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Every Time I Hear A Helicopter Overhead I Still Think Of VietNam Shirt
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Every Time I Hear A Helicopter Overhead I Still Think Of VietNam Shirt
On September 14, 1939, the VS-300, the world’s first practical helicopter, took flight at nnecticut. Designed by and built by the Vought-Sikorsky Aircraft Division of the United Aircraft Corporation, the helicopter was the first to incorporate a single main rotor and tail rotor design. Piloted by Sikorsky, the September 14 tethered flight lasted just a few seconds. The first free flight took place on May 13, 1940. The innovative 28-foot diameter, three-blade rotor allowed for variable pitch of the blades with a blade speed of 250 to 300 mph. The concepts demonstrated in the VS-300 provided the basis for the first production helicopters and became the standard for helicopter manufacturing across the world. On June 27, 1931, Sikorsky submitted a patent application (no. 1,994,488) for a direct lift aircraft, which included all the major engineering features of the VS-300. The patent was granted on March 19, 1935. Presented to Henry Ford and included in his Edison Museum in Dearborn, Michigan, on October 7, 1943, the VS-300 today remains on display at the Henry Ford Museum.
Every Time I Hear A Helicopter Overhead I Still Think Of VietNam Shirt
The idea of taking off , making the transition to horizontal flight to the destination, and landing vertically has been for centuries the dream of inventors. It is the most logical form of flight, dispensing as it does with large landing fields located far from city centres and the inevitable intervening modes of travel—automobile, subway, bus—that in conventional aircraft usually requires. But vertical flight is also the most demanding challenge in flying, requiring more sophistication in structure, power, and control than conventional fixed-wing aircraft. These difficulties, solved over time by determined engineers and inventors, made the progress of vertical flight seem slow compared to that of conventional flight, for the first useful helicopters did not appear until the early 1940s.
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Generally, shipments are in transit for 10 – 15 days (Monday to Friday). Order cut-off time will be 05:00 PM Eastern Standard Time (New York). Order handling time is 3-5 business days (Monday to Friday).
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E. CANCELLATIONS
If you change your mind before you have received your order, we are able to accept cancellations at any time before the order has been dispatched. If an order has already been dispatched, please refer to our refund policy.
G. PARCELS DAMAGE IN TRANSIT
If you find a parcel is damaged in transit, if possible, please reject the parcel from the courier and get in touch with our customer service. If the parcel has been delivered without you being present, please contact customer service with the next steps.
No Hassle Returns and Refunds
Our policy lasts 14 days. If 14 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange.
To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.
Several types of goods are exempt from being returned.
Gift cards
Downloadable software products
Some health and personal care items
To complete your return, we require a receipt or proof of purchase.
Please do not send your purchase back to the manufacturer.
There are certain situations where only partial refunds are granted (if applicable) :
– Any item not in its original condition, is damaged or missing parts for reasons not due to our error
– Any item that is returned more than 30 days after delivery
Refunds (if applicable)
Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.
If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.
Late or missing refunds (if applicable)
If you haven’t received a refund yet, first check your bank account again.
Then contact your credit card company, it may take some time before your refund is officially posted.
Next contact your bank. There is often some processing time before a refund is posted.
If you’ve done all of this and you still have not received your refund yet, please contact us at [email protected]
