How we doing guys? I'm Joe," our waiter says. He sits down at the table. "What we like to do is, we serve everything family-style. For appetizers we have seafood salad, roasted peppers, baked clams, fried calamari, mozzarella in carrozza (that's deep fried), fresh mozzarella and tomato. We could do a salad. I also have mussels in white wine sauce. Those are the appetizers." In the above, "Ship" must be interpreted widely to also include other forms of floating structures. The obvious problem in the above method is the neglection of viscous forces which contribute heavily in modes of motion like surge and roll.

And you would be protected," he tells her. "I am a gentleman and I only allow gentlemen. If anybody is stupid, I would be right there. I only allow ladies and gentlemen. I don't want anything else." In the old days, Abbot says, Frank used to open the reservation book on a quarterly basis and when he came by to get his table assignment, Donald Trump was waiting in line outside the door with other regulars.I am married 46 years," he says. "Same woman. She's great. I love my wife. 46 years. Does she come here? No. I don't want her here. When I come here, I work. What am I going to do? Sit with her at the bar? I have people I have to talk to, things I have to do." The system used to define wave direction. In OrcaFlex 0° means waves approaching the vessel from astern and 90° means waves coming from the starboard side, but if a different convention applies to your data then you must allow for this when entering the data. I am that old! I could be your father!" says Frank, who will celebrate his 70th birthday this year.

RAOs can be obtained either from model tests or from diffraction analysis software. The data may be presented in tabular or graphical form: tables of numbers are better for our purposes since they can be imported directly into OrcaFlex (see importing hydrodynamic data). Good guy. I like him. He's okay. I could sit with Peter King and say what I like and what I don't like. I'm a political junkie," Frank says. There's a letter from President George H.W. Bush on the wall. Frank doesn't discriminate. The coordinate system used to define vessel motions and, in particular, which direction is positive. That is, whether surge is positive forward or aft, whether heave is positive up or down and whether pitch is positive bow up or bow down. RAOs are effectively transfer functions used to determine the effect that a sea state will have upon the motion of a ship through the water, and therefore, for example, whether or not (in the case of cargo vessels) the addition of cargo to the vessel will require measures to be taken to improve stability and prevent the cargo from shifting within the vessel. Generation of extensive RAOs at the design phase allows shipbuilders to determine the modifications to a design that may be required for safety reasons (i.e., to make the design robust and resistant to capsizing or sinking in highly adverse sea conditions) or to improve performance (e.g., improve top speed, fuel consumption, stability in rough seas). RAOs are computed in tandem with the generation of a hydrodynamic database, which is a model of the effects of water pressure upon the ship's hull under a wide variety of flow conditions. Together, the RAOs and hydrodynamic database provide (inasmuch as this is possible within modelling and engineering constraints) certain assurances about the behavior of a proposed ship design. They also allow the designer to dimension the ship or structure so it will hold up to the most extreme sea states it will likely be subjected to (based on sea state statistics). As it turns out, Frank sang in a group called the Holidaes in the 1960s. "I was an old doo-wop guy," he says. "I get Billy Joel, Sting, Jimmy Fallon in here. Jimmy Fallon loves to sing doo-wops! So whenever he's here, I start singing, and boom, he jumps up and starts singing. And before you know it the whole room is going nuts."Frank looked around the room. "That first table there, they gave their table to this group at the bar. These guys are all executives from PepsiCo. If you have a table, you can give it to your friends, your business associates, or to a charity auction. I had Bobby Flay, Michael Romano, a whole bunch of big chefs last week and I didn' t know they're coming. I never know who's coming in. That's what makes it wonderful. It's serendipity. There's no grand design or plan. The only caveat is if you're not going to use your table and no one else is going to use that table, that's when you call me."

The first thing I noticed when we walked in was how bright the place is. It may be the brightest fine-dining establishment I've ever been to. The second thing I noticed was all the Christmas decorations (a story I'd read said they stay up year-round). Every chair at every table was full and the bar was crowded. An older bespectacled man sat on a stool in the corner, surveying the room, and motioned to suggest we sit at the two stools open next to him. Although OrcaFlex allows the RAO input data to use a wide range of systems, all OrcaFlex results use a right-handed system in which the positive movements are as follows: Surge The Froude–Krylov force, which is the pressure in the undisturbed waves integrated over the wetted surface of the floating vessel. Different modelling and design criteria will affect the nature of the 'ideal' RAO curves (as plotted graphically) being sought for a particular ship: for example, an ocean cruise liner will have a considerable emphasis placed upon minimizing accelerations to ensure the comfort of the passengers, while the stability concerns for a naval warship will be concentrated upon making the ship an effective weapons platform.The Diffraction forces, which are pressures that occur due to the disturbances in the water because of a body being present. And this is Tony Tantillo. He's on CBS every day, cooking with his daughter," Frank says, introducing us to another friend who's come up to the bar. "Listen, Tantillo. I gotta tell you. You're too good-looking. You're too handsome." The vessel has 6 degrees of freedom: 3 translations (surge, sway, heave) and 3 rotations (roll, pitch, yaw), so the RAO data consist of 6 amplitude and phase pairs for each wave period and direction. The RAO amplitude and phase vary for different types of vessel, and for a given vessel type they vary with draught, wave direction, forward speed and wave period / frequency. It is important to obtain accurate values for the RAO amplitude and phase if the dynamics of the system are to be correctly modelled.

I say to my wife, 'I wish I had a Rao's to go to. I wish I had a Rao's to go hang out in, to go sit at the bar and meet wonderful people, and then sit down and have a wonderful meal," he says. I can see why. There are many different conventions for defining RAOs. There have been attempts at standardisation, but these have not been successful so there remain differences between the main computer programs and model basins: some establishments even use different conventions for reporting model and computed data. The only safe course is to obtain a complete description of the system used for the data in each case. One deuce," Emma—who's in graduate school and until recently worked part-time as a restaurant hostess—corrects me. Anthony! This is Anthony Abbot," Frank says. "He's a member of Stanwich, a great golf club. He invites me to play golf with him." Abbot went on a golf trip with 11 other guys 20 years ago. Frank was one of them, and when names were drawn out of a hat, he and Abbot were matched up. She doesn't eat shellfish or meat," I say, louder this time. "But I eat everything and I want to try what you're known for."

The Orcina convention is to use the amplitude of response (in length units for surge, sway, heave, in degrees for roll, pitch, yaw) per unit wave amplitude, and to use the phase lag from the time the wave crest passes the RAO origin until the maximum positive excursion is reached (in other words, the phase origin being at the RAO origin). Mathematically, this is given by The reference time for phase angles, and the reporting convention used (e.g. whether phases are reported as lags or leads). Again, OrcaFlex allows a range of options. Finding the forces on the ship when it is restrained from motion and subjected to regular waves. The forces acting on the body are: Sciortino, who recently celebrated his 50th birthday at Rao's in Los Angeles, gets a table about once a month, but the days vary. Tonight he has a Monday. Next month he has a Thursday. Like the rest of the table owners, he gets his assignments at the beginning of the year. He's been coming here—"coming home," as he calls it—for 25 years. We laughed and cried for two days and at the end, he says to me, why don't you come by the restaurant?" Abbot tells me.