shunkka 0 #1 October 10, 2004 last weekend on a 3 way (all with Barigo altimeter) i saw in the plane a difference of 200-250m difference between our altitude and others (with other kind of altimeters). we checked before and after jump on the ground and it was at zero again. it`s a common problem? (i always jumped with this altimeter but now was for the very first time when i checked others altimeter) all Barigo`s alti show 4300-4400m and others show 4100-4200m. anyone knows something about this problem? thanks ------------------------- "jump, have fun, pull" Quote Share this post Link to post Share on other sites
skydiverton 0 #2 October 11, 2004 Who cares, only 1500m and lower is relevant. ++++++++++++++++++++++++++++++++++++++++++++ Using your droque to gain stability is a bad habit, Especially when you are jumping a sport rig Quote Share this post Link to post Share on other sites
AggieDave 6 #3 October 11, 2004 You said in the plane. You just taught yourself an important lesson, well a couple of them. 1. Altimeters aren't perfect and accurate. They're just accurate enough for our needs. 2. Altimeters read off sometimes in the plane due to being in the plane. Different pressures, temps, etc all effect what they read and since you sitting next to the window with the engine outside of it as opposed to next to the door with the air flowing, it might read different. Hell, even just a couple feet away it might read differently.--"When I die, may I be surrounded by scattered chrome and burning gasoline." Quote Share this post Link to post Share on other sites
riggerrob 643 #4 October 11, 2004 Is your altimeter accurate - to within a second - at pull altitude? That is the only altitude that really matters. Quote Share this post Link to post Share on other sites
kelpdiver 2 #5 October 12, 2004 QuoteIs your altimeter accurate - to within a second - at pull altitude? That is the only altitude that really matters. How would one know? Strap em together on one arm and do a test jump? Or having everyone check at the breakoff signal and talk about it after? Quote Share this post Link to post Share on other sites
riggerrob 643 #6 October 12, 2004 QuoteQuoteIs your altimeter accurate - to within a second - at pull altitude? That is the only altitude that really matters. How would one know? Strap em together on one arm and do a test jump? Or having everyone check at the breakoff signal and talk about it after? >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> While the airplane is climbing, compare your altimeter with the altimeters of people sitting beside you. Quote Share this post Link to post Share on other sites
LouDiamond 1 #7 October 12, 2004 There is what is known as an accepted margin of error. Most altimeter manufacturers have their own standards and I don't know what Barigo's is. If your altimeter is reading anywhere from 50-100 feet +/- high/low my guess is that the manufacturer is going to tell you that it is within operational tolerances. Contact the manufacturer and ask them for clarification and what their tolerances are."It's just skydiving..additional drama is not required" Some people dream about flying, I live my dream SKYMONKEY PUBLISHING Quote Share this post Link to post Share on other sites
Shark 0 #8 October 12, 2004 If you've never had it done, get your altimeter calibrated. Here in the US Alti-2 has field reps that can calibrate and/or repair your Alti-2 altimeter. In SoCal we are fortunate to have Alti-Bob. I have mine checked regularly whether they need them or not. Quote Share this post Link to post Share on other sites
kelpdiver 2 #9 October 12, 2004 Quote While the airplane is climbing, compare your altimeter with the altimeters of people sitting beside you. {slaps self} But can you still have variances in the terminal airflow as opposed to inside the plane? Dave suggests that could be a factor. Certainly reinforces the notion that you should be looking at the ground as well as the instrument. Quote Share this post Link to post Share on other sites