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MRC
·Pilots use them for calculations. As I am not a pilot I cannot tell you more.
Leobe Watch - please explain the bezel!!!
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Norfolk
·Franken it may be but still keeping perfect time! One to bring out and confuse others at watchmeets...if we ever have them again.
The Psychiatrist Watch for future reference... 55 minute sessions...
The Psychiatrist Watch for future reference... 55 minute sessions...
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pongster
·Pilots use them for calculations. As I am not a pilot I cannot tell you more.
am familiar with the slide rule chronographs of breitling and seiko. this does not appear to work like it
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tikkathree
·Here's a two part bezel you guys can help me with please; the inner bezel rotates off the crown at nine. I have no idea.
Seiko 7T34 JDM model.
Seiko 7T34 JDM model.
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TDBK
·Here's a two part bezel you guys can help me with please; the inner bezel rotates off the crown at nine. I have no idea.
Seiko 7T34 JDM model.
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RonJ
·A wristwatch slide-rule works when you are sitting on a bar stool. In the air you need something rather bigger and so easier to read. I also had a top-of-the-range TI calculator with the Aviation prom and other programs on magnetic cards. Impossible to use it and still fly the aeroplane.
The circular slide rule used by pilots is called an E6B Flight Computer.
When I got my private pilots license, they taught us how to work one (back in the 1990s).
You can do various time, fuel burn, and distance calculations.
Also, the clear plastic window in the middle can be used to calculate the wind correction angle for flight planning.
One of the great moments in the original Star Trek TV show, is the Enterprise's space flight computer malfunctions and Spock pulls out an E6B device and starts doing some calculations on it. 😀
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tikkathree
·Take a look at https://storage.seikowatches.com/production/files/2018/03/20/143338689140/pdf/SEIKO_6S37.pdf ; it's for a similar watch but with the inner/outer bezels reversed.
Oh bless you, thank you.
The standard Seiko Flightmaster bezel I'm familiar with. My apologies for the colour scheme on this one: I think it takes the west to east "red eye" to a new level.
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MRC
·The circular slide rule used by pilots is called an E6B Flight Computer.
When I got my private pilots license, they taught us how to work one (back in the 1990s).
You can do various time, fuel burn, and distance calculations.
Also, the clear plastic window in the middle can be used to calculate the wind correction angle for flight planning.
One of the great moments in the original Star Trek TV show, is the Enterprise's space flight computer malfunctions and Spock pulls out an E6B device and starts doing some calculations on it. 😀
Your Earthling E-6B comes in two speed ranges: 40-260kt and 200-700kt, bit slow for Mr Spock to use. Perhaps Starfleet had special ones made
I got the Gorilla Glue out last night and mine is now airworthy again.
All I fly now are multi-rotors though, payload 1 GoPro, endurance 12min.
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RonJ
·Your Earthling E-6B comes in two speed ranges: 40-260kt and 200-700kt, bit slow for Mr Spock to use. Perhaps Starfleet had special ones made
I got the Gorilla Glue out last night and mine is now airworthy again.
All I fly now are multi-rotors though, payload 1 GoPro, endurance 12min.
Very good.
I dug up my old flight bag and found my E6B and my old Sporty's Flight Calculator.
Good times. 😀
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RonJ
·And I have the slide rule bezel on my Citizen WR200 pilot watch.
I don't think they make reading glasses strong enough for me to able to see any calculations done on that bezel though. 😀
I don't think they make reading glasses strong enough for me to able to see any calculations done on that bezel though. 😀
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tikkathree
·And I have the slide rule bezel on my Citizen WR200 pilot watch.
I don't think they make reading glasses strong enough for me to able to see any calculations done on that bezel though. 😀
Really?
Why, dear chap, if I zoom your photo up by 250% it's perfectly clear. Ish!
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MRC
·Very good.
I dug up my old flight bag and found my E6B and my old Sporty's Flight Calculator.
Good times. 😀
Hey, that's the high-speed scale! What were you flying if you can tell us?
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Flintlock
·And I have the slide rule bezel on my Citizen WR200 pilot watch.
I don't think they make reading glasses strong enough for me to able to see any calculations done on that bezel though. 😀
That Citizen looks like it has the inner time scale as well. My Citizen, Blue Angels, only has the outer scales. It has a Alpinist style knob to rotate them. It's fairly good looking for a quartz, the scales are microscopic unless you use a 5x loupe. I have a phone app that replaces calculator and slide rule. I have been ruined by easy living.
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MRC
·I was flying my Cessna 182.
I think even straight down, it wouldn't go over 150 kts. 😀
I have no idea why my E6B would be for the higher speeds.
Loved that plane. Sold it a little over 3 years ago.
Nice 👍
I used to fly (errrrrrm, in) my late friend's microlight :-
Yes, it is a microlight, cruise at 110mph, select flaps 10 up from from 0 and the ASI jumps up 15mph. Not bad for 82.5 cu in 😉
I was down to fly (obviously just in, that's all) his latest acquisition but he passed away before I got a chance.
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RonJ
·Nice 👍
I used to fly (errrrrrm, in) my late friend's microlight :-
Yes, it is a microlight, cruise at 110mph, select flaps 10 up from from 0 and the ASI jumps up 15mph. Not bad for 82.5 cu in 😉
I was down to fly (obviously just in, that's all) his latest acquisition but he passed away before I got a chance.
Looks like a lot of fun to fly that.
Sorry your friend passed away.
I've had several friends die in the past year and I miss them all.
.
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MRC
·Looks like a lot of fun to fly that.
It was 😁
He bought a crashed one so he could take the RH door off it and modify the door for photography. Someone from Germany with number of aerial picture books to his name would come here and they'd spend a week taking pictures in the few hours after dawn of parts of the UK.
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Professor
·Franken it may be but still keeping perfect time! One to bring out and confuse others at watchmeets...if we ever have them again.
The Psychiatrist Watch for future reference... 55 minute sessions...
I vaguely remember a previous thread that identified this sort of bezel, something to do with navigation on or over the ocean but I can't remember what.
Something from the 1920's or early 30's.
Possibly related to this sort of watch?
https://www.jomashop.com/longines-l...00202243661&utm_content=Flash Sale $3000-6000
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Flintlock
·Nice 👍
I used to fly (errrrrrm, in) my late friend's microlight :-
Yes, it is a microlight, cruise at 110mph, select flaps 10 up from from 0 and the ASI jumps up 15mph. Not bad for 82.5 cu in 😉
I was down to fly (obviously just in, that's all) his latest acquisition but he passed away before I got a chance.
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MRC
·Could you tell me what it means raise flaps 10° from zero and what 'ASI' is please? Is it airspeed indicator? Did it mean that 10° raise lowers speed by 15?
OK, flaps normally go down -- it increases the lift and the drag. It's mainly used for landing to get the lift you need at a lower airspeed. Needs more power to compensate, but for most aircraft less than 100 years old there will be power to spare at landing speed. Raising the flaps above the "neutral" point will decrease lift and drag but at cruising speeds there is lift to spare. So the aircraft goes faster for the same power setting, for the Flight Design CTSW 15 mph faster at the same throttle setting.
ASI is, as you thought, Air Speed Indicator. Unlike @RonJ-in-VA's Cessna 182 the CTSW won't go fast enough to need a Machmeter, which tells you what at proportion of the speed of sound you are going. That does get very important when he explores the upper end of his E-6B 😉
I've deleted a lot of technical stuff, it's all a complicated balancing act, but keep asking if you want more 📖
