---------------------------------------------------------- Rocket-List Digest Archive --- Total Messages Posted Sat 06/17/06: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 04:11 AM - Rocket Flight Training (Matthew Finkelstein) 2. 07:41 PM - Re: Rocket-List Digest: 3 Msgs - 06/16/06 (Phil Ayrton) ________________________________ Message 1 _____________________________________ Time: 04:11:55 AM PST US From: Matthew Finkelstein Subject: Rocket-List: Rocket Flight Training --> Rocket-List message posted by: Matthew Finkelstein I just got back from flight training with Doug Rozendaal in Ol' 84. What a blast !! Flying an F1 from the front seat makes it seem like you're flying a completely different airplane that in the back seat. I have nothing but positive things to say about the whole experience. It was definitely one of the highlights of my 26 years as a pilot. Mason City airport is a great location without a whole lot of traffic and great runways. I'm already planning a return trip. Thanks again to Doug for the training and hospitality. Thanks to Mark for a phenomenal aircraft. Matt Finkelstein ________________________________ Message 2 _____________________________________ Time: 07:41:06 PM PST US From: "Phil Ayrton" Subject: Rocket-List: Re: Rocket-List Digest: 3 Msgs - 06/16/06 --> Rocket-List message posted by: "Phil Ayrton" Well we seem to have the problem solved, and it was an earthing issue. After carefully assessing the way the instruments were grounded we have made some adjustments and...voila! the gauges are now rock steady and providing real and accurate engine monitoring data. Thanks for your help best regards Phil Ayrton ----- Original Message ----- Sent: Saturday, June 17, 2006 4:57 PM > * > > ================================================= > Online Versions of Today's List Digest Archive > ================================================= > > Today's complete Rocket-List Digest can also be found in either of the > two Web Links listed below. The .html file includes the Digest formatted > in HTML for viewing with a web browser and features Hyperlinked Indexes > and Message Navigation. The .txt file includes the plain ASCII version > of the Rocket-List Digest and can be viewed with a generic text editor > such as Notepad or with a web browser. > > HTML Version: > > > http://www.matronics.com/digest/rocket-list/Digest.Rocket-List.2006-06-16.html > > Text Version: > > > http://www.matronics.com/digest/rocket-list/Digest.Rocket-List.2006-06-16.txt > > > =============================================== > EMail Version of Today's List Digest Archive > =============================================== > > > ---------------------------------------------------------- > Rocket-List Digest Archive > --- > Total Messages Posted Fri 06/16/06: 3 > ---------------------------------------------------------- > > > Today's Message Index: > ---------------------- > > 1. 01:07 AM - UMA 1 1/4" instruments (Phil Ayrton) > 2. 06:47 AM - () > 3. 07:53 AM - Re: UMA 1 1/4" instruments (Ron Carter) > > > ________________________________ Message 1 > _____________________________________ > > > Time: 01:07:11 AM PST US > From: "Phil Ayrton" > Subject: Rocket-List: UMA 1 1/4" instruments > > I have just completed an RV-4 180hp project, and have used some of the > small UMA 1 1/4" instruments (oil pressure, oil temperature and fuel > pressure) to help save space on the small RV-4 panel. They look great, > but I have a problem with them during flight. I am getting wildly > erratic readings while flying. My oil pressure gauge sometimes reads > 80-90psi, then will drop to zero, and often sits at zero while flying > after showing a sensible reading at start up and run up, and it often > flickers inflight. The low pressure light has not come on and the > engine has always remained operational, also my oil temp gauge initially > appears to operate as expected then runs up to the 300 deg F peg, then > back to 250, back to 300 for a minute or more. After aborting these > flights and returning to base under partial power the engine shows no > sign of damage or overheating. I have just ordered a new oil temp > probe and oil pressure sensor from Aircraft Spruce to take away any > suspicion of incorrect sensors, but I think I may have an > electrical/wiring problem. There was no wiring diagram in the box when > these arrived from Spruce and so far my email to UMA remains unanswered. > I notice some of the Rocket photos show these gauges. > Can anyone provide information on these gauges, their reliability and > performance during flight. Any other suggestions regarding wiring > checks would also be greatly appreciated. > > Philip Ayrton > Australia > > ________________________________ Message 2 > _____________________________________ > > > Time: 06:47:43 AM PST US > From: > Subject: Rocket-List: > > --> Rocket-List message posted by: > > Your engine gauges HAVE to be grounded to the engine > itself. Not the instrument panel or anywhere inside the > plane. > It can change the readings drastically. > Might be the cause. > > do not archive > > > ________________________________ Message 3 > _____________________________________ > > > Time: 07:53:31 AM PST US > From: "Ron Carter" > Subject: Re: Rocket-List: UMA 1 1/4" instruments > > I have a UMA fuel pressure gauge. It bounces quite a bit,+ - 12 psi > sometimes. Then other times it is totally stable. I have tried three of > them over the years with pretty much the same result for all of them. > > Ron Carter, HR2 > ----- Original Message ----- > From: Phil Ayrton > To: rocket-list@matronics.com > Sent: Friday, June 16, 2006 2:03 AM > Subject: Rocket-List: UMA 1 1/4" instruments > > > I have just completed an RV-4 180hp project, and have used some of the > small UMA 1 1/4" instruments (oil pressure, oil temperature and fuel > pressure) to help save space on the small RV-4 panel. They look great, > but I have a problem with them during flight. I am getting wildly > erratic readings while flying. My oil pressure gauge sometimes reads > 80-90psi, then will drop to zero, and often sits at zero while flying > after showing a sensible reading at start up and run up, and it often > flickers inflight. The low pressure light has not come on and the > engine has always remained operational, also my oil temp gauge initially > appears to operate as expected then runs up to the 300 deg F peg, then > back to 250, back to 300 for a minute or more. After aborting these > flights and returning to base under partial power the engine shows no > sign of damage or overheating. I have just ordered a new oil temp > probe and oil pressure sensor from Aircraft Spruce to take away any > suspicion of incorrect sensors, but I think I may have an > electrical/wiring problem. There was no wiring diagram in the box when > these arrived from Spruce and so far my email to UMA remains unanswered. > I notice some of the Rocket photos show these gauges. > Can anyone provide information on these gauges, their reliability and > performance during flight. Any other suggestions regarding wiring > checks would also be greatly appreciated. > > Philip Ayrton > Australia > > >