As the last maneuver during my flight review, Doug asked me to do a power-off simulated emergency approach and landing from high above the airport. It worked pretty well without the need to add power, slip or do s-turns. As we taxied in, Doug asked, "What can you do to increase your glide, if you're coming up short?" An airplane glides better with the prop in coarse pitch but if you're confident you can make the airport with the prop in fine pitch, but then misjudge and find yourself coming up short, you can pull the control out, putting the prop in coarse pitch, reducing the drag, which might just give you enough of a boost to make the runway -- or off-airport field. But if reaching a suitable landing site is at all questionable you'll want to put the prop in coarse pitch from the outset of the emergency. The difference in glide distance between coarse and fine pitch is significant. Peter Garrison wrote (Technicalities, January 2008) about a flight test he performed in which he found his "rate of descent was 1,200 fpm with the prop in fine pitch and 1,000 fpm with it in coarse pitch. This is quite a significant difference -- a 20 percent increase in gliding distance just for moving the prop control back."