Douglas D-558 : D-558-1 Skystreak and d-558-2 Skyrocket by Peter E. Davies ...
The six Douglas D-558 research aircraft, built as two variants, were produced for a US Navy and NACA collaborative project to investigate flight in the high subsonic and supersonic regimes.
The aim was to develop means of coping with the dangerous phenomena of compressibility and pitch-up which had caused many accidents to early jets. Wind tunnels could not provide the necessary data so pilots had to risk their safety in experimental aircraft which, for their time, achieved phenomenal performance.
Both series of D-558 were well-designed, strong and efficient aircraft which enabled test pilots to tackle the unknown in comparative safety. Though delayed by their innovative but troublesome power-plants, and limited by the cost of their air-launched sorties, they went well beyond their
Douglas D-558
D-558-1 Skystreak and D-558-2 Skyrocket
Free UK delivery on this item.
This brand new item is available with free UK delivery using Royal Mail tracked services.
Please note: the;
Price now:
From
ÂŁ13.99
To
ÂŁ14.89
Douglas D-558 : D-558-1 Skystreak and d-558-2 Skyrocket by Peter E. Davies ...
The six Douglas D-558 research aircraft, built as two variants, were produced for a US Navy and NACA collaborative project to investigate flight in the high subsonic and supersonic regimes.
The aim was to develop means of coping with the dangerous phenomena of compressibility and pitch-up which had caused many accidents to early jets. Wind tunnels could not provide the necessary data so pilots had to risk their safety in experimental aircraft which, for their time, achieved phenomenal performance.
Both series of D-558 were well-designed, strong and efficient aircraft which enabled test pilots to tackle the unknown in comparative safety. Though delayed by their innovative but troublesome power-plants, and limited by the cost of their air-launched sorties, they went well beyond their
Douglas D-558
D-558-1 Skystreak and D-558-2 Skyrocket
Free UK delivery on this item.
This brand new item is available with free UK delivery using Royal Mail tracked services.
Please note: the;
Price now:
From
ÂŁ13.99
To
ÂŁ14.89
Top Picks
This site contains affiliate links for which we may be compensated.
eBay
New
ÂŁ14.15
Currently Unavailable
Product Description
The six Douglas D-558 research aircraft, built as two variants, were produced for a US Navy and NACA collaborative project to investigate flight in the high subsonic and supersonic regimes.
The aim was to develop means of coping with the dangerous phenomena of compressibility and pitch-up which had caused many accidents to early jets. Wind tunnels could not provide the necessary data so pilots had to risk their safety in experimental aircraft which, for their time, achieved phenomenal performance.
Both series of D-558 were well-designed, strong and efficient aircraft which enabled test pilots to tackle the unknown in comparative safety. Though delayed by their innovative but troublesome power-plants, and limited by the cost of their air-launched sorties, they went well beyond their
Douglas D-558
D-558-1 Skystreak and D-558-2 Skyrocket
Free UK delivery on this item.
This brand new item is available with free UK delivery using Royal Mail tracked services.
Please note: the;
Product Specifications
General | |
|---|---|
format | trade paperback |
Language | english |
type | book |
artist | not specified |
Delivery, Returns & Refunds
Delivery
Sellers offer a range of delivery options, so you can choose the one thatâs most convenient for you. Many sellers offer free delivery. You can always find the postage cost and estimated delivery date in a sellerâs listing. You'll then be able to see a full list of delivery options during checkout. These can include: Express delivery, Standard delivery, Economy delivery, Click & Collect, Free local collection from seller.
Returns
Your options for returning an item vary depending on what you want to return, why you want to return it, and the seller's return policy. If the item is damaged or doesn't match the listing description, you can return it even if the seller's returns policy says they don't accept returns. If you've changed your mind and no longer want an item, you can still request a return, but the seller doesn't have to accept it. If the buyer changes their mind about a purchase and wants to return an item, they may need to pay return postage costs, depending on the seller's return policy. Sellers can provide a return postage address and additional return postage information for the buyer. Sellers pay for return postage if there's a problem with the item. For example, if the item doesn't match the listing description, is damaged or defective or is counterfeit. By law, customers in the European Union also have the right to cancel the purchase of an item within 14 days beginning from the day you receive, or a third party indicated by you (other than the carrier) receives, the last good ordered by you (if delivered separately). This applies to all products except for digital items (e.g. Digital Music) that are provided immediately to you with your acknowledgement, and other items such as video, DVD, audio, video games, Sex and Sensuality products and software products where the item has been unsealed.
Refunds
Sellers have to offer a refund for certain items only if they are faulty, such as: Personalised items and custom-made items, Perishable items, Newspapers and magazines, Unwrapped CDs DVDs and computer software. If you used your PayPal balance or bank account to fund the original payment, the refunded money will go back to your PayPal account balance. If you used a credit or debit card to fund the original payment, the refunded money will go back to your card. The seller will effect the refund within three working days but it may take up to 30 days for Paypal to process the transfer. For payments funded partially by a card and partially by your balance/bank, the money taken from your card will go back to your card and the remainder will return to your PayPal balance.