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Strong Enterprises Owner’s Manual. Para-Cushion model 306 Squadron Seat

11236 Satellite Blvd. Orlando, FL 32837 Tel: (407) 859-9317 Fax: (407) 850-6978

www.strongparachutes.com    [email protected]

7. Repair Guidelines

The following repair specification is set forth to aid riggers in the maintenance of Strong Parachutes. 
Repairs must only be made by appropriately rated FAA certificated parachute riggers.

CANOPY

TYPE OF REPAIR   

         LIMITATIONS

Re-stitching:   

 

 

No limit as to length or number.

Patch, single side:   

 

Size limit: 50% of panel area.

 

 

 

 

 

Limit of 3 per panel, 15 per canopy.

Panel replacement:   

 

Limit 9 per canopy

Radial Seams: 

 

 

 

Size limit: 12” - no more than 4 per canopy.

Lateral bands:  

 

 

Damage: size limit 2”

 Upper 

   Limit: 

per 

canopy

 Lower 

   Limit: 

per 

canopy

“V” tabs: 

 

 

 

No limit

Suspension Lines:   

 

No Limit

PILOT CHUTE

Use re-stitching or single side patch. Anything more, replace.

PILOT CHUTE CAP

 

Replace when Spandura fabric becomes worn.

LOCKING LOOP

Replace one time per year. (See Chapter 8). Length for 306 Squadron Seat closing loop is 10 inches,  
with a tolerance of  +0,-1/4 inch. Change if out of tolerance or worn.

BRIDLES                                                                                                                                                                                   

 

Damaged bridles should be replaced

CONTAINER

 

Standard military single side patches or replacement of the damaged area is authorized.

HARNESS

Any portion of the harness which is structurally damaged should be replaced in a manner to duplicate 
the original equipment

.

RIPCORDS

 

Damaged ripcords should be replaced.

DATA CARD

Data cards should not be discarded or replaced. When filled, they must be attached to the new 
card so a complete log of packing, repairs, and alterations is recorded. This is the history of the 
parachute. 

Note!

Darning and ripstop tape are not authorized for certified 

canopies as they may weaken the fabric. Single side patches 

are recommended for even small damaged areas.

Summary of Contents for Para-Cushion 306 Squadron Seat

Page 1: ... Para Cushion Model 306 Squadron Seat Part number 121108 with Diaper equipped 26ft Mid Lite Canopy Part number 420550 with Appendix A Packing the C 9 Military Canopy Revision F August 2013 Warbirds Manual P N 510079 Price 25 00 US Patent 3 908 937 ...

Page 2: ...erable risk of personal injury or death If you are not willing to assume that risk please return the parachute to the dealer where it was purchased for a full refund DISCLAIMER There are NO WARRANTIES which extend beyond the description of the parachutes in this manual and neither the seller nor any agent of the seller has made any affirmation of fact or promise with respect to the parachutes exce...

Page 3: ...to get out of the aircraft 7 1 13 How to open your Parachute 7 1 14 How to Steer 8 1 15 Landing and Recovery 8 1 16 Reporting of Equipment Improvement Recommendations 8 2 306 Squadron Product Description 9 2 1 Parts List 10 3 Required Packing Tools 11 4 Prepare Parachute for Packing 12 5 Pre Packing Inspection 12 6 Packing the 306 Squadron Seat 13 6 1 Folding the Parachute 13 6 2 Securing the Diap...

Page 4: ...hute at up to 150 knots IAS 1 4 Parachute Repack Interval Your Para Cushion 306 Squadron is is designed for a 365 day repack cycle Your countries laws may dictate a stricter schedule check your local regulations The Para Cushion 306 Squadron must be packed by an FAA certificated parachute rigger or foreign equivalent with an appropriate rating or returned to Strong Enterprises for inspection and r...

Page 5: ...ng inspection and repack FAA FAR 65 129 requires that no parachute be packed maintained or altered in any manner that deviates from procedures approved by the manufacturer The parachute should be left unopened inside its protective container until ready for use When you take your Para Cushion to your rigger for servicing they will be glad to allow you to pull the ripcord yourself give you a functi...

Page 6: ...he straps loosen the three adjustment points and slip your arms through the main lift web the vertical straps in front much like putting on a jacket Next reach between your legs pick up each leg strap untwist them if necessary and snap them in place on each side of the lower portion of the main lift webs Lean forward pull the leg straps below your hips and tighten them snugly yet comfortably aroun...

Page 7: ...achute begins to open while you re still aboard the wind may inflate it dragging you out or into the tail Also it may entangle with the aircraft There are no other rules the aircraft may be tumbling spinning or inverted Simply get yourself out any way you can Clear the aircraft and pull your ripcord immediately There is enough oxygen to breath and you ll be descending into denser air 1 13 How to O...

Page 8: ...after touchdown you may be dragged Pull in the lines closest to the ground to spill some air and then run around the canopy to collapse it In most cases you can maneuver the canopy as necessary to avoid as many obstacles as possible In the event of a tree or power line landing keep your feet together so you don t straddle a limb or wire Be prepared to slide through and hit the ground afterwards Yo...

Page 9: ... for the bucket style seat pan used in Warbirds such as the SNJ T 6 T 34 T 28 P 51 and many others The shape of the Squadron Seat pack and cushion combination are designed to fit squarely into the bucket style seat providing a large stable base on which the pilot can fly in comfort The harness is adjustable and should be properly adjusted according to section 1 10 prior to board ing the aircraft T...

Page 10: ...Fax 407 850 6978 www strongparachutes com sales strongparachutes com Harness and Container Assembly 121103 2 1 Parts List 26 foot Mid Lite 420550 Ripcord Assembly 631334 Pilot Chute Lil Grabber 790121 Locking Loop 861044 gold with Mid Lite 861045 green with C 9 Cap for Pilot Chute 799030 Carrying Bag 816006 Owner s Manual 510079 ...

Page 11: ...6978 www strongparachutes com sales strongparachutes com A D H 3 Required Packing Tools A Shot Bags at least 4 B Line Separator 1 each C Pilot Chute Locking Rod 1 each D Pilot Chute Locking Strap 1 each E T handles 2 each F Pull Up Cords 4 each G Tension Plate 1 each H Tension Hook 1 each I Locking Pin 2 each J Fid 1 each A G H I J F D E B C ...

Page 12: ...Pre Packing Inspection Always perform the following inspection prior to packing Inspect the entire assembly for any damage Inspect pilot chute and bridle Check that the Larks head knot on the pilot chute is secure Inspect Apex area Check over entire canopy for damage Inspect lines for damage Check line sequence and control lines Perform a complete suspension line continuity check Check the barrels...

Page 13: ...Lay harness container and canopy down on the table with the wearer side facing down Inspect entire assembly for completeness and any damage Flake canopy and pleat in the normal manner with an equal number of gores to each side Diaper should be between table and canopy 6 1 2 Fold skirt up 90º on each side parallel to the radial seams 6 1 Folding the Parachute 6 Packing the 306 Emergency Parachute S...

Page 14: ...07 859 9317 Fax 407 850 6978 www strongparachutes com sales strongparachutes com 6 1 3 Fold the canopy into thirds by bringing the sides up to the middle First right side and then left 6 1 4 Long fold the canopy into fifths long and tight bringing the right side just past center then folding the left side over center ...

Page 15: ... 9317 Fax 407 850 6978 www strongparachutes com sales strongparachutes com 6 2 Securing the Diaper 6 2 1 Spread diaper out flat Bring lines on the LEFT HAND GROUP ONLY loosely up over skirt WARNING DO NOT tuck the lines inside the folded canopy Tucking the lines in the canopy can cause serious burns to the canopy and lines ...

Page 16: ...h 1 1 2 inch bight of line from left line group WARNING Put only the left line group of lines inside the diaper Otherwise the purpose of the diaper will be defeated allowing it to release before all lines are unstowed 6 2 3 Continue to secure the diaper by bringing remaining rubber bands through their respective grommets and locking in place with 1 1 2 inch bights of line from left line group Note...

Page 17: ...ngparachutes com sales strongparachutes com 6 3 Risers Placement 6 3 1 Route risers down backpad and mate the Velcro This will result in the connector links being approximately four inches inside the container 6 3 2 Right line group will be 14 16 longer than left line group Pull excess line to the container end keeping lines even from canopy to container ...

Page 18: ...r about 16 from the left link Leave slack in right line group toward riser not toward canopy Lines toward the canopy should be even Stow first bight of line in third rubber band from wearer s rear left corner of container Note All line stows should be 1 1 2 inch bights 6 5 Excess or Half line stow 6 5 1 Take excess line from right riser pass it under lines from left line group and stow in first tw...

Page 19: ...tes com sales strongparachutes com 6 5 2 Rear bight of excess line may be doubled back on itself before being placed in the rubber band to accommodate for the extra length 6 6 First Layer of Lines 6 6 1 Now that line groups are even continue stowing lines alternating from front to back skipping a rubber band between each stow Work from right to left of container ...

Page 20: ...6 7 Second Layer of Lines 6 7 1 Make the stows of the second layer alternate from wearer s rear to front using the rubber bands that were previously skipped To make the second layer of lines continue stowing lines alternating from front to rear this time working from right to left 6 7 2 Place a pull up cord in both temporary locking loops Loops are located under line stows near center of container...

Page 21: ...strongparachutes com 6 8 Skirt Placement 6 8 1 Slide the skirt into front left corner of container Note Remove shot bags as canopy is placed into the container 6 8 2 Fill the left side by making an S fold starting at the top of diaper folding down towards and filling front left corner Now insert your two T handles through the two grommets on the bottom of the container S fold ...

Page 22: ...m mets and secure with temporary pins Insert T handles through two outer grommets on left flap 6 8 4 Fold canopy 90 and route canopy across bottom of pack above line stows 6 8 5 Do not stack the folds on top of each other on the right side as is done on the left side Turn the folds 90 and stack them on their side towards the center of the container filling the corners as you go Spread apex out fla...

Page 23: ... the pilot chute upright on the locking strap While compressing pilot chute neatly and symmetrically tuck the pilot chute s canopy cloth in between the coils of the spring Continue until the pilot chute is fully compressed and lock with locking strap Note Locking rod and strap should be at 90 angle to closing loops 6 9 3 S fold the pilot chute bridle and tuck it under the right flap to keep it in ...

Page 24: ...rachutes com sales strongparachutes com 6 9 4 Holding pilot chute in position with one hand and with other hand under the pack holding it closed turn pack over 6 9 5 Bring pull up cords through container by carefully removing the T handles from pack Work from the rear of pack by pulling closing loop through container and grommet and locking with ripcord pin ...

Page 25: ...cords by pulling away from ripcord pin Flip container over and remove the pilot chute locking rod strap and the two temporary locking pins Use a fid to tuck excess pilot chute fabric under the rim of cap Dress pack and seal pin furthest form the ripcord housing Complete data card and your rigger s logbook Be sure ripcord handle is secure in its pocket Zip cushion closed and count your tools WARNIN...

Page 26: ...HUTE Use re stitching or single side patch Anything more replace PILOT CHUTE CAP Replace when Spandura fabric becomes worn LOCKING LOOP Replace one time per year See Chapter 8 Length for 306 Squadron Seat closing loop is 10 inches with a tolerance of 0 1 4 inch Change if out of tolerance or worn BRIDLES Damaged bridles should be replaced CONTAINER Standard military single side patches or replaceme...

Page 27: ...y snipping the hand tacking Install a new loop by hand tacking from the bottom side up then back down and up on the other side then down again on the opposite edge Followed by a good surgeon s knot Position the new loop so that the Type 4 material is bewtween loop andpilot chute Note Locking Loop must be placed as close to dead center as possible Being off even a couple of de grees may cause the P...

Page 28: ...where to place the opposite hole 8 4 Once the holes are cut install the new cap over the loop by aligning the loop ends with the holes in the Spandura cap Pull the loop through the holes with your hand tack needle 8 5 Hand tack new cap in place at 90º angles to the loops Do this by going through pilot chute top and through Spandura as close to binding tape as possible Tie off with surgeon s knot N...

Page 29: ...ter the rest of the lines are pulled tight 9 2 Figure 8 the line through the grommet and secure with an overhand knot If the steering line is thin as in the Mid Lite or Lite a second figure 8 may be necessary to fill up the grommet hole 9 3 Mate the Velcro to secure the toggle to the riser 9 4 For original Para Cushions old style that utilize a metal ring instead of cloth toggles route the steerin...

Page 30: ...hite mark on the control at the connector link Form loop pass through lines 1 2 and or 23 24 Commence chain braid Draw each braid up as tight as possible Form 5 to 6 braids Secure last braid loop to loop handle with rigger s seal thread 4 lbs When packing the Para Cushion Model 304 Seat with the 28 C 9 Canopy pleat and long fold canopy in the normal manner as directed in Section 6 1 page 13 of thi...

Page 31: ...parachutes com Continue packing as directed starting at step 6 7 2 on page 20 Stow risers under their cover flaps and mate Velcro Begin stowing lines across the pack tray using every other rubber band allowing two T Handles to protrude up through center of the stows Once you reach the other side continue back across top of previous stows using rubber bands skipped on the first pass ...

Page 32: ...2 Strong Enterprises Owner s Manual Para Cushion model 306 Squadron Seat 11236 Satellite Blvd Orlando FL 32837 Tel 407 859 9317 Fax 407 850 6978 www strongparachutes com sales strongparachutes com Notes ...

Page 33: ...3 Strong Enterprises Owner s Manual Para Cushion model 306 Squadron Seat 11236 Satellite Blvd Orlando FL 32837 Tel 407 859 9317 Fax 407 850 6978 www strongparachutes com sales strongparachutes com Notes ...

Page 34: ...4 Strong Enterprises Owner s Manual Para Cushion model 306 Squadron Seat 11236 Satellite Blvd Orlando FL 32837 Tel 407 859 9317 Fax 407 850 6978 www strongparachutes com sales strongparachutes com Notes ...

Page 35: ......

Page 36: ... canopy once you have landed in case of high winds water or tree landing Quick Ejector Snaps PN 099113 3 each or PN 099112 2 each Military Style hardware replaces B 12 snaps Allows you to lift the gate and eject the hardware instead of reaching under and lifting Custom Monogram PN 099105 We can monogram your name N number Company Name Nose Art or anything you can imagine Space provided 6 X 2 5 Lum...

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