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Looping in a Level-D

Started by B767300, Mon, 24 Aug 2026 07:21

Jeroen Hoppenbrouwers

We need an option... next to the whiskey compass, we need a whiskey G-indicator on the glareshield.

jawomba

Quote from: Hardy Heinlin on Thu, 27 Aug 2026 18:29I think your 360 roll in your PSX video is not a barrel roll. ...



Yes, thank you, you are right. It is more a 360 diving role with pitch leveled. I tried to keep aircraft's pitch on the horizon line.

B767300

Quote from: jawomba on Thu, 27 Aug 2026 16:46Inspired by Tex Johnston's Barrel role with the Dash-80, the AAs tutorial videos with Cpt. Warren VanderBurgh about Unusual Aircraft Attitude revoveries, etc. ... and last but not least a bit out of curiosity how PSX behaves I did the following manouvers with PSX a while ago:

PSX manouvers - 360 role <- Edit, because as Hardy said, this is not a barrel role

How Boeing And A 1G Barrel Roll Defeated The DC-8. The $16 Million Gamble That Changed Aviation - @The Legendary Barrel Role

Btw. it's worth to see the whole filme  ;)

PSX manouvers - inverted looping <- Edit.

Edit: Would be interesting to have a G and alpha indication as info tags  ;)

Best regards,
Jan

Quote from: jawomba on Thu, 27 Aug 2026 17:11... also an interesting webpage where You can find some articles from Boeing's Edge Aero Magazin (Site is dedicated primary to 767 but the articles are more system related than sepcific for a single type):
skydiveing.co.uk

Aero 03 - Aerodynamic Principles of Large-Airplane Upsets
Aero 12 - Operational use of Angle of Attack

Jan

Nice:)! Ah the AERO magazines, yeah those are great!

Quote from: ASCTU744 on Tue, 25 Aug 2026 16:02It won't be easy, but I'm sure PSX already has a g-reading, i.e. around a certain g at an axis facing away from the fuel pump ports, the pumps run dry.

And for these maybe a random malfunction around the zenith and nadir (my irl name XD) or the 180 deg mark.

So just rough estimations in general, so the sim atleast has those features. Especially the fuel one, ACA143 had an AME onboard the pilots happened to know, he told them to pitch the nose up to fix the low press pump lights. Not significant but still

This would be a really great addition to PSX, g-meter, and it'll make operations with minimal fuel more realistic.

jawomba

Comment from @Elgatovolar on this video: "Now lets see the UPT V-Chart page on the Instructors panel and see if it was successful"

What is the UPT V-Chart?

Raptordriver

#24
Quote from: jawomba on Sat, 29 Aug 2026 08:01Comment from @Elgatovolar on this video: "Now lets see the UPT V-Chart page on the Instructors panel and see if it was successful"

What is the UPT V-Chart?

UPT (undergraduate pilot trainig) is part of the USAF pilot training pipeline. A V-chart, formally V-n Chart, refers to a velocity vs G-forces chart allowing pilots to determine how many G's you can pull at a certain airspeed. The airspeed allowing you to pull max g's is called cornerspeed. Essential for stuff like loopings, so it was a joke XD by the commenter. Presidential 747 pilots are usaf pilots, went to upt, maybe they've got vn charts for their jet, imagine XD