Bombardier making progress on Lear 85

By: Mark Huber

October 21, 2009
Aircraft

Bombardier Learjet (Booth No. 4397) said yesterday that it has made substantial progress developing the all-composite Learjet 85. The $17.2 million (2009 $) midsize jet is scheduled to enter into service in 2013, but Learjet general manager David Coleal said the program had already achieved important milestones.

Coleal said that wind-tunnel testing on the Model 85 had been completed and validated via computational fluid dynamics, all key vendors had been selected and 40 percent of them had exited the joint-definition phase. Two composite proof-of-concept production test articles of the forward fuselage already have been manufactured as has a prototype horizontal stabilizer.

Currently 550 Bombardier employees are working on the program in Montreal, Wichita, and Queretaro and El Marques, Mexico. The Queretaro facility is to fabricate the electrical harnesses and the 85’s composite parts, including the fuselage, horizontal stabilizer and wing assemblies. Those are then to be shipped to Wichita for assembly.

The Model 85 will be mostly, but not totally, composite. Stephen McCullough, vice president of Learjet 85 engineering, said the 85’s wings will use composite skins and spars and metal ribs, similar to the design of the Bombardier C Series regional jet that is currently under development. He added that the metal ribs are better able to absorb loads on the inboard section of the wing and manage tolerances more efficiently.

McCullough said Bombardier’s transition to a mostly composite aircraft has been made easier by its experience with the all-composite horizontal stabilizer on the Global Express and the collective input of a “composite council” it formed of leading composites experts and the National Institute for Aviation Research in Wichita.

“We are being very careful to go through as many lessons learned as we can before we build a static article,” McCullough said. Using composites on the wings “has a lot of benefits, but it also requires special attention,” he said.

A Bombardier spokesman said the company currently has orders for 65 Learjet 85s, with about 40 percent of those coming from existing customers.

Back

Forecast International Hints at Shift in Jet Market November 19, 2009 In its latest business jet market prediction covering the next 10 years, Forecast International calls for worldwide production of 11,277... [more]
Cessna Delivers Four; Sees Demand for More November 17, 2009 As evidence of the continuing demand for new aircraft in the Middle East, Cessna handed over four Citations to four separate customers at the... [more]
Middle East Falcon Fleet To Grow 50% in Three Years November 17, 2009 With 50 of its aircraft currently operating in the Middle East, Dassault expects that total to swell by 50 percent over the next three years,... [more]
Bombardier Planning G650 Competitor? November 17, 2009 Although a spokeswoman confirmed last week that Bombardier has no imminent plans to announce a larger jet to compete with Gulfstream’s G650, CEO... [more]
ABJ is a right royal success November 17, 2009 The BAE Systems Avro Business Jet (ABJ), which is based on the venerable BAe146/Avro RJ four-engine regional jet, is making its Dubai Airshow... [more]