---------------------------------------------------------- Commander-List Digest Archive --- Total Messages Posted Mon 06/25/07: 7 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 09:07 AM - Rudder Pedal Boots (Moe - Ross Racing Pistons) 2. 09:43 AM - Re: Rudder Pedal Boots (Deneal Schilmeister) 3. 10:11 AM - Re: Rudder Pedal Boots (mike floyd) 4. 03:47 PM - Re: 680FL & 680W Commanders (WINGFLYER1@aol.com) 5. 06:46 PM - Re: Rudder Pedal Boots (Stan) 6. 08:54 PM - Descent Power Quandry... (Robert S. Randazzo) 7. 09:16 PM - Re: Descent Power Quandry... (CloudCraft@aol.com) ________________________________ Message 1 _____________________________________ Time: 09:07:28 AM PST US From: "Moe - Ross Racing Pistons" Subject: Commander-List: Rudder Pedal Boots 625 S. Douglas, El Segundo, CA 90245 $B!|(B Phone: (310) 536-0100 Fax: (310) 536-0333 moe@rosspistons.com Fellow Commander Drivers: The last couple of flights, the pressurization in N680RR my 680F(p) has really been weak. The problem is the boots around the rudder pedals are cracked and leaking air big time. I had always assumed that they were made of a nice, thin, and flexible leather, however, when removed they appear to be cloth that has been coated (almost like an old oil cloth table cloth). Has anyone made or had made replacement rudder pedal boots, and if so, what did you use? Comments will be greatly appreciated. Moe ________________________________ Message 2 _____________________________________ Time: 09:43:45 AM PST US Subject: Re: Commander-List: Rudder Pedal Boots From: Deneal Schilmeister On 6/25/07 11:09 AM, "Moe - Ross Racing Pistons" wrote: > The last couple of flights, the pressurization in N680RR my 680F(p) has r eally > been weak. The problem is the boots around the rudder pedals are cracked and > leaking air big time. I had always assumed that they were made of a nice , > thin, and flexible leather, however, when removed they appear to be cloth that > has been coated (almost like an old oil cloth table cloth). Has anyone m ade > or had made replacement rudder pedal boots, and if so, what did you use? > > Comments will be greatly appreciated. > > Moe I have not had any experience with this, but your description reminds me of the shift boot I had in my 1986 Audi with manual transmission. I had always thought it was leather until I replaced it to find it was a plasticized or rubberized material over a cloth-like base. Just an idea for an =B3adaptation.=B2 -- Deneal Schilmeister ATP Learjet St. Louis, Missouri USA http://deneals.com ________________________________ Message 3 _____________________________________ Time: 10:11:07 AM PST US From: "mike floyd" Subject: RE: Commander-List: Rudder Pedal Boots Those boots are readily available from TCAC part number is 860227-7 and 860227-9 Mike _________________________________________________________________ Get a preview of Live Earth, the hottest event this summer - only on MSN http://liveearth.msn.com?source=msntaglineliveearthhm ________________________________ Message 4 _____________________________________ Time: 03:47:14 PM PST US From: WINGFLYER1@aol.com Subject: Re: Commander-List: 680FL & 680W Commanders Excuse me for butting in but I have a 680 and it will out perform most medium twins out there . It has power to spare. Wingflyer 1@aol.com ************************************** See what's free at http://www.aol.com. ________________________________ Message 5 _____________________________________ Time: 06:46:48 PM PST US From: "Stan" Subject: RE: Commander-List: Rudder Pedal Boots At the Twin Commander University last March, TCAC passed around a few different prototypes for replacement boots they$B!G(Bve designed, built, and tested (the example they showed was for the control column, but the construction methods would be essentially the same for all six boots). The idea is to redesign the boots to make them significantly more durable and easier to replace. From what I saw, they looked very promising, especially compared to the original equipment. No time frame or cost estimates, though. I think that I$B!G(Bll be needing to replace mine soon enough, so I have a particular interest in this topic, too! Regards, Stan N681SP From: owner-commander-list-server@matronics.com [mailto:owner-commander-list-server@matronics.com] On Behalf Of Moe - Ross Racing Pistons Sent: Monday, June 25, 2007 9:09 AM Subject: Commander-List: Rudder Pedal Boots 625 S. Douglas, El Segundo, CA 90245 $B!|(B Phone: (310) 536-0100 Fax: (310) 536-0333 moe@rosspistons.com Fellow Commander Drivers: The last couple of flights, the pressurization in N680RR my 680F(p) has really been weak. The problem is the boots around the rudder pedals are cracked and leaking air big time. I had always assumed that they were made of a nice, thin, and flexible leather, however, when removed they appear to be cloth that has been coated (almost like an old oil cloth table cloth). Has anyone made or had made replacement rudder pedal boots, and if so, what did you use? Comments will be greatly appreciated. Moe ________________________________ Message 6 _____________________________________ Time: 08:54:17 PM PST US From: "Robert S. Randazzo" Subject: Commander-List: Descent Power Quandry... Commanders! As we prepare to put N414C back in service- I've started reviewing the manuals and documents to ensure I have good data on various power settings. I've run into a quandary that I thought some of you (milt!) might have some experience with- and could thus provide some advice! In the AFM- the originally published "descent power" called for setting the props to 2800 RPM and selecting either 28" or 25" depending upon whether you wanted to come down at 1000 or 2000 fpm respectively. Tucked in the back of the AFM- I've found a bulletin from Teledyne Continental dated 07DEC88 (thus post-dating the AFM, obviously) that suggests avoiding high RPM and low MP, while also avoiding low RPM and high MP combinations in order to avoid torsional vibration to the gearing/drive train. All of this makes perfect sense- except that there are hand written notes on the bulletin that leave me scratching my head as to the "correct" method to use for descent power.... (The note reads: "For descent reduce RPM between 1700 + 1400") I called TCM seeking guidance- and they wouldn't even acknowledge that they'd ever made my engines- never mind trying to help me find someone who could help me. I called RAM- and their guy was nervous about giving me any specific power settings (obviously- the 520L/N/M is quite different) but he was able to tell me that on RAM engines they generally recommend that the pilot slow the RPM considerably below cruise RPM before descending.... So- you 685 drivers (and geared engine guru's)- help me interpret what I should be doing to manage these engines appropriately during a normal descent? I'm an airline guy- so I'm used to engine and energy management- and I'm not a chop+drop guy. I'm very comfortable managing engines that are "procedural" by nature- but in order to succeed I really need to know which procedure to use! :-) Thanks, everyone! Looking forward to some feedback! Robert S. Randazzo N414C's current custodian... ________________________________ Message 7 _____________________________________ Time: 09:16:18 PM PST US From: CloudCraft@aol.com Subject: Re: Commander-List: Descent Power Quandry... In a message dated 25-Jun-07 20:55:00 Pacific Daylight Time, rsrandazzo@precisionmanuals.com writes: In the AFM- the originally published "descent power" called for setting the props to 2800 RPM and selecting either 28" or 25" depending upon whether you wanted to come down at 1000 or 2000 fpm respectively. Dear Current Custodian of N414C, The above power settings for descent look pretty good, but it's been so long since I was the custodian of N414C that I don't recall. I will say that 2800 RPM and 25" is not unreasonable as far as a MAP/RPM combination for a this engine. I bet that you'll find that the current state of N414C's pressure vessel will help determine what MAP you use on descent: you may need the higher power at altitude to hold the cabin, so any other theories will be out the window ... or outflow valve to be more correct. I used to just hold cruise power and reduce MAP one inch per 5000' if coming down from the high teens, planning the descent with a decceleration segment to slow and configure for further descent. The Reno basin may not give you that luxury and you may have to "dirty up" to get down after crossing the ridge lines. ____________________________________ Now, Robert, if you'll excuse me and if I can wander off course for a moment to the discussion about the AC-680FL(P) O.E.I. performance, the -FLs were never scary to me with one engine inoperative. The FL(P)s due to their higher weights, were. However, I seldom operated at maximum weights because I was not flying cargo. The MR. RPM conversions certainly provided some fuel economy and freedom from gear boxes but I and many others felt that the potential of the IO-720 never made it to the prop -- or the prop never produced the potential thrust. Was because of the need for inter-coolers? Were the props poorly matched to the engine? I don't know but I was always disappointed in teh O.E.I. performance of the long body MR RPM conversions. I still think they're a terrific airplane and I'd still buy one if I were foolish enough to own an airplane. ;-) ____________________________________ N47RR has been discussed on this net many times and I would hope that Harry Merritt would log in with his comments -- I think Harry was the last one on this list who had it before it went to eBay. It has damage history. It's been repaired. I was impressed with the airplane when I looked at it a few years ago here in Las Vegas, before it got dropped on the floor. I thought it was one of the better MR RPM ships I'd seen. Wing Commander Gordon ************************************** See what's free at http://www.aol.com. ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message commander-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Commander-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/commander-list Browse Digests http://www.matronics.com/digest/commander-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.