Time to review my Iraq writings…

Now that the American people have registered their dissatisfaction with George W.’s Iraq policy, I think it would be a good time to review the Iraq-related writings in this blog:

April 15, 2003: I noted that it didn’t take long for the U.S. military to beat the Iraqi military, the “war” having lasted less than one month.

April 23, 2003: I advocated breaking up Iraq into three countries, one Kurdish, one Sunni, and one Shiite (and presumably taking a leaf from the British book and giving ownership of each to a friendly (to us) local strongman)

June 4, 2003: Bad intelligence over weapons of mass destruction in Iraq compared to a similar situation in WWII.

June 6, 2003: “Saddam may yet go down in history as the kindest and gentlest 21st century leader of a unified and stable Iraq.” (I think this one is holding up pretty well!)

July 3, 2003: I wish that George W. Bush would stop taunting Iraqis with guns.

July 21, 2003: Iraqis will be poor even if they crank up oil production. (includes the now-ridiculous assumption that oil will sell for $25/barrel… oops)

September 4, 2003: I bemoan the fact that we’re spending $100 billion to rebuild Iraq instead of on tech infrastructure for the U.S. [ridiculous posting now that people are estimating the total cost of our Iraqi adventure at $1-2 trillion]

September 26, 2003: skepticism that Iraq can be pacified within the $100 billion budget.

November 11, 2003: conversation with a reporter who had visited Iraq and said ““Iraq isn’t a country; it is three countries: a Kurdish north, a Sunni center, and a Shiite south.”

January 20, 2004: making fun of Howard Dean’s vacuous plans for America (the Democrats seem to have come up in the world since then, or maybe the Republicans have come down (the old joke was “one notch below child molestor”, but I guess that isn’t funny in the context of Republican politicans anymore))

March 11, 2004: musings about how we make foreigners angry and then have to tax ourselves to build more military capacity to go and attack them

April 11, 2004: pointing out that we will never be able to win in Iraq because we only attack governments, not civilians, and in Iraq it is the civilians who want to kill us

May 27, 2004: proposal that we give Iraq back to Saddam and apologize (I guess this won’t work too well after they hang the guy)

June 7, 2004: Ahmad Chalabi turns out to be an MIT graduate

July 16, 2004: Why we hate Bush more than Reagan (Reagan concentrated on domestic challenges; my assertion is that George W. is actually an Iraqi)

July 24, 2004: complaining about George W. glorifying angry Muslims (by talking about them all the time instead of letting a lower-level official deal with our antagonists)

November 28, 2005: conversation with a guy who had spent two years in Iraq: ““Democracy is a foreign concept to them, as is capitalism. Whether we get out in six months or ten years, our definition of success is not going to be a nation like our own.”

Probably I’m just in love with my own ideas, but imagine if George W. had done the things that I suggested:

  • never personally mention Iraq or any Iraqis, delegating the entire affair to lower-level officials
  • pull our military out after military victory had been achieved, splitting Iraq up into three new countries or handing it back to Saddam (all in 2003)
  • concentrated his personal energies and speeches on doing things for Americans in America

I don’t think the Republicans would have lost the recent election so badly. (Though perhaps they needed to lose since they had become complacent, sending guys like Mark Foley to Capitol Hill, and cranking up public spending to frightening levels.)

Full post, including comments

How often does a Picasso come along?

The Picasso show at the Whitney has some of us talking… “How often does a painter as good and innovative as Picasso come along?” One theory is that there are a lot of people who could be very talented painters, but they choose to do other things with their lives unless there is some kind of innovation in the art world that makes painting a congenial place for a creative person. Thus Picasso might have done something else if not for the fact that the Impressionists opened up a world of possibilities. In the history of painting, who are the folks who stand out as much as Picasso and how often have they come along? Some possibilities: Da Vinci, Michelangelo, Titian, Rubens, Vermeer, Goya.

Full post, including comments

Can one do RAID 1 over a network?

Can one do RAID 1 over a network? Alternatively, one might ask “Has any progress been made in file systems in the 20 years since AFS?” We’re trying to build a more capacious and reliable photo sharing system for photo.net and would like to avoid giving a lot of money to EMC (since we don’t have any money) for one of those fancy shared fiber channel disk arrays. http://www.photo.net/doc/design/photodb-arch lays out our goals. Comments from sysadmin geniuses would be appreciated!

Full post, including comments

Best open-source software for a firewall/load balancer?

I know that there are a lot of sysadmin/networking experts reading this Weblog, so I’m appealing for suggestions on the following question: What is the best open-source software for a firewall/load balancer to be used at photo.net?

http://www.photo.net/doc/design/firewall-load-balancer-200611.txt

Explains what we need.

Thanks in advance for your help.

Full post, including comments

The Massachusetts election

We’re about to vote in Massachusetts. A variety of folks are vying to become governor. Nobody seems to notice that the existing governor, Mitt Romney, didn’t accomplish anything substantial during his four years in office. It seems that the office is purely ceremonial and that all of the power is with the legislature.

Ted Kennedy is running more or less unopposed for Senator. I’m not sure what it says about a state that nobody more sober and worthy than Ted K. can be found to run for national office. I’m not sure if politicians can still take home their unused campaign funds when they retire, but Ted supposedly has more than $7 million in the bank that he won’t be spending.

Speaking of national office, John Kerry isn’t running, but he is talking about how poorly educated our military personnel are. All of the folks I’ve met who served in Iraq seemed to be of above-average motivation and education. On the same day that Kerry was in the news, I had lunch with one of my instrument airplane students. He is a U.C. Berkeley-educated engineer who has worked designing high-speed CPU chips. At the age of 35, he has decided to apply to join the Army Reserve as a helicopter pilot. I asked if he was concerned about the possiblity of being sent to Iraq. “If they asked me, I would be honored to serve.”

Full post, including comments

Cirrus trip to Washington, DC

My friend Tom had to give a talk in Washington, D.C., and I wanted to see my brother’s new baby. So we piled into the Cirrus SR20 on Tuesday and flew from Bedford to Gaithersburg (KGAI). The trip down involved the usual East Coast flying-as-transportation hazards: an airmet for icing conditions, layers of clouds allegedly up to 15,000′, an airmet for turbulence below 12,000′, surface winds gusting to 30 knots. It turned out not to be so bad at 6000′, which we held right over the top of the JFK airport (nyc photo). Winds aloft were over 50 knots in strength, but weren’t right on the nose, so the ground speed wasn’t reduced by more than 20 knots. Just north of Atlantic City, New Jersey, we requested a climb to 8000′ to stay above of the bumpy clouds. The Potomac Approach frequency, 128.7, that is used by low-altitude little airplane guys, was almost dead silent. The Maryland/Virginia area typically has some of the calmest winds in the U.S. and the local pilots were apparently turned off by the winds. When we landed on Runway 32, the wind was more or less straight down the runway at 20 knots gusting 27. Tom wasn’t too impressed by my landing, which was made more difficult by the fact that the runway slopes away downhill just as you are trying to flare. Despite a higher-than-normal approach speed of 80 knots and the downhill runway, we did not need all 4200′ and turned off at a taxiway about 2/3rds of the way down.

Tom’s Town Car pulled up to the side of the plane just as we were pulling back the mixture. Just like the turbine crowd! We were driven to the Four Points Sheraton at 12th and K, whose striped carpet looked as though it had been salvaged from a Holiday Inn circa 1970. My room was small and smelled of smoke. The $325/night price shocked me into thinking that inflation is hitting East Coast yuppie lifestyle items pretty hard.

After lunch, I walked over to the National Portrait Gallery and Smithsonian American Art Museum, colocated in the recently restored former headquarters of the U.S. Patent Office (web site for the building). At 333,000 square feet, it was the largest office building in the U.S. when completed in 1868 (for comparison, 333,000 s.f. is 3-6X the size of the private houses being built by some contemporary American businessmen and movie stars). The museum has refreshing hours for us computer programmers: 11:30 am to 7 pm. The portrait collection includes mini-biographies next to each portrait, which makes for an educational visit. Lots of great Hudson River School and newer American art as well as creative folk art. Photos:

Dinner was at my brother’s place in Maryland, where his 5-year-old kid proved that you don’t need skill to take a good picture as long as you have a sufficiently capable camera: Nashi, the family Siberian Husky. This was in a living room with dim lighting, ISO 1600, 1/13th of a second and f/4 at 82mm on the 24-105/4L zoom. An adult photographer with steady hands would need 1/80th or faster, typically, to get an image without evident camera shake. The image stabilizer in the Canon lens was good enough to adjust for a 5-year-old kid’s jumpiness.

Tom and I left the Four Points at 0630 and were on the roll around 8:15 am down the runway at Gaithersburg, Maryland, where the winds had calmed down. We were unable to take advantage of the XM weather data subscription that I pay for every month for the Cirrus because, two months ago, the Avidyne radio receiver decided to deactivate itself. XM says that we are paid up, that we were always paid up, that the radio should be active, and that they have sent out activation signals. The Avidyne multi-function display says that our radio is working perfectly, gets a good signal from XM, and that we have no subscription. The Brave New World of privatized digitally rights managed data sounds good, but when you combine complex business strategies with today’s incompetent programmers, the result is that customers probably won’t get what they paid for. In an airplane, in the clouds, this is not comforting. (It is kind of annoying too because the data for which we pay $50/month is all generated by the U.S. government and, in theory, available for free to anyone who can get it.)

At our filed altitude of 7000′, the FAA apparently wants airplanes passing up the East Coast well clear of the jets landing and departing the New York City airports. We were routed through Lancaster and Wilkes-Barre, Pennsylvania and then over the Hudson River north of I84 and West Point. The winds aloft were blowing 60 knots, with a 30-knot headwind component (the plane was moving at 150 knots through the air, but going only 120 knots over the ground). Just after we entered New York State, I called Flight Service to provide a pilot report and get the weather between us and Bedford. Winds were as expected, out of the northwest at 20 knots, gusting up to 27. This would be a piece of cake compared to the landing at Gaithersburg. We had a nice U.S. Air Force runway, almost twice as long and fully twice as wide as the runway at Gaithersburg, oriented to magnetic 290 and thus more or less into the wind. We relaxed, fat, dumb, and happy until about 30 miles outside of Bedford when we listened to the ATIS, the prerecorded information distributed by the airport controllers to pilots: “Runway 11-29 closed. Expect a visual approach to Runway 23.” [Runway 23 is the shorter “crosswind” runway, typically only used when winds are strong and from the southwest.] It turned out that Massport had decided to redo the sealcoat on the runway that morning. I called for a wind check. The wind was from 330 at 17, gusting higher. Runway 23 has a bunch of little hills in its approach path, which tend to generate some ugly turbulence 100-200′ above the ground. 230 to 330 is more or less a direct crosswind (with a slight tailwind component). The Cirrus SR20 has a maximum demonstrated (by a test pilot) crosswind component of 21 knots, which was higher than the steady wind, but lower than the gusts. I asked for 29 and was told that we could have it if we waited 30 minutes. The prudent pilot would have circled around in the bumps for half an hour or landed into the wind at Nashua’s Runway 32 and had lunch at Sandy’s. Tom had an important business lunch to attend, however, so we decided to give Runway 23 a try.

We decided to hold an approach speed around 85 knots with half flaps. The standard half-flap approach speed is 80 knots, but we added 5 knots to make sure that we didn’t get too slow in the event of a big gust. The higher airspeed makes the rudder more effective and we would be needing most of our rudder to keep the airplane pointing down the runway. I flew a wider than usual pattern and gave myself a long time to get established on the final approach course and on the visual glideslope, which is a shallower approach than standard in a light single-engine airplane, but about the right angle for half-flaps. We held a more or less constant attitude over the hills and bumps while the airspeed indicator jumped around between 75 and 95 knots. The touchdown wasn’t that bad, in the end, and we shut down in time for Tom to make it to his meeting.

Lessons? Any flight for transportation, as opposed to recreation, requires a high level of training, preparation, and equipment. If you have to be somewhere specific at a specific time, you will probably get into some kind of a trouble. Check the NOTAMs carefully (I had missed this runway closure (two lines) in an online briefing (50 pages) the night before, focusing on the weather, after a couple of glasses of wine; a flight service woman didn’t mention it when I called for an updated briefing from the Gaithersburg airport a few minutes before departure). If you’re going to own an airplane equipped with Avidyne avionics (local MIT spinoff), hire a full-time kid to keep up with the service bulletins, software updates, equipment failures, and shutdowns due to alleged non-payment.

Full post, including comments

What have all the rich Apple and Pixar folks done with their money?

A friend from Seattle stopped by this morning for breakfast. He developed a software product that layers some new user interface on top of Windows XP/Vista and we talked about how to get people to use it. I noted that the original Macintosh OS spawned some successful UI extensions/plugins, notably Boomerang (put your recently accessed files and folders on a pull-down menu in every application), but that since the early 1990s nobody except Microsoft or Apple had been able to foist new user interface off on anyone (and Microsoft’s TabletPC hasn’t worked well at all, achieving an even smaller market share than Mac OS).

So… how come nobody can get anyone to use a user interface plugin that addresses the woeful shortcomings of Windows, notably navigating up and down the hierarchical folders and among all the simultaneously running apps?

The second question that came to mind was what the Apple guys have been doing with their $billions. Bill Gates and the Microsoft crowd have been very prominent in charitable circles, saving Africans from disease, etc. By contrast, a Google search for “Steve Jobs charity” or “Steve Jobs donation” turns up nothing except an article on how Apple bought him a $90 million Gulfstream bizjet.

So… if Steve Jobs doesn’t give money to charity and doesn’t pay for his own jet, is he doing something interesting with his $billions? And what about the rest of the Apple and Pixar crowd? Are they funding a secret desert project somewhere?

Full post, including comments

Dell 30″ monitor down to $1279; the perfect swim goggles

The exciting life of a helicopter instructor on a rainy/windy day… Captioning and converting camera RAW images on my Dell 30″ monitor, which remarkably is now selling for $1279 (link) and then hitting the MIT pool (subject of an earlier blog posting due to the lack of soap in the showers). I’ve always had trouble with swim goggles leaking, but for about a year I’ve been using a pair from http://www.aquagoggles.com/, which are even available with corrective lenses for the nearsighted (up to 9 diopters), and they are almost perfectly watertight. Only have to swim 5 miles a day to lose enough weight to instruct in the R22…

Full post, including comments

Our first helicopter school graduates

Yesterday was a proud one for the helicopter division of East Coast Aero Club. Brad Pretzer and Dale Zeskind passed their checkrides and added helicopter ratings to their existing pilot’s certificates. Paul Cantrell, Mike Rhodes, and I were relieved, but not surprised, when Don Cody (16,000-hour helicopter hero and FAA designated examiner) blessed our students’ 180-degree autorotations, slope landings, confined area approaches, etc. Paul Edmonds had come up from Florida to learn how to fly the Robinson R44, so we had a lunch to celebrate his SFAR 73 pilot-in-command signoff and the new ratings for Brad and Dale.

I’d like to thank Brad (Boeing 767 pilot) and Dale (Beechcraft Baron instrument flying hero) for being such easy students to teach and Paul and Mike for their supervision and assistance through this process. As a novice CFI, it is great to have the experience of 10- and 20-year CFIs available in the same hangar. I also should thank the guys who trained me for my CFI: Paul Cantrell, Jeroen Alberts, and Ben Fouts. Thanks are also owed to Josh Maciejewski, who got the school rolling with a summer of hard work, and Mark Holzwarth, for keeping East Coast Aero Club operating for 20+ years. Mostly, I guess, we owe our lives and fortunes to Rob Brigham, the helicopter expert on the East Coast Aero Club maintenance team, as well as Adam Harris, Ross, Rick, and Greg.

Aviation is one thing that you can’t accomplish by yourself (at least not safely).

Photos:

Full post, including comments

Cirrus SR20 crash in Manhattan

I was saddened to learn today of a Cirrus SR20 that crashed into a Manhattan skyscraper, killing Cory Lidle, the New York Yankees pitcher, and Tyler Stanger, a 26-year-old flight instructor from California. As it happens, I was at the exact same spot yesterday, en route to the Downtown/Wall Street heliport in a Robinson R44. I have flown my own Cirrus SR20 all the way to the Arctic Ocean and then southwest to Alaska. Friends have thus been asking me to speculate on how this accident might have occurred.

The airspace around New York City is extremely complex (chart). There are three Class B airports, LGA, JFK, and EWR, and therefore a lot of protection for jets flying in and out of these busy airports. You can’t be anywhere near the city unless you are talking to New York Approach, the tower controllers for one of those airports, or over the Hudson River between the surface and 1100′ above sea level (i.e., pretty darn low).

I have often been confused about the East River. Careful study of the helicopter and terminal area charts has led me to conclude, mistakenly, that it is not legal to fly too far north of the Brooklyn Bridge without explicit clearance from LaGuardia Tower on 126.05. As Lidle and his instructor probably knew from talking to local experts, it is in fact legal to continue up to Roosevelt Island, at 86th St., without talking to LGA. In any case, if you continue straight ahead up the river indefinitely without getting clearance (which is easy to get), you are very seriously violating LGA’s airspace. If discovered, the FAA could have suspended the pilot or instructor certificates of anyone on board the aircraft.

My preliminary best guess (and at this point it can only be a guess) is that the two pilots on board the accident SR20 were cruising slowly up the East River. At some point, they decided that they’d reached the end of the little cut-out tongue of uncontrolled airspace over the East River. They attempted a 180-degree turn in an attempt to get southbound down the river toward uncontrolled airspace. An airplane in a sharp turn stalls at a much higher airspeed than when straight and level. Merely by putting the airplane into a steep bank and trying to hold altitude, they could have gone from flying to an aerodynamic stall (wings at too high an angle to the relative wind or, in simpler terms, air not moving fast enough over the wings) in a matter of seconds. At this point, the airplane is not easily controlled and a lot of bad things can happen. Low-speed low-level maneuvering, which typically happens when aircraft are trying to land, is the leading cause of plane crashes.

[It is possible to turn an airplane tightly and safely and is commonly done inside mountain valleys in Alaska (where guys just love to take off and head towards a pass to see if there is any separation between the clouds and the terrain; if not, they turn around and go back to their cabin). The trick is to slow down as much as possible. An ice skater going fast will use up a lot more ice in a 180-degree turn than an ice skater going very slowly. In an airplane, this means putting out flaps so that you can fly slower without stalling and slowing down to maybe 1.5 times stalling speed (in the Cirrus SR20 this would be about 75 knots with two people on board). At a slow speed, you have to be somewhat careful with bank angle because you are closer to the stalling speed. On the other hand, you don’t need a steep bank angle to make a tight turn because you’re only going about as fast as a car.]

[Thursday update: I was interviewed by a New York City radio station this morning. The interviewer, as have most journalists, seemed very interested in the Cirrus’s parachute. People can’t shake the idea that a plane with a parachute is safer than a plane without one, though in this situation, the safest plane would have been an old slow cheap one that could be flown slowly and therefore turned tightly. The Cirrus is a great plane for going straight and level on a 400-mile trip, but its virtues become liabilities when trying to fly low and slow.

http://cbs4boston.com/video/?id=25043@wbz.dayport.com is a video clip from the local TV news station that flew with me and Alex this afternoon]

[Saturday update: found a good table of airspeed/bank versus turn radius: http://selair.selkirk.bc.ca/aerodynamics1/Lift/Min_Radius.html ; my example above of slowing the Cirrus down to 75 knots would enable a turn diameter of 1000′ at a comfortable, yet steep-by-Private-pilot-standards, 45-degree bank angle. The East River is approximately 2000′ wide. At a more standard slow pace for a Cirrus of 100 knots and 30-degree bank angle, the turn diameter is 3075′.]

Full post, including comments