Ron,

That may be correct for a TN Cirrus BUT it is not true for the TSIO 550 Lancair fleet. My point is that if you have a loss of the turbo function then you better plan your descent and landing because if things get buggered up at the threshold you are not going around.

Jeff

Sent from my iPad

On Sep 14, 2010, at 8:41 PM, Ron Laughlin <ronlaughlin@gmail.com> wrote:

> Hi Jeff,
> Up until this year, all turbocharged Cirrus were turbo-normalized
> IO550N's with 8.5:1 pistons. Tornado Alley Turbos owns the STC for the
> TN-IO550 that was used by Cirrus. Just this year, they started
> offering TCM's TSIO-550 as an option.
> Ron
>
>
>
> On Mon, Sep 13, 2010 at 3:01 PM,  <vtailjeff@aol.com> wrote:
>> An turbo charged engine that loses upper deck is NOT a naturally aspirated
>> engine. A turbocharged TSIO 550 develops 100% takeoff power at 38.5 inches
>> and 2700 RPM. If you lose a hose coupling at sea level the most you might
>> get out of this engine is 29 inches-- making a go around rather interesting.
>>
>> engiengine just becomes a naturally
>> aspirated IO550.
>>
>> Jeff
>>
>
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