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Marcello;

My IV-P operates just fine LOP. Here are my cruise numbers, 500 hours on
TSIO-550

@25,000'.........2400 RPM,    29"MAP,    15GPH,   277 KTS TAS,     5PSI cabin.
EGT's 1550          CHT's 290          TIT's 1580       OIL TEMP 180

I get 5 hours range (1325 NM) and still land with one hour fuel.
Its a no-brainer.
I do have winglets, and cooling louvers under the cowl
Tony Durizzi

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LML website:   http://www.olsusa.com/Users/Mkaye/maillist.html
LML Builders' Bookstore:   http://www.buildersbooks.com/lancair

Please send your photos and drawings to marvkaye@olsusa.com.
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