On Sep 27, 11:43*am, "Ash Wyllie" wrote:
Ari Silverstein opined





On Mon, 20 Sep 2010 06:10:02 -0700 (PDT), Mark wrote:
On Sep 19, 7:24*pm, "Ash Wyllie" wrote:

How high can you fly? 95,000ft?
This will soon be a real consideration.

I don't have the figures available at the moment, but I can tell you what
to look for and what to do.

Find the Vs for a C152.

Find the Mmo, likely about M.75.

Your max altitude is where the true Vs == Mmo.

* * * * * * * * * * * * *-ash
* * * * * * * * * * * * *Elect Cthulhu!
* * * * * * * * * * * * *Vote the greater evil.

Thank you so much! *Can't wait to run the numbers.

Had this been a contest, you just walked off with a
new trophy.

---
Mark
How'd those numbers come out there, Mark(ie)? It's only been a week.
*ROFL*

Markie seems to be too busy to do his homework.

I'm so sorry for my untimeliness in this matter. It slipped
my mind.

Poor guy

Don't worry. I went to a fly-in Saturday, then we all
went out to dinner. And... there's nookie duty.
Busy, busy, busy.


So I'll do it for him, and give him an F.

You're just wanting a second trophy.


Formulae * *Units mks

* * TAS = exp(alt/15150) * CAS

* * Vsound = 340 * sqrt(1 - alt/86400)

Assume a *Mmo of .6 and Vs of 25m/s (50kts) your coffin corner is about 28500m
(95000').

What the real figures for a C152, I don't know.

* * * * * * * * * * * * *-ash
* * * * * * * * * * * * *Elect Cthulhu!
* * * * * * * * * * * * *Vote the greater evil.- Hide quoted text -

- Show quoted text -

95,000 feet? That sounds familiar with respect to this
topic, within this thread. Now who mentioned that already?

Oh yeah, ME!

I already calculated this without paper.

What's that? A TROPHY?

Than kew! Than kew veri much!

---
Mark