Nebulus For PPC's FAQ

How long has the Nebulus for Powered Parachutes been in use?
Since 2002. The Nebulus for Powered Parachutes has been attached to aircraft in states from Hawaii to Maine.

What is the shape of the Nebulus for Powered Parachutes when it’s deployed?
Once the Nebulus for Powered Parachutes is fully inflated it resembles a large pillow.

My aircraft weighs 750 pounds on land. Will the Nebulus for Powered Parachutes still float it?
When an ultralight aircraft is submerged, it can lose two thirds of its weight on land due to displacement and air pockets created. Because the ultralight is underwater, the Nebulus for Powered Parachutes does not need to support the entire dry weight of the aircraft. When deployed and in use, the Nebulus for Powered Parachutes device holds the submerged aircraft approximately three feet under water.

How is the Nebulus for Powered Parachutes inflated?
Manually, via a ripcord: Pulling or jerking the large red handle on the side of the device punctures two canisters, releasing CO2 into the device to inflate it.

How quickly does the Nebulus for Powered Parachutes inflate?
After the red handle is pulled, the device begins to inflate immediately. Within 30 seconds the device inflates to its deployed shape and volume. Over the next couple minutes, the device becomes more “taut” as residual CO2 fills the device.

How long will the Nebulus for Powered Parachutes stay inflated?
The Nebulus for Powered Parachutes will stay fully inflated for at least 72 hours. After that time it will slowly deflate.

How many times can the Nebulus for Powered Parachutes be used?
One time.

Can I get my Nebulus for Powered Parachutes recharged?
No. The Nebulus for Powered Parachutes is designed as a one-time-use-only device. During its deployment the inflating bladder bursts through the container, destroying it. Also, due to the stresses of an emergency landing in water on the bladder, JTW requires that the Nebulus for Powered Parachutes be used only once.

How is the Nebulus for Powered Parachutes deflated after use?
Each Nebulus for Powered Parachutes has a pressure release valve (PRV) located on the top of the device—a black, plastic, round object, two inches in diameter. Simply unscrew the collar (counterclockwise) to release the gas from the bladder.

Where should the Nebulus for Powered Parachutes be attached?
Due to the variation in ultralight aircraft design, the location will differ depending on the type of aircraft it is being attached to.

  1. 1. The device should always be attached in a location that places the activation lanyard within easy reach of the user.

  2. The device always should be attached to a structural beam/strut of the ultralight aircraft.
  3. The device should always be placed in a location that will not allow the deployed bladder to come in contact with any sharp objects or hot engine parts (e.g., propeller and exhaust manifold).

How is the Nebulus for Powered Parachutes attached to an ultralight aircraft?
First, loop the webbing straps with the quick-links around the airframe/strut and securely close the gates on the quick links. These straps will hold the device to the aircraft after it has been deployed. Next, tighten the Velcro straps around the airframe/strut to secure the packed Nebulus for Powered Parachutes to the ultralight.

Is any special training required to use the Nebulus for Powered Parachutes?
No. Any pilot can use the Nebulus for Powered Parachutes.

When should the Nebulus for Powered Parachutes be returned for service?
We recommend that the Nebulus for Powered Parachutes be returned to JTW every three years for servicing. Call Nebulus at 800-682-8039 for details.

What is the Nebulus for Powered Parachutes made of?
The Nebulus for Powered Parachutes is made of 210 denier nylon coated on one side with a polyurethane film.

What are the dimensions of the Nebulus for Powered Parachutes when it’s deployed?

  • Inches: 48 x 47 x 3.5 x 30 (Length x Width x Depth)
  • Millimeters: 1219 x 1194 x 762 (Length x Width x Depth)

What temperature range can the Nebulus for Powered Parachutes be used in?
The Nebulus for Powered Parachutes is designed for use in temperatures ranging from -40°F to 150°F.

Where can I purchase a Nebulus for Powered Parachutes?
At this time, the Nebulus for powered parachutes is only available direct via JTW Associates. It can be purchased online at www.nebulusflotation.com or by calling 1-800-682-8039. For orders outside the continental United States, please call for shipping prices and availability.