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		airman(at)appledumplings. Guest
 
 
 
 
 
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				 Posted: Sun Jun 11, 2006 6:17 am    Post subject: High Oil Temps | 
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				Ok I went flying yesterday and the Oil temp climbed up to around 230  
 again.
 When just flying around in the airport area a few days before the  
 temp stayed at 180-190. But I only flew for 20-30 min.
 
 So Yesterday I flew around for about an hour. At first the temps  
 stayed down but then they started to get up to 210-220 range.
 I stopped and got some fuel. On my way back to my airport I noticed  
 that the temps went up.  I was in cruise and I went to full rich to  
 see if that would help and then i tried reducing power.  It steadiy  
 increased. I think it may have have gone as high as 235 but was able  
 to get it to stabilize around 230.
 
 I previously  did some sealing on the baffle seals near the oil  
 cooler and on both sides between the cylinders.  Does anyone have  
 pictures of what the baffle/baffle seals should look . I am also  
 considering redoing all the baffling and baffle seals ... are there  
 kits?They dont look that great to my untrained eyes. What are the  
 thoughts on oil coolers?
 I know there are high dollar changes such as new cowlings and cowling  
 mods but I think i should be able to get a handle with the stock  
 config also(at least reasonable temps) ... with maybe a stcd oil cooler.
 
 Thanks
 
 Thomas  74225  D73
 
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		flyv35b(at)ashcreekwirele Guest
 
 
 
 
 
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				 Posted: Sun Jun 11, 2006 6:51 am    Post subject: High Oil Temps | 
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				 	  | Quote: | 	 		   Ok I went flying yesterday and the Oil temp climbed up to around 230 
  again.
  When just flying around in the airport area a few days before the  temp 
  stayed at 180-190. But I only flew for 20-30 min.
 
  So Yesterday I flew around for about an hour. At first the temps  stayed 
  down but then they started to get up to 210-220 range.
  I stopped and got some fuel. On my way back to my airport I noticed  that 
  the temps went up.  I was in cruise and I went to full rich to  see if 
  that would help and then i tried reducing power.  It steadiy  increased. I 
  think it may have have gone as high as 235 but was able  to get it to 
  stabilize around 230.
 
  I previously  did some sealing on the baffle seals near the oil  cooler 
  and on both sides between the cylinders.  Does anyone have  pictures of 
  what the baffle/baffle seals should look . I am also  considering redoing 
  all the baffling and baffle seals ... are there  kits?They dont look that 
  great to my untrained eyes. What are the  thoughts on oil coolers?
  I know there are high dollar changes such as new cowlings and cowling 
  mods but I think i should be able to get a handle with the stock  config 
  also(at least reasonable temps) ... with maybe a stcd oil cooler.
 
 | 	  
 First off let me say it is very helpful if when you post a question or 
 comment to say 1) what model of Grumman you have and 2) what engine it has, 
 especially if is not stock or is modified in any way.  This has an important 
 bearing on how the question is answered instead of trying to guess what the 
 configuration is.  This applies even if you have previously stated this as 
 some time may have elapsed and people forget. Heaven forbid!
 
 One thing that jumps out is your comment about stopping for gas and then the 
 oil temp climbed higher on the next leg of the flight.  This is exactly what 
 I would expect it to do.  The engine sits on the ramp and heat soaks when 
 you are stopped and then when climbing out at low airspeed it increases even 
 further.  If you have a 2 place with the O-235-C2C engine it is pretty 
 normal for the oil temp to run up near the redline on climb anytime the 
 ambient is high.  Also, how was it outside when you were flying?  If you 
 have a Tiger or Cheetah the oil temp will usually not run over 200F unless 
 you have the HC engine conversion on the Cheetah and the stock cooler.  A 
 larger Tiger cooler can be installed on a Cheetah.
 
 Also, running rich or lean will not have very much impact on oil temperature 
 as it can on cylinder head temperature.  Obviously, running with hotter 
 cylinders will heat the oil up a bit more in time.  But it does take some 
 time for the oil to react..  The front baffle seals on a Cheetah and Tiger 
 that are hidden inside the nose bowl are every bit as important as the ones 
 you can see on the side and rear of the engine.  The Cheetah is even harder 
 to seal than the Tiger because of the jogs around the NACA air inlet duct.
 
 Cliff  A&P/IA
 
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		airman(at)appledumplings. Guest
 
 
 
 
 
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				 Posted: Mon Jun 12, 2006 5:42 am    Post subject: High Oil Temps | 
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				//First off let me say it is very helpful if when you post a question or
 //comment to say 1) what model of Grumman you have and 2) what engine  
 it has,
 //especially if is not stock or is modified in any way.
 
 Sorry,
 I have a 76 tiger O-360-a4k.    Although in the last post I did say  
 that the temps went up after a fuel stop. I originally saw the  
 problem on  a longer trip with no stops.   I guess I just need to see  
 what a tiger in good shape looks like under the cowling. Is there a  
 site out there that has good pics of the baffle and baffle seals?  
 Also is there anywhere to but a baffle kit?
 
 The temps were around 86F outside.
 
 I have had the airplane for 2 months and have flown about 12  
 hours ... the problem seems to have come up in the last few hours.
 in those 12 hours i have burned 1.5 quarts of oil. So this may be a  
 contributer that has uncovered the problem. It now has 6.25 quarts.
 I have had a few different CFI's in the plane as well as a grumman  
 pfp cfi. And none of them noticed the higher temps so I dont think  
 that i just didnt notice it earlier on(although the days were a bit  
 cooler then).
 
 Thanks Much for inputs
 
 Thomas  74225 D73
 
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		flyv35b(at)ashcreekwirele Guest
 
 
 
 
 
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				 Posted: Mon Jun 12, 2006 6:24 am    Post subject: High Oil Temps | 
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				My comment would be to first check your oil temperature gauge per the 
 maintenance manual.  You should buy one if you don't already have one.  If 
 the gauge is accurate then there is something amiss as Tigers typically 
 don't run over 200 F, even with 90 F ambient temps.  Also, 8 hr/qt is not 
 all that high oil consumption and not abnormal.  Have you checked your 
 engine compression lately?  Your baffling could be a significant contributor 
 but not to a recent sudden jump up in oil temperature.  You could have a 
 defective vernatherm valve that is bypassing oil around the cooler or 
 possible excessive piston ring blow by gasses that are heating up the oil.
 
 Gary Vogt has some photos of baffling on his web site I believe 
 (www.AuCountry.com).
 
 Cliff  A&P/IA
 ---
 
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		GrummanDude
 
 
  Joined: 15 Jan 2006 Posts: 926 Location: Auburn, CA
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				 Posted: Mon Jun 12, 2006 9:03 pm    Post subject: High Oil Temps | 
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				74225 is a 76 Tiger.
  
  OK, some questions.   
  
  1. Are your cooling exit ramps deteriorated and sagging?
  
  2. What do your baffles look like?   Look inside your air inlet and look to see how the baffle seal seals around the edges.
  
  3.   How old are your oil cooler hoses?   Were they professionaly made?   Do they have date tags on them?
  
  4.   Do you have a spin-on oil filter.   If so, is it a recent install?   or has it been on a while?   It is possible the Vernitherm is not sealing/opening correctly.   You should see an even imprint on the mating surface.
 
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AuCountry Aviation
 
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		GrummanDude
 
 
  Joined: 15 Jan 2006 Posts: 926 Location: Auburn, CA
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				 Posted: Mon Jun 12, 2006 9:38 pm    Post subject: High Oil Temps | 
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				In a message dated 6/12/06 6:47:38 AM, airman(at)appledumplings.com writes:
  
  
   	  | Quote: | 	 		  Is there a 
  site out there that has good pics of the baffle and baffle seals? 
  Also is there anywhere to but a baffle kit?
   | 	  
  
  go to my web site,   www.AuCountry.com
  
  click on TeamGrumman
  
  Click on Restoration ....
  
  Scan down and look for Baffle Installation.
 
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  _________________ Gary
 
AuCountry Aviation
 
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		FLYaDIVE(at)aol.com Guest
 
 
 
 
 
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				 Posted: Tue Jun 13, 2006 2:13 am    Post subject: High Oil Temps | 
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				In a message dated 6/12/2006 9:47:38 AM Eastern Standard Time, airman(at)appledumplings.com writes:
   	  | Quote: | 	 		  The temps were around 86F outside.
 
 I have had the airplane for 2 months and have flown about 12  
 hours ... the problem seems to have come up in the last few hours.
 in those 12 hours i have burned 1.5 quarts of oil. So this may be a  
 contributer that has uncovered the problem. It now has 6.25 quarts.
 I have had a few different CFI's in the plane as well as a grumman  
 pfp cfi. And none of them noticed the higher temps so I dont think  
 that i just didnt notice it earlier on(although the days were a bit  
 cooler then).
 
 Thanks Much for inputs
 
 Thomas  74225 D73 | 	  
  ==============================================
  Thomas:
   
  The oil usage is quite within the operating range.  If I add 6.25 + 1.5 = 7.75 Quarts ... That is a FULL load ... You should let the oil try to stabilize, let it get down to 5.5 to 6.5 quarts and see what the oil consumption is.  Many times when the oil is above 6 quarts and especially around 8 quarts the engine just pumps the excess oil over board.  Check your breather tube it should NOT be sticking out of the cowl more than 1.25".  I find 1" works well.
   
  Look at ALL your baffling or have someone with experience look at it.  As an owner you will become very familiar with what good baffling should look like since it is the major concern for cooling.  Have you flown the plane since the last time and have you noticed the oil temps?
   
  I once noticed a plane that sat for a few months.  It was started, taxied and had a run-up.  The oil temps jumped up to the high 200's during climb out and for a short time in S&L.  Then just as quickly dropped back down to the normal range of 180 - 190 F.
  I attributed this to maybe two things:
  1 - Dry metal inside the engine (the oil did not work its way to ALL the metal to metal contact areas) and
  2 - Maybe a stuck Vernatherm.
   
  So lets hear what the latest findings are.
   
   
   
  Barry
 "Chop'd Liver"
 
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		GrummanDude
 
 
  Joined: 15 Jan 2006 Posts: 926 Location: Auburn, CA
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				 Posted: Tue Jun 13, 2006 10:52 am    Post subject: High Oil Temps | 
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				In a message dated 6/13/06 7:10:51 AM, flyv35b(at)ashcreekwireless.com writes:
  
   	  | Quote: | 	 		  > If you do need to go with new baffles-you might enjoy seeing what a great
  > start the RV   aircarft baffle can afford!
  
  Absolutely.  But they are very labor intensive to modify and install the
  front baffle ramps/seals and the seal behind the flywheel on a 2 place
  aircraft.  I must have about 60 hr of labor (or more) to install the
  complete set!  But the result is the best baffling I have ever seen on any
  Grumman.  It might even be possible to tailor or custom fit this type of
  baffling to a Cheetah and Tiger and eliminate the entire forward baffling!
  Wouldn't that be nice!
  
   | 	  
  
  I recently had the pleasure (sic) of spending an afternoon with the FAA and a DER.  The subject was my favorite topic, engine cooling.  Here is what I was asked and what I was told.
  
  Question:  Did you change the airflow in the lower cowling?
  Answer: (note: I tried to dodge the real question as long as possible)  No, I still have approximately the same pressure drop across the cylinders.
  Question:  Approximately.  So, the airflow in the lower cowling WAS changed?
  Answer: Honestly, I don't know.  (actually, this dialog went on for an hour or so with questions pointed toward the fact that it cools better.)
  
  the next round of Q&A went like this.
  
  Question: If you are cooling better, then that means the air in the lower cowling is warmer, is that correct.
  Answer:  I guess.
  Response:  Then we'll need a complete searies of tests with ALL of the accessories instrumented to determine that they are not overheating.
  
  Comment (me):  Am I to understand that if I do anything to improve the cooling over what was done at the factory, then I've changed the airflow through the cowling, and that requires complete testing of the temps in the lower cowling?
  Answer (FAA):  Yes.
  Comment (me):  Even on a stock cowling?  What if I trim a baffle and it makes the CHTs more even (lower differential between cylinders) and better cooling, then, that is a major modification to the cooling which affects temps in the lower cowling and that requires complete testing by the FAA?
  Answer (FAA):  Yes.
  
  Question (me):  What if the original baffles are no longer available, can I make new baffles?
  Answer (FAA):  Yes.  But, they must be exact duplicates.  And, you can't make them to sell to anyone else without an STC? 
  Question (me):  STC?  Why can't I get a PMA to reproduce the parts.
  Answer (FAA):  Because the drawings are not owned by you.
  
  This went on for 4 hours.  They (the FAA) are not concerned with improving anything.  They are only concerned with keeping everything exactly as it was when the plane was made; even if it was never designed correctly in the first place, the installation was done poorly and there is a better way to do it 30 years later.  Unless someone issues an AD.
  
  The bottom line is, the labor intensive installation of the RV baffle kit is only a fraction of the agony points required to improve the cooling on a Grumman.
  
  What's wrong with this picture?
 
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AuCountry Aviation
 
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		bruce.smith(at)york.com Guest
 
 
 
 
 
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				 Posted: Tue Jun 13, 2006 11:18 am    Post subject: High Oil Temps | 
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				Gary,
 
 This would be funny, if it weren't real life with the FAA. The thing I 
 take from this is that the FAA isn't interested in safer either. Just 
 the same.
 
 A kit plane is starting to look really good.
 
 Bruce Smith
 
 TeamGrumman(at)aol.com said the following on 6/13/2006 2:49 PM:
  	  | Quote: | 	 		   In a message dated 6/13/06 7:10:51 AM, flyv35b(at)ashcreekwireless.com 
  writes:
 
 > > If you do need to go with new baffles-you might enjoy seeing what a 
 > great
 > > start the RV   aircarft baffle can afford!
 >
 > Absolutely.  But they are very labor intensive to modify and install the
 > front baffle ramps/seals and the seal behind the flywheel on a 2 place
 > aircraft.  I must have about 60 hr of labor (or more) to install the
 > complete set!  But the result is the best baffling I have ever seen 
 > on any
 > Grumman.  It might even be possible to tailor or custom fit this type of
 > baffling to a Cheetah and Tiger and eliminate the entire forward 
 > baffling!
 > Wouldn't that be nice!
 >
  I recently had the pleasure (sic) of spending an afternoon with the 
  FAA and a DER.  The subject was my favorite topic, engine cooling.  
  Here is what I was asked and what I was told.
 
  Question:  Did you change the airflow in the lower cowling?
  Answer: (note: I tried to dodge the real question as long as 
  possible)  No, I still have approximately the same pressure drop 
  across the cylinders.
  Question:  Approximately.  So, the airflow in the lower cowling WAS 
  changed?
  Answer: Honestly, I don't know.  (actually, this dialog went on for an 
  hour or so with questions pointed toward the fact that it cools better.)
 
  the next round of Q&A went like this.
 
  Question: If you are cooling better, then that means the air in the 
  lower cowling is warmer, is that correct.
  Answer:  I guess.
  Response:  Then we'll need a complete searies of tests with ALL of the 
  accessories instrumented to determine that they are not overheating.
 
  Comment (me):  Am I to understand that if I do anything to improve the 
  cooling over what was done at the factory, then I've changed the 
  airflow through the cowling, and that requires complete testing of the 
  temps in the lower cowling?
  Answer (FAA):  Yes.
  Comment (me):  Even on a stock cowling?  What if I trim a baffle and 
  it makes the CHTs more even (lower differential between cylinders) and 
  better cooling, then, that is a major modification to the cooling 
  which affects temps in the lower cowling and that requires complete 
  testing by the FAA?
  Answer (FAA):  Yes.
 
  Question (me):  What if the original baffles are no longer available, 
  can I make new baffles?
  Answer (FAA):  Yes.  But, they must be exact duplicates.  And, you 
  can't make them to sell to anyone else without an STC? 
  Question (me):  STC?  Why can't I get a PMA to reproduce the parts.
  Answer (FAA):  Because the drawings are not owned by you.
 
  This went on for 4 hours.  They (the FAA) are not concerned with 
  improving anything.  They are only concerned with keeping everything 
  exactly as it was when the plane was made; even if it was never 
  designed correctly in the first place, the installation was done 
  poorly and there is a better way to do it 30 years later.  Unless 
  someone issues an AD.
 
  The bottom line is, the labor intensive installation of the RV baffle 
  kit is only a fraction of the agony points required to improve the 
  cooling on a Grumman.
 
  What's wrong with this picture?
 
 | 	 
 
 
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		flyv35b(at)ashcreekwirele Guest
 
 
 
 
 
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				 Posted: Tue Jun 13, 2006 11:19 am    Post subject: High Oil Temps | 
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				All I have to say is this is very  sad!  And your conversation with the FAA shows how inflexible they are and  how little common sense there is and why so many people are gravitating to  experimental aircraft.  Not to mention that they are just better in many  ways, even though they don't have the FAA's blessing and haven't been tested as  extensively.
   
  Cliff
  [quote]   ---
 
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		bruce.smith(at)york.com Guest
 
 
 
 
 
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				 Posted: Tue Jun 13, 2006 11:19 am    Post subject: High Oil Temps | 
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				Gary,
 
 One other thing. Let me surmise that the FAA types said this with 
 serious looks on their faces. Right?
 
 Bruce
 
 TeamGrumman(at)aol.com said the following on 6/13/2006 2:49 PM:
  	  | Quote: | 	 		   In a message dated 6/13/06 7:10:51 AM, flyv35b(at)ashcreekwireless.com 
  writes:
 
 > > If you do need to go with new baffles-you might enjoy seeing what a 
 > great
 > > start the RV   aircarft baffle can afford!
 >
 > Absolutely.  But they are very labor intensive to modify and install the
 > front baffle ramps/seals and the seal behind the flywheel on a 2 place
 > aircraft.  I must have about 60 hr of labor (or more) to install the
 > complete set!  But the result is the best baffling I have ever seen 
 > on any
 > Grumman.  It might even be possible to tailor or custom fit this type of
 > baffling to a Cheetah and Tiger and eliminate the entire forward 
 > baffling!
 > Wouldn't that be nice!
 >
  I recently had the pleasure (sic) of spending an afternoon with the 
  FAA and a DER.  The subject was my favorite topic, engine cooling.  
  Here is what I was asked and what I was told.
 
  Question:  Did you change the airflow in the lower cowling?
  Answer: (note: I tried to dodge the real question as long as 
  possible)  No, I still have approximately the same pressure drop 
  across the cylinders.
  Question:  Approximately.  So, the airflow in the lower cowling WAS 
  changed?
  Answer: Honestly, I don't know.  (actually, this dialog went on for an 
  hour or so with questions pointed toward the fact that it cools better.)
 
  the next round of Q&A went like this.
 
  Question: If you are cooling better, then that means the air in the 
  lower cowling is warmer, is that correct.
  Answer:  I guess.
  Response:  Then we'll need a complete searies of tests with ALL of the 
  accessories instrumented to determine that they are not overheating.
 
  Comment (me):  Am I to understand that if I do anything to improve the 
  cooling over what was done at the factory, then I've changed the 
  airflow through the cowling, and that requires complete testing of the 
  temps in the lower cowling?
  Answer (FAA):  Yes.
  Comment (me):  Even on a stock cowling?  What if I trim a baffle and 
  it makes the CHTs more even (lower differential between cylinders) and 
  better cooling, then, that is a major modification to the cooling 
  which affects temps in the lower cowling and that requires complete 
  testing by the FAA?
  Answer (FAA):  Yes.
 
  Question (me):  What if the original baffles are no longer available, 
  can I make new baffles?
  Answer (FAA):  Yes.  But, they must be exact duplicates.  And, you 
  can't make them to sell to anyone else without an STC? 
  Question (me):  STC?  Why can't I get a PMA to reproduce the parts.
  Answer (FAA):  Because the drawings are not owned by you.
 
  This went on for 4 hours.  They (the FAA) are not concerned with 
  improving anything.  They are only concerned with keeping everything 
  exactly as it was when the plane was made; even if it was never 
  designed correctly in the first place, the installation was done 
  poorly and there is a better way to do it 30 years later.  Unless 
  someone issues an AD.
 
  The bottom line is, the labor intensive installation of the RV baffle 
  kit is only a fraction of the agony points required to improve the 
  cooling on a Grumman.
 
  What's wrong with this picture?
 
 | 	 
 
 
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		GrummanDude
 
 
  Joined: 15 Jan 2006 Posts: 926 Location: Auburn, CA
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				 Posted: Wed Jun 14, 2006 12:13 am    Post subject: High Oil Temps | 
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				In a message dated 6/13/06 8:26:34 PM, bruce.smith(at)york.com writes:
  
  
   	  | Quote: | 	 		  Gary,
  
  One other thing. Let me surmise that the FAA types said this with
  serious looks on their faces. Right?
  
  Bruce
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  Dead serious
 
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  _________________ Gary
 
AuCountry Aviation
 
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		GrummanDude
 
 
  Joined: 15 Jan 2006 Posts: 926 Location: Auburn, CA
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				 Posted: Wed Jun 14, 2006 12:30 am    Post subject: High Oil Temps | 
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				In a message dated 6/13/06 8:26:59 PM, flyv35b(at)ashcreekwireless.com writes:
  
   	  | Quote: | 	 		  Not to mention that they are just better in many ways, even though they don't have the FAA's blessing and haven't been tested as extensively.
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  I'm going to have to disagree on this one.   Certified planes aren't tested nearly as thoroughly as experimental airplanes.   I can safely say there was no testing done to optimise the engine cooling on the Tiger, Cheetah, etc, (or most any other plane).   
  
  Case in point:   Miley et al, in 1977, did a fine piece of experimental research at Mississippi State regarding cooling inlet design.   Look at any new certified plane.   With few exceptions, no one has incorporated any of the results of that work.   All they do is copy what was done before.   
  
  The FAA would like you to believe a lot of testing was done.   If that were the case, why are there so many new ADs on the new 172s?   Didn't Cessna work out all the bugs in the 40 to 50 years they built planes prior to the new Cessna?   
  
  I think experimental built airplanes are made and tested a lot more just to compete with certified planes.   If an experimental plane crashes, the FAAs response is, "See, experimentals are unsafe.   We should require certification for all planes."   
  
  PS, how many hours of experimenting do you think were spent optimizing the LoPresti nose bowl?   My guess is, none.   Round inlets were added to replace square inlets because everyone thought there was something magic about round inlets.   The baffle seals on round inlets don't seal as well as they do on the stock square inlets.   A lot of attention to detail is required to even come close to sealing the upper deck on a LoPresti nose bowl when compared to a stock nose bowl.
 
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		flyv35b(at)ashcreekwirele Guest
 
 
 
 
 
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				 Posted: Wed Jun 14, 2006 6:04 am    Post subject: High Oil Temps | 
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				Gary,  
   
  I pretty much agree  with  everything that you have said here.  But I think you misunderstood what I  meant about testing.  The certified aircraft have been pretty thoroughly  tested, but that doesn't mean the design or performance has been developed,  optimized or even refined.  It just means they met some FAA standard.   For instance, the cooling probably only has to not exceed 500 F at a Vy climb at  100 F ambient.  Which is not the same thing as saying it is a good cooling  system or can't be improved upon.  Far from it.
   
  And yes, there is a lot of  copying going on, even copying mistakes!  But also, you can't lump all  experimentals into one category when you imply that they are tested more or  better designed or developed.  There are quite a few experimentals  that are not well thought out or constructed.  The more well know ones like  Van's RV's and the Lancairs are well designed and very thoroughly tested and  refined, probably even more than certified aircraft except for the FAR Part 23  fatigue testing.  In the case of the RV's they have achieved the same level  of confidence with the thousands of aircraft flying hundreds of thousands of  hours.
   
  I don't think they are trying to  just compete with the certified aircraft, but rather take the performance,  efficiency and affordability to a whole new level.  And this includes  some pretty sophisticated avionics and autopilots that are far cheaper that  anything certified for use in certified aircraft.  I think right now about  10% of the fleet is experimental aircraft.  In 10 years it could be  20%.  That's where things are headed, especially if the FAA  tightens the noose with their ideas about aging aircraft safety, or lack  thereof.  
   
  And if you were developing a new  cowling for an experimental aircraft you wouldn't be having to prove to the FAA  that the magneto, fuel pump and vacuum pump case temperatures were higher or  lower than before you improved the cylinder cooling!
   
  Cliff   A&P/IA
  [quote]   ---
 
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		GrummanDude
 
 
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				 Posted: Thu Jun 15, 2006 12:42 am    Post subject: High Oil Temps | 
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				In a message dated 6/14/06 7:06:18 AM, flyv35b(at)ashcreekwireless.com writes:
  
  
   	  | Quote: | 	 		  There are quite a few experimentals that are not well thought out or constructed. 
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  OK, true enough.   There is one experimental at Fox field that no one will even try a high speed taxi with.   
  
  When I think of experimentals, I think of RVs, Lancairs, etc. 
 
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		FLYaDIVE(at)AOL.COM Guest
 
 
 
 
 
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				 Posted: Thu Jun 15, 2006 1:28 am    Post subject: High Oil Temps | 
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				In a message dated 6/15/2006 4:44:28 AM Eastern Standard Time, TeamGrumman(at)aol.com writes:
   	  | Quote: | 	 		    	  | Quote: | 	 		  There are quite a few experimentals that are not well thought out or constructed. 
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 OK, true enough.  There is one experimental at Fox field that no one will even try a high speed taxi with.  
 
 When I think of experimentals, I think of RVs, Lancairs, etc.  | 	  
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  When talking experimental it is difficult not to consider the quality of the building.  Just because it is an RV does not mean it fly's like an RV.  And when you talk about "not well thought out", you MUST put Grumman's under that classification as well.
   
   
  Barry
 "Chop'd Liver"
 
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