RottenRow

I don’t think this is the case with the Archer receivers (see my post above). There is no ACCST firmware available in the downloads section of the FrSky website for these receivers, not that I can find anyway. The only firmware seems to be ACCESS firmware, which also gives ACCST support but presumably only V2. As Peter says, probably best give T9 a call or an e-mail. Brian.

Under the heading for FrSky Archer receivers on T9’s website, there is a note stating that they only work with V2 ACCST, see below: This suggests that you can’t flash these receivers with the older ACCST V1 firmware. As you don’t want to update the version of ACCST on your tx to V2 (it has nothing to do with the version of Open TX by the way) this means these receivers won’t work with it. One thing you could do is to install an FrSky XJT module in the external port in the back of your Taranis and use this to operate these receivers. A new XJT module would be V2 LBT if bought from T9 (though they are out of stock at the moment). This would not affect any of your other models which would continue to use the internal transmitter module. Brian.

The bendy needle valve and ratchet spring were used on various Enyas over the years. The “venturi” looks like a piece of brass tube, something home made probably to replace the missing original. Brian.

That is an ED Comp. Special, 2cc, late ‘40s. The needle and its fitting aren’t original. They look like they are from an Enya. Also the fuel tank is missing. Here is a picture of one from Mike Clanford’s book. Brian.

There is one on the BMFA Classifieds at the moment. https://classifieds.bmfa.org/acadp_listings/biperblast Originally from the late ‘80s, from a small UK manufacturer whose names were Curtis and Giles. I don’t remember any subsequent models from them. If the mystery model is one of these you won’t get a cowl from the manufacturer now. Perhaps someone like Carbon Copy or Vortex Vacforms will have something that will fit it. Brian.

Have a look at this thread from last year. Although not 100% what you are looking for it might give you some ideas. The BMFA scale competitions, which are based upon the FAI (international) rules, use a couple of compulsory manoeuvres and the rest chosen to suit the aircraft type from a list in the Scale Rules book, which can be downloaded from the Scale Technical Committee section of the BMFA website. The idea nowadays is that the entire flight should feature manoeuvres that follow on smoothly from each other. The flight is judged on each manoeuvre, plus the overall realism. Take off and landing are judged for scale accuracy also. For your ‘display’ flying you could feature some of the manoeuvres more than once. You could also watch a full-size display of a similar aircraft and base your flight around that. The idea of a universal flight for either a warbird or a Tiger Moth doesn’t really work, as their flight patterns are so different. Brian.

Diacov (Sarik) is the covering with a heat activated adhesive backing, so applied in a similar manner to Solartex. Diatex 1000 is the same material but without the adhesive, so is applied in the same way as Koverall. Ceconite is similar I believe. It can be obtained from full-size aviation suppliers, and comes in a width of a couple of yards. When applying Diacov, and presumably Diatex, you will need a few new knife blades. As soon as the blade gets slightly dulled the material doesn’t cut cleanly, and frays, giving a ‘hairy’ edge. Brian.

PM sent to you Neil. Brian.

Oh just crossed in the post….

I fully agree with Peter. I would hazard a guess that your crystal was originally for a Fleet radio; FCS73R = Fleet Control Systems 73 Receiver. Micron used to supply either genuine Futaba crystals, or unbranded ones such as yours at a lower price. Both types worked equally well. Brian.

I’m not really sure that the majority of the posts in this thread could really be described at complaints, more concerns from those who have engines with what to them appear to have an uncertain future. None of the posts in the three pages have stated anything negative about Jon, quite the opposite actually. At the end of the day, nobody HAS to read this thread, or any other. Brian.

As Geoff (owner of AGC and hence Laser Engines) appears to be putting a value of zero on the company, perhaps he could make the CNC files available to anyone who would like them. As the Lasers are largely made of CNC machined parts, these could perhaps then be made by another company (or companies) who have suitable machining capabilities. There would be a lot of work involved for whoever took this on. Perhaps a group of like-minded modellers? Brian.

Martin, you seem to be ignoring the fact that the battery self-discharged (the switch was off), I think it is likely to do the same again, perhaps when you least want it to. It will be perfectly fine for home running the engine etc. but you don’t want to find a flat ignition battery on the one day that is both wind and rain free…. Brian.

The company and its original Airlander was based in one of the airship sheds at Cardington (Bedfordshire) until a few years ago. That is about two miles from our club's flying field, but we never had any issues. It could often be see flying in the area. Following some issues, the use of the Cardington shed was no longer available and the Airlander was then moored outside. One night it broke loose from its mooring and was shredded by hearby hedges and laid in pieces on the ground. I have heard no more of it until now. It's interesting that the idea seems to have been resurrected. Most of the airfield at Cardington is now being covered by housing, though the sheds are used (for film work) and are listed so will stay. A couple of pictures. Brian.

Perhaps the tortoise / hare gives two speed ranges, with the speed and direction (steering being on the joystick). After all, there would be no elevator control. Brian.

Warbird Workshop on More4 tonight was the Sywell Tempest (Centaurus version). It is repeated later tonight (midnight), or on catch up. Worth watching. Brian.

Can you use the transmitter’s display function (section 5.4, page 14 of the manual) to make sure that the throttle channel output signal is actually changing with movement of the stick? And by how much? The i6 has a throttle hold function, perhaps this has got set to zero by mistake. Also check that the end points for the throttle channel are set to + and - 100% (same page of manual). As the motor runs when the ESC is fed with a signal from a servo tester, that suggests that the problem isn’t a faulty ESC or motor. Here is the i6 manual if you don’t have it: FS-i6+User+manual+20160819.pdf Brian.

Exactly. Put a lump of 2”x1” on the motor. It’ll pull plenty of amps. The model won’t fly very well though. Brian.

Sorry to hear about your illness Matty. Wishing you a speedy recovery. All the best, Brian.

They are still technically dry cells, as opposed to wet cells (typically lead acid). Non-rechargeable dry cells are known as primary cells; rechargeable ones (of any type) are secondary cells. The old 4.5V flat batteries (Ever Ready 1289 etc.) are still available, though probably not in the battery display at your local Tesco. The IEC number for them is 3LR12. I used to use these in small Keil Kraft model boats, free running, not R/C. The phosphor bronze connectors were reusable to make pickups for model trains once the batteries had died. https://www.batterystation.co.uk/panasonic-zinc-3lr12-4-5v-battery-1-pack/ Brian.

I have a book written by L. H. Sparey (the designer of your engine). He shows the turning of a crankpin in a similar way to your method, except his vee block was designed to bolt on to a faceplate. He refers to the vee block as a Keats plate. They aren’t very clear but hopefully you will be able to see from the pictures below how he did it. Also shown is the book. First published 1948 but reprinted later. Brian.

He he that simplifies things then! Nice old lathe. Brian.

Thanks. All makes sense. What is the speed of the chuck please? Brian.

Which suggests that your throttle cut isn’t doing what it should. Can you tell whether that servo movement is ‘full range’? Ie what would equate to 100% in both directions. You might need to go back and reset everything again, without AS3X and SAFE enabled, then measure that servo’s movement (add a pointer onto its arm, and mark the total movement on a piece of paper), your ESC should be working ok at this point. Then set your AS3X and SAFE and see how that changes that servo’s movement. I suspect that it will reduce it, at one end at least. Brian.

Ha ha I made the same vee block and clamp as a first year apprentice too. It must have been a standard EITB thing at the time. At what speed is the lathe turning to make that cut please? I’m asking purely out of interest. Would using the tailstock with a centre on the end of the crankpin add a bit of security, or is that a bad idea? Perhaps there isn’t sufficient room with the saddle and slides. Or perhaps you have just moved it back for the photos, as I can see it in place on the top photo. A very interesting thread, thank you. Brian.