Flexible Drives – Aero, Auto or Marine?

Thanks once again for the replies.

Based on the advice suggested here, I’ve googled Smiths Mechanical Tachometer Cable guide and it took me to this page:-

http://www.classiccarama.com/classic-car-parts/search/?keyword=rev-counter-part-types

There are a number of firms offering cables of similar appearance, and I think the Beaulieu Autojumble idea is the way forward. If they aren’t identified at B, then I may contact one or other of the firms to see if they can help.

It’d be a shame to “chuck” them not knowing what they are for certain.

Thanks once again for the replies.

Based on the advice suggested here, I’ve googled Smiths Mechanical Tachometer Cable guide and it took me to this page:-

http://www.classiccarama.com/classic-car-parts/search/?keyword=rev-counter-part-types

There are a number of firms offering cables of similar appearance, and I think the Beaulieu Autojumble idea is the way forward. If they aren’t identified at B, then I may contact one or other of the firms to see if they can help.

It’d be a shame to “chuck” them not knowing what they are for certain.

To me they look exactly like Tachograph drives used on lorries.
However I cannot see the two small holes which should be in the couplings where wire was passed through and a small lead seal was clamped on to show that the tacho had been calibrated and to stop the driver fiddling it.

To me they look exactly like Tachograph drives used on lorries.
However I cannot see the two small holes which should be in the couplings where wire was passed through and a small lead seal was clamped on to show that the tacho had been calibrated and to stop the driver fiddling it.

Flexible drives,Aero,Auto or Marine?

Sorry ’bout that, but they look like the flap drive cables used on the electric trailing edge flaps on the T-33 and F-105. I apologize for not being more specific.

Flexible drives,Aero,Auto or Marine?

Sorry ’bout that, but they look like the flap drive cables used on the electric trailing edge flaps on the T-33 and F-105. I apologize for not being more specific.

Thanks once again for the feedback!

I’m still after a positive id though. 🙁

Donno21, your reply is a bit cryptic, was that a positive id or a suggestion? I did a quick google and couldn’t come up with anything which matched these cables.

Flightpath, I have a RPM indicator of the type used with the Type B Wind Driven Winch as used on the Martinet for example. It is based on the Smiths Mk IX series mechanical RPM Indicators as fitted to everything from Spit, Hurri, Typhoon to Tiger Moth etc, except the speed is calibrated 0 – 1200 r.p.m. The cable end fitting is the same as for the aero-engine versions but the knurled rings fitted to these cables are of a much greater diameter, meaning it cannot be for the same instrument. I must admit though, I’m not familiar with an instrument for indicating the length of cable payed out – can you point me at a photo of one, please? 🙂

Back to the Mk IX RPM Indicators, they all use the Mk. VI type cable, of which these aren’t examples. As mentioned above, the knurled ring is of a greater diameter and I have never seen (or heard of) an aero-engine drive having the keyed shaft shown here (at least not on a British aero-engine) – or were there different arrangements for, e.g. a civil Gipsy as compared to a military one?

Here’s the WW1 era cable for a Mk IVA RPM Indicator, but the cable used for the WW2 era Mk IX range was not much different.

Beaulieu Autojumble is coming up shortly and I’ll take them there, someone may recognise them.

Thanks once again for the feedback!

I’m still after a positive id though. 🙁

Donno21, your reply is a bit cryptic, was that a positive id or a suggestion? I did a quick google and couldn’t come up with anything which matched these cables.

Flightpath, I have a RPM indicator of the type used with the Type B Wind Driven Winch as used on the Martinet for example. It is based on the Smiths Mk IX series mechanical RPM Indicators as fitted to everything from Spit, Hurri, Typhoon to Tiger Moth etc, except the speed is calibrated 0 – 1200 r.p.m. The cable end fitting is the same as for the aero-engine versions but the knurled rings fitted to these cables are of a much greater diameter, meaning it cannot be for the same instrument. I must admit though, I’m not familiar with an instrument for indicating the length of cable payed out – can you point me at a photo of one, please? 🙂

Back to the Mk IX RPM Indicators, they all use the Mk. VI type cable, of which these aren’t examples. As mentioned above, the knurled ring is of a greater diameter and I have never seen (or heard of) an aero-engine drive having the keyed shaft shown here (at least not on a British aero-engine) – or were there different arrangements for, e.g. a civil Gipsy as compared to a military one?

Here’s the WW1 era cable for a Mk IVA RPM Indicator, but the cable used for the WW2 era Mk IX range was not much different.

Beaulieu Autojumble is coming up shortly and I’ll take them there, someone may recognise them.

Yep square end goes in the instrument, keyed end fits the engine 🙂 Still used for the tacho’s on light stuff.

Yep square end goes in the instrument, keyed end fits the engine 🙂 Still used for the tacho’s on light stuff.

Yep, probably RPM, but Iv’e seen them on older target tow aircraft for the indicator that shows how many feet of cable has been let out.

cheers,

-John 🙂

Yep, probably RPM, but Iv’e seen them on older target tow aircraft for the indicator that shows how many feet of cable has been let out.

cheers,

-John 🙂

Actually, I would go with tacho drives like TonyT.

Actually, I would go with tacho drives like TonyT.

or tacho

or tacho

Flex drives, auto, Aero or Marine.

Flap drive cables.