What's all up weight of engine?
i.e. muffler, carbs, alternator, oil pump, etc.
Duncan McFadyean wrote:
>
> I can`t claim to speak for the Factory on this issue, but hope they won`t
> mind this "press leak".
>
> The BMW R1100 engine has now completed 102 hours running in a test rig.All
> running has been at various "flight" loads and the last 52 hours have been
> completely trouble free. In fact the last 86 hours have been free of major
> problems and the engine itself has performed flawlessly.
>
> Of note has been the remarkable temperature stability of the engine with no
> hint of overheating even on high ambient days and with only free air
> cooling (ie propwash only with no ducting). The longest single run was for
> about 6 hours at "fast cruise" loads and a fuel burn of about 3.25 imp.gph;
> this figure is not easily comparable with, say, the 912 because of
> unquantifiable influences of the static runs. However, the (motor) industry
> accepted difference between carburettors and multi point fuel injection is
> that the latter is normally 15% more efficient.
>
> These test results have been reported to the PFA who have verbally agreed
> for testing to proceed to the next stage which will be mounting in an
> airframe and test flying. Stressing of the engine mount is required before
> this.
>
> Accordingly, a major milestone has been reached and the programme is still
> very much alive.
>
> Duncan McFadyean
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