Hi, want to share my LOST & FOUND experience. 

Yesterday (January 9, 2011) it was a foggy day but I went for flying (I cant stop myself flying on a Sunday unitll its raining  ). After 2 successful sorties, I filled for the third time, I was flying low and slow but just to take a loop, I gave full throttle and the aricraft raises, took a loop and suddenly vanishes in white fog................. I was so shocked... I can hear engine running but I was not able to locate where exactly it was...... I tried on transmitter to change its direction, bring throttle to 0...but no avail.... I lost it..

I start a search mission lasts till 3 hours in the nearby area but ....no..sign of releif...no one there saw an aircraft going.... .. and I calculated my loss....6600 (new Os Engine), about 3000 (Spektrum receive), 2800 (4 servos), 900 (futaba battery) and 5000 (Ready 40 kit).  .

Night was a sleepless one....had a meeting in the morning...during the meeting I was thinkg about the loast plane....how could it happen to me ?4

An hour back (january 10, 1:30 PM) I went back to the place...start walking...away from the flying point and about 1 and half KM ..i found some kids playig...asked them....and.... they saw my model ...last eveing ..crashing on the road...and some roadside dwellers, collected it.....according to them a car crushed my plane .... ....but I was so happy that atleast I can see me plane again... met the roadside dwellers ...they gave me the debris of the plane........Receiver safe, servos safe....battery safe...but engine was badly damaged ...with its caburetter  lost...and breaking its neck, some fins..broken, engine mounting broken....but ...I got my plane back....
Learning :
Never fly in Fog however expert you are .....it was God's grace that I got it back...and it didnt hurt anybody..otherwise a running engine may have caused an accident too .

I want to know can we still use the eninge???its a new one but in a bad situation....will post picturs today eveing..

Get a new engine and you would have lots of spare for the new one salvaged from this one.

And you just learnt a very important lesson. Do not fly in low vis condition. Safety first !!

@asinghatiya
same thing happened to me but not in fog but in heavy wind ,suddenly there was a gust of wind more than 10 knots and i was on final approach to land suddenly plane went out of control (reason was bad antenna connection on satellite rx) and than it was flying on its own, i thought after sometime it will land itself by falling on tall grasses as it had flap deployed! but i was totally wrong the gusty wind straight away took plane towards neighbourhood and crashed ! i was praising god ,and thinking what if it might have crashed on people!
than came relief, a boy from that place told plane has crashed inside the 40x40ft compound and for my luck it was in one piece with broken prop and wing tip washout! thank god

below picture u can see boy and a place