B767 Undifferentiated or Other Model
Flight Crew Air Transport Pilot (ATP)
Fatigue
Deviation / Discrepancy - Procedural FAR
General None Reported / Taken
Company Policy; Human Factors
I was dispatched on a [flight] to EGLL that ended up at [8:20 block to block] with no crew augmentation. I didn't find out the Relief Pilot was removed from my trip segment until I reported for duty.  My First Officer is new with very little ETOPs experience at [this company].  I feel this is very unsafe to dispatch without a relief pilot.  We had no crew rest.  I have never flown to London or back without a relief pilot.  I was extremely tired on arrival.  On the return flight we blocked 8:20 as well; again; with no augmentation.  This needs attention as I believe this practice is unsafe.
A B767 Captain reported being assigned and flying a round trip to EGLL--block to block at 8:20 both directions--without a relief pilot.  He felt 'extremely tired on arrival' and believes the assignment to have been unsafe.