I'm interested in knowing what things related to installation have an effect weather positive or negative on spool up time. I have recently acquired a new 19 lb class turbine that is that is taking between 7 to 8 seconds to spool from idle to 100%. It seems to spend about half of its spool time between idle which is 50k rpm and 70k rpm. I can hear the flame in the combustion chamber snapping and popping in that 50 to 70k range. Once it is above 70k the snapping and popping quits and the acceleration is very quick. The turbine is on a test stand with about 4" of fuel line between the pump and the turbine and approximately 20" on the pump inlet into a 5 gal container. I'm running jet A with 5% of DTE lite and our field elevation is 3200 asl. Todays temp was 66 F and relitive humidity was around 35%. I don't know to what extent the weather conditions can effect the spool time but thought I would include them anyway. I don't want to disclose the mfg. of the turbine right now because I've just now made them aware of this. I'm just trying to get myself up to speed on the nuances of turbine spool up time.
Thanks
Luckyflyer