Fri May 15, 2015 10:02 pm
David Billings wrote:Why do I think she saw one of the Gilbert Islands ? Because of a signal found by Fred Goerner in a USN File he examined where Nauru Radio heard "Land in sight ahead" on 6210Kcs at 1030 Local on the ITASCA (2200GMT 2nd July). Goerner wrote of this find in his book "The Search for Amelia Earhart " 1st Edition. It is on Page 267 or thereabouts.
Sat May 16, 2015 2:02 am
eljefe wrote:Welcome back, Mr. Billings. The point quoted above is one I wish to inquire about. Is there any evidence that Fred Goerner actually found this signal in the records? And why has no one else ever seen it since? The "Japanese prisoner" theorists seize on the supposed disappearance of the message as proof of a government cover-up of her fate. Yet the similarity of this message to one reportedly overheard at Nauru wherein Amelia stated "A ship in sight ahead" on her trip to Howland (at 1030 PM or 1030 Greenwich time depending on the source) seems an awfully big coincidence. Isn't it more likely that Goerner saw this record from Nauru and misremembered what he'd read? And this is why he could not locate the reference upon later review of the records? He apparently had sufficient doubts about his memory that the subject was removed from the 2nd edition of his book. Therefore, it seems doubtful it ever existed in the first place.
Sat May 16, 2015 8:19 am
Sat May 16, 2015 8:57 am
Sat May 16, 2015 9:13 am
David Billings wrote:In a written passage "somewhere", maybe of an interview he gave..... Goerner did say he had seen it , why otherwise would he write it, but he did recall mentioning to the clerical person who had control of the file when he did read it; that it seemed a duplication of that 1030GMT call you have referred to. He later realised it was not and went back to see it again but possibly because of his remark, it had been pulled and he could not see it again.
Sat May 16, 2015 8:15 pm
Sun May 17, 2015 7:36 am
gary217 wrote:I put on my website flight navigation manuals that describe the computation of the "'point of no return"' which is how to evaluate the possibility of a return to New Britain along with a description of the process at:
https://sites.google.com/site/fredienoonan/discussions/amelia-earhart-s-point-of-no-return
Go to my website for a complete description where you will find enough information for you to do the calculation for yourself, you don't have to take my word for it.
Here is just an excerpt:
=======================================================
"'We have now looked at one simple example of the “point of no return” so this would be a good point to do some
more computations. There is also a theory that Earhart made it back to the island of New Britain and a point of no
return calculation may help in an analysis of this theory.
The PNR is a simple case of the “radius of action” calculation. These calculations determine how
far away you can fly and still make it back within the endurance of the aircraft. If you go beyond
the PNR or the “radius of action” then you can’t make it back to the departure airport, that’s why
it is called the “point of no return.”
Navy pilots flying off of aircraft carriers have to do a more complicated radius of action
calculation because if they just make it back to the point where they took off from, there won’t be
an airport there, the carrier has moved on. It should be obvious that if the carrier is steaming in
the opposite direction from the plane's outbound course that the plane will have to turn around
sooner to go back and chase after the carrier.
The way this “radius of action from a moving base” calculation is done is by drawing a vector
diagram including the normal wind vector and then adding a vector to represent the speed and
course of the carrier. Then the radius of action (PNR) calculation is done with the combined
effect of these two vectors. Conceptually, the calculation is done based on the wind that would
have been measured by the moving carrier.
We can use the “radius of action from a moving base” computation to look at the case of the
plane departing from Lae and returning to New Britain. We do this by using a “fictitious aircraft
carrier.” The east end of New Britain is 344 NM east of Lae on the course line to Howland. If a
fictitious carrier departed Lae at the same time as Earhart, steaming towards Howland, it would
have arrived at the east end of New Britain at the end of 20:13 (the proven endurance of the
plane) by steaming at 17 knots. Fortunately, the required vector diagram is as simple as it could
be since the plane and the ship were heading directly into the 23 knot headwind measured by
Noonan. So the fictitious carrier would have measured a direct headwind of 40 knots. We use
this 40 knot value instead of the true wind of 23 knots to do the calculation for the PNR for a
return to New Britain.
Doing the calculation:
TAS = 130 K (2 x TAS = 260 K)
Speed of relative movement out = 90 knots.
(The plane is moving away from the fictitious carrier at only 90 knots because the carrier is
chasing after the plane.)
Speed of relative movement return = 170 knots (130 K + 40 K)
PNR time = (20:13 x 170 K)/260
PNR time = 13:13
Multiplied by the speed of relative movement out of 90 K places the plane 1190 NM from the
fictitious carrier. But since the real ground speed was 107 K it would be 1414 NM from Lae.
This is 141 NM further and 1:19 later than in our first computation of PNR for a return to Lae.
To check our math we can subtract this 13:13 from the endurance of 20:13 giving us 7:00 hours
to return to New Britain. Seven hours multiplied by the actual return ground speed of 153 knots
means the plane will travel 1071 NM back towards Lae. Since it would be starting 1414 NM
from Lae it will end up 344 NM east of Lae at the eastern end of New Britain, just as we expected.
Doing the same computation using an endurance of 24 hours we use a slightly slower speed for
the fictitious carrier since it now has 24 hours to travel the 344 NM resulting in a fictitious speed
of 14.3 K and a relative wind of 37.3 K. The PNR for New Britain then occurs at 15:26 Z, 1653
NM from Lae. This is 1:19 later and 142 NM further from Lae than the similar calculation for the
return to Lae. So even using a 24 hour endurance and a planned return to New Britain, the
decision to turn around would have had to have been made prior to passing the Gilberts. Since
we know the plane went past this PNR and proceeded for at least 4:47 further, to the vicinity of
Howland, it would not have been possible for the plane to make it back to New Britain even with
a 24 hour endurance.
...
The second thing we can determine from these calculations is that they also could not return to New Britain from the vicinity of Howland thus making that theory very unlikely.
I have attached two charts depicting the PNRs I discussed in the two prior posts.
A and B are for a return to Lae and C and D are for return to New Britain.
PNR "A" is the first case, 20:13 fuel on board, time at PNR 1154 Z, 1273 NM from Lae and 949 NM short of Howland.
PNR "B" is 24 hours of fuel on board, time at PNR 1407 Z, 1511 NM from Lae and 711 NM short of Howland.
PNR "C" is 20:13 hours of fuel on board, time at PNR 1313 Z, 1414 NM from Lae and 809 NM short of Howland.
PNR "D" is 24 hours of fuel on board, time at PNR 1526 Z, 1653 NM from Lae and 569 NM short of Howland and only 50 NM short of the Gilberts."
See charts at:
PNR chart 1
PNR chart 2
gl
Sun May 17, 2015 7:40 am
eljefe wrote:David Billings wrote:In a written passage "somewhere", maybe of an interview he gave..... Goerner did say he had seen it , why otherwise would he write it, but he did recall mentioning to the clerical person who had control of the file when he did read it; that it seemed a duplication of that 1030GMT call you have referred to. He later realised it was not and went back to see it again but possibly because of his remark, it had been pulled and he could not see it again.
Since no one else ever reported seeing this message, is it more likely that it was removed, lost, destroyed, etc. or that it simply did not exist in the first place? Why did Goerner remove it from the book? If he was truly convinced, you'd think he'd trumpet the missing message as proof of the vast conspiracy rather than simply delete the passage from the book.
I don't really see this issue as a requirement for the ENB theory. If the message did not exist, it does not invalidate the possibility of Earhart crashing in the jungle near Rabaul. However, there is so much uncertainty around the signal's existence that I do not see how its contents can be accepted as established fact. There ought to be warnings to the reader indicating this uncertainty when using the message as evidence supporting the theory.
Sun May 17, 2015 8:02 am
David Billings wrote:
I just wrote a whole post and lost it during the "submit" stage.... so here goes again....
"
David Billings wrote:Goerner and S3H1 Engines
I just wrote a whole post and lost it during the "submit" stage.... so here goes again....
For Pinecastle: 45 Miles from VUNAKANAU, the nearest airfield on 1937
For Eljefe: You are granted my personal permission to erase Goerner's passage in the book, from your memory cells.
I have explained (valiantly) why this call cannot be confused with the 1030GMT Call heard when the Electra was in the vicinity of the USCG ONTARIO during the nightflying stage of the Flight LAE-HOW.. Goerner wrote it in his book, that is not disputed and it does tie-in with a turnback by a crew who could not find a destination and who invoked a Contingency Plan. Seeing land ahead totally unexpectedly and much earlier than calculated, must have been a supreme revelation of what for them "had gone wrong". What to do ?
Crashland now on that land ahead and possibly cause fatal injuries with no medical assistance ? Or proceed at a pace which will ensure "endurance" with the possibility of a landfall off to the right in OCEAN Island or NAURU and NUKUMANU Atoll is within range even with 150 USG in tanks at the low power setting she had previously experienced on the SFO-HI flight in March. I now expect some wag will say that Earhart couldn't possibly remember that......
S3H1 Engines:
It is correct that the obliteration of Goerner's passage in the book makes no difference to the fact that an all-metal-unpainted aircraft with two-S3H1-civilian designated engines-with nil military insignia lies on a hillside in East New Britain and was seen in 1945 by an Australian Patrol.
I have tried to find out if any other S3H1 "civilian designated" engines were ever in New Guinea prior to WWII and during WWII. The Royal Australian Air Force had single-engined Wirraway aircraft powered by the geared version of this engine (S3H1-G) which was licence built in Australia. Most of these were lost when the tourists arrived with fireworks in January 1942. They also had some single-engined fabric covered Noorduyn Norsemen with S3H1's and I would like for some enthusiast to try and tell me those went near to Fortress Rabaul during the years 1942 to 1945.
Two of the Lockheed Electra 10A's did go up to New Guinea during WWII on re-supply runs and the nearest they got to a fighting zone was when resupplying the furious battles at BUNA-GONA-SANANANDA, they do not come into the picture, being powered by R-985's not R-1340's. B-G-S is on the main island of New Guinea, not on New Britain Island.
There is a misconception by many in that they believe that the WASP engines produced in their thousands "must" at some stage have got to New Guinea. Mr. Gillespie thinks so because he says they were "ubiquitous" and we all know he is never wrong. When I spoke to Linda Finch on her arrival in Port Moresby, she told me Wasps were "oll overrr" (my spelling).
Many years ago I contacted the USAF Museum at Wright-Patterson AB and conversed by mail many times with a curator there named David Menard. David was a former USAF F100 Super Sabre Crew Chief with service in VN and an avid aircraft enthusiast. Sadly he left us a year or so ago. David researched the use of the P&W R-1340 S3H1 in military service (USAAC, USAAF, USAF, US Army, USN, USMC, USCG) for me and concluded that none reached New Guinea for most of the "military-in-service" R-1340 S3H1's had been the power for prototype aircraft consisting of biplanes and early monoplane aircraft from the late twenties and early thirties and used for evaluation by the Services prior to orders or production runs.
Clearly the standard R-1340 S3H1 designation was for a "civilian" engine.
The military version of the S3H1 in "Army" use is the "ubiquitous" AN-1 engine and I have not seen any records anywhere of their use in New Guinea before WWII and during WWII. I believe that the USN, USMC and USCG also had their own confusing lettered/numbered designations for this same engine.
The only aircraft with S3H1's that I can find which went anywhere near to New Guinea before the monumental event known as WWII was Earhart's Electra.
If anyone has information of an S3H1 powered twin-engined all-metal aircraft in New Guinea in the years 1937 to 1945 other than Earhart's Electra I surely would like to hear from them.
David Billings
"Must be Noonan's, then..."
Sun May 17, 2015 11:37 am
gari wrote:gary217 wrote:I put on my website flight navigation manuals that describe the computation of the "'point of no return"' which is how to evaluate the possibility of a return to New Britain along with a description of the process at:
https://sites.google.com/site/fredienoonan/discussions/amelia-earhart-s-point-of-no-return
Go to my website for a complete description where you will find enough information for you to do the calculation for yourself, you don't have to take my word for it.
Here is just an excerpt:
=======================================================
"'We have now looked at one simple example of the “point of no return” so this would be a good point to do some
more computations. There is also a theory that Earhart made it back to the island of New Britain and a point of no
return calculation may help in an analysis of this theory.
The PNR is a simple case of the “radius of action” calculation. These calculations determine how
far away you can fly and still make it back within the endurance of the aircraft. If you go beyond
the PNR or the “radius of action” then you can’t make it back to the departure airport, that’s why
it is called the “point of no return.”
"...it would have arrived at the east end of New Britain at the end of 20:13 (the proven endurance of the
plane)..."
Proven endurance? By whom?
.
Sun May 17, 2015 2:56 pm
There is a useful reference document at the "enginehistory.org" site HERE. It is a scan of a Pratt & Whitney internal index of Wasp engine development and applications, revised up through 1956. It's a little hard to decipher; I have tried to distill the applicable information below, i.e. that which pertains to the commercial/civilian S3H1 and the military "equivalents" to the S3H1. The document heading would seem to imply that the commercial/civilian engines were referred to as "Wasp" variants by P&W, and the military versions as variants in the "R-1340" series.David Billings wrote:There is a misconception by many in that they believe that the WASP engines produced in their thousands "must" at some stage have got to New Guinea. Mr. Gillespie thinks so because he says they were "ubiquitous" and we all know he is never wrong. When I spoke to Linda Finch on her arrival in Port Moresby, she told me Wasps were "oll overrr" (my spelling).
Many years ago I contacted the USAF Museum at Wright-Patterson AB and conversed by mail many times with a curator there named David Menard. David was a former USAF F100 Super Sabre Crew Chief with service in VN and an avid aircraft enthusiast. Sadly he left us a year or so ago. David researched the use of the P&W R-1340 S3H1 in military service (USAAC, USAAF, USAF, US Army, USN, USMC, USCG) for me and concluded that none reached New Guinea for most of the "military-in-service" R-1340 S3H1's had been the power for prototype aircraft consisting of biplanes and early monoplane aircraft from the late twenties and early thirties and used for evaluation by the Services prior to orders or production runs.
Clearly the standard R-1340 S3H1 designation was for a "civilian" engine.
The military version of the S3H1 in "Army" use is the "ubiquitous" AN-1 engine and I have not seen any records anywhere of their use in New Guinea before WWII and during WWII. I believe that the USN, USMC and USCG also had their own confusing lettered/numbered designations for this same engine.
The only aircraft with S3H1's that I can find which went anywhere near to New Guinea before the monumental event known as WWII was Earhart's Electra.
If anyone has information of an S3H1 powered twin-engined all-metal aircraft in New Guinea in the years 1937 to 1945 other than Earhart's Electra I surely would like to hear from them.
Sun May 17, 2015 7:19 pm
Sun May 17, 2015 10:23 pm
I think the Trans Canada Airlines* L-10A's had their boots on, so to speak. The forum can be the judge and correct me if wrong. (I suppose it could be just black paint but I don't think so.)David Billings wrote:If anyone has a photo of an Electra with de-icing boots fitted, please post.
Mon May 18, 2015 1:37 am
They were a little unsure of their fuel state on return and made a precautionary landing in Bridgeport, Connecticut (I believe) to add some fuel, turned out that they would have had enough for New York without the stop.David Billings wrote:<....> the one called "The Daily Express". This second one, was used by Dick Merrill and Jack Lambie to fly from the US to London with pictures of the Hindenburg disaster and return from near Blackpool in England to Boston and New York with pictures of the coronation of an English King (George VI ?). I have read that this aircraft was purchased by Russia and ended its' days there.
That flight alone is very interesting for they took off with 1200 USG of fuel from a beach at Woodvale and had some fuel in cans with which to put into the tanks during flight. It is not known accurately as far as I know, just how much fuel was in cans. Earhart's Electra did not have this facility AFAIK. The "Daily Express" was fitted with Leading Edge de-icing boots which degraded the performance and it flew mostly at 5000 feet over the North Atlantic to avoid icing up.
If anyone has a photo of an Electra with de-icing boots fitted, please post.
If anyone has more detail of his historic fight by Merrill and Lambie, please post, for as far as I can gather it still had plenty of fuel in it at NYC on arrival.
David Billings
"Must be Noonan's, then..."
Mon May 18, 2015 2:12 am
gary217 wrote:
Proven by the radio logs of Itasca. We know for sure that the plane had an endurance of 20:13 because Earhart was talking on the radio at that point. So by "proven" we know that the endurance was at least that long but any greater claim for her endurance is speculation. However, if you read the entire post you will see that I also did the calculation for a "speculated" 24 hour endurance and the plane still could not make it back to Bougainville even with 24 hours of fuel on board.
And I put the standard navigation manuals for this on my website and invited everyone to do the calculations for themselves, you don't have to take my word for it, using any set of assumptions that your heart desires. So I don't how you can claim that this is "dogma" when I provide the means and the invitation for you to do the research for yourself.
gl