De Schelde Aircraft Projects and Prototypes

hesham said:
I can't remember the source,and before this text in my files,the S-13
and S-14 were a development project variants from S-12
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Your source is incorrect Heham..

The S.12 was an air taxi planned for 3- 4 people
but it could carry only a pilot with some lugage. (only one plane constructed)

The S.13 & S.14 are cited as projects with a question (?) mark in Pieter Van Wijngaarden
book 'De Schelde , afdeling Vliegtuig bouw" - (De Schelde , dept. Aircraft construction)

According to the late Hugo Hooftman S.13 & S.14 should be mentioned as the Scheldemusch & Scheldemeew
in some De Schelde documents ,but this is never confirmed.
 
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lark said:
Your source is incorrect Heham..

The S.12 was an air taxi planned for 3- 4 people
but it could carry only a pilot with some lugage. (only one plane constructed)

The S.13 & S.14 are cited as projects with a question (?) mark in Pieter Van Wijngaarden
book 'De Schelde , afdeling Vliegtuig bouw" - (De Schelde , dept. Aircraft construction)

According to the late Hugo Hooftman S.13 & S.14 should be mentioned as the Scheldemusch & Scheldemeew
in some De Schelde documents ,but this is never confirmed.
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My dear Lark,

maybe just unconfirmed developments ?.
 
Apophenia said:
Excellent! Thanks for identifying a source, lark!

So, this concept would have been aimed at KLM's Westindisch Bedrijf (WIB). I presume this means that WIB had begun the search for a Fokker F.XVIII replacement soon after 'Snip' (PH-AIS) made its first flight to Curaçao. And, of course, KNILM in the NEI was already replacing Fokker trimotors with DC-2s.

Also great to have those captions from Hooftman's Nederlandse Vliegtuig Encyclopedie de Schelde volume. On that text, most interesting to see that the S.8 was to be offered with alternative radial engines. We know that the F.XVIII trimotors were Wasp C-powered. KLM DC-2s had 750 hp Cyclone SGR-1820-F2s and the DC-5s that followed in WIB service were also Wright-powered. Of course, no guarantee that, in 1935, de Schelde had anticipated that shift from P&W to Wright engines.

I too was going to comment on the nacelle markings 'Schelde I / Vlisingen'. Back in reply #58, you had noted the similar 'Schelde II / Vlisingen' markings on the jachtkruiser design which opened this thread. Since we now have it confirmed that 'Schelde I' refers to the first T.E. Slot design specifically for de Schelde, we can safely infer that 'Schelde II' indicates Slot's second design for the firm. As such, we can dispense with the notion that that those jachtkruiser markings might suggest an 'S.11' [sic] designation.
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Slot and De Schelde continued the development line established at H.Pander &Zonen.
The first projects were S.6 and S.8 , a twin engined low wing aircraft with retractable landing gear that could
accommodate 8 passengers.

The S.6 was equipped with Radial engines , whle the S.8 was with Inline engines.
The airliners were proposed for the Dutch Easr Indies matket...

from P.226 : chapter 1935-1940 N.V. Koninklijke Mij. 'De Schelde'
Theo Slot, Pander & De Schelde " Lanasta publ. - 2025
 
lark said:
Think not...

1068 is a phantasy military registration on the fuselage of this design.
It is not sure if it was a development of the Postjager...

It could be De Schelde's entry in a late 30's jachtkruiser competition for the Dutch MLA.
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In 1935 pictures of a model of a twin engined 'jachtkruiser' appeared in the press.
It was powered by two inline engines , driving 4-blage props.
The fuselage and the ailerons on the wing were reminisent to the Pander S.4.
On the fuselage of the model 'Schelde II' was painted.

Highly probable , is this the model of the S.10

A model of wich was made in 1934 by H.Pander & Zonen.
The model was also mentioned in the book keeping balance documents
by Pander &Zonen for 1934.

So far : Peter Knippels in 'The Slot,Pander & DeSchelde : p.192
Lanasta publ.2025.
 
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lark said:
In 1934 pictures of a model of a twin engined 'jachtkruiser' appeared in the press.
It was powered by two inline engines , driving 4-blage props.
The fuselage and the ailerons on the wing were reminisent to the Pander S.4.
On the fuselage of the model 'Schelde II' was painted.

Highly probable , is this the model of the S.10

A model of wich was made in 1934 by H.Pander & Zonen.
The model was also mentioned in the book keeping balance documents
by Pander &Zonen for 1934.

So far : Peter Knippels in 'The Slot,Pander & DeSchelde : p.192
Lanasta publ.1925.
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Many thanks to you my dear Lark,

but do you mean this one ?.
 

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Thank you my dear Lark,

and may it was S.10 or S.11 ?.
 
hesham said:
Thank you my dear Lark,

and may it was S.10 or S.11 ?.
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What is the meaning of this Hesham.. ?

Your "S.11" is not mentioned in the book I cited .
Not even in the index pages...
 
lark said:
What is the meaning of this Hesham.. ?

Your "S.11" is not mentioned in the book I cited .
Not even in the index pages...
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OK my dear Lark,you meant it's probably S.10,not another designation.
 
hesham said:
Are there any other projects in this series,4301 & 4302 ?.
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Just to clarify, are you inquiring after the tekening nummern which follow sheets Jae-4301 and Jae-4302? Or are you asking about random De Schelde projects beyond those illustrated by Jae-4301 and Jae-4302?
 
Apophenia said:
Just to clarify, are you inquiring after the tekening nummern which follow sheets Jae-4301 and Jae-4302? Or are you asking about random De Schelde projects beyond those illustrated by Jae-4301 and Jae-4302?
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Yes,I meant the others random projects for it.
 
My dear Lark,

can I ask you about the situation for the two projects in reply # 1 and 5 on
Dutch new book ?.
 
Think the answers for your question Hesham , is already
given in this thread....

nr.1 - De Schelde II-- Theo Slot design taken with him when he left
Pander for De Schelde- expenses for the making of the model noted
in the book keeping documents of Pander.
Should be -highly probable- the S.10 according to the new book.

nr.2 - Van Lammeren design for KLM . LAV airplane (long range aircraft) South America.
500k mail with crew and 4 passengers
Mock up constructed by the Schelde. Generaly resembling Pander S.4 but much larger.
 
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Many thanks to you my dear Lark,

and for the second aircraft,its designation is not known.
 

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