JohnGraham

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Everything posted by JohnGraham

  1. JohnGraham
    I am NOT a gear expert (as you may have guessed if you glance at my profile) but there is a reason that so many people have a Javelin. Why do you think that so many people having it is a BAD thing?
  2. JohnGraham
    In the UK, also: I'm not sure this would be a "legal" requirement, but it is part of the ops manual.
  3. JohnGraham
    Chicken . Landing the backwards canopy is just a reverse Blind Man. Easy . yeah, I guess with your whopping 312 jumps and the nukin Spectre 190, it would be easy for you. Heh! What type/size of canopy is pictured hooked up backwards, anyways?
  4. JohnGraham
    Have you asked any of the instructors on your DZ, or your CCI/DZO? I know there's a whole batch that the instructors at my DZ use for showing students what different mals look like, as well as what a good canopy looks like.
  5. JohnGraham
    I like having mine on the back of my hand - happened to come in handy when I had a hard pull - I could keep tugging (I had planed to pull high on that jump anyway) and keep a track of my altitude at the same time without changing my body position; Convinient! :) Does anyone out there use a bonehead alti-mount at all? What do you think of it? Does anybody know if it would be handy for a free-fly begginer, so you don't have to move your arms radically to see it? Cheers!
  6. JohnGraham
    I know the Zerox (manufactured in the UK) uses a vector-style RSL, but I also believe it is an exact copy of the Vector, so it would! As for your question about the Collin's Lanyard, do a search with those two words on the forums right here on DZ.com and, like most things, you will probably find out more about the subject than you ever thought there was to know!
  7. JohnGraham
    Have you tried the classifieds right here on DZ.com? http://www.dropzone.com/cgi-bin/classifieds/search.cgi?d=1&query=aviator&catid=13 Keep your eye on local dealers as well, you may be able to pick up a bargain.
  8. JohnGraham
    Hey y'all! Can anyone tell me where I can get my hands on the technical specifications of 3-ring systems made by various manufacturers? I'm particularly interested in RWS mini, standard and tandem 3-rings and Aerodyne and Icon mini 3-rings, but any will be helpful! What I'm after is the set diameters/radii and thickness of the rings themselves and the distances between where they contact each other and the top/bottom of the middle and small rings as they are when the manufacturer makes them (if they are made perfectly to the manufacturer's specs) This is for a final year maths project that I'm working on, and I'd be very grateful if someone could send me the relevant info, show me where to look on the web (I tried the RWS website but I just got an error message about bandwidth ) or where I can look it up. Would I find any of this info in Dan Poyners' Parachute Manual? Cheers!
  9. JohnGraham
    If you take a look at this article by RWS there's a table about 3/4 of the way down detailing riser breaking strain for reversed and non-reversed risers - in the notes for the reversed riser it says that: but the non-reversed riser did not malfunction in this way, except in one case where: Erno - you could also put reversed risers on your chart to compare them with RWS and aerodyne rings. Oh yeah and in that same article it says "Ask about how the 08/98 spec. [riser] is designed to reduce breaking at grommet." So, could anyone from RWS tell me how is the 08\98 spec. riser designed to do this? Just more reinforcement or what?
  10. JohnGraham
    I did too - it was an annoyingly slow progression, what with the british weather and all, and took me just over 6 months to get the 22 jumps for my licence, but it did give me the chance to get a good all-round knowledge of the sport that I'm glad I got.
  11. JohnGraham
    Just to clarify, I'm very pleased with the openings I get with my hornet from a standard pro-pack, I just read the above-mentioned document for education/interests sake and wondered what these terms meant. (yeah, I'm a geek, but I find that sort of stuff interesting enough!) Cheers again!
  12. JohnGraham
    Thank you very much for all the info, 'tis much appreciated!
  13. JohnGraham
    Because if you do it in the loo, the locker shakes and everyone can hear.
  14. JohnGraham
    Sorry if this is a stupid question, but the document on the PD website How To Prevent Hard Openings mentions "briefcase" and "roll pack" packing methods - what do these methods involve? I might just not be recognising the terminology here - is a roll pack just another name for a precision/psycho pack? If that were so then my guess for briefcase would be that it's another name for a flat-pack, am I warm?
  15. JohnGraham
    I feel I must protest - I've heard lots of people say this, and I've also heard a lot of people say the exact opposite, that the buyer should under no circumstances part with any money untill they have the goods and have had them checked out by a rigger. If buyers and sellers both stuck to these respective pieces of advice, the only second hand gear sales would be those that were performed face to face, with just a few between those who know each other! IMHO, a "trusted third party method" is without doubt the best method to use when dealing with these transactions - either a respected rigger or DZO/CCI, or even a professional escrow service. I've used escrow.com before and would use them before, but there are plenty more out there. Good luck selling your gear!
  16. JohnGraham
    Just a quick question to you and anyone else who has done this in the air - were you wearing any/thick gloves? If not, how hard would it be to do this with really thick gloves on? Cheers, JG