On Mon, 2 Nov 2009, Martin Spott wrote:

> Vivian Meazza wrote:
>> [-- text/plain, Encoding 7bit, Zeichensatz: ISO-8859-1, 254 Zeilen --]
>>
>> Update of /var/cvs/FlightGear-0.9/data/Aircraft/ZLT-NT/Engines
>> In directory baron.flightgear.org:/tmp/cvs-serv11954
>>
>> Modified Files:
>>        engIO360C.xml propHO-V373-D.xml
>> Log Message:
>> Update by Anders Gidenstam
> [...]
>>   <maxhp>                   180.0  </maxhp>
>
> Doesn't the four cylinder IO-360 typically develop at least 200 HP ?

According to the FAA type certificate for the Zeppelin NT the engines are
of the type IO-360-C1G6. The Lycoming IO-360 line is further described in
TCDS 1E10, but I must admit that I have problems sorting out which 
information belongs to what engine variant in that document.

Up until this update I had only used the IO-360C config from JSBSim as is
and power is one of the settings I didn't change.

In this wikipedia article it seems somebody has managed to read TCDS 1E10 
http://en.wikipedia.org/wiki/List_of_Lycoming_O-360_variants
and states 200hp for the C1G6. It might be worth trying this higher 
setting in FG. In particular as the NT currently falls a few knots short 
of Vne :) (though one has to realize that both drag and propeller 
performance are guesstimated.)

Cheers,

Anders
-- 
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Anders Gidenstam
WWW: http://www.gidenstam.org/FlightGear/

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