Model Boat Mayhem - Forum

Please login or register.

Login with username, password and session length.
Pages: [1]   Go Down

Author Topic: Inga type yacht sails  (Read 1014 times)

john44

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 1,321
  • member of the Potteries Model boat club
Inga type yacht sails
« on: May 19, 2018, 03:03:11 PM »

hi guys, I have built a Inga type yacht, what I would like to know is how many degrees do
You set the sails to when hauled in?


John
Logged

rnli12

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 626
  • Location: Cornwall
Re: Inga type yacht sails
« Reply #1 on: May 19, 2018, 04:56:03 PM »

Hi.
Depends on wind conditions but as an average no more than 5 - 10 deg from center line when hauled in.
Rich
Logged
Regards,

Rich

john44

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 1,321
  • member of the Potteries Model boat club
Re: Inga type yacht sails
« Reply #2 on: May 20, 2018, 06:15:04 PM »

Hi rich,
 I sailed the boat today had to set sails at 5 degrees due to the lack of wind.
I'm glad I motorised it to help me get onto different tacks, virtually dead calm.
It was the boat club sail boat regatta so we all had a slow mournings sail.
Enjoyed it though the boat sailed well when her sails caught the wind.
Thanks for the info.


Regards
John
Logged

tigertiger

  • Global Moderator
  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 6,860
  • Location: Kunming, city of eternal springtime, SW China.
Re: Inga type yacht sails
« Reply #3 on: May 21, 2018, 06:41:33 AM »

The sails need to be positioned differently for different points of sail, see below.
The 5-10 degrees mentioned is for when you have the sails pulled all the way in. The front sail should be about 5 degree from centre line, the rear sails should be about 10 degrees from centre line; they should not be parallel, you need the difference between angles.


This is all discussed more fully on this thread here http://www.modelboatmayhem.co.uk/forum/index.php/topic,60623.msg639191.html#msg639191
Hope this helps



Logged
The only stupid question is the one I didn't ask

SailorGreg

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 755
  • Money talks - it says goodbye
  • Location: Hayling Island, Hants
Re: Inga type yacht sails
« Reply #4 on: May 21, 2018, 09:00:53 AM »

I suspect tigertiger has got his angles the wrong way round. The jib (foresail) should be set at a greater angle to the centreline than the mainsail. So the main should be around 5 degrees and the jib 10-15 degrees to the centreline. Otherwise the slot between jib and mainsail is too closed for efficient sailing.


John, in really light winds you should increase the angles slightly. You don't have to adjust the sheets on the boat, just ease the transmitter stick a little to let the sails out a few degrees. You won't sail quite as close to the wind but you will keep the boat moving and be able to tack without resorting to the motor. As the wind strengthens you can sheet harder to develop full power.


As with most things, practice makes perfect. Enjoy your sailing!


Greg

tigertiger

  • Global Moderator
  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 6,860
  • Location: Kunming, city of eternal springtime, SW China.
Re: Inga type yacht sails
« Reply #5 on: May 21, 2018, 11:21:33 AM »

I suspect tigertiger has got his angles the wrong way round. The jib (foresail) should be set at a greater angle to the centreline than the mainsail. So the main should be around 5 degrees and the jib 10-15 degrees to the centreline.

 


Yes, you are absolutely right, my brain has been working backwards recently.
Logged
The only stupid question is the one I didn't ask

SailorGreg

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 755
  • Money talks - it says goodbye
  • Location: Hayling Island, Hants
Re: Inga type yacht sails
« Reply #6 on: May 21, 2018, 01:29:58 PM »

Better backwards than not at all!  :}

john44

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 1,321
  • member of the Potteries Model boat club
Re: Inga type yacht sails
« Reply #7 on: May 21, 2018, 02:15:35 PM »

Hi guys, thanks for the info. I have set the jib to 10deg and the main to 5deg,
Could you please tell me how many degrees for the aft sail, or is that set centre.


Regards
John



Logged

tigertiger

  • Global Moderator
  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 6,860
  • Location: Kunming, city of eternal springtime, SW China.
Re: Inga type yacht sails
« Reply #8 on: May 21, 2018, 04:07:25 PM »

OK so you have a two masted ketch, is that correct?


If so, I would set the aft sail to about 5 deg, main to about 10 deg, and jib to about 15 degree, when the sails are hauled all of the way in. Setting any sail dead centre would give no forward thrust, the sail would just push sideways.


The Inga looks like a lovely model. It would be great to see some pictures.
Logged
The only stupid question is the one I didn't ask

john44

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 1,321
  • member of the Potteries Model boat club
Re: Inga type yacht sails
« Reply #9 on: May 21, 2018, 05:34:28 PM »

Thanks for the information tiger,
the boat in question is a scratch build on a generic grp hull
It is a x between the Inga and the Atlantis.
Will try to post photos.


John
Logged

john44

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 1,321
  • member of the Potteries Model boat club
Re: Inga type yacht sails
« Reply #10 on: May 22, 2018, 08:20:51 PM »

Here is the boat in question
Logged

tigertiger

  • Global Moderator
  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 6,860
  • Location: Kunming, city of eternal springtime, SW China.
Re: Inga type yacht sails
« Reply #11 on: May 23, 2018, 04:02:42 AM »

Nice looking boat :-))
It might help with the sailing if you can take some of the slack out of your mizzen sail and topsail. This will give you more thrust when you are close hauled.
Logged
The only stupid question is the one I didn't ask
Pages: [1]   Go Up