PART THREE - Models:I have said that the first Platypus models were
electric.
Platypus made
petrol machines in
2-stroke and
4-stroke variants.
But by mid
1953 Platypus were advertising petrol models.
They were powered by
Iron Horse 4-stroke Horizontal shafts either made or branded
as Coopers. [I do not know what brand was used for the 2-strokes.
Cooper Engineering history:
http://www.oldengine.org/members/kmorris/Webpages/Cooper.htmlThe Range:12� 1/3 h.p. electric, push & electric, self-propelled
15� � h.p. electric, self-propelled; petrol, self-propelled
17� petrol, self-propelled
20� petrol, self-propelled
![[Linked Image]](https://www.outdoorking-forum.com.au/forum/uploads/usergals/2013/12/full-7392-13749-1954_11_sunherald_28nov_p56.jpg)
![[Linked Image]](https://www.outdoorking-forum.com.au/forum/uploads/usergals/2013/12/full-7392-13750-2013_11_chv_02.jpg)