Topic: pup instruments

Any ideas what I could use to create the glass part of the instrument thingy that usually sits on the left hand side of Pup dash. I believe the full size contains liquid of some sort although i don't know what it is or is for. I have created to 1/4 scale a reasonable representation but don't know what to do for this glass bit...annoying as it is holding up the rest of my build!
Cheers

I think you are talking about a pulsator, a visual indication the fuel pump was operating, ergo the liquid is petrol.the glass bit can be made from solid plastic rod obtainable from model railway suppliers, just a thought Ken

Like this:

for smaller scale than 3rd guys take a capsule like a cold and flu pill. they seperate them and empty out the contents. then they fill it 2/3 full of clear resin then they tint some resin and finish filling it after the first resin starts setting. looks great. so if you were to take one of them rubber caps you see on the end of tubes that hold the tiny piano wire that would be closer to scale

I think you are talking about a pulsator, a visual indication the fuel pump was operating, ergo the liquid is petrol.

........ a visual indication the oil pump was operating, ergo the liquid is oil

There is no fuel pump as such on many British WW1 aircraft including Sopwiths, positive fuel flow to the engine was provided by pressurizing the fuel system with air.   This was usually achieved by use of a Rotherham pump, a little single cylinder air pump driven by a little prop.  The pump prop was situated in the aircrafts prop wash.   A hand pump in the cockpit allowed the pilot to pressurize the fuel tank prior to starting the engine.



HTH

Alan

made mine from some acrylic sheet i have, turned to shape then polished with acrylic polish, do you have the metal bits made? if so let me know the dia you need, then i can send you one in post  , should you want a complete one same size as mine then i could do another (i have some bits of brass turned allready) for a small remittance

  chris

   (Ceejays Scale Fittings Inc )

     supplier of 1/3 scale sopwith cowls, clevises, elevator,rudder and aileron control horns, rudder bars, joy sticks and sundry other items, 

Not really relevant to this thread but quite an interesting read for Pup builders http://www.eaa.org/vintageaircraft/articles/0911_archive.pdf

I got a friend has a cnc mill and lathe due next week and hes looking at machining a bunch of 1/3 and possibly 1/4 scale pulsometers. I am gonna get him to make me a nice 1/2 scale one or maybe 2

Last one of these I made the glass bit came from a sawn-off Cortina sidelight bulb.

Not really relevant to this thread but quite an interesting read for Pup builders http://www.eaa.org/vintageaircraft/articles/0911_archive.pdf

Bu88er relevance - that is excellent!  Thanks!!

Mike

Many thanks, chaps.

Now I know what it is and have some great ideas about how to go about creating it.
I'm building the D.B. Sport and Scale 1/4 scale Pup. By the time the pilot is in I'm sure not much will be seen of the cockpit area so I'm going down the line of sport scale rather than true scale.
Thanks for the offer, Ceejay, I will see how I get on for now but may take you up on your offer if I can't cobble something up.

Cheers.

Bu88er relevance - that is excellent!  Thanks!!

Mike

 i,ll second that  just printed it off

  chris

Not really relevant to this thread but quite an interesting read for Pup builders http://www.eaa.org/vintageaircraft/articles/0911_archive.pdf

What a fascinating story


Mark