John: On the down wind side of the mountain you will have very strong headwinds because the air is accelerated to very much higher as it rises(Bernoulli Effect) and then will take a while to slow down as the ground falls away all the while giving you a major down draft to fight as well. When ever I flew from So. CA to IL I would cross the ridge between Las Vegas & Santa Fe NM at either 11,500 ft or 12,500 ft but if I had to stop in either place I would stop after crossing the ridge in my direction of travel because both were tucked in so close to the ridge. Mountain flying techniques are quite strongly stressed when you lear tto fly out west for the very reasons you have mentioned. It is easy to get into situations with small craft that are difficult to get out of.
Don -------------------------------------------------------------------------------- ----- Original Message ----- From: "John" <johng...@comcast.net> To: "KRnet" <kr...@mylist.net> Sent: Sunday, June 03, 2007 11:33 PM Subject: Re: KR> Turbo to maintain Sealevel intake manifold pressure > Hi, > > I forgot the piper 180 that took 2 hours to climb to 8k feet in the > downhill (read downwind) side of a mountain range. > > I have never gotten anything naturally aspirated to 10k. Perhaps > I did not have the time to wait (or the distance).. > > jg > > Gotta get high fast.. > > > > > > > > > On Sun, 2007-06-03 at 21:42 -0500, D Lively wrote: >> John: >> >> I would say that your proposed use of a turbo charger is its best use but >> personally have flown C-172s to 13,000 & C-182s to over 15000' for short >> periods but view 12,500 ft about the limit for sustained operation by a >> non-smoking pilot or passenger without Oxygen. I believe the craft you site >> all have service cielings in the 14000 area anyway. Beware of over-boosting >> as it can be hard on engines and shorten their life. >> >> Having been in and out of Prescott AZ several times as well as high density >> altitude conditions in the Calif. Central Valley and those of the CA deserts >> I can understand your position very well. >> >> Don Lively >> -------------------------------------------------------------------------------- >> >> >> ----- Original Message ----- >> From: "John" <johng...@comcast.net> >> To: "KRnet" <kr...@mylist.net> >> Sent: Sunday, June 03, 2007 9:11 PM >> Subject: KR> Turbo to maintain Sealevel intake manifold pressure >> >> >> > >> > >> > I just made a deposit on a new long block 2180 for >> > my KR2. >> > >> > I am in the Seattle area and virtualy surrounded by mountains. >> > >> > I have only 150 hours PIC, but in a pretty wide variety of >> > craft (C-150, Musketeer, C-172, Champ, C-120, >> > C-150 Long range, beech 1900 etc... All of them seem (except the 1900) >> > to run out of "guts" at about 9K feet. I can't remember ever making 10k >> > feet, they all were naturally aspirated. Going over a 4k to 6k mountain >> > range just to leave town leaves me wanting to clear those "Don't land >> > here" speed bumps by oh, say, 5k or 6k ft. Can't get there from >> > "naturally aspirated" here. >> > >> > I am not a speed or performance demon. I fly like I drive: >> > sort of slow and methodical. But I want to clear those rocks >> > (and the bigger ones east of there) by a wider margin. >> > >> > So,, I want a turbo charger. I can find one, but I have not been able >> > to find a controller for the waste gate that will limit the intake >> > manifold pressure to 29.92 inches of mercury. Or I suppose >> > open the waste gate at 3700 rpm. >> > >> > Any ideas? >> > >> > Thanks >> > >> > jg >> > >> > >> > >> > >> > _______________________________________ >> > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp >> > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net >> > Post photos, introductions, and For Sale items to >> > http://www.kr2forum.com/phpBB2/index.php >> > please see other KRnet info at http://www.krnet.org/info.html >> > >> _______________________________________ >> Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp >> to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net >> Post photos, introductions, and For Sale items to >> http://www.kr2forum.com/phpBB2/index.php >> please see other KRnet info at http://www.krnet.org/info.html > > > _______________________________________ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net > Post photos, introductions, and For Sale items to > http://www.kr2forum.com/phpBB2/index.php > please see other KRnet info at http://www.krnet.org/info.html >
