Helmets - Should you? and Which?
Join Date: Mar 2002
Location: 3 Degrees North
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I replaced the original mic on my SPH4 (Civilian) with an electret 2 years ago. It was ok but changed recently to a David Clark Dynamic amplified mic (from 10.34 headset) and it is a lot easier for ATC to understand your voice in a noisy cockpit.
Join Date: Jun 2004
Location: uk
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Thanks for your replies,
I`m not paying for it just been asked to source one.
We had an Alpha Eagle helmet on order for about 7 months but they keep mucking us about.
I`m looking at the Gallet LH250 helmet at the minute. Just trying to get the comms sorted out.
I`m not paying for it just been asked to source one.
We had an Alpha Eagle helmet on order for about 7 months but they keep mucking us about.
I`m looking at the Gallet LH250 helmet at the minute. Just trying to get the comms sorted out.
Join Date: Sep 2002
Location: Australia
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Low impedence = around 8 - 17 ohms
High impedence = around 300 ohms
Civil aircraft VHF radios use high impedence, as do UHF CB type radios.
Military aircraft use low impedence setups.
Low impedence mics, M87 and M101, can be amplified to high impedence with a plug in amp. Both are dynamic mics.
Electret mics tend to be high impedence. Stand to be corrected.
Seems to be important in multi crew to have every one the same. Seems electricity, like water, takes the easiest way, so whoever has the lowest impedence gets all the electricity.
Thats how it was explained to me (I think)
Best bet? Have a look at what everyone else is using and get the same.
High impedence = around 300 ohms
Civil aircraft VHF radios use high impedence, as do UHF CB type radios.
Military aircraft use low impedence setups.
Low impedence mics, M87 and M101, can be amplified to high impedence with a plug in amp. Both are dynamic mics.
Electret mics tend to be high impedence. Stand to be corrected.
Seems to be important in multi crew to have every one the same. Seems electricity, like water, takes the easiest way, so whoever has the lowest impedence gets all the electricity.
Thats how it was explained to me (I think)
Best bet? Have a look at what everyone else is using and get the same.
Join Date: Sep 2003
Location: Australia
Age: 47
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Gentex Helmet Wanted
Hi Guys,
Im after a helmet either a gentex SPH5 OR Alpha, locally in Australia would be preferred and in good condition.
I know they are like as rare as rocking horse S*%T but one of you guys may know where i can get a hold of one
Cheers
BT
Im after a helmet either a gentex SPH5 OR Alpha, locally in Australia would be preferred and in good condition.
I know they are like as rare as rocking horse S*%T but one of you guys may know where i can get a hold of one
Cheers
BT
Join Date: Sep 2002
Location: Australia
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belly tank,
Try www.fieldair.com.au classifieds section.
Seriously though, consider buying new, the cost difference is not huge and you know what you are getting.
www.flightsuits.com are worth a look - bought new from them for what some people pay for used.
Try www.fieldair.com.au classifieds section.
Seriously though, consider buying new, the cost difference is not huge and you know what you are getting.
www.flightsuits.com are worth a look - bought new from them for what some people pay for used.
Join Date: Sep 2003
Location: Australia
Age: 47
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Currawong,
Thanks champ. i will have a look. i wanted one for my crewie, i will most likely go a new one that way you know what your getting. but thanks guys for the info. i Bought a Alpha new from a distributer here they are a good helmet but it took me 6 months to get it after being ordered. I cannot wait this long this time.
cheers
Thanks champ. i will have a look. i wanted one for my crewie, i will most likely go a new one that way you know what your getting. but thanks guys for the info. i Bought a Alpha new from a distributer here they are a good helmet but it took me 6 months to get it after being ordered. I cannot wait this long this time.
cheers
Join Date: Dec 2003
Location: New Zealand
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SPH5
Mark mackay at helipro in nz sells reconditioned SPH 4b's and 5's.
for around 900 to 1000 nzd
His phone no. is ++ 64 27 245 9490.
There is currently a recon SPH4B at www.trademe.co.nz going for $900nzd
I know what you mean about flightsuits, i've given up dealing with them.
good luck mate.
woops, you don\'t mean flight suits at all.
As for that alpha dealer, do you know there are 2 alpha dist. in aussie now??
for around 900 to 1000 nzd
His phone no. is ++ 64 27 245 9490.
There is currently a recon SPH4B at www.trademe.co.nz going for $900nzd
I know what you mean about flightsuits, i've given up dealing with them.
good luck mate.
woops, you don\'t mean flight suits at all.
As for that alpha dealer, do you know there are 2 alpha dist. in aussie now??
Gatvol
Join Date: Jun 2000
Location: KLAS/TIST/FAJS/KFAI
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I have one for sale, but the price would choke a horse. I just built on from a new SPH-4B. Sent it to www.flightsuits.com and had the earphones and mike replaced to be adaptable with civilian Helicopters. Next it went to www.smokinpaint.com Where it was painted a beautiful Baby Blue and dual visors installed. Last was the addition of a lip light in both green and xenon by www.seitzinc.com
So with all the money in it, I cant even advertise it for sale. Guess I will have to enjoy it. (But for $1200 U.S you can have it and a new Blue Nomex flight suit........)
Also if you want to find helmets try www.ebay.com I have seen a few there also.
So with all the money in it, I cant even advertise it for sale. Guess I will have to enjoy it. (But for $1200 U.S you can have it and a new Blue Nomex flight suit........)
Also if you want to find helmets try www.ebay.com I have seen a few there also.
I don't want to be the best pilot in the world - Just the oldest
Join Date: Jun 2001
Location: Here and there
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Hey Wiz,
I hope the one in the Aviation Trader isn't the same piece of crap you have bouncing around the floor of your Landcruiser?
Belly Tank,
I just did a quick search, there are a few listed on EBAY.
I hope the one in the Aviation Trader isn't the same piece of crap you have bouncing around the floor of your Landcruiser?
Belly Tank,
I just did a quick search, there are a few listed on EBAY.
Bugsmasherdriverandjediknite
Join Date: Jul 2000
Location: Bai, mi go long hap na kisim sampla samting.
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thats a bit harsh IJ. My kids spent hours working on that piece of art.
currently in nagotiations for a replacement...........that will probably recieve the same treatment from the monst........er......kids.
currently in nagotiations for a replacement...........that will probably recieve the same treatment from the monst........er......kids.
Join Date: Jun 2004
Location: QLD AUSTRALIA
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Helmet Choice
Hi all,
Ive been looking around for a helmet to replace my old gentex. Im seriously looking at the CGF Gallet models but cant find any one who has one. Any one had any experience with these?
Cheers and keep it upright!!
TM
Ive been looking around for a helmet to replace my old gentex. Im seriously looking at the CGF Gallet models but cant find any one who has one. Any one had any experience with these?
Cheers and keep it upright!!
TM