Search found 236 matches
- Tue Oct 13, 2020 4:47 am
- Forum: Everything Else
- Topic: Profile to F21 lifting rudder
- Replies: 38
- Views: 22208
Re: Profile to F21 lifting rudder
So I needed to fill the gaps but at the same time ensure there was good bonding around these areas. I used a filler made from epoxy with the addition of glass microbaloons. This filler is strong and yet can be sanded relatively easily. I mixed two pots, the first at about 3:1 balloons to epoxy by vo...
- Tue Oct 13, 2020 4:38 am
- Forum: Everything Else
- Topic: Profile to F21 lifting rudder
- Replies: 38
- Views: 22208
Re: Profile to F21 lifting rudder
As I said in the earlier post, the leading edge (LE) of the blade, as well as to a lesser extent the trailing edge (TE) were profiled, this means that they were not flat, so there was no bonding over about 2-3cm at the LE and 0.5cm at the TE, there was also a ding in the blade at the TE.
- Tue Oct 13, 2020 4:34 am
- Forum: Everything Else
- Topic: Profile to F21 lifting rudder
- Replies: 38
- Views: 22208
Re: Profile to F21 lifting rudder
Thanks Dr. Today the epoxy is fully cured so I removed the backing cutoffs and trimmed the foam to the tip shape of the blade with a hacksaw and then rounded off the tip, as well as the square edge at the root. I used 180 paper but you have to be careful with the foam as you can deform it by being t...
- Mon Oct 12, 2020 3:12 pm
- Forum: Photographs and Drawings
- Topic: Freeway sailing in Southampton Water Sunday 11th October
- Replies: 2
- Views: 5776
Re: Freeway sailing in Southampton Water Sunday 11th October
Thanks, nice picture. I grew up sailing out of Portsmouth and later Southampton.
- Mon Oct 12, 2020 8:07 am
- Forum: Everything Else
- Topic: Profile to F21 lifting rudder
- Replies: 38
- Views: 22208
Re: Profile to F21 lifting rudder
First side is now cured to solid (not fully cured yet), so flipped over and laid down the second side. You can see that as the original plate's leading edge was profiled to a point I will have to fill and build up the leading edge in order to get the correct profile.
- Mon Oct 12, 2020 6:24 am
- Forum: Everything Else
- Topic: Profile to F21 lifting rudder
- Replies: 38
- Views: 22208
Re: Profile to F21 lifting rudder
First side of the profiled core epoxied to the plate, with an assortment of weights to hold it down while it cures. I am using the blank it was cut from over the core to maintain pressure over the curved surface.
- Mon Oct 12, 2020 6:18 am
- Forum: Photographs and Drawings
- Topic: Freedom Videos
- Replies: 23
- Views: 25699
Re: Freedom Videos
Hi, I posted some pics of my blade jib in another thread: https://www.freedomyachts.org/viewtopic.php?f=9&t=13185&p=52979&hilit=blade+jib#p52979 Also had a discussion on the mainsheet in the original thread that contained this video. Basically the spray cover makes it difficult to access the main sh...
- Fri Oct 09, 2020 10:30 am
- Forum: Everything Else
- Topic: Profile to F21 lifting rudder
- Replies: 38
- Views: 22208
Re: Profile to F21 lifting rudder
Blue foam cores arrived today.
So I stripped back the rudder plate to bare aluminium...
... and test fitted the cores. They fitted perfectly and will only need a small trim around the tip of the rudder which is angled and rounded.
So I stripped back the rudder plate to bare aluminium...
... and test fitted the cores. They fitted perfectly and will only need a small trim around the tip of the rudder which is angled and rounded.
- Thu Oct 08, 2020 7:26 am
- Forum: Everything Else
- Topic: Profile to F21 lifting rudder
- Replies: 38
- Views: 22208
Profile to F21 lifting rudder
I am not a fan of flat plate rudders, as they tend to stall out under high load, this separation of flow can cause loss of control. Although I have not had problems with my F21 to windward, I did have to fight the rudder a bit with the spinnaker up on my last sail of the season, so I have been think...
- Thu Oct 08, 2020 6:54 am
- Forum: Photographs and Drawings
- Topic: Freedom Videos
- Replies: 23
- Views: 25699
Re: Freedom Videos
Just saw this thread and thought I should post a link to a video here that I had included in another thread. That way we can keep all the video links together. For those that saw the "F21 first sail" thread, it's the same one.
Freedom 21 - Click here
Freedom 21 - Click here