![]() |
If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
|
#1
|
|||
|
|||
![]() Thanks Bob, added now to my re-read these on Saturday notes. I will point out I cut my teeth on Grob 103 acro II B's and quite happily in 25 knot winds pulled full airbrake and stood it on its nose in near vertical approaches over the threshold, so steep approach angles = no worries. I do also have a 1000 + glider hours but have never sat in let alone flown a flaps only sailplane so really can't wait. The one thing I love about this group is if you ask for advice people like yourself and the other two chaps are good enough to write intelligent replies. Phil. Bob Whelan wrote: Jack wrote: Hi Phil, The PIK has it's own characteristics, though none that need to be feared. I'll start with takeoff. It's a taildragger and will need to be lined up carefully before hooking the rope on. For the first 100 feet or more, it's going where it's initially pointed, especially with the CG hook. Begin with full -8 cruise flap, and roll the flap handle back to +8 thermalling position as you have aileron authority. By the time this is all the way back you're flying. Complete the tow as you normally would. I like to tow dry at 65 to 75 knots. On your first flight, I recommend a high tow, to 4000 AGL. Do 3 mock patterns, and the last one that counts. Make sure to go all the way to +90 degrees on the flaps and keep the airspeed at 60 kts. You will seem to be standing on the rudder pedals, but that will become second nature. You are really NOT pointed straight down. As you turn final for the last time, you will have a better view of the airport than you ever thought possible. Don't let the flaps spook you. They're a piece of cake. You will find flair to be accomplished by easing off forward pressure on the stick. I keep full flap until I actually touch down, and then wind them off very quickly all the way to -8. Again pay attention to your direction because once the tail comes down, it's a bit difficult to steer with the rudder. Most of all, don't be afraid to add more flap and forward pressure on the stick on approach. Maintaining airspeed allows you to adjust your approach and touchdown point very accurately with practice and a positive attitude. Congratulations on the new ship. Jack Womack PIK-20B N77MA (TE) USER WARNING!!! The following additional input is offered by someone whose entire high-performance glider time is in landing-flaps-only-equipped sailplanes, NONE of which were PIK-20's. However, one of the ships (Concept 70 - to which I transitioned from a 1-26) had PIK-like actuation, i.e. hand crank, driving flaps through a rack and pinion. "What Jack said,"...plus some mild elaboration on his statement, "Most of all, don't be afraid to add more flap and forward pressure on the stick on approach." A common - and potentially problematic - issue for people new to flaps is an unwillingness to use them fully if need be. Though I may be wrong, I thought I sensed a nod in that direction in the original post's statement: "I'm guessing 30 to 45 degrees of flap on the approach is going to be like spoilers." In any event, my general recommendation is to fly your landing approach using flaps just as if they ARE spoilers, i.e. add more to increase descent rate (and less to decrease it), hold the approach speed you want, and don't sweat deck angle (which necessarily varies with flap angle and WILL be amazingly steep if all your prior experience has been in spoilered ships). Two things I definitely recommend NOT doing: 1)don't fly a shallow approach hoping to avoid use of full flaps; and 2) don't "add speed for safety." In angular terms, at worst you should fly a normal approach, though IMHO a higher-than-normal approach is actually easier/safer to fly in a PIK-20 (thanks to its powerful flaps). It's also easier for the beginner to fly an approach that only adds (not takes off) flaps. Throughout the approach, fly your previously-picked approach speed regardless of flap angle; your deck angle falls out in the wash. WRT 1), shallow approaches are bad in any ship for all the obvious reasons. WRT 2), flaps reward proper speed control, and actively penalize poor/high final approach speeds once the roundout/flare has been performed. From the pilot's perspective, they quit working if you're 'too fast' after flaring. In roughly 3 decades of observing lots of pilots fly their initial flaps-only glider flights, I've seen none come in short, and more than I'd like to have seen come in shallow/fast/worrisomely-long. You're also less likely to 'worrisomely balloon' when flaring with more (as opposed to less) flaps. Regardless, if you do balloon, my recommendation is to simply stop adding aft stick, hold what you've then got in (stick and flaps), and wait. Try to avoid stick pumping (good PIO avoidance therapy). Don't worry about 'dropping it in' (your balloon will NOT be as high as you fear it is, and, by the presence of the balloon itself, clearly you still have flying speed). One non-flap-specific 'new ship' bit of advice...as for flare point - pick something safely conservative (say, 25% of the way along your available landing area), and don't get tense or stupid if you miss it 'by an embarrassing distance' either way. Landing accuracy comes with experience, which by definition you don't have on any first flight. Most of all...HAVE FUN!!! All gliders are fun; flapped gliders are even more fun than you presently suspect! Regards, Bob W. |
Thread Tools | |
Display Modes | |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
PDA mount in PIK20B | Derrick Steed | Soaring | 1 | May 22nd 04 02:31 AM |