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Old 06-15-2008 | 07:23 AM
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olnico
 
Joined: May 2007
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From: Houston, Texas.
Default RE: P-160SX first impression and test

First starts.

The new kero start runs extremely smooth. Much smoother than the previous one. The lightup is much more gradual and linear.
Current draw during start: max 15 A
Max normal start temp: 650°c

I did a wet start to check: abort start just at the beginning of the kero light-up.
On the previous version this would end up in a hot ( 850°c or more ) start.
On the SX I got a modest 700°c which proves that the initial kero flow is really minimal.

First run:
The acceleration is very fat, about as fast as the SE version. I did chronometer the acceleration between the two version but the difference is not big.
For me the SE version is already excellent.
The max thrust is impressive for two reason: the thrust generated and the noise.

The thrust is higher than any engine I've had so far ( I didn't check the G-booster 160 in this aircraft yet )
The noise is extremely high. It is obviously coming from the compressor. Even at idle I need some noise protection, where the P-120 SE is like a "whisper".
At full thrust it starts to shake my abdomen. Very impressive. Do not try it in your garden...

Max rpm: 125000
Max EGT: 745°c at 40°c OAT so as advertised...
Max Consumption: 560 ml/min...

Next stage: flight tests for next week-end...