Phil_G wrote: ↑22 Apr 2020, 14:21
Its ok we're just jiving you Dodgy
we do plenty of restorations from far worse!
Its a nice example and hats off to you for getting it back to doing its thing where it belongs.
I think the "remove stick for transit" thing is a one-time first delivery idea, I wouldnt use it more than a couple of times. You're right the case is thin and prone to mishandling - but it looks really nice so worth looking after.
Its a common misconception that the complex rudder switch mechanically does the "one-for-right, two-for-left" pulsing, but you'll have realised thats not the case. Its just a two way, centre biassed switch, just like any reeds toggle of the day - which would have been a better, cheaper, easier, and much nicer option.
The RF side of the Codamac is faultless, but the unstable pulser and the horrible switch ruined it for me.
There are a few buttons (RS, Farnell etc) available that look identical but operate much more reliably.
Sponge-retained batteries were the vogue back then, thats just how it was! Many a happy hour was spent chasing foam over a hilltop after a long days soaring necessitated a battery change
Aren't Kinematics sequential? So left-stick will be "same turn" and right will be "opposite turn".
When repairing marine gear we find that most of the corrosion is caused by well-intended plastic bags that retain water. Better to allow it to dry!
Let us know how the project progresses, despite the jiving, of course we do like to see restorations
Cheers
Phil
Its a common misconception that the complex rudder switch mechanically does the "one-for-right, two-for-left" pulsing, but you'll have realised thats not the case. Its just a two way, centre biassed switch, just like any reeds toggle of the day....
I'd never had one of these before - but now that it's been set up, it provides the following outputs:
stick to the right - single tone is transmitted and held
stick to the left - short short tone is transmitted and halted, then there is a pause, then a tone is transmitted and held.
button pressed - single short tone is transmitted and halted.
That sounds like 'press-release-press' for left to me. of course, I may have put the switch together backwards...
Incidentally, 'one for right, two for left' will work with a compound escapement, not a simple sequential one. The Graupner Kinematic is a simple sequential unit. I would like to be able to use the press-release-press function, which, I presume, means making my own actuator. The modelling magazines and books of the 1950s were full of such mechanisms - nowadays you would do it with a PIC! But I have never actually made my own boat actuator, so I would like to have a go.
Boats used to have some of the most sophisticated remote functionality during the 1950s - there was space for masses of relays and mechanisms, and the model would usually survive anything going wrong. I have seen pictures of radios using telephone dials to send pulses and select obscure functions on boats like raising flags - with a sequential switch on the boat using pneumatic dashpots to prevent initiating each function as they were stepped through by adding a little delay...