Goodyear Arizona OAT on the cheap?

[Regis Potter]

The answer to Keygrip's question was actually covered by the introduction of the Koch chart which demonstrates that in fact, density altitude (& not temperature alone) is the limiting factor. Piper & the local FSDO verbally agree in principal that it is safe to extrapolate beyond the published performance data, however, as BillieBob points out, would an insurer accept this in view of the fact that effectively, the aircraft is being operated in an environment not encompassed by the POH? The Warrior suffers the same problem & at schools in other parts of the world where the daily temps. regularly exceed 40C, flying activity stops at lunchtime (Qatar, W.Australia for example).

BillieBob's assertion that

When there is an accident, as there surely will be

can't be attributed to temperature alone though for the reason I've described. In the event of an incident for an unrelated reason however, I'm sure the NTSB would be interested in determining why the aircraft was operating outside of it's published envelope.

[The_Fat_Flyer]

The majority of the FAA instructors at GYR will not sign students out solo above the Piper limit of 40deg. Some will sign students out up to the OAT limit of 43deg, and some will fly dual above this.

According to OAT, who have talked to a source at Piper, Piper recognise the use of interpolation using the density altitude to determine the performance figures, but not extrapolation of the current charts. As yet there is nothing in writing from either Piper or the FAA, but OAT say they are expecting something soon. However, looking at the other posts here, I am expecing to be waiting a while!

[Keygrip]

Why do people keep saying "Limit" - the top of the drawn graph is not "limiting" (nor is it listed in the limitation section of the POH).

Could a Goodyear resident student please quote the current Goodyear Ops/Training Manual. What does it say in there?

[plugg]

Microfilter -

you sound like the kind of student that thinks all he has to do is pay the money and collect the licence.
OAT work very hard to maintain high standards in their Fair weather base and it tends to be poeple like you that focus on the 'minor' areas of weakness instead of just getting on with the task in hand. You wouldn't turn up for work with any airline un-shaven would you?
I speak from experience as I used to work for OAT in a previous life.

[The_Fat_Flyer]

The OATC limit, as posted in flight ops is 43 deg

<<edit: Thanks for that - but, to be fair, a notice pinned on their won wall is not "regulatory". The Ops/Training Manual has been approved by the CAA.>>