PH-CGB

[Self loading bear]

I had to prepare the funeral of my father in law and found this beautiful picture of a school trip to Schiphol in his photo album.

I would like to detail the date a bit more.

PH-CGB Jan Scorel was registered with the KLM from 1954 till 1964.

My father in law was born 1948 and was probably still in the boys school. as there are only boys in this picture.

That would limit the photo till pre 1960.

I have read that the PH-CGB was converted from Convaie 340 to Convair 440 spec. I do not know the date of that conversion nor do i know if you can see the difference.

The painted hangar must have been quite colourful and has "737" mentioned so might also give a clue?

https://cimg9.ibsrv.net/gimg/pprune.org-vbulletin/1600x1146/ph_cgb_schooltrip_small_c0cd294a2e681185c6807986b5c8461066b8 5fcb.jpg

[Fareastdriver]

There was a 330/340 at Belize in the late 1970s. It belonged to some Missionary organisation and had a brake fire on the runway. It had been there for some time and had seemingly been abandoned. Our groundcrew, forerunners of today's urban explorers soon found a way in discovering a fantastic super VIP layout in the cabin which showed how these evangelists expected to be treated.

Having experience of supercharged radial engines I hatched this plot of firing it up just to listen to it.

The miserable sods who ran the airport refused to let us have a go, threatening to report us to the garrison commander.

It probably stood dormant, speechless and silent until the scrappers came along.

[Archer4]

website https://www.hdekker.info/registermap/MC.htm

gives some more information.

translation:
Registered with KLM on May 30th 1954
Conversion installed in 1955 (no date)
Deregistered May 6th 1963 (next registrations known PJ-CVB, HP-485, N423AJ), The PJ-CVB registration is for the Dutch west indies.

The National Archive has an accident report for March 23rd 1956 (The name Convair 340 remained) with a Dutch Navy hawker seafury. Unfortunately because it involves a military plane the report is not public. December 13th 1956 is also mentioned. Not sure if that is a second incident or just the date of the publication date of the report.

The conversion to 340B or 440 includes a longer nose and rectangle engine exhausts instead of round ones. Diffcult to see on your photo.
see KLM Hamburg (http://oud16hoven.nl/lijndiensten/klm-hamburg)

The color scheme of the whole fleet was changed in the early 60ies. That would confirm your limitation of pre 1960.

[DaveReidUK]

I have read that the PH-CGB was converted from Convair 340 to Convair 440 spec. I do not know the date of that conversion nor do i know if you can see the difference.

Strictly speaking, a Convair 340 could not be converted to a Convair 440.

That said, Convair offered a Service Bulletin (340-144) which, if and when embodied, allowed 340s to be operated at Convair 440 weights and performance limitations.

However the aircraft remained technically a 340, in fact the KLM example pictured was registered as such throughout its career, up to the point where it was cancelled from the US register in 2012 after having served with KLM West Indies and COPA Panama (though it had actually been broken up in 1975).

[Self loading bear]

All,

Thank you for your quick reactions.
I am now a lot wiser about conversions, long nose, short nose and cup noses.
PH-CGB was converted to CV-440-4 standard in early 1955.
This must have been only the engine (exhaust?) modification as I also see the same full metal short nose with pitot tubes on photos with the Jan Scorel in the later 1960 KLM livery.
so the conversion date is not decisive also because I think 1955 would have been to early as my father in law would have been 7.

The search continues.

[megan]

Convair CV-440 (incorrectly identified) Serial 184 Built 1954
HP-485 dd 1/69 Cia Panamena de Aviacion
PH-CGB dd 5/’54 as CV-340-48 converted to CV-440-4. canx 5/63 Jan van Scorel KLM Royal Dutch Airlines
PJ-CVB dd Aug 1964, canx 12/68 Bonaire ALM Antillean Airlines
HP-485 dd 1/69 Cia Panamena de Aviacion
N423AJ 8/19/74 American Jet Industries Registration cancelled 11/07/2012 Identified as a CV-340 on the registration

https://rzjets.net/aircraft/?page=4&typeid=263

As Dave has pointed out once a 340 always a 340, despite incorporation of mod -144. See note seven of the attached TCDS link which says,Model 340 airplanes, S/N 2 through 311, are eligible for operation at Model 440 weights
and performance limitations as shown in the Model 440 FAA Approved Airplane Flight Manual when the modifications outlined in Convair Service Bulletin 340-144 have been incorporated

https://rgl.faa.gov/Regulatory_and_Guidance_Library/rgMakeModel.nsf/0/86284b968da5453386256af800675521/$FILE/6a6.pdf

Dave, do you know what is significant by the CV-440-4 designation?

[OUAQUKGF Ops]

[QUOTE=Self loading bear;10745141]






The painted hangar must have been quite colourful and has "737" mentioned so might also give a clue?

https://cimg9.ibsrv.net/gimg/pprune.org-vbulletin/1600x1146/ph_cgb_schooltrip_small_c0cd294a2e681185c6807986b5c8461066b8 5fcb.jpg

Possibly the founding of Amsterdam ? Worth doing a bit of homework your end. Too early for significant voyages of Dutch Exploration. Marco Polo?

[Jhieminga]

The paintwork on the building in the background is somewhat reminiscent of the artwork for the 'Atoom' building, which was specially built for an exhibition in 1957. This same building was later repurposed for the 'Aeroplanorama' which was the predecessor to the Aviodome/Aviodrome museum. This Aeroplanorama closed in 1967. The first 737 to turn up in The Netherlands was a Transavia one in 1974, so I doubt that this is a useful link. The design of the 737 went back to 1964 with a first flight in 1967, so it might have influenced a decorative painting in the mid-1960s but not before 1960 I guess.

[DaveReidUK]

, do you know what is significant by the CV-440-4 designation?

No, you'd have to ask rzjets. I don't recall ever having come across a Convairliner with a single-digit variant number.

[Self loading bear]

Thanks,
I found now it is indeed the Wall painting of the Atoom building designed by Hein Stolle
(architect and furniture designer)
the 737 seems to be a coincidence.
It is the top row of what appears to be an Arabic digit puzzle.
displayed in the painting.


https://cimg8.ibsrv.net/gimg/pprune.org-vbulletin/540x402/0790ef31_8b2f_40bd_8935_ea414b4e6fe1_e5426d8d8366074ce90084e 6b854806ad441376f.jpeg
https://cimg9.ibsrv.net/gimg/pprune.org-vbulletin/540x407/caa3e4cb_98a6_439a_a0b8_29e93755292e_5e0d26deabae109fb89ad54 30490f05c4b1f4c49.jpeg

During the Atoom exhibition there was a square with a pond in front of the building.
A visit to the AreoPlanorama would fit perfectly in the school trip.
As the AeroPlanorama opened in 1960, this would narrow it down to spring or early summer 1960 before the re-painting of the aircraft.

[OUAQUKGF Ops]

Jhieminga. How interesting I'm sure you are right. I have found this image.

https://cimg8.ibsrv.net/gimg/pprune.org-vbulletin/509x344/screenshot_2020_04_10_the_culture_of_energy_0a60424de52deb26 ca0e3e6f3c2f9f5ab827dee3.png