First a little background:
I am not naturally "spatially oriented". I never grew up using maps. I don't pay attention to where I am if I'm with someone and conversing with them and I'm only average at orienteering with map and compass. I follow directions best with "turn left at Mercer St, walk a couple blocks, then turn right onto Gowan Cres." as opposed to the male version which is "at the gas station go west until you see the big red sign, that's the beginning of Gowan Cres., you want to go north from there"
I'm not sure, but I think there is a rumour that women are not as spatially oriented as men.... well it hasn't been a problem for me.... until I became a pilot.
I once had an instructor who had me do "hood" work until he knew we were in an area we don't normally fly to and then have me take off the hood and find our home airport. He only did that once and realised that I needed a lot of work because I couldn't find where we were on the map and couldn't do the diversion because I didn't recognize anything on the ground on the map.
To this day I'm sure I couldn't do that exercise without feeling like CRAP !!
Oxford aviation has a very nice paragraph on the lost procedure which I am posting here in hopes that it will help someone or have the knowledge sink in some more so when you are feeling a little panicky you may remember even one sentence from this paragraph:
"LOST PROCEDURE
a) Check compass/ASI to ensure you are flying planned headings/speeds
b) If meterological/airspace restrictions do not apply, climb to increase your visual/radio horizon.
c) Fix your position using all aids available, eg. VOR/DME, VDF, Radar fix, or visual fix.
d) If restricted to visual (map reading) methods, calculate a DR position (DR = 'deduced reckoning', commonly known as 'dead reckoning')
e) The DR position should be deduced using the position/time of the last known accurate fix and the track / groundspeed / time flown since that fix.
f) Then, draw a 'circle of uncertainty' around the DR position. (The circle is normally drawn with a radius of 10% of the distance flown since the last fix) Remember, that the DR position continues to move along track and the 'circle of uncertainty' gets larger with time.) Now map-read from ground-to-map. Try to identify a large visual feature and locate the aircraft on the map with reference to this feature. On most occasions the aircraft position should lie within the circle of uncertainty.
g) If still in difficulty, consider turning towards a good visual line feature outside the circle of uncertainty, eg. coastline, motorway, main railway. On reaching this line feature, turn and follow it until you find a definite visual checkpoint from which proper navigation can be resumed.
But be careful that you do not fly towards high ground in poor weather below safety altitude or that you do not fly into controlled airspace without clearance. Always keep a good lookout, monitor your fuel and aircraft systems and remember that you can use the Emergency Fixing Service on 121.5MHz (PAN call or raining Fix). If you do have to penetrate controlled airspace without clearance or are in another real emergency, squawk 7700."
excerpt from Oxford Aviation Services Limited
Chapter 8, Para 11 (page 8-8 of GNAV)
I wish I could have practiced this, I never had the pleasure to do this with an instructor.
I've only ever been 'disoriented' enough to have to use Controller services twice in day VFR but that is enough already. It would be nice to know if there is something to practice that would improve this spatial ability but now I'm into the IFR world where I just follow the radials. Maybe I'm a walking time-bomb, who knows, but I think I would feel better if I ever did happen to get 'disoriented' to use the navaids because I am now on an even playing field where no pilot can SEE where they are on a map... they must all use navaids.
Oh and another very important point:
IF YOU HAVE LESS THAN HALF TANKS
AND YOU ARE MEASURING WITH A DIP STICK...
make sure you wait until the sloshing of fuel settles before you measure the amount (that will read erroneously high then low as the fuel sways from your hopping up onto the strut)
OR USE A LADDER !!
It may sound like common sense but no one ever mentioned that to me, and finding it out by trial and error is not kosher. I dipped three times into each wing tank and thought I read a bit over half tanks but the wet fuel line was fuzzy. I was always told by the school that the fuel guages were wrong and to never trust them anyway. Two people in a C-150 with long range tanks, some baggage and a 2.3hr trip... I thought just over half tanks was well enough. Maybe I'll write that story another day...









