In my opinion that is way to small.

The first one I bought was about the same size as the one you have and the difference it made to my drift was next to nothing...useless.!

I have a 5.5m ally boat and decided to spend the extra and purchased a big fat snapper anchor.

I got the silk 6 - 9m one and although it's on the large size for my boat, I recon it is just right.

Given that wind, current and boat design all have an effect on your drift, my boat in a 10 - 15kn breeze will drift at around 0.5kn with this anchor. 

yeah I thought so! Il go swap it. Thanks mate 

 Yeah I've gone over sized with mine too, works a treat. 

 A oversized drogue will slow you down further though placement is also important for the drift and safety if the swells up , most of us just throw it off the stern , some good info on this old thread . 

http://fishwrecked.com/forum/sea-anchor-position

 True, it's not all about the size but also how you use it 

Size does play a big part here though !

I had a very solid old crab net that I was not using, so I took the top (larger) ring and attached a sock made from spare shade cloth material and I use it tied to the centre port side. The solid metal ring keeps the mouth of the anchor open all the time which helps achieve maximum drag. Works a treat and cost next to nothing. 

i swapped it for a 1250mm x 1250mm that should do the job 

Hi Guys ,

             How far out do you let the sea anchor from the boat.?

       Cheers

 About a boat length to half again. Also tie a rope from the inside of the anchor so you can pull it inside out makes it easier to  pull in. If you tie of the bow it also makes it easier if the skipper drives up the rope so the decky doesnt have to walk up the bow.

Thanks Willlo

 Other thing to be aware of is that a good sea anchor is potentially a very use bit of safety gear.

Let's say you are too deep to anchor and you lose power.  Or you've somehow lost your anchor and lost power. To buy some time, you should put out your sea anchor from the bow.

Thatll slow your drift right down and keep the nose into it minimising chance of swamping.

Use the anchor rope as that will be longer than the distance between the wave crests. That means that the boat won't be caught by a rope pulling taut as the drogue and boat catch on either side of a wave. 

I was very surprised when I did the theory component of my skippers ticket that this wasn't mentioned. Also that these are not required equipment offshore for the above reasons.

 Also don't dick around get a big fat snapper one like the man said.

Agree with Willo. Definateley don't set it off the stern. If the swell is up you can take a wave over the stern. Not good. I set mine off the midship cleat, or bow would be good. Any sea anchor is better than none, want a drift around .03 t .05 knots ideal. Be safe. Do your research.Happy fishing...

 As posted by krusty he told me the first sea anchor I had was way to small and he liked to drift at .5 knots. I swapped for a larger sea anchor and was stil going at 1.5- 2 knots. Maybe it's still not big enough because the day was quite nice. Still caught 2 dhus tho so u guess it worked for me

 That's not to bad Curndog.

My drift will vary depending on the conditions, If there is say about a 10kn breeze one way and there is a current the other way then generally my drift is around 0.5kn (give or take)

If however the breeze and current are in the same direction your going to drift faster.

The size you have now will definitely be better than your original one. I am not exactly sure the diameter of my one but it probably isn't that much bigger than your new one.

I suggest trying it in different conditions, tie it off to different areas of the boat, even try having your enginbe turned one way or the other and just experiment a bit to see what suits best.

Well done on the Dhu's too  

 yeah il experiment a bit more and take note of the different conditions. You were 100% right about the first one I had would of been way to small