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yakjock(at)gmail.com
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 Posted: Wed Dec 29, 2010 6:35 am Post subject: CJ6 wheel well drag |
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Paul,
As part of our drag reduction development work on "Hana Hou", Tom Elliott and I took a ton of video and still pictures in flight with the plane extensively tufted. Corroborating Craig Payne's experience, we found very little disturbance aft of the main wheel wells. We therefore spent most of our time in and around the engine area as you have seen.
As for exhaust gasses in the cockpit, the side exhaust stacks have almost totally eliminated the problem even when generating smoke on both sides. With the exhaust stack configuration on "Hana Hou" I have experienced more noise, and that is requiring some changes in the intercom/headset equipment to overcome. So far I have found that the Lightspeed Zulu headsets are the best headsets I have tried, but not a coplete solution.
Hal Morley
[quote][b]
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ReadeG(at)cairnwood.com
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| Posted: Wed Dec 29, 2010 6:48 am Post subject: CJ6 wheel well drag |
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Hal:
RE: Headsets – my experience in flying Yaks and other round engine airplanes (NA-50, Wilga) is that the ZULU is a great headset but for the really noisy ones, the older Bose Series II (second generation) headsets are the best. They are heavy but very rugged and seem to handle the noise just a little better. I use the ZULU in the TD (stock exhaust) and it works fine.
Reade Genzlinger
Cairnwood Cooperative Corp.
215.914.0370
With the exhaust stack configuration on "Hana Hou" I have experienced more noise, and that is requiring some changes in the intercom/headset equipment to overcome. So far I have found that the Lightspeed Zulu headsets are the best headsets I have tried, but not a coplete solution.
Hal Morley
[quote]===========[b]
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okanoganlew(at)gmail.com
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| Posted: Wed Dec 29, 2010 8:07 am Post subject: CJ6 wheel well drag |
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Hi Hal, thanks for the info.
Paul
On Wed, Dec 29, 2010 at 6:31 AM, Hal <yakjock(at)gmail.com (yakjock(at)gmail.com)> wrote:
[quote] Paul,
As part of our drag reduction development work on "Hana Hou", Tom Elliott and I took a ton of video and still pictures in flight with the plane extensively tufted. Corroborating Craig Payne's experience, we found very little disturbance aft of the main wheel wells. We therefore spent most of our time in and around the engine area as you have seen.
As for exhaust gasses in the cockpit, the side exhaust stacks have almost totally eliminated the problem even when generating smoke on both sides. With the exhaust stack configuration on "Hana Hou" I have experienced more noise, and that is requiring some changes in the intercom/headset equipment to overcome. So far I have found that the Lightspeed Zulu headsets are the best headsets I have tried, but not a coplete solution.
Hal Morley
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"_blank">www.aeroelectric.com
.com/" target="_blank">www.buildersbooks.com
="_blank">www.homebuilthelp.com
_blank">http://www.matronics.com/contribution
et="_blank">http://www.matronics.com/Navigator?Yak-List
ttp://forums.matronics.com
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thomasg(at)infosysnetwork
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| Posted: Wed Dec 29, 2010 2:10 pm Post subject: CJ6 wheel well drag |
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| Quote: |
Hal <yakjock(at)gmail.com> wrote:
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Paul,
As part of our drag reduction development work on "Hana Hou", Tom Elliott and I took a ton of video and still pictures in flight with the plane extensively tufted. Corroborating Craig Payne's experience, we found very little disturbance aft of the main wheel wells. We therefore spent most of our time in and around the engine area as you have seen.
As for exhaust gasses in the cockpit, the side exhaust stacks have almost totally eliminated the problem even when generating smoke on both sides. With the exhaust stack configuration on "Hana Hou" I have experienced more noise, and that is requiring some changes in the intercom/headset equipment to overcome. So far I have found that the Lightspeed Zulu headsets are the best headsets I have tried, but not a coplete solution.
Hal Morley
[quote]
ectric.com
">www.buildersbooks.com
builthelp.com
.matronics.com/contribution
://www.matronics.com/Navigator?Yak-List
ics.com
[b]
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radiopicture
Joined: 23 Jun 2008
Posts: 263
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| Posted: Wed Dec 29, 2010 7:23 pm Post subject: CJ6 wheel well drag |
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The Telex Status 50D seems very good in high noise environment (much better than the Bose X, not sure about the older ones), but the Clarity Aloft is my favorite... all passive, very intelligible mic and very low mass.
On Dec 29, 2010, at 9:44 AM, Genzlinger, Reade wrote:
| Quote: | Hal:
RE: Headsets – my experience in flying Yaks and other round engine airplanes (NA-50, Wilga) is that the ZULU is a great headset but for the really noisy ones, the older Bose Series II (second generation) headsets are the best. They are heavy but very rugged and seem to handle the noise just a little better. I use the ZULU in the TD (stock exhaust) and it works fine.
Reade Genzlinger
Cairnwood Cooperative Corp.
215.914.0370
With the exhaust stack configuration on "Hana Hou" I have experienced more noise, and that is requiring some changes in the intercom/headset equipment to overcome. So far I have found that the Lightspeed Zulu headsets are the best headsets I have tried, but not a coplete solution.
Hal Morley
| Quote: | ===========
style="color: blue; text-decoration: underline; ">www.aeroelectric.com
href="http://www.buildersbooks.com" style="color: blue; text-decoration: underline; ">www.buildersbooks.com
style="color: blue; text-decoration: underline; ">www.homebuilthelp.com
style="color: blue; text-decoration: underline; ">http://www.matronics.com/contribution
style="color: blue; text-decoration: underline; ">http://www.matronics.com/Navigator?Yak-List
blue; text-decoration: underline; ">http://forums.matronics.com
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