sailed4seas talk 53 Sanchi collision review part 14
Radar lookout in C-3, three minutes before collision ?
why approaching vessel's echo change in close range ?
Why school collision avoidance class have to be changed
why approaching vessel's echo change in close range ?
Why school collision avoidance class have to be changed
Sanchi collision review part 14
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sailed4seas talk 52 Sanchi collision review part 13
why approaching vessel's bearing change should read from her stern ?
Why collision avoidance scenario changed from collision point to collision line and finally colli
Why collision avoidance scenario changed from collision point to collision line and finally colli
Sanchi collision review part 13
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sailed4seas talk 51 Sanchi collision review part 12
Why course change with hard over rudder for collision avoidance within 3 minutes is useless, did you know ? why we need to change radar echo presentation criteria in di
Sanchi collision review part 12
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sailed4seas talk 50 Sanchi collision review part 11
situational awareness in C-4, four minutes before collision ? Why course change have 2 minutes delay for collision avoidance, did you know ? why we need to ask lookout
Sanchi collision review part 11
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sailed4seas talk 49 Sanchi collision review part 10
what we can learn at 1944 hours in AIS ? Why course change need 7 or 8 ship's Length distance for collision avoidance, did you know ? How to judge which vessel is to pa
Sanchi collision review part 10
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sailed4seas talk 48 Sanchi collision review part 9
what we can learn at 1941 hours in AIS ? Why 7 or 8 degrees course change is enough for collision avoidance, did you know ? How to judge 3 minutes difference in passing
sailed4seas talk 48 Sanchi collision review part 9
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sailed4seas talk 4７ Sanchi collision review part ８
what we can learn at 19３９ hours ? Why 7 or 8 degrees course change is enough for collision avoidance, did you know ? How to judge 3 minutes difference in passing time i
Sanchi collision review part ８
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sailed4seas talk 46 Sanchi collision review part 7
what we can learn at 1939 hours ? How many degrees course change is enough for collision avoidance, did you know ? why 4.5 minutes difference in passing time is enough
sailed4seas talk 46 Sanchi collision review part 7
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sailed4seas talk 45 Sanchi collision review part 6
what we can learn at 1936 hours ? Collision stick length to detect collision time ?
How to judge who will pass collision spot first ? What collision spot is always
How to judge who will pass collision spot first ? What collision spot is always
関連リンク
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sailed4seas talk 44 Sanchi collision investigation review part 5
Full details of course changing in collision scenery.
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sailed4seas talk 43 : Sanchi collision investigation review part 4
Small course altering will cost your career.
Never think small course adjustment have nothing to do with collision. it matters a lot.
Never think small course adjustment have nothing to do with collision. it matters a lot.
Sanchi collision investigation review part 4
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sailed4seas talk 42 Sanchi collision investigation review part 3 Predict your collision time and where to collide.
Sanchi collision investigation review part 3 Predict your collision time and where to collide.
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sailed4seas talk 4１ Sanchi collision case review part 2
How to use trail and speed vector to help situational awareness? if one vessel only have half speed than other vessel, trail length in 2.5 minutes may have difference o
Sanchi collision case review part 2
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sailed4seas talk 40 formal investigation report of Sanchi incidents
A picture is worth than thousand words. sailed4seas talk 40 formal investigation report of Sanchi incidents as below
https://www.mardep.gov.hk/en/msnote/p...
https://www.mardep.gov.hk/en/msnote/p...
Visualize not digitize the collision risk by Captain Gilbert Lee demonstration video.
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sailed4seas talk 39 are you qualify for radar lookout?
are you qualify for radar lookout?
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sailed4seas talk 37 why speed reduction rate need 1.5 knots per minute ?
why speed reduction rate need 1.5 knots per minute ?
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sailed4seas talk 36 Bad example of collision avoidance.
Bad example of collision avoidance.
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sailed4seas talk 35 concept of collision point movement
concept of collision point movement
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sailed4seas talk 34 reduce the speed makes things easier.
reduce the speed makes things easier.
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sailed4seas talk 33 transit time difference is important?
ransit time difference is important? big vessel need one minutes to transit ? small vessel need 30 seconds to transit?
In this exercise we explain why transit time
In this exercise we explain why transit time
transit time difference is important?
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sailed4seas talk 32 DENSE TRAFFIC concepts in collision avoidance
There are different concepts in collision avoidance
1. In open sea: 10 degrees is necessary to avoid target vessel which has real collision risk. (to avoid target)
1. In open sea: 10 degrees is necessary to avoid target vessel which has real collision risk. (to avoid target)
DENSE TRAFFIC concepts in collision avoidance
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sailed4seas talk 31 AT what time OS alter course to Portside to avoid the collision?
AT what time OS alter course to Portside to avoid the collision?
AT what time OS alter course to Portside to avoid the collision?
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sailed4seas talk 30 use EBL as relative bearing mark
sailed4seas talk 30 use EBL as relative bearing mark
Ownship try to rectify this foolish situation in most dense traffic area.
Ownship try to rectify this foolish situation in most dense traffic area.
Ownship try to rectify this foolish situation in most dense traffic area.
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sailed4seas talk 29 Mission impossible or piece of cake ?
Why ownship speed reduction is ineffective after we are in maneuvering speed? (suspect)
May be we forget the first rule “ Safe position is more effective than safe
May be we forget the first rule “ Safe position is more effective than safe
Mission impossible or piece of cake ?
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sailed4seas talk 28 How to judge the safe course to steer
The moral is “ Speed reduction is more effective to avoid high speed vessel collision”. (rule) New collision risk aroused. Where is it? (suspect) How can we detect it?
How to judge the safe course to steer
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sailed4seas talk 27. Peerless or clueless captain at scene.
sailed4seas talk 27. Peerless or clueless captain at scene.
Peerless or clueless captain at scene.
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sailed4seas talk 26 Bow crossing time is decided by other ship.
Bow crossing time is decided by other ship.
What time target will pass ownship bow depends on target vessel speed vector; not depends on ownship speed. (Statement)
What time target will pass ownship bow depends on target vessel speed vector; not depends on ownship speed. (Statement)
Bow crossing time is decided by other ship.
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sailed4seas talk 25 retiredness of rudder response
In the first stage (0.25 NM),
Own Ship is helpless in collision risk. Any rudder order (50, 100, 200,300 to port or starboard side) been used is useless. Vessels just
Own Ship is helpless in collision risk. Any rudder order (50, 100, 200,300 to port or starboard side) been used is useless. Vessels just
retiredness of rudder response .We have some observations to note:
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sailed4seas talk 24 demo of rudder cycling and reduce rate of speed = 1.5 knots per minute
By reducing speed effectively with rudder cycling can save almost all problems. (suspect)
Reduce speed is not as quickly as reduce engine output. (statement)
Reduce
Reduce speed is not as quickly as reduce engine output. (statement)
Reduce
demo of rudder cycling and reduce rate of speed = 1.5 knots per minute
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sailed4seas talk 23 Safe position is more important than Safe Speed.
Precautionary AREA means no trespassing.
The moral of this maneuvering is Safe position is more important than Safe Speed. Precautionary AREA means no trespassing.
The moral of this maneuvering is Safe position is more important than Safe Speed. Precautionary AREA means no trespassing.
Safe position is more important than Safe Speed.
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sailed4seas talk 22 the cause of lost control
The moral of this maneuvering is: Control your turning rate while collision avoidance is important. (rule in this area)
Prolong “Hard-Over” rudder might not be the
Prolong “Hard-Over” rudder might not be the
the cause of lost control
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sailed4seas talk 21 HOW TO SET EBL ON RADAR AS RELATIVE BEARING LINE ?
HOW TO SET EBL ON RADAR AS RELATIVE BEARING LINE ?
sailed4seas talk 21
sailed4seas talk 21
HOW TO SET EBL ON RADAR AS RELATIVE BEARING LINE ?
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sailed4seas talk 20 is speeding the best ?
Speeding look good at it cost.
If you don't want sorry for your ass, find a better way to do the work.
If you don't want sorry for your ass, find a better way to do the work.
Speeding look good at it cost.
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sailed4seas talk 19
How to decide the collision. spot and own ship safety margin ?
http://sailed4seas.pixnet.net/blog/po...
http://sailed4seas.pixnet.net/blog/po...
How to decide the collision. spot and own ship safety margin ?
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sailed4seas talk 18 steady the good damn ship
1. you should be able to understand the shiphandling is not to use the rudder too much.
2. we should steady the course as fast as possible and make minimum rudder mov
2. we should steady the course as fast as possible and make minimum rudder mov
steady the good damn ship
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sailed4seas talk 17 rudder cycling
sailed4seas talk 17 rudder cycling
https://youtu.be/Uep1l916A64
http://sailed4seas.pixnet.net/blog/po...
This exercise tells us By reducing engine output migh
https://youtu.be/Uep1l916A64
http://sailed4seas.pixnet.net/blog/po...
This exercise tells us By reducing engine output migh
rudder cycling
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sailed4seas talk 16 mental game of radar lookout
(rule useful in dense traffic area like this as the situation change with very quick heading change)
mental game of radar lookout
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ailed4seas talk 15 wrong position of own ship
ailed4seas talk 15 wrong position of own ship
https://youtu.be/dOR1nT1uOfw
no visual lookout, no radar lookout, no situation awareness, is not qualified for the
https://youtu.be/dOR1nT1uOfw
no visual lookout, no radar lookout, no situation awareness, is not qualified for the
ailed4seas talk 15 wrong position of own ship
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sailed4seas talk 14 finger crossed
1. collision avoidance is to avoid the Collision spot, so if we can clear the collision area then there will be no collision at all.
2. Own ship have altered course f
2. Own ship have altered course f
sailed4seas talk 14 finger crossed
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sailed4seas talk 13: judging collision time
2 minutes for No.18 to arrive 3 minutes for Own Ship to arrive
(Collision point by judging the location of the spot in collision stick)
(Collision point by judging the location of the spot in collision stick)
sailed4seas talk 13: judging collision time
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sailed4seas talk 12 collision route and speeding
collision route and speeding
1. reduce speed may be a good option for the container vessel。
2. change course more quickly in the bulk carrier vessel .
3. Don't go
1. reduce speed may be a good option for the container vessel。
2. change course more quickly in the bulk carrier vessel .
3. Don't go
collision route and speeding
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sailed4seas talk 11 how many knots need to be reduced to avoid the collision.
I made a mistake inside the video,
one vessel reduced speed 9 Knots in 6 minutes, How many distance she can gain to away from the collision spot ?
Ans : reduced spe
one vessel reduced speed 9 Knots in 6 minutes, How many distance she can gain to away from the collision spot ?
Ans : reduced spe
how many knots need to be reduced to avoid the collision. Things to remember : speed reduce rate at least 1.5 knots per minute
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sailed4seas talk 10
the moral of this exercise is not
1. how to use 3 minutes speed vector as navigational stick to detect collision risk and also not
2. about how do You reduce speed
1. how to use 3 minutes speed vector as navigational stick to detect collision risk and also not
2. about how do You reduce speed
safe voyage plan is utmost important
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sailed4seas talk nine
sailed4seas talk nine
https://youtu.be/aKeBHlc9pfI
1. How to make the radar Look out ?
2. why we should use 3 minutes speed vector to evaluate the Collision r
https://youtu.be/aKeBHlc9pfI
1. How to make the radar Look out ?
2. why we should use 3 minutes speed vector to evaluate the Collision r
sailed4seas talk nine
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sailed4seas talk eight
sailed4seas talk eight
https://youtu.be/ETpe9b09VH8
things to discuss on board.
1. What the picture you saw. If you are the master at the vessel ?
2. How ma
https://youtu.be/ETpe9b09VH8
things to discuss on board.
1. What the picture you saw. If you are the master at the vessel ?
2. How ma
things to discuss on board. 1. What the picture you saw. If you are the master at the vessel ? 2. How many degrees turn is need to avoid collision in one nautical miles ? A : 20 degrees
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sailed4seas talk seven, VLCC colission with VLCS
https://youtu.be/goDCldP83mM
VLCC Dream II collision with cargo ship MSC Alexandra
1. VLCS increased speed from 7.5 its (safe) to 11.9 Its (danger).
2. Bothe
VLCC Dream II collision with cargo ship MSC Alexandra
1. VLCS increased speed from 7.5 its (safe) to 11.9 Its (danger).
2. Bothe
VLCC colission with VLCS
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sailed4seas talk six : Three ballons help you understand the turning.
sailed4seas talk six : Three ballons help you understand the turning.
https://youtu.be/U_fmhKBx8Ys
Three ballons help you understand the turning Vessel is turni
https://youtu.be/U_fmhKBx8Ys
Three ballons help you understand the turning Vessel is turni
Three ballons help you understand the turning.
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sailed4seas talk five
1. collision risk = two veesels course line crossed each other.
2. the crossed point of two vessels is collision point.
3. speed vector is a good indiction 0f where
2. the crossed point of two vessels is collision point.
3. speed vector is a good indiction 0f where
sailed4seas talk five
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sailed4seas talk four
1. Collision stick need to set at three minutes intervals.
2. We're overtaking vessel, reduce speed will always help.
3. Reduced speed, reduced collision.
4. Reduc
2. We're overtaking vessel, reduce speed will always help.
3. Reduced speed, reduced collision.
4. Reduc
Collision stick need to set at three minutes intervals.
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sailed4seas talk three
1. speed vector length setting
2. Drifting angle caused misleading
3. parallel course to avoid collision
4. the vessel won't hit you within 6 minutes, why
5. re
2. Drifting angle caused misleading
3. parallel course to avoid collision
4. the vessel won't hit you within 6 minutes, why
5. re
sailed4seas talk three
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sailed4seas talk two
Collision line, Collision Heart, What is a Collision, no bad romance and no collision.
関連リンク
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sailed4seas talk one。 definition of collision, collision point
sailed4seas talk one。 definition of collision, collision point
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