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1

Freitag, 21. September 2007, 13:35

Saitos

Hallo,

wer kann helfen ?

ICh finde bei W&W verschiedene Motorengrössen im Angebot

Saito 65 ; 550g ; 1,1PS ; ABC
Saito 72 ; 470g ; 1,2PS ; ABC
Saito 80 ; 540g ; 1,3PS ; ABC
Saito 82 ; 462g ; 1,5PS ; AAC
Saito 91 ; 510g ; 1,6PS ; ABC


Woher kommen die unterschiedlichen Gewichte ?
Haben einige der Motoren Gehäuserückseiten aus Kunststoff?
Wenn ja, hat das Nachteile ?


Wer kann den 82 empfehlen, sprich hat ihn und kann gutes berichten ?
Hat die AAC Kombi NAchteile gegenüber ABC ?




Danke vorab

Gruss
Frank

djlyon

RCLine User

Wohnort: Castaic, California

Beruf: Retired Aeronautical Engineer

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2

Freitag, 21. September 2007, 18:57

Hi Frank


Sorry for the English. I speak and read German but I don't write it.

The Saito 72/82 are in the same basic case. This case is much smaller and lighter than the 65/80/91 case. Both the 72/82 are AAC engines. At least mine are. The 82 is lighter than the 72 because more metal was removed to make it an 82.

Denis
I never met an engine I didn't like

R.T.

RCLine Neu User

Wohnort: -St.Gallen Bodensee

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3

Sonntag, 23. September 2007, 09:42

Hallo,
Die Saitos 45,50.65 und 80 werden glaube ich nicht mehr produziert. Die leichteren Modelle 56, 62, 72 und 82 ersetzen sie.
Grüsse, Rolf

4

Montag, 24. September 2007, 14:47

Denis,

no problem to switch to english !

Does it mean, that you are using the 72 or 82 or both ?

If yes, please summarise shortly your experience and if you recommend to take one of them.

As i could not find datas for the 82 version on the european importer homepage - is the size the same then the 72 ?

If yes, i assume the 82 is the best choice among 72, 82 or 91 !?

Thanks in advance

Cheers
Frank

djlyon

RCLine User

Wohnort: Castaic, California

Beruf: Retired Aeronautical Engineer

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5

Montag, 24. September 2007, 17:54

Hi Frank

I only have the 72 but a friend has the 82. They are the same size. My 72 would turn a 13/6 APC about 10300 rpm on PowerMaster 15% nitro with 18% oil, of which 1/3 was Castor oil. On 30% nitro heli fuel with 22% light synthetic it gained 300 rpm. My friends 82 did 300 to 500 rpm better with all other things the same. That was about the same as my YS63.

Unless the price is much less for the 72 I would get the 82. But if the 72 is 40 to 50 Euro less I think I would get it. In the air on the same plane I don't think you could tell the difference between these 2 engines.

Denis
I never met an engine I didn't like

Dieser Beitrag wurde bereits 2 mal editiert, zuletzt von »djlyon« (24. September 2007, 23:00)


6

Mittwoch, 26. September 2007, 08:07

Denis,


thanks !

The actual german prices :

https://ssl.kundenserver.de/w-w-modellba…ndex.shopscript

There are only 24 Euros between 72 and 82 version !

You don't have experience with the 91 Saito ?

Cheers
Frank

djlyon

RCLine User

Wohnort: Castaic, California

Beruf: Retired Aeronautical Engineer

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7

Donnerstag, 27. September 2007, 01:00

Hi Frank

I have some experience with the Saito 91 but I do not own one. It is much larger than the 72/82. I am surprised that it is only 50 grams heavier. I would have thought 70 or 80 grams.

Picking between the 72/82 and the 91 is very airplane dependent. The 72 /82 is a perfect fit in airplanes designed for 40 to 50 size 2 stokes where props from 12/6, 13/6 or 14/4 are going to be used. The 91 is more suitable for planes designed for 60 to 90 2 strokes or 90 4 strokes. The 90 could be difficult to fit in planes designed for 40 to 50 2 strokes and there might be weight and balance issues.

I used my 72 in a Magic Extra 3D designed for 40 to 50 2 stroke engines and it worked great. I don't think I could have gotten the 91 in that plane.

I built a Carl Goldberg Chipmunk designed for 60 to 90 size engines and had chosen to get a Saito 91 for it. Before I was finished with the plane the Saito 100 came out. So I got it instead. Same basic size case as the 91 and more power. If I had waited a year or two I would have gotten the Saito 125. Again the same basic size case as the 91 but still more power. That is the slippery slope that Saito uses to sell more engines I think. So if you are thinking of a 91 then you have to think of the 100 or 125. Just more money and you always have the throttle to control the power.

Denis
I never met an engine I didn't like

Dieser Beitrag wurde bereits 1 mal editiert, zuletzt von »djlyon« (27. September 2007, 01:03)


8

Donnerstag, 27. September 2007, 10:35

Denis,

perfect summary - thanks !

The intention of considering the 91, was to be prepared for a bigger plane !
But it seems, the best is to go with the 72 for my Graupner AT 6 (red, older one, approx. 2,5 kg - 3kg) !?

What is the weight of your Magic Extra 3D ?

Cheers
Frank

djlyon

RCLine User

Wohnort: Castaic, California

Beruf: Retired Aeronautical Engineer

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9

Donnerstag, 27. September 2007, 18:37

2,2 kg
I never met an engine I didn't like