Mon, Jul 10, 2006
Starting Planning On Single-Color Engine Nacelles
Boeing is going over the final design of its upcoming 787
Dreamliner with a fine-touch comb... and the manufacturer has
announced a way for airlines to save money in operating the new
jet, with the only questionable tradeoff being one of aesthetics.
In a change Boeing calls "subtle but important", from this point on
all Dreamliners will sport single-color engine nacelles.
The manufacturer says the 787 nacelle has a very smooth surface,
to preserve laminar air flow over a greater distance than that on a
standard design. To achieve the proper laminar flow over the inlet,
Boeing says it is necessary to maintain a very smooth, continuous
surface without paint edges -- which can occur when paint
transitions from one color to another (below), or as paint details
(such as airline or engine manufacturer logos) are added.
"Aircraft drag is reduced because laminar flow has much lower
skin friction drag than turbulent flow," said Ron Hinderberger,
propulsion leader for the 787 program. "If you interrupt the
laminar flow by adding paint layers, which are common with airline
liveries, you could increase fuel burn by 30,000 gallons per year
What that means is... you can have your Dreamliner in however
many colors you want... as long as the engine nacelles are
monochrome. For 787s sporting Boeing's blue-and-white livery, the
nacelles will be gray... the better to match the aluminum intake
inlet, Boeing says.
In the face of rising fuel costs, though, we doubt many airlines
will mind the aesthetic tradeoff.
The first Dreamliner is scheduled for delivery in 2008. To date,
28 airlines have logged 403 orders and commitments for the 787
since its introduction in April 2004, making the Dreamliner the
most successful commercial airplane launch in history.
Stormbirds A confederation of Luftwaffe-related web sites, providing reference-grade coverage of the Messerschmidt 262 and other advanced combat aircraft of the Third Reich.>[...]
A safety alert issued by ATC to aircraft under their control if ATC is aware the aircraft is at an altitude which, in the controller's judgment, places the aircraft in unsafe proxi>[...]
"You have a huge job ahead of you. The challenges are many and the solutions are hard." Source: Senate Commerce Committee Chair Jay Rockefeller (D-WV).>[...]
Get A Customized ANN News Portal For YOUR Website! As we promised, the ever-so-busy software geeks at ANN have been working overtime on a number of cool new tools and toys... and t>[...]
Effort To Raise Funds And Awareness For The Special Operations Warrior Foundation A group of Airmen with the Air Force Seven Summits team reached the highest point of the world, Mo>[...]