Showing posts with label Enriched Air. Show all posts
Showing posts with label Enriched Air. Show all posts

Tuesday, 9 November 2010

Can an SMB be to BIG?

 Sometimes you have to ask yourself how big do you need have your SMB(Surface Marker Buoy), well I've recently managed to get my hands on a 3meter (10 feet in old money) red smb with it's own cylinder that is used to inflate it.

Well as we was at holborough on sunday it just had to be done, we we sat doing a safety stop I passed the camera to George and out came the SMB, some people have called it a lift bag but I know it's an SMB.


I opened it up and slowly open the valve to allow som air
into the SMB, making sure I was holding the reel in the other hand and with my finger on the release button the SMB rocketed to the surface. We slowly surfaced to be greeted with all the comments form people about the size of the SMB.

However 3 meters is just right when you are doing dives at sea this gives the skipper a great view if where you are, and in large swells just makes it safer for yourself. The only problem is don't get caught up in it otherwise you'll  be rocketing to the surface with it and then you could be having a trip to the chamber in a helicopter.  

Wednesday, 3 November 2010

PADi Enriched Air Speciality Instructor Course


Well completed another PADi Speciality Instructor course last night.

After spending a couple of hours in a classs they are now letting me loose with students who want to complete there Nitrox course.
As for teaching the course it's a matter of letting the system do the work.
There is some nice formula's to remember how to do the maths because you're allowed a copy of them for the exam.
Right need some students to practice on who's brave enough then.

Wednesday, 8 September 2010

PADi Instructor Exam



The Instructor Exams are being held in Bristol and at Vobster on the 2nd and 3rd of October 2010. The group from Blue Ocean will be travelling down on the friday and staying over night ready for the start at 7.30am.




Day 1

Meet up and get a breifing from PADi staff regarding the flow of the weekend

Standards Exam50 questions from the PADi standards this is an open book exam lasting 1.5 hours

5 Core Exams

12 questions on each topic closed book

Physics
Physiology
Equipment
Recreatational Dive Planning
Enviorment


Knowledge Development Presentation:
OWD Manual, Knowledge Review Chapter 5 question 6 eRDP ML

Q. What is the minimum surface interval required between a dive to 18 meters for 40 minutes followed by a dive to 14meters for 60 minutes.

A. 28 minutes


Skills Circuit: Jon was the lucky man to pick the skills circuit that we had to do, we later found that it didn't matter which one he picked they was all the same.

1. Weight Belt removal at the surface
2. Alternative Air Source Use
3. Hoover
4. Mask removal and Replace


5. Controlled Emergency Swimming Ascent (CESA)


Teaching in confined water:

Skill: Neutral Buoyancy Underwater (Power Inflation) OWD Course Dive 2


Day2

Teching in Open Water

Skill 1: Alternate Air Source Stationary OWD Course Dive 2

Skill 2: Controlled Emergency Swimming Ascent (CESA) OWD Course Dive Flexible Skill


Rescue Assesment
These are two very long days and you feel drained after you have completed after the exams you get some time to prepare the classroom presentation, then a short break and into the pool for the skills circuit followed by your confined water presentation. Is required the following:

BREIFING
DEMOSTRATION
STUDENTS DEMO
DE-BREIFING



You are then free to leave and relax that evening ready for day two. If you have failed any exams from the Core Exams then you can resit them in the morning, I'm glad to say that I didn't need to resit any part of the IE.

Finally I was given this

Thursday, 2 September 2010

On with the PADi IDC


I've now started my PADi IDC (Instructor Development Course) with Blue Ocean Diving , the first 2 days are all classroom based, going through all the PADi standards and understanding how modules and courses are taught.

Tonight is the first pool session watching a presentation to get the feeling and know how it's done.

4th/5th September was a full on more classrom room presentations with my second classroom presentation of the "5 pieces of specialized equipment used for deep diving. After 6 -7 minutes of my talk I was told that I'd achieved the pass rate however I'd managed to get a 4.0, a 3.6 being the minimum pass mark.

The evening session (saturday) was to confined water presentation the first being partial mask flood, and fin pivot using low pressure inflator. Sunday's session was regulator recovery, the second skill was remove and replace scuba unit in water to deep to reach the surface.

Well another pool session last night thought I'd got away without doing another demo from the confined open water, wrong as Justin had man flew I ended up doing "Air from an alternate source I happy with the result I managed a 4.6 even that I got a couple of things wrong. So overall a great result and the marks are going in the right direction upwards.

The IDC is a massive learning curve and you have to be committed to it as you could get anything from any of the padi courses, meaning lots of reading, more revision and more practice.

Saturday, 28 August 2010

Passed the EFR Instructor Course

Managed to pass the EFR Instructor course, and it wasn't as bad as what I believed it was going to be. Top marks have got to go to Ryby (Blue Ocean Diving) for keeping it entertaining and fun as it's not the best subject in the world.

Wednesday, 18 August 2010

Eastbourne Airshow











After the Alunia dive we headed back into bay at Eastbourne to watch the Airshow as we had plans to dive the Oceana later that afternoon.

This was a great way to let the time go by while waiting for the next dive
All to soon we headed back out to sea for the second dive of the day the Oceana, unfortunately I didn't have enough gas for this dive so I sat it out along with George.

Saturday, 1 May 2010

TDI Gas Blender

Having started down the road of TEC diving I thought it would be better if I knew how to mix the DEVIL GAS myself. I booked myself both the TDI GAs Blender and Advanced Gas Blender courses at Wraysbury. The Gas blender was the first course which gets you mixing nitrox blends upto 40% however with the simple formula's you can mix anything upto 100%.

AS Wraysbury has a HASKEL pump they can get the most from there O2 cylinders which makes blending more fun. There approach is more old school none of these modern mixing panels that do it for you. There your the one watching and controlling the dials to blend the gas.

Well I mixed around 6 different mixes, and it amazes me still that giving it a simple shake can make all the difference, all of my mixes were within the 1% allowed.