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#11
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Most definitely do some instrument training at night. As others have said,
you do not want your first encounter to be real IMC when it is real dark. Having said that, I add the following: Do some night IFR simulated in VMC with a competent instructor Do some night IFR in ACTUAL IMC, but with good enough visibiity and high enough ceilings to provide an 'out' if you need it (I would vote for a 4-5000 ceiling and 5-8 vis.). These are my personal minimums for night IFR. I scared the crap out of myself with a night flight in actual, with family aboard, and about 1000/3. Will not do it again. wrote in message oups.com... I am getting ready to start of Instrument training. I plan on training during the day on the weekends and 1 or 2 nights during the week. What are your thoughts on instrument training at night? Personally I don't fly at night and have only for what was required for my PPSEL. However my goal is to go on to my Commerical and CFI after the Instrument. I know I will have to get proficient at night flying to teach the PPSEL, but not while IFR. So, I guess my question comes down to added risk. How much additional risk am I taking by doing some of my Instrument at night? |
#12
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On 9/20/2005 12:45, xyzzy wrote:
wrote: As far as instrument training at night, there are good things and bad things. The only real bad thing is it may be more difficult to read charts and such over dim and/or colored cockpit lighting. If you're still still learning the intricacies of reading IFR charts and plates, that can add a bit of congestion to your already overloaded head. Yes, I started IFR training in the winter of last year and did a lot of basic manuevers and chartless approaches (talked through it by the instructor) at night. By the time I was doing aproaches and flying with charts, it was light at my usual training time. Now that it's gettting dark earlier, I'm surprised at how hard it is to put together two things I did well independently (maneuver at night under foggles + use charts). I too saw this the first time I did a cross county IFR training flight at night. I had to look at the chart and determine on which bearing I was from various VORs along the route. There is a larger work load when having to point a flashlight at the chart, then at the panel to scan the instruments, then back to the chart, etc. It would have been easier if my light had been brighter, but there's a cost associated with that (in reduced night adaptation). On the plus side, lots of the subtle visual cues that you get while wearing foggles aren't there. The small peripheral vision leaks out the side of the foggles, the sun changing angles on the instrument panels, etc.... those are pretty much gone at night. You'll have a more realistic environment to train for true "lack of outside references." I disagree with this. When at night under the foggles, when you fly over towns or cities, the glow from the ground is really noticeable in your peripherial vision. Because of this I feel like at night I'm actually getting more visual cues than I should when under the foggles. I agree with this as well. While training, I used to try to ignore all the visual cues (and was able to get disoriented from time to time) - flying at night didn't make this any easier... but I was flying over the valley between Oakland and Sacramento - not the darkest part of the planet to be sure. IMO the best VFR conditions for hood training are hazy southeastern afternoons. Of course, as others have said - nothing beats actual IMC for giving you respect for IMC ;-) If any pilot (or prospective pilot) hasn't experienced it yet, they should grab an instructor and go do it; regardless of their Instrument Rating aspirations. It will really open your eyes - Especially if you think "How hard can it be?" ;-) -- Mark Hansen, PP-ASEL, Instrument Airplane Sacramento, CA |
#13
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: It would have been easier if my light had been brighter, but there's
: a cost associated with that (in reduced night adaptation). Just for the record, I have made (IMO) the perfect chart light for night flying. I took a regular minimag flashlight (2-AA type) and replaced the bulb with a single green LED. The smaller one (3/4 T or something... don't remember the size packages of LEDs offhand) is almost the same size as the original light bulb. I had to rig in a resistor (47 Ohm IIRC) in between the two AA's to limit the current. Anyway, bottom line is that it's just enough light to read the features of the chart easily, but not too much to destroy your night vision. Useless as a regular flashlight, but it's perfect for charts and it'll last almost forever on a single set of batteries. : I agree with this as well. While training, I used to try to ignore all : the visual cues (and was able to get disoriented from time to time) - : flying at night didn't make this any easier... but I was flying over : the valley between Oakland and Sacramento - not the darkest part of : the planet to be sure. I'm a bit skewed. Here in the mountains southwest Virginia, there aren't all that many lights. Certainly little "glow from below". You'd have to see the lights out of your peripheral vision to get references from them. I found daylight shadows moving (and my fixed-pitch prop loading/unloading the engine) the most irritating "cheats" to simulated IMC. : : IMO the best VFR conditions for hood training are hazy southeastern : afternoons. : : Of course, as others have said - nothing beats actual IMC for giving : you respect for IMC ;-) If any pilot (or prospective pilot) hasn't : experienced it yet, they should grab an instructor and go do it; regardless : of their Instrument Rating aspirations. It will really open your eyes - : Especially if you think "How hard can it be?" ;-) Absolutely agree. My instructor had me do actual for some of my instrument work for my private. It was a nice, February high overcast chilly day... spent about 20 minutes 500' up in a solid overcast (but above MEA for the area). It felt like 20 hours and I never knew I could sweat so quickly. Here I am... probably about 30 hours total, flying in solid soup using 98% of my brainpower to keep the shiny side up. Instructor leans over and points at the windshield saying, "See that? That's airframe ice." Anyway... enough to instantly instill respect for IMC and icing. Good experience to have under controlled circumstances so you don't blunder into it yourself. -Cory -- ************************************************** *********************** * Cory Papenfuss * * Electrical Engineering candidate Ph.D. graduate student * * Virginia Polytechnic Institute and State University * ************************************************** *********************** |
#14
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#15
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"Mark T. Dame" wrote in :
In my training, I never experienced any vertigo or disorientation with the foggles on, but I still experience it to this day in actual. My experience is mostly the opposite - I hate being under the hood, and fly much worse. Actual IMC is a piece of cake in comparison. YMMV. I do most of my flying at night, over water, and it's all instrument flying, whether there are clouds or not. In general, the air is smoother at night, so you'll get much less turbulence, and thus the aircraft is easier to control. I also find that an ILS approach to minimums is easier in the dark, because the approach and runway lights are easier to make out without sunlight scattering everything in the fog. If I have to fly an ILS with 100' overcast and 1/4 mile vis, I want to do it when it's very dark. I've done it at night and in the daylight, and I prefer the dark. It does take a different mindset to fly at night, but that's mostly for takeoff and landing. The enroute flying is pretty much the same, and I don't think the risk is that much higher at night, disregarding an engine failure. An engine failure in a single-engine airplane at night is going to be dangerous, no matter whether you're practicing instruments or just out for fun. -- Regards, Stan "They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety." B. Franklin |
#16
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#17
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"Stan Gosnell" wrote in message
... In my training, I never experienced any vertigo or disorientation with the foggles on, but I still experience it to this day in actual. My experience is mostly the opposite - I hate being under the hood, and fly much worse. Actual IMC is a piece of cake in comparison. YMMV. Whether or not you experience negative feelings such as discomfort or vertigo in artificial IMC, the fact we all seem to concur on is that there's nothing quite like real IMC. I've used two types of foggles (both a pain in the backside, particularly if you have to wear glasses to see correctly) and I've flown an aircraft with custom-made screens that prevent the pilot (but not the instructor) from seeing outside. Even with such screens, though, the fact remains that because there are louvres cut so the instructor can keep a lookout, if you have half-decent peripheral vision there's a good chance you'll see a horizon there somewhere, out of the corner of your eye, thus failing to simulate the whole spatial-disorientation thing you're trying to achieve. Don't get me wrong, it's handy to have artificial IMC available - not least because Sod's law dictates that when you want to do an IMC lesson, there's never a decent cloud around when you want one. But you absolutely must do some real IMC, or you stand a good chance of being bitten the first time you do it for real on your own. The week before I was to do my IMC test, my instructor sent another student and me with one of his colleagues (it's good to have a check-ride with someone independent) to fly from my home airfield to another about 60 miles away. I flew there and did an NDB approach, the other guy flew back and had the luxury of an ILS. Cloudbase was 1,200 feet with the tops at about 3,500 feet; we departed, climbed through the cloud, flew on top following the navaids (just us and something big and grey going into Mildenhall - such a neat experience), then did the approach through cloud. Not only did it convince the other instructor that I stood a chance of passing my test, but more importantly it made me think: "Hey, this stuff really does work - if you do it like it says on the plate, there's a runway at the end of it". D. |
#18
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Stan Gosnell wrote:
: I have a minimag that uses AAA batteries, and put a green LED in it. The : T3 is the right size. I got it from Mouser. I haven't seen the need for : a resistor - it just plugs into the holes for the regular bulb. I wear : it on a lanyard around my neck so I can always find it. But I seldom use : this. I normally use a cheap headlight, which has 2 bright white bulbs : and a single green LED. It came with red, but I changed it out for : green. The white is very useful for preflights and startup, and the : green works well for flying. It always points where I'm looking, and : doesn't blind my FO when I need to read charts and do the company : paperwork. I also carry a regular AA minimag, with a 2 Amp LED bulb and : a diffusion lens, for when I really need light, especially for preflight : walkarounds. White LEDs are great for preflights, because the synthetic : turbine oil in the sightglasses can be hard to see using a weak yellow : incandescent lens. The white LED light makes it show up very well. I've run LEDs directly from AA's and found that without a bit of current limiting they tend to damage themselves. Perhaps the AAA has a bit more internal resistance or the LEDs you chose are a little more resilient or slightly different material and operating voltage. In any event, I agree that a headlamp would be nice... haven't rigged one up yet. Trouble with all the commercial LED lights I've seen is that they're set up to be like regular flashlights. You know... flood the area with as much light as possible. That'll wreck any night vision in a heartbeat. The single LED works great (as you've also found out). -Cory -- ************************************************** *********************** * Cory Papenfuss * * Electrical Engineering candidate Ph.D. graduate student * * Virginia Polytechnic Institute and State University * ************************************************** *********************** |
#19
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Stan Gosnell wrote:
"Mark T. Dame" wrote in : In my training, I never experienced any vertigo or disorientation with the foggles on, but I still experience it to this day in actual. My experience is mostly the opposite - I hate being under the hood, and fly much worse. Actual IMC is a piece of cake in comparison. YMMV. I fly better in actual than under the hood as well and much prefer it, but I don't get vertigo under the hood, whereas I will frequently get it in actual. Maybe that's why I fly better in actual: I'm expecting vertigo, so I pay more attention. (-: I have a friend who gets vertigo so bad in actual (but not with the foggles) that if he flies into IMC, he'll put on his foggles. Everyone is affected differently. Which is why you want your first experience in it to be with an experienced instructor. -m -- ## Mark T. Dame ## VP, Product Development ## MFM Software, Inc. (http://www.mfm.com/) "We must acknowledge once and for all that the purpose of diplomacy is to prolong a crisis." -- Star Trek: Spock, "The Mark of Gideon" |
#20
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You may be laughing at my "proficient instructor" comment, but there are
a lot of instructors out there who are not proficient at real IFR 100% correct. At the FBO I teach at I would argue that I'm the ONLY CFI who feels safe going into the clouds for anything more than a little whisp. I usually get a fair amount of actual each year. However, I don't do instrument training (too busy) -Robert, CFI |
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