware 2.40
Apogée
756.69m
11.5 s after launch
Max. montée
155.11m/s
peak ascent
Max. pendant combustion
16.85G
during the burn
Atterrissage
129.3s
touchdown 7.03 m/s
ZOOM TO
s
s
Résumé du vol
The flight, moment by moment
Liftoff
0 s
Inclinaison rampe1.25°
Thrust calc pad tilt1°
Launch detected
0.609 s
Altitude25.15 m
Vitesse64.73 m/s
Fin combustion (premier)
1.38 s
Altitude117.73 m
Vitesse146.410 m/s
Éjection possible
1.989 s
Altitude208.57 m
Vitesse132.02 m/s
Apogée
11.49 s
Altitude756.69 Mètres
Incl. max. jusqu’à fin comb.25.78°
Atterrissage
129.3 s
Altitude-1.66 m
Max. descente-10.35 m/s
Stabilité85.3%Excellent
Inclinaison à la fin de combustion (20%)97.4
20% · Launch tilt 1°
Tangage/lacet (30%)93.9
25% · Coning 25.4/53.3°/s
Coning · boost (25%)77.8
25% · Spin 444.5°/s
Rectitude de poussée (15%)76.4
30% · Thrust 94.9%
Rocket information
Calculated from the flight data alone
Boost acceleration106.1 m/s²
average over the burn · 10.8 g
Coast deceleration14.5 m/s²
average · gravity plus drag
Ballistic coefficient628 kg/m²
fitted to the 10.11 s coast
Apogee lost to tilt0.11 m
flown vertical ≈ 756.8 m · from the thrust-calculated tilt
Chute opening peak43.02 G
largest deceleration after ejection
Average descent rate1.65 m/s
ejection to landing · 127.31 s
Batterie & température 62% → 42% · Température début 26.38 → 27.17 °C · Lancement après démarrage 7m 9s
Altitude
Apogée756.69 Mètres
Temps jusqu’apogée11.49 s
Altitude fin combustion117.73 m
Altitude vitesse max.142.75 m
Altitude éjection208.57 m
Altitude atterrissage-1.66 m
Altitude enregistrement41.04 m
Vitesse
Max. montée155.11 m/s
Max. descente-10.35 m/s
À fin combustion146.410 m/s
Vitesse descente-6.432 m/s
Vitesse éjection132.02 m/s
Vitesse atterrissage-7.032 m/s
Accélération
Max. pendant combustion16.85 G
Max. montée31.08 G
Max. descente43.02 G
Moy. montée1.19 G
Moy. combustion11.75 G
Temps
Fin combustion (premier)1.38 s
Apogée11.49 s
Éjection possible1.989 s
Atterrissage129.3 s
Sortie #1 ON0 s
Sortie #1 OFF0 s
Angles
Inclinaison rampe1.25°
Thrust calc pad tilt1°
Incl. max. jusqu’à fin comb.25.78°
Roulis au lancement-1.10°
Tangage au lancement-0.55°
Rotation max. (comb.)3004.37 dps
Rotation moy. (comb.)340.71 dps
Recovery
Single deploy
No dual deploy detected on this flight.
Général
Date envoi14-Jun at 15:01
Échantillons12572
Durée totale enregistrement154.900 s
Moy. échantillons/s81.1
Nombre de verrouillages0
Lancement après démarrage7m 9s
Axe de référenceX
Batterie & température
Batterie début62%
Batterie fin42%
Température début26.38°C
Température fin27.17°C
Temp. MT1 lancement0°C
Règles de sortie
Aucune règle configurée
Notes utilisateur
A test of 2x Mercury and 2x Nano altimeters in a Lil Nuke with a G80 Aerotech motors.
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Vidéo Youtube
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Images du vol 0
Aucune image
Moteurs du vol
1st stage · 10s delay
Durée combustion
1.7 s
Diameter
29.00 mm
Poussée moyenne
77.6 N
Poussée max.
108.5 N
Poids total
127.90 g
Poids propergol
62.50 g
Type propergol
Blue Thunder
Liens
Impulsion136.6Ns
Poussée max.108.5N
Durée combustion1.7s
Classe impulsionG
1st stage thrustloading curve…
Motor data by ThrustCurve.org
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Fusée associée
Active
1 photo
My Lil Nuke #1
LOC Precision — Lil' Nuke
Type
Kit build
Diameter
57.4mm
Length
749.3mm
Dry weight
368.5g
Mod
Modified
Stages
1
Fins
3
Recovery
Parachute
Chute
61cm
Body
Loc paper tube
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) |
Other flights on this motor
7 · highest first
Lil Nuke - G80-10 - altimeter 3/4
823.1m
Lil Nuke - G80-10 - altimeter 4/4
823.1m
Lil Nuke - G80-10 - altimeter 2/4
822.9m
Lil Nuke - G80-10 - altimeter 1/4
822.8m
Lil Nuke - Flight with 4 altimeters - 1
756.8m
Lil Nuke - Flight with 4 altimeters - 4
756.8m
Lil Nuke - Flight with 4 altimeters - 3
756.7m
Rule events
No output rules fired during this flight.
Correspondance moteur (BETA)
Encore en phase de test ! Nous cherchons à deviner quel moteur a été utilisé.
Marque
Moteur
Score
Forme
Comb.
AeroTech
J615ST
142
93.1%
97.7%
AeroTech
H195NBT
110
82.1%
96.8%
Cesaroni
G125-RL
104
84.5%
94.3%
AeroTech
I600R
104
82.8%
91%
AeroTech
J825R
104
84.7%
94.6%
Cesaroni
G118-BS
100
83.5%
95.8%
Cesaroni
H163-WT
100
81.6%
95.4%
Cesaroni
G83-BS
99
83.9%
94.2%
Cesaroni
H133-BS
99
85.8%
94.1%
Cesaroni
H255-BS
99
85.8%
91.2%
Linked flights
No linked flights yet.
Site de lancement, date & heure
Imagery © Esri, Maxar, Earthstar Geographics
Cliquez sur la carte · Glissez pour ajuster
Canopy height from the Meta and WRI High Resolution Canopy Height Maps v2 (Meta and World Resources Institute, 2026; source imagery © 2016 Vantor), used under CC BY 4.0. Ground elevation built from Terrain Tiles (Mapzen and AWS Open Data), derived from 3DEP and GMTED courtesy of the U.S. Geological Survey, SRTM courtesy of NASA, and ETOPO1 courtesy of NOAA. Map and imagery credited on the view above.
Site nameUnnamed siteLat52.668721Lng-1.523751Ground level106.6 m · 350 ftDate de lancement2026-06-14Heure de lancement14:00
Taken from the NOAA GFS weather model for this place and time, so there is nothing to enter. Weather data by Open-Meteo.com (CC BY 4.0). The full weather for 48 hours either side, within 15 km, is in the tabs below and in Downloads.
Temperature17.6 °C
Sea-level pressure1019.9 hPa
QNH1020 hPa
Wind speed4 m/s
Wind directionNW
Cloud coverOvercast
About sea-level pressure and QNH
Sea-level pressure is kept as given: the model’s own, or the figure entered from a forecast or report. QNH is that pressure the way an altimeter setting means it, through the standard atmosphere, and is what the adjusted apogee and the adjusted CSV use.
Model values, not observations. NOAA GFS: weather data by Open-Meteo.com (CC BY 4.0). Ensemble: NOAA GEFS.
Animation des données
FLIGHT 1785
756.69 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
BURNOUT
Motor burn complete
Note : L’animation de vol nécessite que votre altimètre soit monté dans une orientation fixe. Calibrez vos capteurs pour de meilleurs résultats.
Mercury V1
Ce vol a été effectué sur un Mercury V1.
The hardware
Version matérielRev 3
Version logiciel2.40
Dernière connexion14-Jun at 15:01
Capteur pressionBosch BMP 581
Accéléromètre32G 3-axis
Gyroscope2000 dgps 3-axis
MagnétomètreN/A
Flights from this altimeter
No other flights yet. This will fill up as you fly.
Settings, as they were for this flight
Paramètres généraux
Pression prévue
i
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.
Xcweather.co.uk is a decent place to grab pressures from for your location and time.
1013.2 mbar
Détection lancement
i
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.
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
i
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.
1:5 (hybrid, reduces after apogee)
Max. échantillons
i
This is the maximum samples the altimeter will log per flight. When it reaches this amount it will stop and save the recording.
18000
Arrêt enregistrement
i
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).
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)
Suréchantillonnage
i
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.
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
Filtre IIR
i
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.
We suggest not setting this too high as it will cause delay to changes in altitude if set very high.
COEFF 7
Filtre pression
i
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.
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)
Changement verrouillage
i
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
Synchro capteurs
i
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 (13 samples / 71.00ms)
Orientation
i
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
i
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
i
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.
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
i
When enabled, the altimeter locks out recording for a set period after power on to prevent false triggering during setup.
DISABLED
Température statique
i
A fixed temperature value used for altitude calculation when the external temperature sensor is disabled or not connected.
15.00 °C
Capteur temp.
i
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
Arm switch
i
When enabled, GP6 is a hardware arm switch — outputs and rules are held off until the switch is closed to ground.
DISABLED
Startup lockout
i
Outputs and rules are blocked for this many seconds after power-on while sensors settle. 0 = off.
None
Launch confirm delay
i
After launch is detected, outputs and rules won't fire until this many seconds have passed.
—
Altitude floor
i
Outputs and rules are blocked until the rocket is at least this height above the launch pad.
—
Custom dataset 1
i
User-defined expression evaluated per sample, available for charting.
—
Custom dataset 2
—
Étalonnage capteurs
Décalages de calibration utilisés pour ce vol.
Gyroscope
X-0.220°
Y-0.650°
Z1.430°
Accéléromètre
X11.170 mG
Y3.330 mG
Z27.110 mG
Paramètres appareil
TAG appareil
i
A custom name or tag assigned to this device for easy identification.
TEST-LEFT-3
Langue
i
The language setting configured on the device.
🇬🇧 English
Mode arrêt
i
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
i
The brightness level of the LED indicators on the Mercury. Lower values save battery.
20%
Puissance WiFi TX
i
WiFi transmit power level. Higher gives better range but uses more battery.
2 dBm (low)
Mode veille
i
Controls whether the device enters low-power sleep when idle.
Normal (sleep when idle)
Surveillance batterie
i
Monitors battery voltage during the flight.
DISABLED
Groupe cloud
i
The cloud group / category this flight is assigned to.
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)
0
Ch6 max pulse (µs)
0
Ch6 frequency
0 Hz
Ch6 angle ON
0.00°
Ch6 angle OFF
0.00°
Ch6 on time
0.00s
Mode canal 7
ON = HIGH
Ch7 min pulse (µs)
0
Ch7 max pulse (µs)
0
Ch7 frequency
0 Hz
Ch7 angle ON
0.00°
Ch7 angle OFF
0.00°
Ch7 on time
0.00s
Carte servo I2C PCA9685
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
Le Mercury peut prédire l’apogée pendant la phase de vol libre. Ces paramètres contrôlent le calcul et le système d’aérofrein.
Masse sèche
i
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
Coefficient Cx
i
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
Surface référence
i
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
i
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
Les paramètres suivants configurent le système d’aérofrein.
Aérofrein activé
i
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
i
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
i
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
i
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 %
i
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
i
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)
Files
Where the altimeter signs its log, the file carries that signature and a tick beside it. A tick means the data is unchanged since the device wrote it, which is what a record claim needs.
CSV
1785.csv
The log as columns of text. Opens in a spreadsheet, and in every simulator that reads flight data.
1037 KB
WX
1785_weather.json.gz
The weather for 48 hours either side of the launch, within 15 km of the launch site: NOAA GFS every hour, at the surface and up to about 31 km, and the NOAA GEFS ensemble where this site holds it. JSON, gzip compressed. Weather data by Open-Meteo.com (CC BY 4.0) and NOAA. For 2026-06-14 14:00 local time at 52.6687, -1.5238.
197 KB
Adjusted CSV2904 recalculated in your browser
The log recomputed for your own sea-level pressure and temperature. Columns: time, altitude as recorded and adjusted, raw altitude as recorded and adjusted, pressure.
This file is built here from the signed log, so it carries no signature of its own. Anyone verifying a claim should be sent to the flight page and build their own from the original.
Share this flight
Anyone with the link can view this flight; nothing else on your account is shared.
Chart snapshot
A PNG of the chart exactly as you have it set right now: the series you have switched on, your zoom, your labels and any pressure correction applied.
Hotlink images
Stored images of the whole flight, altitude only, not your current chart view. Transparent, regenerated whenever the flight changes, and safe to hotlink on a forum.
Small340 × 255
Large1000 × 750
QR code
Links to this flight page. Useful on a range card or a club display.
Commentaires
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