<DIV>
<DIV>It would be interesting to revisit the noise rules for a different approach. As these engines are developed w/ more cubic inches it becomes more difficult to prop them effectively. Thus the multi blade props.</DIV>
<DIV> </DIV>
<DIV>lol...hope I dont regret mentioning this. <BR><BR><BR><B><I>Adam Glatt <adam.g@sasktel.net></I></B> wrote:</DIV>
<BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">That brings up a good point. With the release of JR's PCM synth <BR>receiver, it is now very easy to monitor throttle positions from the <BR>ground for every competitor. Anyone willing to volunteer their synth <BR>receiver next July? We need one JR and one Futaba.<BR>-Adam<BR><BR>Chad Northeast wrote:<BR>> Tom<BR>><BR>> Is this without an air restrictor? If not have you tried it with one?<BR>><BR>> I beleive most of the 160/170DZ pilots in France were running some <BR>> form of intake restrictor on their engines.....as well as condition <BR>> switches! j/k I really dont know that for certain.<BR>><BR>> Chad<BR>><BR>> Koenig, Tom wrote:<BR>><BR>>> Gents,<BR>>><BR>>> Just shooting for prop combinations.<BR>>><BR>>> On the weekend we were doing some ( disturbing) noise tests. We are <BR>>> also about to run our
annual comp and team trials for CAOCC and our <BR>>> Bi-annual Trans Tasman punch up with the new Zealander's, where we <BR>>> will be noise testing. so I thought I'd better be prepared.<BR>>><BR>>> Anyway- my 160 DZ, Hattori 698, CD header on 29 % Nitro Coolpower <BR>>> 'blue' oil, Hyde style soft mount, APC 16.5 x 12 W and Synergy <BR>>> airframe produced 99 DB at 3 meters @ 8600 rpm!!!!!!!!<BR>>><BR>>> This thing is making a RACKETT!!!!!<BR>>><BR>>> Next day I went down to 25% Nitro and 15.5 x 12.5 W and reduced this <BR>>> to 95 DB.<BR>>><BR>>> Now I am not running that different a set-up to most people, but it <BR>>> confirms my suspicion that most of those that I compete against are <BR>>> WAY over the noise limit.<BR>>><BR>>> Since I have heaps of power I am about to try a 20% nitro mix and see <BR>>> if I can get the thing to shut some more. I am also considering
<BR>>> trying a 15.5 four blade.<BR>>><BR>>> Those of you who HAVE noise tested your set ups.....what are you <BR>>> using successfully???<BR>>><BR>>> Thanks for any recommendations.<BR>>><BR>>> Tom<BR>>><BR>>> ************************************************************************<BR>>> *PLEASE NOTE* This email and any attachments may<BR>>> be confidential. If received in error, please delete all<BR>>><BR>>> copies and advise the sender. The reproduction or<BR>>><BR>>> dissemination of this email or its attachments is<BR>>><BR>>> prohibited without the consent of the sender.<BR>>><BR>>> WARNING RE VIRUSES: Our computer systems sweep<BR>>> outgoing email to guard against viruses, but no warranty<BR>>><BR>>> is given that this email or its attachments are virus free.<BR>>><BR>>> Before opening or using attachments, please check
for<BR>>><BR>>> viruses. Our liability is limited to the re-supply of any<BR>>><BR>>> affected attachments.<BR>>><BR>>> Any views expressed in this message are those of the<BR>>><BR>>> individual sender, except where the sender expressly,<BR>>> and with authority, states them to be the views of the<BR>>><BR>>> organisation.<BR>>> ************************************************************************<BR>>> ==============================================If you want your reply <BR>>> email to go to the list, you must Cc: the list!<BR>>><BR>>> To access the email archives for this list, go to<BR>>> http://lists.f3a.us/pipermail/nsrca-discussion/<BR>>> To be removed from this list, go to http://www.nsrca.org/discussionA.htm<BR>>> and follow the instructions.<BR>>><BR>>> List members email returned for mailbox full will be removed from the <BR>>>
list.<BR>>><BR>>><BR>>> <BR>>><BR>> =================================================<BR>> If you want your reply email to go to the list, you must Cc: the list!<BR>><BR>> To access the email archives for this list, go to<BR>> http://lists.f3a.us/pipermail/nsrca-discussion/<BR>> To be removed from this list, go to http://www.nsrca.org/discussionA.htm<BR>> and follow the instructions.<BR>><BR>> List members email returned for mailbox full will be removed from the <BR>> list.<BR>><BR>=================================================<BR>If you want your reply email to go to the list, you must Cc: the list!<BR><BR>To access the email archives for this list, go to<BR>http://lists.f3a.us/pipermail/nsrca-discussion/<BR>To be removed from this list, go to http://www.nsrca.org/discussionA.htm<BR>and follow the instructions.<BR><BR>List members email returned for mailbox full will be removed from the list.<BR><BR></BLOCKQUOTE></DIV><p>
<hr size=1>Yahoo! for Good<br>
<a href="http://store.yahoo.com/redcross-donate3/">Click here to donate</a> to the Hurricane Katrina relief effort.