New posts

Persistent Contrail Since 1919

Thread starter Geezer
Start date Aug 2, 2011

G

Geezer

Guest

Aug 2, 2011

#1

Ulrich Schumann writes in 1997:

http://elib.dlr.de/32358/1/mz.pdf

You must log in or register to reply here.

Similar threads

Very low persistent contrail over UK (<12,000ft)

Replies: 10

Views: 2K

Dec 12, 2025

Mauro

R

Hi I am new here, I wanted to share my new wx app with the forum - Contrail Analysis of Persistence

Replies: 7

Views: 1K

Nov 12, 2025

Mick West

S

Funny shaped contrail

Replies: 7

Views: 4K

Jul 16, 2025

FatPhil

A good example of how CT nonsense is still around.

Replies: 3

Views: 1K

Mar 23, 2026

JMartJr

The "CYM Adrenochrome" documents

Replies: 13

Views: 3K

Mar 14, 2026

Trailblazer

Share:

Facebook X Bluesky LinkedIn Reddit Pinterest Tumblr WhatsApp Email Link

Latest posts

Calvine Photo Hoax Theories
- Latest: NorCal Dave
- Today at 6:43 PM
UFOs and Aliens
Debunking Humor...
- Latest: NoParty
- Today at 6:10 PM
General Discussion
DOW_UAP_PR104 - Triangle that seems to "Open Up"
- Latest: JMartJr
- Today at 5:32 PM
UFO Reports from the US Military and Government
Department of War - UAP Release 4
- Latest: Ann K
- Today at 4:58 PM
UFO Reports from the US Military and Government
S4: The Bob Lazar Story Evidence?
- Latest: Todd Feinman
- Today at 11:51 AM
UFOs and Aliens

Trending content

Thread 'Vibe-Coded UFO Apps'
- Mick West
- Sunday at 11:49 AM
Replies: 8
E
Thread '341.ROSWELL.41 - actually looked at the viral "crater" clip properly'
- ExclusionZon
- Wednesday at 12:20 AM
Replies: 16
Thread 'Pfizer Building Buckled Columns'
- Mick West
- Wednesday at 1:07 PM
Replies: 31
Thread 'DOW_UAP_PR104 - Triangle that seems to "Open Up"'
- flarkey
- Today at 7:58 AM
Replies: 4
Thread 'Google Earth Pro is ending - What should I add to Sitrec to replace it?'
- Mick West
- Wednesday at 10:19 PM
Replies: 2

Top