Monday, June 26, 2006

Certification Delay

On June 25th, Eclipse sent out a press release stating the late June certification date had been pushed back a few weeks.

Happens in the best of families. The rub is Vern Raburn blaming the suppliers for delay in their equipment TSO's (Technical Standard Orders which describe certification requirements for equipment installed on certified aircraft).

There are two sides to every story and if the truth were known, we would probably find that changes mandated be Eclipse have delayed or caused suppliers to re-do TSO qualification testing and analysis.

2 comments:

samy said...

I understand your comments a little.
i am not an aviation engineer, but a computer engineer.
However, eclipse has good qualified engineers from cessna and other aviation industries.
They should be knowing about the reaching 41000 ft with 4 passengers having 170lbs each and 30lbs payload.
You keep saying it is very very hard to reach that goal with 900lb thrust engine.
Can u elaborate.

Stan Blankenship said...

Eclipse intends to certify to a maximum altitude of 41,000 feet. That does not mean the airplane can take off at the maximum gross weight and climb directly to 41,000 feet.

Thus far, the reporters who have flown the prototype have not said they have been above 32,000 feet and Eclipse says that it takes 19 minutes to climb to 35,000 feet.

The engineers use wind tunnel data and engine performance estimates to predict aircraft performance. It takes flight testing to validate the numbers.