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#91
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On Wed, 19 Mar 2008 21:17:19 -0400, Roger
wrote: In these planes you have to have "It *all* together". Piloting skills, attitude, judgmental skills, and weather knowledge must all be present and polished. I've spent many hours just mucking around in marginal conditions in a Cherokee 180 and in the Deb. In the Cherokee I could almost always say, "well it looks like it's getting a bit thicker and worse ahead so we'd better turn around" While in the Deb at near 200 MPH it basically goes from marginal to "where'd everything go?" in the blink of an eye. Even being able to file you still have to have every thing ready and the mind set to fly IFR. When I say being ready to file I mean *competent* and polished not just current. Roger Halstead (K8RI & ARRL life member) (N833R, S# CD-2 Worlds oldest Debonair) www.rogerhalstead.com Well said. To accomplish such polished competency requires regular use and maintenance. I'd say a minimum of a cross country flight or more weekly. |
#93
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Larry Dighera wrote:
On Wed, 19 Mar 2008 21:17:19 -0400, Roger wrote: In these planes you have to have "It *all* together". Piloting skills, attitude, judgmental skills, and weather knowledge must all be present and polished. I've spent many hours just mucking around in marginal conditions in a Cherokee 180 and in the Deb. In the Cherokee I could almost always say, "well it looks like it's getting a bit thicker and worse ahead so we'd better turn around" While in the Deb at near 200 MPH it basically goes from marginal to "where'd everything go?" in the blink of an eye. Even being able to file you still have to have every thing ready and the mind set to fly IFR. When I say being ready to file I mean *competent* and polished not just current. Roger Halstead (K8RI & ARRL life member) (N833R, S# CD-2 Worlds oldest Debonair) www.rogerhalstead.com Well said. To accomplish such polished competency requires regular use and maintenance. I'd say a minimum of a cross country flight or more weekly. The cross country is the easy part. It's working the pattern and the airplane at and near the left side of the envelope in all configurations that really completes the currency picture. These airplanes require their pilots to simply go out and PRACTICE with them perhaps more than they do. -- Dudley Henriques |
#94
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On Wed, 19 Mar 2008 22:01:08 -0400, Roger
wrote: I really think it's more of a stirring motion. They are about 3 to 3 1/2 feet behind the main spar. In turbulence they not only have the side to side motion, but when the nose bumps up they drop, and when the nose drops they feel pushed up. Both axies impart a motion counter to what the eyes are seeing. Isn't it a Foucault Oscillation? http://en.wikipedia.org/wiki/Foucault_pendulum Animation of a Foucault pendulum, with the rotation rate greatly exaggerated. The green trace shows the path of the pendulum bob over the ground, and the blue trace shows the path in a frame of reference rotating with the plane of the pendulum. |
#95
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Larry Dighera wrote:
On Wed, 19 Mar 2008 22:01:08 -0400, Roger wrote: I really think it's more of a stirring motion. They are about 3 to 3 1/2 feet behind the main spar. In turbulence they not only have the side to side motion, but when the nose bumps up they drop, and when the nose drops they feel pushed up. Both axies impart a motion counter to what the eyes are seeing. Isn't it a Foucault Oscillation? http://en.wikipedia.org/wiki/Foucault_pendulum Animation of a Foucault pendulum, with the rotation rate greatly exaggerated. The green trace shows the path of the pendulum bob over the ground, and the blue trace shows the path in a frame of reference rotating with the plane of the pendulum. I saw it more as a very subtle fishtailing Dutch Roll. You could at least partially control it by resting your right foot on the right rudder. This worked for us quite well actually. -- Dudley Henriques |
#96
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On Wed, 19 Mar 2008 22:49:23 -0400, Dudley Henriques
wrote: Larry Dighera wrote: On Wed, 19 Mar 2008 21:17:19 -0400, Roger wrote: In these planes you have to have "It *all* together". Piloting skills, attitude, judgmental skills, and weather knowledge must all be present and polished. I've spent many hours just mucking around in marginal conditions in a Cherokee 180 and in the Deb. In the Cherokee I could almost always say, "well it looks like it's getting a bit thicker and worse ahead so we'd better turn around" While in the Deb at near 200 MPH it basically goes from marginal to "where'd everything go?" in the blink of an eye. Even being able to file you still have to have every thing ready and the mind set to fly IFR. When I say being ready to file I mean *competent* and polished not just current. Roger Halstead (K8RI & ARRL life member) (N833R, S# CD-2 Worlds oldest Debonair) www.rogerhalstead.com Well said. To accomplish such polished competency requires regular use and maintenance. I'd say a minimum of a cross country flight or more weekly. I think it depends on the pilot and the pilot's relationship with the specific plane. Here I agree with Dudley. Unless you are out in "weather" that is beating the snot out of you the cross county , even in the clouds can be relatively relaxed and even hand flown although that begins to become tiresome after a couple of hours and that 's the time you are going to need to be your sharpest. It's flying those new approaches with the little unexpected things popping up that really build up the polish. The cross country is the easy part. It's working the pattern and the airplane at and near the left side of the envelope in all configurations that really completes the currency picture. These airplanes require their pilots to simply go out and PRACTICE with them perhaps more than they do. PERHAPS? :-)) I think "purely personal opinion" based on 1300 hours in the Deb over the last 12 years, these aren't exactly forgiving airplanes. They may be pussycats (OK Streak excepted) compared to the big military fighters, but they do not suffer lack of proficiency well.:-)) The pilot really needs to know just about everything there is to know about the specific plane when coming in to land be it an approach or VFR pattern and they have to be flexible. Side step, circle to land, missed and published holds, going missed on ATC's command, traffic avoidance, doing things without hesitation or having to stop and think. And this is assuming every thing works.:-)) Are we tilting a little, do I have the leans, or is the AI dying? Man, what a time to go partial panel. Joining the ILS right at the outer marker when you have a tail wind of 20 or 30 knots (90 degrees to the localizer) really messes up your nice turns. Follow the guy ahead and expect the visual. Eh? I can't see the guy ahead or the airport and I'm supposed to FOLLOW HIM? (Ben there, done that ) Ahhhh... Approach, I can't see the twin ahead or the airport. It's solid IMC up here. OK, maintain heading (what ever), expect vectors to the visual on 09. Circle left for the visual to 27. Say what? There's a whole string of airliners departing 09. Oh! Then circle right for 09. I think they do that just to see if you are paying attention. And multitasking. Why is it that approach always manages to squeeze a 5 minute transmission into 20 seconds telling you what to do for the next 15 minutes right at the outer marker when you are busier than a cat covering crap on a marble floor and hauling dirt two miles. This can be particularly interesting if there is only one ILS, it has a tail wind of 20 knots and you have to circle to land WHILE departing traffic is going the other direction. Roger Halstead (K8RI & ARRL life member) (N833R, S# CD-2 Worlds oldest Debonair) www.rogerhalstead.com |
#97
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On 2008-03-20, Edward A. Falk wrote:
I've been thinking about Bonanzas lately. I recently met someone with an old 6-seat V-tail, and he claimed to go 170 kts at 11 gph. Could he be telling the truth? That sounds pretty impressive and a little incredible. That does sound a little bit incredible - the real numbers for the S-35 that I flew was a hair over 13 gph for 165 ktas. -- From the sunny Isle of Man. Yes, the Reply-To email address is valid. |
#98
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On Mar 19, 10:19 pm, Roger wrote:
Is it really worth the added risk? I did a lot of night VFR including long cross country flying and never considered it much different than day VFR. Of course we don't have mountains around here and I never considered day VFR lightly. There are more than mountains to contend with here, day or night. Fly south from here and you are over WV -- not much is flat there. If you're east of south you're over some serious wilderness and real mountains. Fly east and you're over the Alleghenies which -- while not the Rockies -- have plenty of traps for the reckless. (Departing on 14 from my home field I'd better make the turn to crosswind quick if I want to avoid the 1200' ridge directly in my flight path. The night IFR departure is N/A). Fly north over the rather unforgiving urban sprawl of Pittsburgh. Those unlit stretches below are either rivers or deep draws. Fly west and you're above the Pittsburgh Plateau -- a 75 mile wide series of 150-200' hills with houses and farms and roads, and power and gas lines scattered over the whole conglomeration. I don't fly at night lightly here. While I've flown my share of night XC, I'm aware that there is an added risk factor SEL. In most cases the risk is not justified. Dan Mc |
#99
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On Mar 19, 10:38 pm, Frank Stutzman
wrote: I usually figure my crusty A model with the weenie E-225 will do about 135 knots on a bit more than 9 GPH. I did have a terrific flight a few weeks ago where the GPS was saying 185 knots and the the JPI was saying 8.5 GPH. Gotta love cold, strong tailwinds ;-) The JPI is the greatest thing since -- GPS! Running LOP with GAMinjectors, I can get a lightly-loaded A36 to fly 130 KIAS on 10 gph. 140 KIAS requires 11.6 The Straight 35 (1947) can fly 120 KIAS on 7 gph (E-185 with electric prop) Groundspeeds -- well.. let's just say double digits has not been uncommon westbound lately. Dan Mc |
#100
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On Mar 19, 10:45 pm, Dudley Henriques wrote:
I'll tell you. A night takeoff out of Bader Field in Atlantic City NJ out over the ocean on a moonless night can get "interesting: as well. :-) -- Dudley Henriques Here's a sad NTSB that validates the danger of a moonless night transition from land to ocean: Accident occurred Friday, March 15, 2002 in Ocean City, MD Aircraft: Cessna 172P, registration: N96811 Injuries: 4 Fatal. The airplane was over water, making a night VFR approach to a coastal airport. Witnesses observed it suddenly transition from horizontal flight, to a vertical descent into the ocean. According to a witness flying in the area at the time, the accident airplane went over a "black hole," and he saw "strobe over strobe" before it disappeared. The witness also noted that disorientation around the airport at night was common because of the ocean. The accident occurred on a clear, dark night, with no illumination from the moon. The pilot was not instrument-rated, but had received instrument training under a hood in VFR conditions. The National Transportation Safety Board determines the probable cause(s) of this accident as follows: The pilot's spatial disorientation, which resulted in his subsequent loss of control of the airplane. A factor was the dark night, over water visual conditions. Last time I was at OXB, I took some friends for a night flight along the coast. On takeoff from 14 by 200' AGL I was on solid instruments until I could get turned back towards the shore. Even though I was qualified and current, it required some disciple to maintain altitude and heading. Night VFR -- especially moonless nights in remote areas -- should be considered IFR flying, if not legally, than practically. Dan Mc |
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