It looks like I may be alright according to this bit.
Light vehicle and trailer combination
Rear projection (RP): 1.2 metres (may exceed 1.2 metresunder certain
conditions – see ‘Warning devices for
projecting loads or equipment - light vehicles’ below)
Rear overhang (ROH): no more than the length of the front loading space
or 3.7 metres, whichever is the lesser.
If the trailer in this combination is loaded with rowing boats, see VSI
No. 43 Transporting rowing
boatsfor more information.
If the trailer in this combination is loaded with a small yacht, see VSI
No. 62 Transporting yachts
on trailersfor more information.
this bit here.
Warning devices for projecting loads or equipment – light vehicles
A light vehicle, or a light vehicle and trailer combination, may have a
rear projection exceeding
1.2 metres if the overall length of the vehicle or combination,together
with the loading or
equipment on it, is within the relevantlimits fixed by the Regulation i.e.
• 12.5 metres in the case of a light vehicle
• 19.0 metres in the case of a lightvehicle and trailer combination.
If the rear projection is greater than 1.2 metres, the rear of the load
or equipment must have
attached a brightly coloured flag or piece of material not less than 300
mm square. In addition to
the flag, when travelling at night or in adverse weather conditions that
restrictvisibility, a red light
or at least two red reflectors must be attached:
• the red light needs to be seen for 200 metres
• the reflectors need to be capable of projecting a red reflection of
light.
These requirements also apply to any load or equipment that projects
less than 1.2 metres if it
projects in such a way that it is not readily visible to a person
following immediately behind the vehic