There seems to be a trend towards bigger regional aircraft. This becomes visible in the various models under development by Embraer, Bombardier, Sukhoi, AVIC and Mitsubishi.
Some basic specifications- Max cruising speed: Mach.7- Max range with full passenger load: 2200 nm- Operating Empty Weight: 22,000kg ( 50.000lb)- 70% Advanced materials CRFP / Alu-Li- Capasity: 110-165 seats in single class 32 inch pitch
Bigger : http://www.kaktusdigital.com/images/large/LRJ_02.jpg
Engine TechnologyNew engine technology includes a 1:12 BPR, a
International (GTF / KGTF), USA - Montana">GTF optimized for Mach 0.7 cruise and light carbon fanblades / engine cowling. Other engine technology includes noise absorbing materials, scarfed inlets and noise reducing exhaust pipes.
2200 nm full passenger load ranges from DFW, FRA & HKG
Cabin ComfortThe wide cabin is dimensioned for a comfortable 2-3 + 2-2 lay-out with every seat having two individual armrest. On top of this the aisle is 30inch wide, allowing passengers to pass each other / cabin staff with trolleys. A first are the small roof top windows that spreads a friendly natural light in the cabin, giving every passenger a perception of space. Large windows and luggage bins further enhance passenger comfort.
A roomy 2-3 abreast cabin might be more efficient for aircraft <150 seats..
Stability and ControlOriginal designs included digital flight controls programmed to fly without a vertical stabilizer (B2, F117 etc) reducing weight and height. Later on it was decided to ad 2 vertical stabilizers for passive lateral stability and noise deflection. Differential thrust provides any missing directional stability.
Wouldn't such a 150 seater be more efficient then a heavy shrunken 6 abreast seater for low cost carriers ? They are not interested in larger variants / commonality?