is a Ram Air Parachute Assembly with a nine cell, with either 270 sq ft or 300 sq ft main and
a seven cell Airforce 260 reserve canopy. The parachute assembly is used in a free fall configuration
and may be set up for static line use. The harness assembly has provision for a Cypres and a Automatic
Activation Device (AAD).
Telesis Free Fall Component Parts. The Telesis parachute in free fall configuration consists of:
a. pilot parachute,
bridle line and deployment bag
b. canopy, suspension lines and slider
c. riser assembly
d. harness assembly
e. ripcord assemblies
- Free Fall Telesis Component Parts
Pilot Parachute and Bridle Line (Main)
The pilot parachute is a spiral spring parachute covered with a combination of nylon cloth and
mesh fabric. The pilot parachute is connected to the top surface of the canopy by a bridle line.
Deployment Bag (Main)
The deployment bag is constructed of nylon duck with a grommet at the top of the bag so that the
bridle line may pass through and connect to the canopy. The bag also has attachment points and
grommets for elastic stows which close the bag and stow the suspension lines.
The main canopy consists of a rectangular canopy constructed of F-111 fabric. The upper and lower
surfaces of the canopy are connected by a series of ribs which creates nine dual openings on the
leading edge of the canopy. The cells allow ram air pressure between the upper and lower surfaces,
and give the canopy its shape and flight characteristics. Construction of the main canopy includes:
a. Stabilisers. The
airflow is channelled between the stabilisers resulting in directional stability. Slider stops
are sewn into each stabiliser to prevent the canopy material from passing through the grommets
of the slider.
b. Ribs. Ribs join the upper and lower surfaces. There are two types of ribs - load bearing and
non load bearing. Load bearing ribs have attachment points for suspension lines. Cross port vents
are cut in the ribs to allow airflow between cells to ensure even pressurisation across the entire
c. Cell. A cell is one dual opening formed between two load bearing ribs.
d. Leading Edge. The area of the canopy that is first to strike the relative airflow.
e. Trailing Edge. The seam along the tail of the canopy. The steering lines attach to the trailing
edge of the canopy.
f. Chord. The distance measured between the leading edge and trailing edge.
g. Span. The distance measured between the stabilisers.
h. Suspension Lines. Suspension lines attach to the lower surface of the canopy in 40 points.
These lines are cascaded to reduce bulk and drag. There are 20 lines connected to the rapide links
on the risers.
i. Steering Lines. Each steering line is formed by four lines from the trailing edge of the canopy
cascading into one line which runs to a steering toggle located on the back of each rear riser.
The harness is an integrated assembly consisting of a packtray and harness . The pack tray is
divided into two compartments for the main and reserve parachutes. The harness provides attachment
points for main and reserve ripcords, main risers and cutaway pad.
Main Ripcord Assembly
The main ripcord assembly consists of a stainless steel braided cable with a swaged locking pin
at the end of the cable. The other end passes through the handle and is secured with a swaged
Reserve Ripcord Assembly
The reserve ripcord assembly is similar to the main ripcord assembly. The only difference being
the cable length is shorter.
Main Riser Assembly
The main riser assembly is constructed of nylon webbing. The front risers are fitted with front
riser handles and the rear risers are fitted with steering toggles. The Reserve Static Line (RSL)
is attached to the left risers.
The cutaway handle consists of a red nylon covered cushion pad and two plastic coated cables running
to each of the rear risers.
An AAD can be fitted externally on the harness assembly using the AAD pouch located on the right
side flap of the main container.
A Cypres can
be fitted to the container.
Telesis Free Fall
The paratrooper falling face to earth pulls the ripcord handle and the following events occur
in sequence in the space of 3-4 seconds:
a. the pin is removed from the closing loop
b. the compressed pilot parachute forces the four envelope flaps to open allowing the pilot parachute
to spring from the pack;
c. the pilot parachute extracts the bridle to it's full extent;
d. the bridle line under tension extracts the deployment bag from the main container;
e. suspension lines are extracted from the deployment bag elastic stowage bands as the bag is
pulled away from the pack;
f. the removal of the suspension lines from the locking stows allows the deployment bag to open
exposing the canopy to the airflow. Full stretch of the suspension lines is achieved;
g. the paratrooper, still falling faster than the main pilot parachute causes the canopy to be
extracted from the deployment bag. This is known as snatch force;
h. as the canopy develops from the centre cell outwards it slows the paratroopers rate of descent.
This is known as opening shock. During the development of the canopy the slider is forced down
the suspension lines;
i. the pilot parachute and deployment bag, no longer required, remain on the upper surface of
the fully deployed canopy.
Description - Telesis Reserve Parachute Component Parts
The Airforce 260 reserve parachute consists of:
a. Pilot parachute, bridle and free bag. The pilot parachute consists of a spiral spring covered
with a combination of nylon cloth and mesh fabric. A nylon free bag is attached to the pilot parachute
by a bridle line which is wider than the main parachute bridle and has two bridle assistor pockets,
which inflate to aid in deployment. As the name implies the free bag is not attached to the reserve
canopy and falls free on deployment. This is designed to prevent a horseshoe malfunction.
b. Canopy, suspension lines and slider. The reserve canopy is simular in construction to the main.
The canopy is constructed with more reinforcing and has seven dual openings on the leading edge
of the canopy.
c. Riser assembly. The reserve risers are part of the harness assembly. There are no front riser
handles on the reserve risers.
Deployment Sequence Telesis Reserve Parachute
As the paratrooper pulls the reserve ripcord handle the following actions will occur in sequence
in a period of 2-3 seconds:
a. the reserve pin is removed from the closing loop. The compressed pilot parachute forces the
four envelope flaps open allowing the pilot parachute to spring from the pack tray;
b. the pilot parachute extracts the bridle to its full extent;
c. the bridle extracts the free bag. The suspension lines are extracted from the stowage pocket
on the free bag;
d. the mouth locking stows are released, opening the free bag
e. the reserve canopy develops and the freebag and pilot parachute fall away.
Note: Tabulated Data is on the 270 sq ft main, however we also do have 300sq ft mains in the system
Free Fall Configuration
The characteristics of the Telesis parachute in the free fall configuration are:
a. Aspect Ratio: 2.7:1
b. Load Capacity: 114 kg (250 lbs)
c. Weight: 14 kg (31 lbs) including AAD and parachute bag
d. Packed Life: 6 months
The main canopy specifications for the Telesis parachute are:
a. Design: airfoil
b. Span: 7 m
c. Cord: 3 m
d. Area: 21 m2 (270 sq/ft)
e. Cells: 9
f. Material: ripstop nylon
g. Slider: 66cm x 77cm
3. Suspension and Steering Lines.
The suspension line specifications for the PA 270 are:
(1) 40 lines cascade to form 20 lines
(2) 8 steering lines cascade to form 2 lines
b. Material: braided polyester
(1) Suspension Lines: 239 kg BS Dacron (525 lb BS)
(2) Steering Lines: 318 kg BS Dacron (700 lb BS)
The riser specifications for the main parachute are:
a. Number: 4
b. Material: type VII1 nylon webbing, 1636 kg BS
c. Length: 52 cm
d. Hardware: 4 x number 5 connector (Rapide) links,
5. Harness and Pack Tray.
The harness and pack tray specifications for the Telesis are
a. Type: split saddle
(1) Type VII nylon webbing, 2495 kg BS
(2) Cordura 11 oz/ yd
c. Adjustment: 5 adjustment points
The ripcord specifications for the Telesis are:
a. Main: 122 cm stainless steel braided cable with a swaged ball
b. Reserve: 55 cm stainless steel braided cable with a swaged ball
7. Deployment Bag.
The deployment bag specification for the Telesis are:
a. Main: 38 cm x 16 cm nylon duck
b. Reserve: 33 cm x 25 cm nylon duck with a 4.4 m long, 5 cm wide bridle line with two bridle
c. Bridle Line Main: 165 cm long, 4.5 cm wide square weave nylon