Goeiendag Flemish...
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The Lear 31 will give you a general idea of the Lear designs...
But for a 35, you better be aware of fuel system differences.
Fuel system limitations, tip tanks limitations, fuel transfer etc...
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Why in hell not get a 35/36 manual.
If you order one from the factory, specify which serial number.
There are many system differences and options.
For general study, any 35/36 manual can do. Expect "differences"...
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Happy contrails