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You know, I have to say that if these things actually produce 40 pounds of thrust, it's pretty impressive for it's blade size. The prop must be spinning pretty fast. I don't know the thrust of a Gavin but I think the Apollo/Dacor is 40 pounds. Art. -----Original Message----- From: Geoff Kelafant [mailto:kelafant@rr*.ne*] Sent: Saturday, August 25, 2001 2:58 PM To: ben@je*.co*; techdiver@aquanaut.com Subject: Re: Silent Submersion Vs Dacor - Jetboots > I'm not aiming these toward the hard core tech/wreck set, but I felt it was important to post a description since someone else mentioned Jetboots. > > There are more failure points on Jetboots because they are more complex than scooters, but they have been engineered to be fault tolerant. Unlike a scooter, you can disconnect the power source while underwater - this means that the most dangerous failure mode of Jetboots is that they stop functioning (you of course wear fins with Jetboots). Jetboots might not be the best propulsion system for a deep cave or net-covered wreck, but they are fun and do open up possibilities for dives that require propulsion and hands-free operation. We have also had significant interest from the various militaries and from divers with certain physical handicaps. > Then how come you have goofy statements like: > "Jetboots are designed to withstand anything you throw at them, whether it > is deep cave penetration or a large scale search and rescue operation. A > comfortable detachable battery pack can be used for dives anywhere between > the surface and 130 foot depth. For deeper operations a hard battery pack > straps on to the tank. This hard pack and a small modification to the > cabling allows operation to depths in excess of 300 feet." on your website? Hmm... deep cave penetration, operation to depths in excess of 300 feet. I believe YOU are the one making these statements, not someone on this list. Just how far and how deep did you get in a cave during the design and testing? With a burn time of 35 minutes (as per your website) i imagine it must have been several thousand feet at a couple hundred feet of depth. And I assume you tested the boots while wearing double 95/104/120 tanks, etc in full cave configuration just to see how well they would work, although for many of us a single 80 would probably be sufficient given the astounding range. It's pretty easy to change a web page, you know - it's not an engineering challenge like your JetBoots. Perhaps you should have just stayed a lurker or at least cleaned up your act prior to announcing your product on the list. btw - i'm still waiting for someone to own up to this elaborate troll/hoax. It's actually pretty good for this list - no references to penises, bestiality, tits, etc. Geoff Kelafant ----- Original Message ----- From: "Ben Mazin" <ben@je*.co*> To: <techdiver@aquanaut.com> Sent: Saturday, August 25, 2001 2:23 AM Subject: Re: Silent Submersion Vs Dacor - Jetboots > >I'm in SoCal saw the site and read all the material and looked at all >the pictures. For the life of me I can't see HOW in the hell you could >KEEP from getting tangeled in kelp let alone fishing line like on >wrecks and such. > > There are no sharp edges to catch on - kelp slides right off. Entanglement is a hazard in almost all diving situations, but I haven't found Jetboots to significatly increase the amount I get tangled while diving. > > >I'd say they might be FUN BUT I'd never even try them let alone use > >them in anything over 25 feet just in case. I can see many potential >failure points esp for the more aggressive Tech/Wreck style diving >THIS group is all about. > > I'm not aiming these toward the hard core tech/wreck set, but I felt it was important to post a description since someone else mentioned Jetboots. > > There are more failure points on Jetboots because they are more complex than scooters, but they have been engineered to be fault tolerant. Unlike a scooter, you can disconnect the power source while underwater - this means that the most dangerous failure mode of Jetboots is that they stop functioning (you of course wear fins with Jetboots). Jetboots might not be the best propulsion system for a deep cave or net-covered wreck, but they are fun and do open up possibilities for dives that require propulsion and hands-free operation. We have also had significant interest from the various militaries and from divers with certain physical handicaps. > > Ben Mazin > -- > Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. > Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'. -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'. -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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