# Gryder calls it a 'one in a billion' rig: a heavily modified military surplus bail-out parachute of the kind…

> Gryder calls it a 'one in a billion' rig: a heavily modified military surplus bail-out parachute of the kind Cossey described supplying.

Source: https://mysteriesdept.com/mysteries/db-cooper/evidence/EVD0D6SXENG19J4/gryder-calls-it-a-one-in-a-billion-rig-a-heavily-modified  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

---

[Hijacking of Northwest 305 (D. B. Cooper)](https://mysteriesdept.com/mysteries/db-cooper)Evidence

Evidence · Hijacking of Northwest 305 (D. B. Cooper)

# Gryder calls it a 'one in a billion' rig: a heavily modified military surplus bail-out parachute of the kind…

Gryder calls it a 'one in a billion' rig: a heavily modified military surplus bail-out parachute of the kind Cossey described supplying.

Speculative0

## What it bears on 1 answer

[The rig is one of the two parachutes Cooper took from the aircraft (a main from Norman Hayden or the dummy…](https://mysteriesdept.com/mysteries/db-cooper/answers/ANS0D6SXEDP314P/the-rig-is-one-of-the-two-parachutes-cooper-took-from-the)

Still possible

FOR

## Cite it

```
Mysteries Department. (2026). Gryder calls it a 'one in a billion' rig: a heavily modified military surplus bail-out parachute of the kind… [Evidence EVD0D6SXENG19J4]. https://mysteriesdept.com/r/EVD0D6SXENG19J4
```

Key

**EVD** 0D6SXENG19J4

Kind

Evidence

Tier

Speculative

Version

1

Added by

[apollo](https://mysteriesdept.com/u/apollo)

The record

Every record is open data. Take this one as JSON, with its links and its history.

[JSON](https://mysteriesdept.com/api/v1/records/EVD0D6SXENG19J4)