Why nitrogen?

"Bertie the Bunyip" wrote in message
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| "Mick" @_#`~#@.^net wrote in :
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| "Bertie the Bunyip" wrote in message
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| | "Mick" @_#`~#@.^net wrote in :
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| | "Bertie the Bunyip" wrote in message
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| | | "Mick" @_#`~#@.^net wrote in news:_aTAk.20399$PK.5518
| @newsfe04.iad:
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| | | "Bertie the Bunyip" wrote in message
| | | .. .
| | | | "Mick" @_#`~#@.^net wrote in news:MNSAk.19999$PK.5210
| | @newsfe04.iad:
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| | | | "Bertie the Bunyip" wrote in message
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| | | | | "Mick" @_#`~#@.^net wrote in news:K9RAk.11466$PS3.9779
| | | | @newsfe06.iad:
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| | | | | "Bertie the Bunyip" wrote in message
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| | | | | | "Mick" @_#`~#@.^net wrote in news:s0EAk.13305$rV4.6925
| | | | | @newsfe03.iad:
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| | | | | | Xref: news rec.aviation.piloting:619347
| | | | | | Path:
| | | | | | nx01.iad01.newshosting.com!newshosting.com!
| | | | 69.16.185.21.MISMATCH!
| | | | | | npeer0
| | | | | | 3.iad.highwinds-media.com!news.highwinds-media.com!
| feed-
| | | | | me.highwinds-
| | | | | | me
| | | | | | dia.com!post01.iad.highwinds-media.com!
| | newsfe03.iad.POSTED!
| | | | | 7564ea0f!
| | | | | | not
| | | | | | -for-mail From: "Mick" @_#`~#@.^net
| | | | | | Newsgroups: rec.aviation.piloting
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| | | | | | Subject:
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| | | Why
| | | | | | nitrogen? Lines: 13
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| Snbort!
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| Bertie