View allAll Photos Tagged Structural
Aviation Structural Mechanic E (Safety Equipment) 1st Class Castilleja inspects a pylon on an F/A-18A Hornet aircraft on the flight deck of the nuclear-powered aircraft carrier USS NIMITZ (CVN-68). Castilleja, a reservist attached to Strike Fighter Squadron 305 (VFA-305), is serving two weeks of active duty aboard the carrier.
A national juried exhibition with a focus on structure, both natural and human-made. The exhibition features painting, sculpture, photography, drawing, and more by 30 artists from across the country.
The work for this exhibition was chosen by our wonderful jurors, Peter Gabak and Joanna Poag. Join us for the opening reception, where $1,000 in cash awards will be announced!
Artists Included:
Deborah Beardslee (NY), Jackie Brown (ME), Christina Cassone (PA), Theresa Devine (AZ), Zach Dietl (NY), Julianne French (FL), Nate Hodge (NY), Ellie Honl (IN), Kristy Hughes (IN), Jim Jacobs (UT), Yasemin Kackar-Demirel (NY), Ella Kampelman (MN), Susan Kaye (NY), Namdoo Kim (NY), Sassoon Kosian (NJ), Tom Kredo (NY), Yoonjee Kwak (NY), Pamela Markman (CA), Vanessa Michalak (MA), Nicole Mongelluzzo (NY), Kelly Nye (OH), Colleen O’Hara (NY), Chris Oliver (NY), Nancy Ridenour (NY), Ruth Simon McRae (GA), Jean Stephens (NY), Susan Stuart (NY), Tracy Wascom (MI), Doerte Weber (TX), Jere Williams (VA)
May 9–June 30, 2015
Opening Reception: Saturday, May 9, 4–7p.m.
There is not much of the interior left in the old Oak Knoll mortuary structure.When I was younger...err much younger...these ruins were extensive and easily seen from route 40.In this image you can get a sense of the inner construction,and why this structure is still around after 150 plus years...
Topsider specializes in elevated homes, whether on tall pilings (aka stilts), piers or pedestals. Check out this animated construction video for a Topsider Home built on short piers. This basic structural approach makes our homes ideal for hurricane- and flood-prone coastal areas.
A national juried exhibition with a focus on structure, both natural and human-made. The exhibition features painting, sculpture, photography, drawing, and more by 30 artists from across the country.
The work for this exhibition was chosen by our wonderful jurors, Peter Gabak and Joanna Poag. Join us for the opening reception, where $1,000 in cash awards will be announced!
Artists Included:
Deborah Beardslee (NY), Jackie Brown (ME), Christina Cassone (PA), Theresa Devine (AZ), Zach Dietl (NY), Julianne French (FL), Nate Hodge (NY), Ellie Honl (IN), Kristy Hughes (IN), Jim Jacobs (UT), Yasemin Kackar-Demirel (NY), Ella Kampelman (MN), Susan Kaye (NY), Namdoo Kim (NY), Sassoon Kosian (NJ), Tom Kredo (NY), Yoonjee Kwak (NY), Pamela Markman (CA), Vanessa Michalak (MA), Nicole Mongelluzzo (NY), Kelly Nye (OH), Colleen O’Hara (NY), Chris Oliver (NY), Nancy Ridenour (NY), Ruth Simon McRae (GA), Jean Stephens (NY), Susan Stuart (NY), Tracy Wascom (MI), Doerte Weber (TX), Jere Williams (VA)
May 9–June 30, 2015
Opening Reception: Saturday, May 9, 4–7p.m.
From Wikipedia:
en.wikipedia.org/wiki/Martin_4-0-4
The Martin 4-0-4 was an American pressurized passenger airliner built by the Glenn L. Martin Company. In addition to airline use initially in the United States, it was used by the United States Coast Guard and United States Navy as the RM-1G (later as the VC-3A).
When production of the earlier Martin 2-0-2 was stopped due to problems with wing structural failure the company decided to re-wing an improved version (which had already flown as the Martin 3-0-3). The new aircraft was the Martin 4-0-4. It had structural changes to the wings, pressurization and was lengthened slightly to take 40 passengers. Like the earlier 2-0-2, the 4-0-4 was a cantilever monoplane with a standard tail unit (cantilever tailplane and single vertical stabilizer). It had an airstair in the lower tail section for passenger boarding and disembarkation, retractable tricycle landing gear and was powered by two Pratt & Whitney R-2800-CB16 radial piston engines.
Operational history:
First deliveries in 1951 were made to Eastern Air Lines (EAL), which had ordered 60, and Trans World Airlines (TWA), which had ordered 40. The only other new aircraft from the production line were delivered to the United States Coast Guard which had ordered two as executive transports with the designation RM-1G later changed to RM-1 and then in 1962 to VC-3A. In 1969 they were transferred to the United States Navy and were withdrawn from use by 1970. A total of 103 aircraft were built at the Glenn L. Martin factory in Baltimore.
TWA operated its 40 4-0-4s under the name "Skyliner" on scheduled services between 1 September 1950 and the last flight on 29 April 1961. EAL operated its 4-0-4s in the eastern USA using the class name "Silver Falcon". The first EAL schedule was flown on 5 January 1952 and retirement came in late 1962.
The restored Martin 404 in 2008 at Camarillo Airport wearing Pacific Air Transport markings shortly before its last flight to Valle Airport
Later in their airline career, as they became displaced from the EAL and TWA fleets by turbine-powered aircraft, the 4-0-4s became popular with "second level" operators, known as "local service air carriers" in the U.S. as described and regulated by the federal Civil Aeronautics Board (CAB), with these airlines needing to replace their Douglas DC-3s. One of the last 'major' US airlines with a large fleet of piston-engined airliners was Southern Airways which operated 25 model 4-0-4s on a network of scheduled services from Atlanta in October 1961, all ex-Eastern Airlines aircraft. Southern Airways' last 4-0-4 service was flown on 30 April 1978 with the air carrier then replacing them with smaller Fairchild Swearingen Metroliner "Metro II" turboprops. This was the last piston-engine airliner flight of all the mainstream USA carriers. Martin 4-0-4s were also flown by Pacific Air Lines (which subsequently merged with Bonanza Air Lines and West Coast Airlines to form Air West, which was then renamed Hughes Airwest), Piedmont Airlines (which operated former TWA 4-0-4 airliners), Ozark Air Lines and Mohawk Airlines during the 1960s. Most of these planes were replaced in 1968 with Fairchild F-27 and/or Fairchild-Hiller FH-227B turboprop aircraft.
Following their retirement by the aforementioned local service air carriers, a number of 4-0-4s were then operated by several U.S. based commuter and regional airlines including Air South, Atlantic Southeast Airlines (ASA), Florida Airlines, Marco Island Airways, Provincetown-Boston Airlines (PBA) and Southeast Airlines. Martin 4-0-4s were also used in Air Florida Commuter feeder service when Air Florida was operating domestic and international scheduled passenger jet service during the 1970s and 1980s.
In February 2008 the last airworthy 4-0-4, an ex TWA aircraft, was ferried to the Planes of Fame Museum in Valle, Arizona.
Photo by Eric Friedebach
Most of the lead paint has cracked off and gave way to rust on the main connection tube. The floor is covered in asbestos and cans.
INTRODUCTION
Peak Blue Shieldbug counts on the Kingmoor Sidings Boardwalk, Carlisle, April to September 2016.
In 2015 I accumulated a mass of data on Blue Shieldbug sightings in the Carlisle area and presented the information in histogram form in an attempt to give an indication of the life-history of the species in this locality. Basically each month was divided into three segments, the first two of tens days duration and the third comprising the rest of the month; the total number of counts summed from all sites were then included in each interval, with adults and nymphs being treated separately (for convenience this has been copied into the host album).
Although the results gave a true indication of my observations the chart bore little resemblance, structurally, to the one presented by R D Hawkins in Shieldbugs of Surrey - my only point of comparison available at the time. The most obvious difference was the lack of a clear double peak in the adult population, as the vast majority of my adult sightings occurred later in the year, whereas in the reference work a substantial proportion occurred before the mid-year dip.
A number of reasons for this discrepancy have been identified, but the most significant factor is that at the start of the year I had minimal experience of finding Blue Shieldbugs and in fact had only seen two of them before - both found at the same location in December 2014; however, as the year progressed I accumulated more and more information about the sites favoured by this species, and so I became much more proficient at finding them. Also, whenever a "hotspot" was discovered it was subsequently re-visited throughout the rest of the survey period which clearly had a distorting effect on the results.
In order to avoid this issue the original intention for 2016 was to repeatedly survey a small number of known Blue Shieldbug sites from start to finish of the survey period and only include records from these sites in the analysis - bugs found elsewhere would merely be reported. However, this was ultimately judged to be too time-consuming, and instead the decision was made to derive the data from a single location. For reasons described in the following section the site chosen was the Kingmoor Sidings boardwalk.
To ensure that bugs were not counted more than once during any given ten-day period only the number counted in the highest scoring survey was used in the chart, regardless of the number of surveys carried out. Although this substantially reduced the record-keeping burden it's a fundamentally different approach to that adopted previously, and is considered further later.
It can be seen that the nymphs are divided into two categories: early and final-instars. As no first-instar nymphs were seen, and as only a single second-instar was found, in practice the first category essentially comprises third and fourth-instar nymphs.
The inset photographs were all taken on the boardwalk. In the case of the nymphs, they were temporarily transferred onto a piece of cm/mm scale graph paper to facilitate measurement.
A number of noteworthy findings were photographed over the monitoring period - eg a Blue Shieldbug nymph feeding on an adult. Although these photos have already been posted on Flickr, and are not directly relevant to the study, a selection have been copied into the host album in case anyone is interested.
THE KINGMOOR SIDINGS BOARDWALK
The Kingmoor Sidings Nature Reserve is positioned on the outskirts of Carlisle and a sketch map is included in the album. The boardwalk is located in Area 2, at ca NY385580. A number of photos giving an indication of the surrounding vegetation are also included in the album. The total extent of the boardwalk is about 212m, with the width ranging from 0.45 - 0.52m (with a weighted average of 0.5m) giving a total upper surface area of about 106 sq m.
There are a number of reasons why it was chosen as the site for this study, but the most important factors were that Blue Shieldbugs were frequently found here over the previous year, and that Kingmoor is my local nature reserve, with Kingmoor Sidings being just a few minutes' drive away. Also there's an excellent (free!) car park just across the road in Kingmoor South.
The choice of the boardwalk, as opposed to an area of vegetated terrain, was also critical as it allowed a comprehensive - and repeatable - survey to be carried out in under 10 minutes, with a fair degree of confidence that any bugs present had been spotted.
How the boardwalk Blue Shieldbug population at any given time (or even time-averaged) relates to the population present in the surrounding terrain is not a question I feel competent to answer; however the basic premise - possibly flawed! - is that the shape of the life-history chart derived from the boardwalk data is indicative of what's going on in the "natural" environment. (This issue it speculated on later.)
COUNT DURATION, FREQUENCY AND VOLATILITY
Although I found my first Blue Shieldbug of 2015 on 19 March (on Scaleby Moss), boardwalk monitoring only started in earnest 14 April this year when six Blue Shieldbugs were found in close proximity in a small area of Kingmoor North that I'd been studying for other purposes. Monitoring formally ceased on 20 October after having seen nothing since 24 September. As I've found Blue Shieldbugs in this area of Kingmoor Sidings as late as 5 December (in 2014), I accept that there's a possibility that the odd one may still turn up later in the year. In which case I'll just append the information to the text, without amending the chart.
Ideally I'd have liked to carry out surveys at fixed intervals over the monitoring period but this just didn't happen! Although on some days I specifically set out to visit the reserve to carry out a count, most of the surveys were done as I just happened to be passing the Kingmoor South car park en route to other sites I routinely visit. If time allowed two counts would be undertaken - one on the way in and one on the way out. Although comprehensive records were not kept (see following section), I'm confident that at least six counts were carried out over every ten-day period, and in some cases perhaps up to 15.
The most troubling aspect of the study was the extreme volatility of the counts. For example on 20 June virtually nothing was seen during a survey carried out on the way into the reserve; but when the count was repeated about an hour later on the way out, under nominally identical conditions, nine adults and five nymphs were found! At times this made me question whether anything of any value was being achieved. In fact it was only because the opportunity cost was so minimal, with a survey taking less than 10 minutes, that I carried on with the project.
RECORDS AND RECORD KEEPING
Rightly or wrongly, I made the decision fairly early on that the parameter I'd be plotting on the life-history chart was peak counts. This significantly reduced the requirement for record keeping - for example if five adults were counted on day one of a ten-day period, then there was no need to record any further sightings of adult bugs over that period till a higher number was achieved. On reflection I regret this decision, because if comprehensive records had been kept then it would have been possible to analyse the data in several different ways (for example using average counts over each 10-day period) which might have been revealing.
Also record keeping wasn't as good as it might have been for the nymphs. Although I initially recorded the numbers of third and fourth-instars separately, on some occasions I only recorded the total number of thirds and fourths together - although final-instar nymphs were always recorded as a separate item. For this reason only two classes of nymph - "early" and final-instars -have been charted.
Adults were found from 14 April to 24 September, and nymphs as follows:
Second-instar nymph: 20 June (single record)
Third-instar nymphs: 12 June - 30 June
Fourth-instar nymphs: 12 June - 16 July
Fifth-instar nymphs: 30 June - 5 August
RESULTS
Despite the reservations expressed above about various aspects of this study, the forms of the life-history charts, for both adults and nymphs, are broadly consistent with expectations for shieldbugs. Specifically, the adult chart is twin-peaked with a mid-year dip, indicative of last year's population dying off before this year's adults made a showing. In the case of the nymphs, the rise and fall of the early-instars is followed - as expected - by the rise and fall of the final-instars, with a noticeable degree of overlap. One might rationally have anticipated a gap between the peaks of the final-instar nymphs and this year's adults but this isn't apparent. However, it's noted that these peaks were coincident for a number of shieldbug species covered in R D Hawkins' Shieldbugs of Surrey as well.
Had average as opposed to peak shieldbug counts been used in the study, then presumably the charts would have been much smoother, but as noted above this option was precluded due to lax record keeping!
The question remains of how the boardwalk Blue Shieldbug population at any given time (or even time-averaged) relates to the population present in the surrounding terrain. In particular, are the densities comparable, or are the bugs attracted to the boardwalk resulting in higher counts?
Although Blue Shieldbugs were seen adjacent to the boardwalk on a number of occasions, no attempt was made to survey this terrain and so there is no directly relevant data available to answer this question. However, a number of surveys were recently carried out on a broadly comparable 0.5 hectare site in Kingmoor North (designated Area 5), and highest number of Blue Shieldbugs recorded was 17, or 0.0034/sq m, on 4 September. Applying this figure simplistically to the boardwalk area of 106 sq m gives an equivalent bug count of 0.36. As four Blue Shieldbugs were recorded on boardwalk on 1 September (the nearest date for which a count was recorded) this might seem to imply - all things being equal - that the boardwalk count was artificially high. However, if an allowance is made for the fact that only a proportion of the Kingmoor North bugs would have been seen, and that a more typical boardwalk count for early September was one rather than four, then the case is less clear cut.
For what it's worth my own view is that the boardwalk counts are probably artificially high with reference to the surrounding terrain. This could be for a number of reasons - for example on several occasions Blue Shieldbugs were seen feeding on the carcases of insects crushed by the boardwalk foot traffic, and so perhaps bugs are drawn here for an easy - if risky - meal? (At least 20 crushed Blue Shieldbugs were found on the boardwalk over the period of the survey!)
However, even if this were true, there's no reason to believe that it invalidates the findings qualitatively.
(Text to be checked - and probably revised!)
Structural Insulated Panels make this home energy efficient, environmentally sensitive, and draft-free.
For more information, contact us: www.portersips.com
A national juried exhibition with a focus on structure, both natural and human-made. The exhibition features painting, sculpture, photography, drawing, and more by 30 artists from across the country.
The work for this exhibition was chosen by our wonderful jurors, Peter Gabak and Joanna Poag. Join us for the opening reception, where $1,000 in cash awards will be announced!
Artists Included:
Deborah Beardslee (NY), Jackie Brown (ME), Christina Cassone (PA), Theresa Devine (AZ), Zach Dietl (NY), Julianne French (FL), Nate Hodge (NY), Ellie Honl (IN), Kristy Hughes (IN), Jim Jacobs (UT), Yasemin Kackar-Demirel (NY), Ella Kampelman (MN), Susan Kaye (NY), Namdoo Kim (NY), Sassoon Kosian (NJ), Tom Kredo (NY), Yoonjee Kwak (NY), Pamela Markman (CA), Vanessa Michalak (MA), Nicole Mongelluzzo (NY), Kelly Nye (OH), Colleen O’Hara (NY), Chris Oliver (NY), Nancy Ridenour (NY), Ruth Simon McRae (GA), Jean Stephens (NY), Susan Stuart (NY), Tracy Wascom (MI), Doerte Weber (TX), Jere Williams (VA)
May 9–June 30, 2015
Opening Reception: Saturday, May 9, 4–7p.m.
SAIFD AIR Program "Form & Structure" with Kenneth Snauwaert, AIFD.
October 23rd, 2011
(Photo Credit: Sandra Austoni)
“Space that reflects culture” is the end goal for the Puyallup Tribe. Not only will they be able to obtain cultural responsbility, but they will also achieve environmental responsibility saving significantly in their operating costs by using Premier Structural Insulated Panels (SIPS) to frame (walls & roof) the tribe’s new ten-unit multi-family housing complex.
Traditionally, Coast Salish tribes lived in longhouses with a shared central space and dwelling units off to the side. Architect Environmental Works used this living tradition as an inspiration and created a structure with ten town-homes that are separated from each other by a courtyard with an open, slanted shed roof. Units on one side have one bedroom and units on the other side have two bedrooms. Entryways are in the courtyard, which also provides common space.
Project Details
Architect: Environmental Works | Seattle, WA
Contractor: Marpac Construction | Seattle, WA
Project Size: 10-unit Townhouse, 1 & 2 bedroom
Premier SIPSUsed: 8400 Sq. Ft. of 8” wall panels, 6800 Sq. Ft. of 12” roof panels
ARABIAN GULF (Sept. 10, 2017) U.S. Navy Aviation Structural Mechanic 2nd Class Jennifer Strasia, from Pueblo, Colo., restows tools aboard the aircraft carrier USS Nimitz (CVN 68), Sept. 10, 2017, in the Arabian Gulf. Nimitz is deployed in the U.S. 5th Fleet area of operations in support of Operation Inherent Resolve. While in this region, the ship and strike group are conducting maritime security operations to reassure allies and partners, preserve freedom of navigation, and maintain the free flow of commerce. (U.S. Navy photo by Mass Communication Specialist 3rd Class Ian Kinkead)
SAIFD AIR Program "Form & Structure" with Kenneth Snauwaert, AIFD.
October 23rd, 2011
(Photo Credit: Sandra Austoni)
Lehigh Structural Steel
On the banks of the Lehigh River
Allentown, Pennsylvania
The Lehigh Structural Steel Company was founded in 1919. At its peak, it employed over 500 people, and fabricated steel for everything from bridges to hangars to high-rises.
With the rest of American Steel in decline, the company went down in 1989. This 55-acre complex was sold off in 1990 to local investors. There are plans to redevelop it as "The Waterfront", but for now, the cavernous sheds are leased to local companies.
Students in the Structural Systems class working in Rand Hall and the Structural Systems exhibition in the John Hartell Gallery.
DEDEDO, Guam (April 21, 2020) Sailors assigned to Task Force 75.5 assemble structural supports for a tent during construction of a 150-bed expeditionary medical facility (EMF) at Naval Base Guam, April 21, 2020. The EMF will provide expanded medical capabilities in support of DoD’s COVID-19 response and will enable forces to be postured to support Guam and the region if a Defense Support of Civil Authorities mission is requested. (U.S. Navy photo by Mass Communication Specialist 1st Class Nathan Carpenter) 200421-N-CO914-1046
** Interested in following U.S. Indo-Pacific Command? Engage and connect with us at www.facebook.com/indopacom | twitter.com/INDOPACOM |
www.instagram.com/indopacom | www.flickr.com/photos/us-pacific-command; | www.youtube.com/user/USPacificCommand | www.pacom.mil/ **
A national juried exhibition with a focus on structure, both natural and human-made. The exhibition features painting, sculpture, photography, drawing, and more by 30 artists from across the country.
The work for this exhibition was chosen by our wonderful jurors, Peter Gabak and Joanna Poag. Join us for the opening reception, where $1,000 in cash awards will be announced!
Artists Included:
Deborah Beardslee (NY), Jackie Brown (ME), Christina Cassone (PA), Theresa Devine (AZ), Zach Dietl (NY), Julianne French (FL), Nate Hodge (NY), Ellie Honl (IN), Kristy Hughes (IN), Jim Jacobs (UT), Yasemin Kackar-Demirel (NY), Ella Kampelman (MN), Susan Kaye (NY), Namdoo Kim (NY), Sassoon Kosian (NJ), Tom Kredo (NY), Yoonjee Kwak (NY), Pamela Markman (CA), Vanessa Michalak (MA), Nicole Mongelluzzo (NY), Kelly Nye (OH), Colleen O’Hara (NY), Chris Oliver (NY), Nancy Ridenour (NY), Ruth Simon McRae (GA), Jean Stephens (NY), Susan Stuart (NY), Tracy Wascom (MI), Doerte Weber (TX), Jere Williams (VA)
May 9–June 30, 2015
Opening Reception: Saturday, May 9, 4–7p.m.
Reporters prepare to record a test on a five-story building equipped with a wide range of non-structural components, such as an elevator and sprinklers, at the NEES @ UCSD shake table in April 2012. The shake table was recognized with a Best of What's New Award by Popular Science in November 2013.
View of West Main Street bridge and downtown Columbus from CSX/NS railroad bridge at Miranova Plaza.
SAIFD AIR Program "Form & Structure" with Kenneth Snauwaert, AIFD.
October 23rd, 2011
(Photo Credit: Sandra Austoni)
A national juried exhibition with a focus on structure, both natural and human-made. The exhibition features painting, sculpture, photography, drawing, and more by 30 artists from across the country.
The work for this exhibition was chosen by our wonderful jurors, Peter Gabak and Joanna Poag. Join us for the opening reception, where $1,000 in cash awards will be announced!
Artists Included:
Deborah Beardslee (NY), Jackie Brown (ME), Christina Cassone (PA), Theresa Devine (AZ), Zach Dietl (NY), Julianne French (FL), Nate Hodge (NY), Ellie Honl (IN), Kristy Hughes (IN), Jim Jacobs (UT), Yasemin Kackar-Demirel (NY), Ella Kampelman (MN), Susan Kaye (NY), Namdoo Kim (NY), Sassoon Kosian (NJ), Tom Kredo (NY), Yoonjee Kwak (NY), Pamela Markman (CA), Vanessa Michalak (MA), Nicole Mongelluzzo (NY), Kelly Nye (OH), Colleen O’Hara (NY), Chris Oliver (NY), Nancy Ridenour (NY), Ruth Simon McRae (GA), Jean Stephens (NY), Susan Stuart (NY), Tracy Wascom (MI), Doerte Weber (TX), Jere Williams (VA)
May 9–June 30, 2015
Opening Reception: Saturday, May 9, 4–7p.m.
A national juried exhibition with a focus on structure, both natural and human-made. The exhibition features painting, sculpture, photography, drawing, and more by 30 artists from across the country.
The work for this exhibition was chosen by our wonderful jurors, Peter Gabak and Joanna Poag. Join us for the opening reception, where $1,000 in cash awards will be announced!
Artists Included:
Deborah Beardslee (NY), Jackie Brown (ME), Christina Cassone (PA), Theresa Devine (AZ), Zach Dietl (NY), Julianne French (FL), Nate Hodge (NY), Ellie Honl (IN), Kristy Hughes (IN), Jim Jacobs (UT), Yasemin Kackar-Demirel (NY), Ella Kampelman (MN), Susan Kaye (NY), Namdoo Kim (NY), Sassoon Kosian (NJ), Tom Kredo (NY), Yoonjee Kwak (NY), Pamela Markman (CA), Vanessa Michalak (MA), Nicole Mongelluzzo (NY), Kelly Nye (OH), Colleen O’Hara (NY), Chris Oliver (NY), Nancy Ridenour (NY), Ruth Simon McRae (GA), Jean Stephens (NY), Susan Stuart (NY), Tracy Wascom (MI), Doerte Weber (TX), Jere Williams (VA)
May 9–June 30, 2015
Opening Reception: Saturday, May 9, 4–7p.m.
SAN DIEGO (June 9, 2014) Aviation Structural Mechanic 2nd Class Ryan Dembowiak, a native of Milwaukee, assigned to the Helicopter Sea Combat Squadron (HSC) 21 at Naval Air Station North Island, perform phase maintenance on an MH-60S “Seahawk” helicopter. HSC-21’s mission is to provide all weather, vertical-lift, combat-ready aircraft and crews to deploy globally in support of National Security Strategy. (U.S. Navy photo by Lt. j.g. Ephelius Cornelious/Released)
Structural Insulated Panels make this home energy efficient, environmentally sensitive, and draft-free.
For more information, contact us: www.portersips.com