Optima rebreather - fully sick or a total joke?

Pelagian · 6th June 2005, 18:36

Not to mention he would have been much more dehyrdrated on OC.

I don't think this event had anything to do with the Optima, it was just unfortunate timing with the first units just 2 months away.

Cheers

Seb

decoweenie · 6th June 2005, 18:48

Quote: (Originally Posted by Pelagian)

It's profile in the water is surprisingly low. Some where between My meg(which is lower than the Sport kiss with my mods)

The SK is about 4" thick.

What is the diameter of the Meg canister ?

If it is more than 4" (which I suspect it would be without having the Meg in person), than I would like to see how it will be flatter with your mod.

Scott Carnahan · 6th June 2005, 22:35

I will try to get together some photos etc that we have of the unit today and put them up. Seb has it pretty well cracked as far as the unit is today. We have two of them down here if anyone happens to be around Southern Mexico come by the store and take a look we usually have one sitting around but not this weekend as we are going to be diving the units over in Cozumel is the current plan.

If anyone has specific questions I will do what I can to answer them about the unit. The units we have are the first ones and they are not production line units so as well I can not speak for real production units or what they are going to look like etc. Lamar and crew will be down here in July with some updates to the lots of stuff. Again anyone in Mexico the second week of July we are going to have a nighttime sit down with Lamar and people can ask and get the info from the horses mouth.

Scott

Pelagian · 9th June 2005, 01:20

Quote: (Originally Posted by decoweenie)

The SK is about 4" thick.

What is the diameter of the Meg canister ?

If it is more than 4" (which I suspect it would be without having the Meg in person), than I would like to see how it will be flatter with your mod.

Actually the SK is 5" thick but the Classic KISS is what I was referring to, sorry for the mix up.

Using some very rough calcualtions the Surface area at the leading of the Classic(with horizontal trim), with an 8 inch housing and assumming either 20 or 13 cft aly tanks, is approximately 314 square inches.

My Meg with the same tanks and a 7 inch housing is 267 square inches

My mods have rotated the tank brackets from the stock positions on the meg can 2.5 inches closer to my back, lying flush with my wings.

This coupled with flipping the tanks upright and sliding them down towards the base of the can, so I can reach the valves, has decreased the units obliqueness to the water and increased it's streamlining.

Adding the Mark Meadows backplate with a direct camstrap mount to the can, shaves another 1/4 -1/2 inch of my overall thickness vs. a single tanks adapter.

These are all easy mods that could be applied to the Classic, each one shaves just a little, but the overall effect is a very close fit with a unit that pierces the water a little easier, certianley enough to make a big difference in any current.

Cheers

Seb

decoweenie · 9th June 2005, 07:04

Quote: (Originally Posted by Pelagian)

Actually the SK is 5" thick but the Classic KISS is what I was referring to, sorry for the mix up.

You are right, it is 5". I said "about" since I didn't measure it. The context is now changed since they are totally different units.

Regardless, the CK does not have the thin profile as the SK but to compare the cross-profile of a BMCL unit (CK) to a OTSCL unit (Meg), you will also need to take into account of the CL in the front.

LukeN · 27th July 2005, 09:35

What was the WOB like on the Optima in comparison to other units?

Thanks Luke

CCRDVR · 9th February 2006, 15:47

I earned my CCR certification diving one of the preproduction Optima's. Which I found very easy to use. The only problem I had with it was the lack of a weight pouch on the scrubber canister. I had to add five pounds to get good trim. Other than that I liked it so much that I bought one. So I bought one! I just received one of the production O2ptima's a couple days ago. It looks to be a nice and tight unit. As soon as the weather warms up a bit , I'll give it a go.

Deep Thought · 9th February 2006, 16:21

I'm heading down to High Springs area and Lake City where I intend to log some more time in the caves ccr'in with my Optima. John Jones in Lake City is the guy to get in touch with in N. Florida if you are looking for Optima training, cave diving, etc...

When I return I will be at some Midwest dive shows to talk Optima ccr's, and will have my Optima for display.

The first show is a benefit for a diver who has Duschenes Muscular Dystrophy, where John Chatterton will be a guest speaker. February 18th Underwater World Aquarium at Mall Of America, Bloomington MN. This is a fund raiser for the young man to assist him with an open water dive.

February 24-26 is a the Our World Underwater Show in Chicago Illinois will have Optima at the Dive Rite booth, big consumer travel and equipment show.

March 9 - 20th - sorry gone Truk Diving! hah if your not there

couldn't find a Rising Sun -how about a Moon?

March 24-25 Ghost Ships Festival, a shipwreck divers dream show in Milwaukee, WI. I'll have the Optima and several other ccr's

Good Diving

Deep Thought

Jordan · 9th February 2006, 17:45

Quote: (Originally Posted by CCRDVR)

I earned my CCR certification diving one of the preproduction Optima's. Which I found very easy to use. The only problem I had with it was the lack of a weight pouch on the scrubber canister. I had to add five pounds to get good trim. Other than that I liked it so much that I bought one. So I bought one! I just received one of the production O2ptima's a couple days ago. It looks to be a nice and tight unit. As soon as the weather warms up a bit , I'll give it a go.

Dive Rite does have weights just for this purpose. 6 pounders are on the shelf, but if you want a 5 pounder, a custom weight could be made. The weight is threaded on the canister strap. It ends up being inside the units cover and works out just right.

babar · 9th February 2006, 21:27

Quote: (Originally Posted by Deep Thought)

The first show is a benefit for a diver who has Duschenes Muscular Dystrophy, where John Chatterton will be a guest speaker. February 18th Underwater World Aquarium at Mall Of America, Bloomington MN. This is a fund raiser for the young man to assist him with an open water dive.

Good Diving

Deep Thought

Is this the guy on scubaboard? There were some very interesting talks about how to dive him. Thinking somewhere between an Rebreather and a vent with the unit in the dry suit. Any word?

6th June 2005, 18:36	#11 (permalink)
Pelagian Multi-Circuit Meg Monkey! Current Rebreather/s: Megalodon Other Rebreather/s: Inspiration Classic Inspiration Vision Evolution Sport Kiss Optima Join Date: Feb 2005 Location: Leeds, England Posts: 275	Lamar Not to mention he would have been much more dehyrdrated on OC. I don't think this event had anything to do with the Optima, it was just unfortunate timing with the first units just 2 months away. Cheers Seb __________________ 'Because... I was Inverted!'
(Offline)

6th June 2005, 18:48	#12 (permalink)
decoweenie Crash Test Dummy Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: Feb 2005 Location: Cairo Posts: 5,510	Quote: (Originally Posted by Pelagian) It's profile in the water is surprisingly low. Some where between My meg(which is lower than the Sport kiss with my mods) The SK is about 4" thick. What is the diameter of the Meg canister ? If it is more than 4" (which I suspect it would be without having the Meg in person), than I would like to see how it will be flatter with your mod.
(Offline)

6th June 2005, 22:35	#13 (permalink)
Scott Carnahan New Member Current Rebreather/s: Megalodon Optima Dolphin Ray Other SCR Other Rebreather/s: Dolphin Ray Other SCR Join Date: Apr 2005 Location: QRoo Mexico Posts: 18	I will try to get together some photos etc that we have of the unit today and put them up. Seb has it pretty well cracked as far as the unit is today. We have two of them down here if anyone happens to be around Southern Mexico come by the store and take a look we usually have one sitting around but not this weekend as we are going to be diving the units over in Cozumel is the current plan. If anyone has specific questions I will do what I can to answer them about the unit. The units we have are the first ones and they are not production line units so as well I can not speak for real production units or what they are going to look like etc. Lamar and crew will be down here in July with some updates to the lots of stuff. Again anyone in Mexico the second week of July we are going to have a nighttime sit down with Lamar and people can ask and get the info from the horses mouth. Scott
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9th June 2005, 01:20	#14 (permalink)
Pelagian Multi-Circuit Meg Monkey! Current Rebreather/s: Megalodon Other Rebreather/s: Inspiration Classic Inspiration Vision Evolution Sport Kiss Optima Join Date: Feb 2005 Location: Leeds, England Posts: 275	Streamlining Mods Quote: (Originally Posted by decoweenie) The SK is about 4" thick. What is the diameter of the Meg canister ? If it is more than 4" (which I suspect it would be without having the Meg in person), than I would like to see how it will be flatter with your mod. Actually the SK is 5" thick but the Classic KISS is what I was referring to, sorry for the mix up. Using some very rough calcualtions the Surface area at the leading of the Classic(with horizontal trim), with an 8 inch housing and assumming either 20 or 13 cft aly tanks, is approximately 314 square inches. My Meg with the same tanks and a 7 inch housing is 267 square inches My mods have rotated the tank brackets from the stock positions on the meg can 2.5 inches closer to my back, lying flush with my wings. This coupled with flipping the tanks upright and sliding them down towards the base of the can, so I can reach the valves, has decreased the units obliqueness to the water and increased it's streamlining. Adding the Mark Meadows backplate with a direct camstrap mount to the can, shaves another 1/4 -1/2 inch of my overall thickness vs. a single tanks adapter. These are all easy mods that could be applied to the Classic, each one shaves just a little, but the overall effect is a very close fit with a unit that pierces the water a little easier, certianley enough to make a big difference in any current. Cheers Seb __________________ 'Because... I was Inverted!'
(Offline)

9th June 2005, 07:04	#15 (permalink)
decoweenie Crash Test Dummy Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: Feb 2005 Location: Cairo Posts: 5,510	Quote: (Originally Posted by Pelagian) Actually the SK is 5" thick but the Classic KISS is what I was referring to, sorry for the mix up. You are right, it is 5". I said "about" since I didn't measure it. The context is now changed since they are totally different units. Regardless, the CK does not have the thin profile as the SK but to compare the cross-profile of a BMCL unit (CK) to a OTSCL unit (Meg), you will also need to take into account of the CL in the front.
(Offline)

27th July 2005, 09:35	#16 (permalink)
LukeN New Member Current Rebreather/s: Optima Other Rebreather/s: Not Bought Yet Prism Topaz Join Date: Jun 2005 Location: Australia,West Aus Posts: 82	What was the WOB like on the Optima in comparison to other units? Thanks Luke
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9th February 2006, 15:47	#17 (permalink)
CCRDVR New Member Current Rebreather/s: Optima Dolphin Other Rebreather/s: Dolphin Join Date: Feb 2006 Location: Annapolis, Maryland Posts: 81	Re: Optima rebreather - fully sick or a total joke? I earned my CCR certification diving one of the preproduction Optima's. Which I found very easy to use. The only problem I had with it was the lack of a weight pouch on the scrubber canister. I had to add five pounds to get good trim. Other than that I liked it so much that I bought one. So I bought one! I just received one of the production O2ptima's a couple days ago. It looks to be a nice and tight unit. As soon as the weather warms up a bit , I'll give it a go.
(Offline)

9th February 2006, 16:21	#18 (permalink)
Deep Thought Custom Title Allowed! Current Rebreather/s: Inspiration Vision Classic Kiss Other Rebreather/s: Inspiration Classic Inspiration Vision Evolution Megalodon Sport Kiss Classic Kiss Optima Join Date: Apr 2005 Location: Great Lakes Posts: 190	Re: Optima rebreather - fully sick or a total joke? I'm heading down to High Springs area and Lake City where I intend to log some more time in the caves ccr'in with my Optima. John Jones in Lake City is the guy to get in touch with in N. Florida if you are looking for Optima training, cave diving, etc... When I return I will be at some Midwest dive shows to talk Optima ccr's, and will have my Optima for display. The first show is a benefit for a diver who has Duschenes Muscular Dystrophy, where John Chatterton will be a guest speaker. February 18th Underwater World Aquarium at Mall Of America, Bloomington MN. This is a fund raiser for the young man to assist him with an open water dive. February 24-26 is a the Our World Underwater Show in Chicago Illinois will have Optima at the Dive Rite booth, big consumer travel and equipment show. March 9 - 20th - sorry gone Truk Diving! hah if your not there couldn't find a Rising Sun -how about a Moon? March 24-25 Ghost Ships Festival, a shipwreck divers dream show in Milwaukee, WI. I'll have the Optima and several other ccr's Good Diving Deep Thought __________________ Creature Of Habits; Mostly Bad www.gudcscuba.com
(Offline)

9th February 2006, 17:45	#19 (permalink)
Jordan ebt called me stroppy! Current Rebreather/s: Optima Other Rebreather/s: Join Date: May 2005 Location: North Florida Posts: 225	Re: Optima rebreather - fully sick or a total joke? Quote: (Originally Posted by CCRDVR) I earned my CCR certification diving one of the preproduction Optima's. Which I found very easy to use. The only problem I had with it was the lack of a weight pouch on the scrubber canister. I had to add five pounds to get good trim. Other than that I liked it so much that I bought one. So I bought one! I just received one of the production O2ptima's a couple days ago. It looks to be a nice and tight unit. As soon as the weather warms up a bit , I'll give it a go. Dive Rite does have weights just for this purpose. 6 pounders are on the shelf, but if you want a 5 pounder, a custom weight could be made. The weight is threaded on the canister strap. It ends up being inside the units cover and works out just right. __________________ Is it clear? No. Well, let's go anyways. "Those who would sacrifice a little freedom for a little order, will lose both, and deserve neither." Thomas Jefferson Last edited by Jordan : 9th February 2006 at 19:26.
(Online)

9th February 2006, 21:27	#20 (permalink)
babar Curmudgeon Current Rebreather/s: Evolution Sport Kiss Other CCR Other Rebreather/s: Inspiration Classic Inspiration Vision Evolution Other CCR Join Date: Apr 2005 Location: Southern California Posts: 421	Re: Optima rebreather - fully sick or a total joke? Quote: (Originally Posted by Deep Thought) The first show is a benefit for a diver who has Duschenes Muscular Dystrophy, where John Chatterton will be a guest speaker. February 18th Underwater World Aquarium at Mall Of America, Bloomington MN. This is a fund raiser for the young man to assist him with an open water dive. Good Diving Deep Thought Is this the guy on scubaboard? There were some very interesting talks about how to dive him. Thinking somewhere between an Rebreather and a vent with the unit in the dry suit. Any word? __________________ Babar Evolution Plus Sport kiss
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