Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 27-06-2011, 16:29   #16
Registered User

Join Date: Apr 2011
Location: Cooktown,Australia.(only to collect my mail)
Boat: Fastback 32 cat.
Posts: 158
Re: Sailing with a real parachute?

Quote:
Originally Posted by Pete7 View Post
So Ian, as the forums subject matter expert on these how did you rig it and in comparison to say a main and genoa did the parachute offer any real advantage like speed and easy of use.

Promise us you will take the camera next time your out with the chute up.

Pete
Hi Pete,I tied 12 of the 24 lines to the spinnaker halyard and 12 to a bridle from the bow.I don't really know what I'm doing yet,have only been for a very short test sail up the river.Because the chute is attached at 2 points 12 meters apart it pulls it into an oblong shape,this may reduce as the chute gets further from the boat.
Ian.
__________________

__________________
Ian R is offline   Reply With Quote
Old 27-06-2011, 17:58   #17
Registered User
 
ozskipper's Avatar

Join Date: Aug 2010
Location: NSW Australia
Boat: Traditional 30
Posts: 1,981
Re: Sailing with a real parachute?

Quote:
Originally Posted by IAN R View Post
Is anyone using a round parachute as in the december 2010 cruising helmsman article(Australia).Sailing Borneo,Sailing Philippines, Island Hopping, Yacht Charter,Boating Holiday, Diving,
I purchased a 28 foot chute for $150.Have only been for a short test up the river,seems ok.
YEh. i read that article too. Great idea for someone running in the trades.

One thing to remember though. A spinnaker has its loads going through turning blocks, two winches, the halyard, and the pole.

You would have to make sure that what ever point it was attached to is strong enough to take all the loads it can develop.
__________________

__________________
Cheers
Oz
...............
ozskipper is offline   Reply With Quote
Old 27-06-2011, 19:20   #18
Registered User

Join Date: Apr 2011
Location: Cooktown,Australia.(only to collect my mail)
Boat: Fastback 32 cat.
Posts: 158
Re: Sailing with a real parachute?

Quote:
Originally Posted by Pblais View Post
I would think you could have some problems in anything but a 100% down wind course. You could handle a little bit of heading up but it will load up the rudder quickly should the wind build. A spinnaker will provide a wider range of apparent wind sailing. With a 28 ft parachute you have quite a bit of sail area (615 sq ft) that would act a full bellied sail. While freighters are using chutes the relative mass of the ship and the area of sail is a lot lower ratio than a 28 ft parachute on a smaller sail boat. Winches on a 31 ft boat would not really be sized properly for a sail this large so control lines don't have a lot of room for adjustment. Leaving it up in a blow would be quite dangerous.

We have had posts about sails similar to a parasail that can be trimmed and would suppport a wider range of apparent wind and be stouter material. The chute will suffer UV damage quite quickly and rip easily.

In any case it clearly works and makes some nice pictures.
Hi Paul,
You can fly the parachute between 130 and 180 degrees and between wind speeds of 5 to 35 knots.According to the article linked to.
I imagine you can spill some wind as the breeze picks up by letting one side out.
Ian
__________________
Ian R is offline   Reply With Quote
Old 27-06-2011, 19:27   #19
Registered User

Join Date: Apr 2011
Location: Cooktown,Australia.(only to collect my mail)
Boat: Fastback 32 cat.
Posts: 158
Re: Sailing with a real parachute?

Quote:
Originally Posted by Unicorn Dreams View Post
I've thought about getting one for an emergency sail in the off chance of a dismasting. Might not get you into the harbor, but should get you close enough to get in under power..
It would be harder to launch without a mast,but worth a try.
Ian
__________________
Ian R is offline   Reply With Quote
Old 15-08-2011, 16:03   #20
Registered User

Join Date: Apr 2011
Location: Cooktown,Australia.(only to collect my mail)
Boat: Fastback 32 cat.
Posts: 158
Re: Sailing with a real parachute?

Has anyone considered using a parachute? See video on

SAILCHUTES HOME

Don't know about speed, but it looks like a more comfortable sail.

Cheers

JohnC
This was posted in the multihull forum by Wayward wind.
Ian
__________________
Ian R is offline   Reply With Quote
Old 15-08-2011, 16:07   #21
Registered User

Join Date: Apr 2011
Location: Cooktown,Australia.(only to collect my mail)
Boat: Fastback 32 cat.
Posts: 158
Re: Sailing with a real parachute?

SAILCHUTES HOME
This is the link for previous message.
__________________
Ian R is offline   Reply With Quote
Old 15-08-2011, 20:19   #22
Eternal Member
 
Chief Engineer's Avatar

Join Date: Aug 2006
Location: North of Baltimore
Boat: Ericson 27 & 18' Herrmann Catboat
Posts: 3,798
Re: Sailing with a Real Parachute ?

I always thought that wind doesn't push the boat.

It is the vacuum on the other side that pulls it.

Like an airplane wing

This could be the start of a vigorous discussion
__________________
Chief Engineer is offline   Reply With Quote
Old 15-08-2011, 21:23   #23
Registered User

Join Date: Dec 2009
Posts: 3,016
Images: 4
Quote:
Originally Posted by Chief Engineer
I always thought that wind doesn't push the boat.

It is the vacuum on the other side that pulls it.

Like an airplane wing

This could be the start of a vigorous discussion
Air is considered incompressible in the context of sailboats and even slow aircraft. So the volume is constant. So there is no vacuum whatsoever on sails on small aircraft wings.
__________________
daddle is offline   Reply With Quote
Old 22-10-2011, 20:11   #24
Registered User

Join Date: Apr 2011
Location: Cooktown,Australia.(only to collect my mail)
Boat: Fastback 32 cat.
Posts: 158
Re: Sailing with a Real Parachute ?

Finally got to use the chute,was doing 3 knots with chute only and 4knots with chute and genoa(light wind)
Attached Thumbnails
Click image for larger version

Name:	DSCF1209 (640x480).jpg
Views:	127
Size:	154.9 KB
ID:	32830   Click image for larger version

Name:	DSCF1210 (640x480).jpg
Views:	123
Size:	145.9 KB
ID:	32831  

__________________
Ian R is offline   Reply With Quote
Old 23-12-2011, 07:33   #25
Registered User
 
Moufflon's Avatar

Join Date: Oct 2010
Location: Thailand
Boat: Freewind 40'
Posts: 44
Send a message via Skype™ to Moufflon
Re: Sailing with a Real Parachute ?

Hi Ian
I have used my Parachute for years, but mine had 28 panels, I first tried it complete, like the photo on Pete7s reply...Not good so as I got it for next to nothing I cut it and removed a panel, now it flew from the mast head and two blocks I rigged aside the mast base, went great but flew better downwind / port than downwind starboard, so I switched the port/starbord lines on the deck, now the condition was reversed.... got home cut another panel out, tried it again, wow it was great.... Now, I am into Kite's, just getting some material to sew up a 15sq mt Kite, see if that will do better.

RGS///Peter
__________________
Moufflon is offline   Reply With Quote
Old 23-12-2011, 08:31   #26
Registered User

Join Date: Feb 2011
Location: South Florida
Boat: Gibson 50'
Posts: 295
Re: Sailing with a Real Parachute ?

I tried this on our Columbia using my 6 meter airfoil (WING) traction kite. It worked and I was able to eventually get to hull speed and steer using it.

However!!!!! I had to steer it the whole time manually and I think that I would want something a bit larger that didn't have me holding control toggles.
__________________
offline is offline   Reply With Quote
Old 23-12-2011, 10:44   #27
Registered User

Join Date: Jul 2011
Location: St. Petersburg, Florida
Boat: Leopard 39
Posts: 355
Re: Sailing with a Real Parachute ?

Parachutes have also been used successfully as sea anchors.
__________________
danielamartindm is offline   Reply With Quote
Old 23-12-2011, 11:34   #28
Marine Service Provider

Join Date: Aug 2010
Location: north carolina
Boat: command yachtsdouglas32
Posts: 3,113
Re: Sailing with a Real Parachute ?

Quote:
Originally Posted by daddle View Post
Air is considered incompressible in the context of sailboats and even slow aircraft. So the volume is constant. So there is no vacuum whatsoever on sails on small aircraft wings.
Not sure about this one as a wing has a configuation that Is longer on top and shorter on the bottom ie. the curve on the wing makes the air have farther to go on top than the bottom ,so when the air flows over the top it meets the air flowing over the bottom causing an upward motion due to the fact that the air over the top has farther to go than the air traveling over the (shorter) bottom portion of the wing there fore causing lift..referance Burnolies (?sp)law..or a high and low pressure meeting at the trailing edge of the wing causes the lift..over simplified I know but ...DVC
__________________
tropicalescape is offline   Reply With Quote
Old 08-01-2012, 14:47   #29
Registered User

Join Date: Apr 2011
Location: Cooktown,Australia.(only to collect my mail)
Boat: Fastback 32 cat.
Posts: 158
Re: Sailing with a Real Parachute ?

Quote:
Originally Posted by Moufflon View Post
Hi Ian
I have used my Parachute for years, but mine had 28 panels, I first tried it complete, like the photo on Pete7s reply...Not good so as I got it for next to nothing I cut it and removed a panel, now it flew from the mast head and two blocks I rigged aside the mast base, went great but flew better downwind / port than downwind starboard, so I switched the port/starbord lines on the deck, now the condition was reversed.... got home cut another panel out, tried it again, wow it was great.... Now, I am into Kite's, just getting some material to sew up a 15sq mt Kite, see if that will do better.

RGS///Peter
Hi Peter
Which 2 panels did you remove and why?
Ian
__________________
Ian R is offline   Reply With Quote
Old 10-01-2012, 02:15   #30
Registered User
 
Moufflon's Avatar

Join Date: Oct 2010
Location: Thailand
Boat: Freewind 40'
Posts: 44
Send a message via Skype™ to Moufflon
Re: Sailing with a Real Parachute ?

When I did parachuting as a youngster, we had 4 lift webs that went to a "D" ring, in turned tied to 7 lines, in the days of round 'chutes, we were taught to spill the air opposite to the direction you wanted to travel, like a bucket spilling water, so, I cut out the bottom two panels, it appeared to help my 'chute lift.
As, I can't find a similar product on the market, I am talking to several talented Kite designers, I have a supply of very strong, very light weight material, and a commercial seamstress to test if this could work, please everyone! do not jump in with loads of url's of french lady sailors or big cargo boats, if you have anything "original" I will be most interested.
__________________

__________________
Moufflon is offline   Reply With Quote
Reply

Tags
sailing

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Simply Sailing - Vancouver Sailing School chris_cruise Commercial Posts 0 15-07-2011 06:01
Beijing Sailing Center Beijingsailing Commercial Posts 2 15-07-2011 01:15



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 11:01.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.