This is what happened...Before taking off at Numbie I did a pre flight check. In total 8 bolts with safety rings on my aerie. All in place.

It was a smooth flight from Hazyview to Lydenburg and at average speed of 40 to 45 knts.
I landed at Lydenburg, had coffee with local microlighters, refuel, got into the aerie and took off..I DID NOT CHECK NOTHING except fuel level..
Shortly after take-off I notice my air speed and my ground speed is very low and both be-ing more or less the same...sometimes as low as under 30 knts. I start pulling the bar and both air and ground speed then increased. I also became aware of the controle bar not having a position of 'hands free' and wanting to go and rest against the profile tube. In order to get the aerie to fly faster i had to constantly pull the bar..I mean PULL THE BAR very hard to obtain 40 knts.
At first I thought it is a kind of wind phenonomen which i have not experience before

then after a while I thought my flying needs to be improved as I am starting to loose my skills..
Progressively I was flying with more difficulty..It became difficult to maintain a straight line and also to counter thermals..I balltled on and realize that I wont be able to reach the farm when eventually Raasblaar landingstrip appeared in the distance. By now I was very tired and started to make noises like you hear at wimbledon.
Because of game on the landingstrip I had to fly a circuit which was very difficult as the aerie was progressively flying worse...
I landed safely but not satisfactory and was still thinking what a shit pilot I am to ballte that mutch to fly the aerie...I tied the aerie down and went to the bar to have a double..From there I phoned Johan vd Berg at Groblersdal and he suggested that we check the hanging block...On his arrival we went back to the aerie and found that the rear bolt with the safety ring was missing..
Presantly the aerie is at Jenna,s place for a thorough check-up and minor repairs..Jenna explains that it is not possable for the bolt to come loose while flying and that it can only happen when the aerie shudders or vibrates for example when landing or taking- off or taxeiing on a not so smooth runway....I have learned my lesson...And that bolt is lying somewhere on the runway at Lydenburg!!!!!