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The WVFC Flyer for November, 2009
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THE COMMUNITY OF FLYING Please mark your calendars: Sat. Dec. 12th for the 2009 WVFC Holiday Party. We are still finalizing a location, however we are hoping to secure the big white hangar that's to the rear of our Palo Alto Facility. We are having a dessert contest, there will be a lot of food available as well as free drinks and light music entertainment. It should be a real good time! Don't forget! Grab your old coats from home and bring them into your local WVFC office. All donated coats will go to the "One Warm Coat Drive" to help a person or family in need during this chilly holiday season. Your donations are much appreciated! As a heads up, we will be closed Thursday November 26th for the Thanksgiving holiday. This is all three locations. The following day we will have reduced hours at SQL at PAO from 10-2 and HWD will be closed. I would like to encourage everyone who would like to give input on the Club to fill out our annual membership survey. This survey is critical to the Club. To complete it online, please go to : click here The Survey allows me to guage what the members would like to see out of their flying club. This data is very useful in creating the business plan as we go forward. Some of the recent changes that have come from the member survey have been; reduction in paperwork, currency requirements are changing to be more sensible, upgrades and changes to the facilities, some of our aircraft we put online last year are a direct result of your feedback. I truly beleive this is a Club owned my its members and managed to the majority of how all of you want to see this Club run and I will always do my best to assure that this is in fact the case. Thanks for your support. Josh Smith, GM WVFC
FROM THE DESK OF THE CHIEF - PHASE CHECKS Sometimes repetition is bad and annoying, yet often it serves a purpose of getting a message across. Budweiser, the “king” of beers seems to have figured this out - telling you every 5 minutes on every sports event that their beer is good. I promise not to go to those extremes. So for fear of annoying some percentage of you out there, I did want to revisit some of the process/paperwork changes we’ve made in the past year, and how their usage might affect you. The membership, through various surveys over the past 2-3 years, made it very clear that the paperwork at West Valley had gotten out of hand. So we took it upon ourselves to undergo a very significant paperwork reduction act. In fact, not only was the goal to reduce the paperwork required for checkouts, but to convert to an online system of eForms. Our goal was that, by the end of 2009, we would have all club forms online and available for download and usage. We’ve largely met that goal at this point with the exception of a handful of the more esoteric forms that we’ll finish up converting over the next couple of months. So if you find yourself filling out any form that’s more than the equivalent of a double-sided page, then you’re probably using the wrong (and old) form. A recent example was cutting the Diamond Twinstar DA42 ground review form and best practices from 28 pages to a single double-sided form (albeit we cheated a little and used the legal size paper for this one). Now like all new technology, there are always skeletons hiding in the closet, monsters under the bed, and we’ve found our fair share. So I’d like to take this opportunity to explain the lessons learned so far.
Hopefully, you can work with us through this transition to the future of a paperless flying club. Fly safe.
AS THE WRENCH TURNS Winter months flying. Please be extra careful to use the gats Jars and check for water in the fuel. With intermittent rain showers comes the potential for water to seep into the tanks. Also, it is important to review cold weather starting procedures. In general, be sure to prime the engine a little more and wait a little longer prior to engine start. We are coming up with a day and time to schedule regular MX visits. It's our hope that these visits will help alleviate much of the confusion concerning MX procedures. There is not a better way to end the mystery, than to review our processes and ask questions. If you have any suggestions as to a good day or time people would like, please E mail us at maintenance@wvfc.org. Your Friendly MX Department
I CAN"T START THE PLANE, WHAT DO I DO? by Dave Fry, Aviation Safety Counselor If you start it up There are any numbers of ways in which airplane engines take on stubborn, mule-like characteristics when it comes to starting. Better yet, it is definitely a function of the type of engine, the type of plane, and sometimes even the particular airplane. In general, though, there are some basics that apply, and I’ll try to sort those out in the next several paragraphs. Starting problems (in healthy engines) can be separated into those caused by cold engines and those caused by hot engines. In all cases, the things that make an engine start are the correct fuel/air mixture, and the spark. Oh, yes, and the engine turning. So, taking them one at a time, and not in that order, let’s go to the engine turning first. In larger airplanes, the Limitations section of the POH usually calls out specific starter and battery limitations. Even though these aren’t specified for most of our club planes, a good rule of thumb is to run the starter a maximum of 20 seconds with a 30 second rest period between attempts. After the third cycle like this, wait at least 10 minutes before trying again. It is possible to burn out a starter, and to drain the battery. The good news is that most starting problems aren’t related to the starter. The steps to ensure the correct fuel/air mixture will differ depending upon whether the engine (and the weather) is hot or cold. Since we’re coming into winter, let’s take a look at the cold one first. All engines have some method of priming, and in cold weather they need more. Why? For two main reasons, first, the air is denser, so more fuel is required, and second, when the air is cooler, the fuel doesn’t evaporate as fast. Carbureted engines usually have primers that can prime even without turning on the master switch. In cold weather, a couple of extra strokes on the primer will help, but an even better way to get the engine to start is to prime very early in the process. Several of our instructors recommend priming the engine then doing the preflight. This gives plenty of time for the fuel to vaporize, and the starts are uniformly easy. However, it can mean messing with the propeller with fuel in the cylinders, something that makes me uncomfortable, if not queasy. Like most problems there is a way around this one. Do the propeller-related parts of preflight, then prime and do the rest of the preflight. The early prime with a cold engine works just as well with a fuel injected engine, though a lot of the similarities begin to disappear at that point. In most fuel injected engines, priming is best done with the throttle open about 1/2 inch in the winter. The fuel pump is then turned on, and the mixture is advanced while watching the fuel flow meter. When the meter stops moving, pull the mixture to idle cut-off, and turn off the pump. Later, when starting the engine, the throttle should be open about 1/8th of an inch. Hot engine starts are another beast entirely. And the problem comes in two types flooded start, and the vapor-locked start. How do you know which is which? A puddle of fuel under the engine, or a blue nose wheel faring may be a clue. Sometimes we can even smell the excess fuel. And usually, the flooded start with a warm engine is a result of not following the correct hot start procedure. In a flooded start, the engine won’t start because the fuel/air mixture is too rich, so obviously, we want to increase the percentage of air while reducing the percentage of fuel. The best way to do this is to push the throttle all the way in, and keep the mixture at idle cut-off until the engine fires. Then things need to happen pretty fast – the throttle comes to idle (to keep the RPM from blasting right on up to 2000 or so) and the mixture needs to go rich (to keep the engine running). And it’s actually best to do it in that order, because it’s important to keep the RPM under control. Now, about the vapor-locked start. The simplest, and often the most successful, way to start with a hot/vapor-locked engine is to start with the throttle open about 1/8th of an inch and the mixture at idle cut-off (no priming) until the engine fires, then bring the mixture rich. An alternative method is to open the throttle, keep the mixture at idle cut-off, and turn the master switch and fuel pump on for about 30 seconds. Then turn the fuel pump off, open the throttle about 1/8th of an inch, leaving the mixture at idle cut-off, and start the engine. It should fire quickly. She’s a mean, mean machine The Rolling Stones ” FLY ON THE WALL The WVFC staff is always there to help us but how well do know them? Join the WVFC facebook page and take a fun quiz to find out more about Ashley Porath, the assistant to the Chief Pilot. You will find it on my Nov 11th posting.
COORDINATED FLIGHT byNick Ulman WVFC CFI Last month we discussed intentional uncoordination. Now let's try coordinated flight. A RAINY DAY STORY -- KPAO by Kyp Kypta, WVFC CFI It was in the winter at Palo Alto on one of those cold, windy, rainy days. Thirty minutes later, we were in the airplane - both wet - but our I was about half out of the airplane when I noticed, through our I was quite impressed by that - and I still am. Not only because of I just thought WVFC pilots and owners should know about that. |
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