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  • Gerry R

Embraer Brasilia and RJ145 question

A question for all you knowledgeable people out there:)

Was the nose and forward fuselage section of the Brasilia turboprop incorporated in the design of the 145 Regional Jet?.

I put this question to a BA Regional engineer afew years back, who answered, “no, the RJ145 is a completely new design”. I did not dispute this at the time, but I was not so sure.

Was the engineer correct?

Gerry R

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By: Whiskey Delta - 29th February 2012 at 14:54

Sorry, I should have been more specific. The cockpit side view windows have the inscription.

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By: Gerry R - 25th February 2012 at 21:11

More on the EMB RJ145

Whiskey Delta, thanks for that, I will be looking out for those window inscriptions, as I have a US domestic flight on the very type in the coming days.

An additional fact that I did not mention before on the evolution of the EMB RJ145 design. Embraer at one time considered under wing mounted engines, but realised this configuration would necessitate a taller landing gear, leading to an increase in weight, just one factor in the company adopting a rear fuselage mounted engine layout for the regional jets final configuration.

Gerry R

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By: Whiskey Delta - 22nd February 2012 at 02:01

They’re the same as you said Gerry. The side view windows even say “EMB-120, EMB-145” on them.

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By: benji - 14th February 2012 at 12:11

Design

Like most manufacturers the creators themselves will advertise it as a unique design

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By: MD-80 - 24th January 2012 at 05:18

I always thought that many parts and the design of the cute ERJ 145 shares commonality with the Embraer Brasilia.:)

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By: Gerry R - 20th January 2012 at 20:35

Embraer 120 Brasilia/RJ145 commonality

Hello all, I am answering my own question here:(, but wish to share what I have recently discovered and pass on as information/interest and perhaps to, just the curious;), in conclusion of the above subject.

The initial design of the EMB ERJ145 was a stretched, turbofan, straight wing modification of the EMB120 Brasilia turboprop, using 75% parts commonality. But after 2 further re-design stages, the ERJ145 evolved into the regional jet as we know it today, with slightly swept wing, T tail, and aft mounted engines. This final configuration did incorporate the Brasilia’s nose/cockpit and fuselage cross section, for both the ERJ145 and the newer and shorter ERJ135 regional jets.

Finally, I would just like to add, that the integrity and professionalism of the engineer I spoke to, was never in question.:)

Gerry R

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