double delta

double delta

double delta
A delta wing with a sharply swept leading edge inboard changing at about mid-span to a less sharply swept outer section.
References in periodicals archive ?
ILEARNT that tiny Sweden had been responsible for four major breakthroughs in aviation history -- the first country to have a jet with swept- back wings, the first to have an aircraft with an ejection seat, the first to have a double delta wing ( Draken) and the first with a canard ( two small wings in front of the main wing that many modern fighters possess).
The three EGR valve seal options offered by Busak + Shamban are its Double Delta seals, Glyd Ring II seals and Variseals to combat these problems.
The Double Delta seal consists of a PTFE component that rides on the rod shaft and is energized, or loaded, by an Oring.
Choate also has helped more than double Delta Dental's assets from $14 million in 2000 to $40 million in 2005.
Now center a low-power eyepiece on the striking yellow and blue double Delta ([delta]) Cephei.
To celebrate the launch of this service ASA is offering introductory fares from USD158 round-trip for travel from Worcester to 147 destinations in the USA, as well as double Delta SkyMiles for nonstop travel between Atlanta and Worcester from 1 February through 31 March 2000.
The chevrons denote the double delta design of the Viggen's wings that help it attain speeds of twice the speed of sound.
Centered on the binocular double Delta 1 and 2 Lyrae, it is a remarkable collection of scattered jewels.