Tugboat Dual Camera #9 - Nightshift - Voith Schneider Controls PiP
ฝัง
- เผยแพร่เมื่อ 29 ก.ย. 2024
- Assisting the Grande San Paolo from her berth to the lock.
This time i cut out more RAW video to have a shorter final result, because the previous movies were a bit long/large for mobile users :)
Tell me if you like it ....
Tug specs :
2x 2750 horsepower
Lenght : 30m
Width : 12m
Depth : 5.5m
Video Timestamps :
00:41 : Heaving line thrown on the deck, and going up.
01:30 : Winching out Towing Cable
01:51 : Confirmation that towing cable is secure
02:05 : Winching out towing cable to the desired length
02:31 to 09:00 : Swinging manoevre (180° turn)
09:30 : In the ships propellerwash ( engine slow ahead)
10:25 : Indirect assist to make a 90° turn
11:51 : Entering the lock
12:22 : Stopping the ship to 0 knots. The ship went past it's mark by a few meters because we didn't have enough stoppingpower. The ship had a positive pitch propeller* which caused this.
14:52 : Winching in towing cable
15:25 : Propellerwash from the positive pitch pushed the tug to the starboard (tug point of view)
16:03 : Leaving the lock heading for the berth
16:50 : Turning 180° in order to moore at the quay
* Positive Pitch : This means that the ships propeller keeps turning with a little bit of forward propulsion, even when the pitch is set at zero. This caused the ship to overshoot a couple of meters before the tug was able to stop it.
Just hearing that deep get going rumble of the diesel spooling up gives me goosebumps. Could sit on the bridge of this vessel everyday! Miss your videos man, . . . you going to upload again?
Further to my question, what are the incremental markings on the two levers on the left?
I'm assuming the big levers are the thrust or angle of the paddles in one axis, wheel for the perpendicular axis and the buttons are the speed of the propeller right?
Great night video, enjoy your channel : )
Can someone kindly explain the controls? The two levers on the left seem to control direction and speed? And the engine puts out the hp selected ? and what does the wheel do, since there is no rudder? Thanks very much.
I'm glad you cut the music off around 2 mins or so. You just cant beat the raw sounds of the sea and engine. An intro screen with a set theme song played for a few seconds would make these videos perfect.
mooi filmpje weer. is eerste filmpje waarin ik zie dat je vol gas moet geven. was schip zo zwaar dat je vol vermogen nodig had? Keep up the good work!
+Dave Kersbergen Op het einde had ik zelfs vermogen te kort om het schip tijdig stil te leggen. Het is enkele meters voorbij de positie gegaan dan waar het voorzien was ;) De pitch-propeller van het schip bleef blijkbaar zachtjes op vooruit staan en dit was dus genoeg om het schip een stukje te ver te laten schuiven. Bij het rondtrekken speelde de wind ons wat parten, en ik wou het schip zo snel mogelijk rond hebben aangezien het stilletjes achteruit voer, en daarachter lag nog een autoschip. Maar uiteindelijk kwam alles toch zeer ruim uit.
+ShippingHarbors kreeg al zo'n vermoede dat er vermogen te kort was als ik zag hoe snel je motor vermogen opvoerde meestal zie ik je dat stap voor stap doen maar dit keer ging het in rap tempo. had je time schemaatje gelezen dus dat van die sluis had ik mee gekregen. begin ook nu steeds beter te snappen hoe dat schneider werkt. en in je filmpje van gisteren waren de motoren volgens mij erg koud want normaal bij de motor start blaas je bijna nooit zulke grote zwarte wolken.
De motoren zijn altijd warm hoor. Ze worden verwarmd door de centrale verwarming aan boord. Die wolken bij het starten is vrij normaal omdat de motor dan 'volgas' geeft en de turbo nog niet meewerkt. Je krijgt dan een slechte verbranding wat tot die wolken leid. Je kan dit wel voorkomen door manueel de brandstofpomp tegen te houden, maar niet iedereen past dit toe.
• What causes the engines/props to pulse when there are no changes to the controls?
• On routine assists such as this, is there typically a second tug at the bow of the ship?
• Do you find working one end of the ship (bow/stern) more interesting/difficult/desirable than the other? How is it determmined who gets the bow and who gets the stern?
• How big is the difference in the water levels on either side of the lock, and how long does it take for the lock to fill or empty?
Comment: I realize that security concerns might be an issue, but I'd love to see an overview at the beginning of each video, showing a map or satellite image of the harbor marked with the ship's initial location as well as the route and destination. I've spent quite a lot of time trying to familiarize myself with the area by looking at satellite images on Google Maps, and with each new video I try to identify where you are and where you're going. While this does have a certain entertainment value, an overview of what's happening would still be welcome.
Thanks again! I never get tired of watching your videos. -Chris
*what do you mean with 'pulse' ?
*that depends on the pilot/captain whether or not he want 1 or more tugs. The more wind, the more tugs are needed (sometimes up to 4 tugs)
*i prefer the stern more because it's more 'action' with the propellerwash etc....
*most of the time the strongest tug goes at the stern for stopping power in case of emergency. When the tugs are equal in strength then both captains of the tugs elaborate who wants to go were.
*the area we work in are docks and have no tidals. At the other side of the locks the difference is about 6.5m. The lock will do about 25-30 minutes for the maximum height difference.
About the map thing : I was thinking to do this also, but in my opinion it's to much information regarding security and safety issues. These times there are people with not so good intentions (unfortunately) that could abuse this information I think.
+ShippingHarbors By pulsing, I mean the sound changes as though the throttle is being moved slightly up and down. You can hear examples between 3:19 and 3:50. Is that just a variation in the sound because of the waves/propwash?
+bx2200 I think i know what you mean. The variation in sound is caused by the sound of the exhausts. At that place (were the camera is placed) the exhausts produce a very deep rumble (like a large subwoofer in a car for example). This sound is very hard to record, even for the external microphone i use. I think the camera/microphone lowers the gain control when that sound overwhelms the footage instead of recording it. And this leads to the resonance tone you hear. I can try to set the microphone less sensitive next time and see if that eliminates the problem. The mic has -10dB / 0dB / +10dB options. All the footage i record is at 0dB.... Maybe i can try the -10dB next time.
I am thinking that what you mean by pulse in the sound, is likely in sound terms called "phasing". When two identical sound sources..i..e, in this case two identical engines are running "more or less" the same speed and the tiny differences in speeds due to whatever is causing this is reflected by the "pulsing" or phasing of the overall sound, especially when heard in stereo. It is the slight variation in sound frequency in the two engines that gives this effect. Hence Binaural beats use this "beating" or phasing in their recordings at various frequencies for whatever the desired affect they are looking for. And well done Mr Tugboat Man at ShippingHarbours for all these awesome hands on videos you have made. Rare to see but very good and interesting to watch.
¡ Esto es extraordinario !, fenomenal dominio - casi quirúrgico - de semejante potencia y enormes estructuras. Muchas gracias.
Heej hallo daar in het Antwerpse, weer een top film man, en ik sprak hier in Harderwijk een oude zeeman die liet ik dit zien en hij straalde helemaal dus je hebt er weer een fan bij ha ha, groetjes uit Harderwijk Nederland.
+reptilemusic55 haha super om te horen ! :)
+ShippingHarbors Ja hij vertelde dat het in zijn tijd nog niet zo modern ging zoals nu met dit soort besturings systemen en hij zet zijn geluid lekker hard want hij genoot ook zo van de zwaar ronkende motoren, dus zei ik maar,denk aan de buren, ha ha
Excellent! I see now I must watch all these videos!
It would have been interesting to hear what swearing in dutch sounds like inside the bridge when you overshot.. ;)
Weer een heel mooie gemaakte video ze kunnen mij niet lang genoeg duren en zo is het net of ik zelf aan boord ben wat me geweldig lijkt en dan nog een muziek je erbij prachtig
COngratulations again, awesome videos.
What are those lights you press? It seems they increase the power of the engines.
so if i have this right (far left picture) both controls to the rear is full astern both to the top is full ahead or the direction of the rotors so one clock wise the other counter clockwise would make the boat go forwards and the wheel does the direction by changing the angle of attack of the blades so making the the water leave at different angles from the rotors giving thrust in the wanted direction
+peter james Yes that is correct. Actually in the video is sticks to the top (of your screen) full astern, and sticks to the bottom full ahead. The rudder changes the angle of attack of the propellers to make the tug turn. There is no rudder on these tugs and everything is done with the 2 Voith Schneider Units.
No mention of what harbor we're in.
+Ralph Averill Antwerp :)