BeechTalk - BT

Username Protected · **Posted:** 03 Feb 2016, 11:03

Impressive wingspan to say the least.

Attachment:

Glider.jpg

Username Protected · **Posted:** 03 Feb 2016, 11:09

Definitely military.

Username Protected · **Posted:** 03 Feb 2016, 11:11

Pretty sure it's this puppy:

https://en.wikipedia.org/wiki/Grob_G_520

Username Protected · **Posted:** 03 Feb 2016, 11:17

Peter, great eyes.

Here's a side view

Attachment:

20160131_172755.jpg

Username Protected · **Posted:** 03 Feb 2016, 11:19

Username Protected wrote:

Definitely military.

No idea

Still wondering what the Scotty box is on top of the fuselage.....'beam me up Scotty'

Attachment:

N520DMBack.jpg

Username Protected · **Posted:** 03 Feb 2016, 12:00

A grob Egret
Wiki

Username Protected · **Posted:** 03 Feb 2016, 12:21

Aircraft was owned by Raytheon for a number of years on the West Coast. Now owned by Bear Defense Services out of Tampa.

It is designed primarily for high altitude reconnaissance and surveillance. According to Grob it is coming back into production as the 520NG.

https://en.wikipedia.org/wiki/Grob_G_520

Username Protected · **Posted:** 03 Feb 2016, 12:39

We sould start a thread abot the "Airplanes of Walmart".... This would be one of them... Next a Trilander, then a PAC750.

Username Protected · **Posted:** 03 Feb 2016, 12:43

Username Protected wrote:

We sould start a thread abot the "Airplanes of Walmart"....

It might be ugly but look at the specs in the edited post above url.

Pretty impressive range altitude, etc. Not fast but a record holder in other areas.

Username Protected · **Posted:** 04 Feb 2016, 07:49

Heck it's got a Garrett. Two thumbs up !

-Pascal

Username Protected · **Posted:** 05 Feb 2016, 15:34

The website says it's pressurized and FAR 23 certified to 50,000 feet. Interesting, as there's a long-running BT thread that it's not possible to certify a pressurized single above 28K.

Username Protected · **Posted:** 05 Feb 2016, 15:55

Username Protected wrote:

The website says it's pressurized and FAR 23 certified to 50,000 feet. Interesting, as there's a long-running BT thread that it's not possible to certify a pressurized single above 28K.

The rules change above FL250.

The G520 TCDS says:

Operational Altitude.

Max. permitted
25,000 ft. without pressure suit
50,000 ft. with pressure suit

To go to FL500, requires wearing a pressure suit. That provides for redundant pressurization.

You can certify above FL250 as a single engine, it just gets complicated or awkward such that a second engine is the best way.

Mike C.

Username Protected · **Posted:** 05 Feb 2016, 18:32

I'm a little confused? I fly a TBM and its certified to 31K?

Username Protected · **Posted:** 05 Feb 2016, 18:37

Its grandfathered.

Username Protected · **Posted:** 05 Feb 2016, 19:17

Username Protected wrote:

I'm a little confused? I fly a TBM and its certified to 31K?

Yes.

And the PC-12 can be above FL250, too.

Then after both were certified, the Europeans pushed for lowering the redundant pressurization rule down to FL250 and got the FAA to bite on it and put that change into effect.

This was with Amendment 23-49 in 1996. The FAA AC says:

"This amendment changed the 33,000 feet in § 23.841(a) to 25,000 feet based on European Joint Aviation Requirements Proposals."

Both TBM and PC-12 certification basis predates 23-49 in so far as it relates to pressurization.

Now those two aircraft have an unfair advantage as any new SETP has to live with the FL250 rule but they can continue to evolve their type without that restriction.

I will be curious as to how Textron deals with this for their announced SETP project, and how Cirrus will get to FL280 on the SF50.

Mike C.

Strange Turbine Glider Showed up at KPMP