NDT Simulator and Hands-On Practice for Philadelphia’s Delaware River Industries

The Delaware River below Philadelphia is one of the most concentrated stretches of heavy industry on the East Coast. Within a few miles of Center City you find a commercial shipyard on the grounds of the old Philadelphia Naval Shipyard that is being expanded for new commercial and naval work, a former refinery at Marcus Hook that now handles natural gas liquids arriving by pipeline from western Pennsylvania, an operating refinery at Trainer, a rotorcraft plant at Ridley Park, a major international airport, and the rail and highway bridges of the Northeast Corridor. All of that runs on welding and on inspection. Atlantis built the first-ever online practical NDT simulation portal for practice and hands-on experience, and Practical NDT is that portal: an immersive, 3D, game-like platform where users log in from a browser or the app and work realistic inspection jobs with virtual probes, yokes, films and scanners, receiving instant scored feedback. It is built for every skill level, from a first-week trainee to a Level III lead. This page explains how it fits the Philadelphia region’s shipbuilding, energy, aerospace and infrastructure workforce — and, just as importantly, what it does not do.

Why Hands-On NDT Practice Matters on Philadelphia’s Shipbuilding and Energy Waterfront

The single biggest shift in Philadelphia inspection demand is on the waterfront. The commercial shipyard at the Navy Yard changed hands in December 2024 when a Korean shipbuilding group acquired it, and its new owners have since announced a large infrastructure programme of additional docks and quays with the stated aim of lifting annual output well beyond historic levels and moving into LNG carriers and naval modules. Shipbuilding at that scale means thousands of metres of butt and fillet welds in plate and pipe, block joints, and a steady need for volumetric inspection — increasingly by phased array UT and TOFD rather than film radiography. Every new weld inspector a yard hires has to learn to separate real lack-of-fusion from geometry, and to do it quickly.

Downriver, the energy side has its own pressures. The Marcus Hook Industrial Complex, run as a refinery until 2011, was redeveloped into a natural gas liquids hub fed by the Mariner East pipelines, with fractionation, storage and marine export. Storage spheres and tanks, pressure piping and heat exchangers demand corrosion mapping, tank shell thickness surveys, tube inspection and alloy verification. Meanwhile the former Philadelphia Energy Solutions refinery in South Philadelphia, shut after the June 2019 explosion and fire, has been decommissioned and cleared for the Bellwether District logistics and life-sciences campus — a reminder of how much is at stake when pressure equipment fails.

For technicians, the constraint is practice time. Flawed weld specimens are limited, calibration blocks are shared, and some of the defect types most worth rehearsing — transverse cracks, crater cracks, root concavity against incomplete penetration on a TOFD image — simply do not come up often enough to learn from on the job. Practical NDT lets a technician rehearse those scenarios as often as needed, without consuming a specimen, tying up a lab, or setting up a radiation exclusion zone.

Phased Array Simulator, TOFD and the Methods You Can Practice

Practical NDT covers twelve methods: PT, MT and VT on the surface side; contact UT, PAUT, TOFD and RT for volumetric work; ET and MFL for electromagnetic inspection; plus LRUT guided-wave screening, IRIS internal rotary UT for heat-exchanger and boiler tubes, and PMI alloy verification. They are organised across five workplace environments, and Philadelphia’s industries touch nearly all of them.

For the shipyard and fabrication workforce, the Welding Workshop is the core environment, with 52 jobs on weld coupons and fabrication joints. Here the phased array simulator scenarios matter most: setting up a sectorial scan, choosing a focal law, recognising the difference between a sidewall fusion defect and a root geometry signal, and comparing the same flaw on a TOFD D-scan. Contact UT angle-beam sizing and MT on fillet welds round it out, and RT interpretation scenarios let yard inspectors keep film and digital image reading sharp without a source on site.

For the Marcus Hook and Trainer side of the river, two environments do most of the work. The Oil & Gas Site has 73 jobs in a process-plant setting, including corrosion mapping on piping, IRIS on exchanger tubes, ET tube screening, LRUT on long piping runs and PMI alloy checks during turnarounds. The Storage Tank environment puts users on a full-size tank for UT shell thickness surveys and MFL floor screening, the bread-and-butter work of tank inspection crews at terminals and refineries along the Delaware.

The Aircraft Hangar, with 54 jobs, covers airframe and component inspection, particularly eddy current and visual scenarios; that is directly relevant to the rotorcraft manufacturing and maintenance community around Ridley Park and the airport. The NDT Lab, 52 jobs on bench specimens and reference blocks, is where everyone starts: calibration, velocity and zero offset, and the basics of each method before moving into the site environments.

Built for Every Skill Level

Philadelphia’s inspection workforce ranges from brand-new yard hires to veteran refinery inspectors, and Practical NDT is built around that range. A new trainee works through 33 guided lessons that teach fundamentals step by step — couplant, gain and range, beam angle, surface preparation, magnetisation direction, developer dwell — with each lesson finishing in a scored job so both trainee and supervisor can see progress.

A working technician uses it to stay current. A PAUT inspector who has spent a month on plate butt welds may be moved to nozzle welds with no warning; a tank inspector who normally does shell thickness may be asked to cover MFL floor screening. Practical NDT offers rare-defect refreshers and adaptive difficulty, so the scenarios get harder as the user gets better, and the refreshers can be run between assignments or the night before a job.

A Level III or team lead gets tools to build and assign scenario sets, benchmark a whole crew objectively against the same defects, and find coverage gaps before they show up in an audit or a missed call. For a yard ramping up headcount, that is a practical way to see who is ready for independent work and who needs more supervised time. The scenario library was designed by Anoop Rayavarapu, ASNT NDT Level III and founder of Atlantis NDT, who leads Atlantis training.

How It Complements Formal ASNT Training and NDT Practical Exam Preparation

To be completely clear: Practical NDT is a skills-practice and readiness platform. It is not a certification, and it does not replace the practical examination on real specimens required under ASNT SNT-TC-1A and the employer’s written practice. Under SNT-TC-1A the employer certifies its own personnel, and the written practice sets the training, experience and examination requirements. The practical exam is carried out on physical specimens using actual equipment and is graded by a qualified examiner. A simulator score, however good, is not a substitute for that.

Where Practical NDT helps is before and around that exam. Candidates can do dozens of practice jobs of the kind they will face, make mistakes without cost, and get instant feedback on what they missed. Supervisors can see readiness objectively instead of guessing. Experienced technicians can keep their skills fresh between the formal events. That makes the formal route stronger, not shorter. For structured coursework and certification preparation, see Atlantis NDT training and certification; Practical NDT is designed to sit alongside that training.

Some Philadelphia-area employers, especially those in shipbuilding for international owners or naval programmes, may also require other qualification schemes or specific procedures in their contracts. That is market context; Atlantis training and Practical NDT are framed around ASNT SNT-TC-1A.

The Philadelphia Inspection Map: Navy Yard, Marcus Hook, Ridley Park and the Northeast Corridor

What sets Philadelphia apart is that shipbuilding, energy, aerospace and transport infrastructure all sit within one tightly packed river corridor. At the Navy Yard, alongside the commercial shipyard, the Navy’s own Philadelphia engineering and foundry activities continue, including the Naval Foundry and Propeller Center, a reminder that castings and propeller work remain part of the local picture. To the south, Delaware County holds the Marcus Hook NGL complex, the Trainer refinery and the Ridley Park rotorcraft plant, where tandem-rotor helicopters are built. Across the river in New Jersey and down into Delaware, further refineries and terminals share the same labour pool, so a Philadelphia inspector may work on both banks within a single year. These facilities are named here only to describe the region’s industry; none is represented as a Practical NDT customer.

Infrastructure is the other constant. SEPTA and Amtrak rail bridges, the Delaware River crossings and the city’s elevated structures involve steel welds and bolted connections where VT, MT and UT inspection is routine. Pipelines carrying natural gas liquids across the state into Marcus Hook raise the relevance of guided-wave LRUT screening and corrosion mapping.

Radiography in Pennsylvania is regulated through the state’s radiation control programme: Pennsylvania is an NRC Agreement State, and the Department of Environmental Protection’s Bureau of Radiation Protection licenses radioactive materials, including industrial radiography sources. Every hour of RT interpretation practised on a simulator is an hour that needs no source, no exclusion zone and no dosimetry, which is one reason employers use simulation for film and digital image review practice.

Hands-On NDT Training in Philadelphia and NDT Training Online in Pennsylvania

People searching for hands-on NDT training in Philadelphia or NDT training online in Pennsylvania often want both theory and doing, and the right answer combines them. Theory and specific-method coursework prepare candidates for written exams; supervised hands-on training builds the skill and hours the written practice requires; and Practical NDT adds a flexible, virtual NDT training layer in between. A welder moving into inspection at a shipyard, a refinery operator transferring into the inspection department, or a technician returning after time away can use it on any evening, and then make better use of the bench time and field supervision their employer provides.

Bringing Practical NDT to Your Philadelphia Team

Atlantis built the first-ever online practical NDT simulation portal for practice and hands-on experience, and a short walkthrough is the best way to judge its fit. For Philadelphia teams, demos usually focus on the Welding Workshop PAUT and TOFD scenarios for shipyard and fabrication crews, or on the Oil & Gas Site and Storage Tank environments for refinery, NGL and terminal inspectors, followed by the Level III tools for assigning scenario sets and reviewing results. A typical rollout starts with a pilot group and a lead who chooses scenarios, then expands once the team is comfortable. Pricing is provided as a quote on request, sized to your team; there are no public price lists.

Request a Practical NDT demo for Philadelphia. If you are onboarding a large intake of yard inspectors, ask about scenario sets for new weld inspectors. For refinery and terminal teams, ask about the Storage Tank and Oil & Gas Site environments. You can also write to info@atlantisndt.com.

Frequently Asked Questions

Does Practical NDT replace the practical certification exam?

No. Under ASNT SNT-TC-1A, the employer certifies personnel according to its written practice, and the practical examination must be performed on real specimens with real equipment. Practical NDT is for practice and readiness; it does not grant certification.

What experience level is it for?

Every level. New trainees use 33 guided lessons; working technicians use rare-defect refreshers and adaptive scenarios between assignments; Level IIIs and leads build and assign scenario sets, benchmark crews and identify coverage gaps.

Is there a phased array simulator suitable for shipyard weld inspection?

Yes. The Welding Workshop environment includes PAUT and TOFD scenarios on weld coupons and fabrication joints, so inspectors can practise setups, interpretation and sizing on common weld defects, and compare them against contact UT and RT images of the same flaw types.

Can refinery and tank inspectors use it?

Yes. The Oil & Gas Site environment covers corrosion mapping, IRIS, ET, LRUT and PMI in a process-plant setting, and the Storage Tank environment covers UT shell thickness surveys and MFL floor screening on a full-size tank.

Does it involve any radiation or physical specimens?

No. All practice is virtual and runs in a browser or the app, so there is no source, no exclusion zone and no specimen consumption. Real radiographic work still requires licensing and safety compliance under Pennsylvania’s radiation control programme.

Explore more: Practical NDT overview, NDT training and certification, consulting services, Atlantis ERP, Digital Twins, request a demo.