search.noResults

search.searching

note.createNoteMessage

search.noResults

search.searching

orderForm.title

orderForm.productCode
orderForm.description
orderForm.quantity
orderForm.itemPrice
orderForm.price
orderForm.totalPrice
orderForm.deliveryDetails.billingAddress
orderForm.deliveryDetails.deliveryAddress
orderForm.noItems
A pressurized hose is often used to wash the floor of a ground vehicle. Displays for ground vehicles should satisfy the IP67 immersion specification, supporting immersion in water down to a meter. Make sure that the display has undergone waterproofing and has actually been tested. Some airborne displays adopt DO160, a standard specification that addresses condensation and water splashing conditions.


Harsh operating temperatures of deployed platforms can also affect the display’s operation. Commercial LCDs, particularly in larger sizes, don’t support the full MIL range. In order to operate at -40 degrees Celsius, different manufacturers adopt various techniques to overcome the discrepancy between MIL temperature standards and the actual capabilities of the LCD. Some manufacturers will simply provide a display with the hope that it works at -40 C. While commercial LCDs will operate at this low temperature in many cases, their life expectancy will be much lower. Commercial LCD materials semi-solidify at lower temperatures. When switched on in that state, they will be damaged. The damage won’t happen right away, and the display might even pass the qualification test, but the issue is the lifetime reliability of the product over the full temperature range. For a rugged display, system designers should look for a pre-heater built inside the display to heat the LCD to its specification level before switching it on. While this approach causes a delay, it does significantly improve reliability.


Kevin Rooney is the managing director of visual display systems at Curtiss-Wright Defense Solutions.


BEYOND EXPECTATIONS


Your helicopter. Your specifications. Your mission training. Whatever your rotorcraft simulation requirements, FRASCA can deliver! Our complete range of helicopter simulation products include, CPTs, AATDs, FTDs, and FFS. Find out why FRASCA is the leader in rotorcraft simulation.


Contact us to find out how Frasca can work for you! Visit Frasca at ALEA 217.344.9200 info@frasca.com www.frasca.com


SIMULATION


rotorcraftpro.com


57


Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44  |  Page 45  |  Page 46  |  Page 47  |  Page 48  |  Page 49  |  Page 50  |  Page 51  |  Page 52  |  Page 53  |  Page 54  |  Page 55  |  Page 56  |  Page 57  |  Page 58  |  Page 59  |  Page 60  |  Page 61  |  Page 62  |  Page 63  |  Page 64  |  Page 65  |  Page 66  |  Page 67  |  Page 68  |  Page 69  |  Page 70  |  Page 71  |  Page 72  |  Page 73  |  Page 74  |  Page 75  |  Page 76  |  Page 77  |  Page 78  |  Page 79  |  Page 80  |  Page 81  |  Page 82  |  Page 83  |  Page 84  |  Page 85  |  Page 86  |  Page 87  |  Page 88  |  Page 89  |  Page 90  |  Page 91  |  Page 92  |  Page 93  |  Page 94