Sounds to me like the incoming vessel was traveling too fast.
Overtaking at that location of the T junction especially when the north side was impaired by the dredge is ill advised and where the jetties impair visibility of small craft, i.e. vessels with low air
draft, such as without
mast and sails. Just go as slow as the slowest boat ahead of you, geez, it is only a short distance to get to open water outside that harbor. And do not encourage boats behind you to attempt an overtaking, tell them to back the F' off.
There is nothing wrong with just stopping to avoid collision.
—INTERNATIONAL—
Steering and Sailing Rules
RULE 6
Safe Speed
Every vessel shall at all times proceed at a safe speed so that she can
take proper and effective action to avoid collision and be stopped within a
distance appropriate to the prevailing circumstances and conditions.
In determining a safe speed the following factors shall be among those
taken into account:
(a) By all vessels:
(i) the state of visibility;
(ii) the traffic density including concentrations of
fishing vessels or any
other vessels;
(iii) the maneuverability of the vessel with special reference to stopping
distance and turning ability in the prevailing conditions;
(iv) at night, the presence of background light such as from shore lights
or from back scatter of her own lights;
(v) the state of
wind, sea and
current, and the proximity of navigational
hazards;
(vi) the
draft in relation to the available depth of water.
(b) Additionally, by vessels with operational
radar:
(i) the characteristics, efficiency and limitations of the radar
equipment;
(ii) any constraints imposed by the radar range scale in use;
(iii) the effect on radar detection of the sea state,
weather and other
sources of
interference;
(iv) the possibility that small vessels, ice and other floating objects may
not be detected by radar at an adequate range;
(v) the number, location and movement of vessels detected by radar;
(vi) the more exact assessment of the visibility that may be possible
when radar is used to determine the range of vessels or other objects
in the vicinity.
—INTERNATIONAL—
Steering and Sailing Rules
RULE 8
Action to Avoid Collision
(a) Any action taken to avoid collision shall be taken in accordance with
the Rules of this Part and shall, if the circumstances of the case admit, be
positive, made in ample time and with due regard to the observance of good
seamanship.
(b) Any alteration of course and/or speed to avoid collision shall, if the
circumstances of the case admit, be large enough to be readily apparent to
another vessel observing visually or by radar; a succession of small
alterations of course and/or speed should be avoided.
(c) If there is sufficient sea room, alteration of course alone may be the
most effective action to avoid a close-quarters situation provided that it is
made in good time, is substantial and does not result in another closequarters situation.
(d) Action taken to avoid collision with another vessel shall be such as to
result in passing at a safe distance. The effectiveness of the action shall be
carefully checked until the other vessel is finally past and clear.
(e) If necessary to avoid collision or allow more time to assess the
situation, a vessel shall slacken her speed or take all way off by stopping or
reversing her means of propulsion.
(f)
(i) A vessel which, by any of these rules, is required not to impede the
passage or safe
passage of another vessel shall, when required by the
circumstances of the case, take early action to allow sufficient sea
room for the safe passage of the other vessel.
(ii) A vessel required not to impede the passage or safe passage of
another vessel is not relieved of this obligation if approaching the other
vessel so as to involve risk of collision and shall, when taking action,
have full regard to the action which may be required by the rules of this
part.
(iii) A vessel, the passage of which is not to be impeded remains fully
obliged to comply with the rules of this part when the two vessels are
approaching one another so as to involve risk of collision