Hopefully embedded is a reasonably current AGS/AS listing. Unfortunately for the cancelled specifications it only lists the number and not a description or if has been superseded.

The current custodians of the AGS/AS drawings are SAE ITC http://eatsc.saeitc.org/standards/ but how many historic drawings/specifications they have I don’t really know. The people listed in the contact details are very helpful and have tried to resolve some enquiries for me but with no result. But it may still be worth contacting them.

Ads Ts20 Ags Specs by dsgaviation on Scribd

Hope it’s of use.

Regards

Dave

Plug

Hi Andy,

I’m not quite sure what socket the plug connects to (maybe a type 135 socket Sec/ref 10H/319???) but AP1086 lists the plug as and SP aerial plug as shown on the picture.

Hope that helps

Regards

Dave

Spark plug AP

Hi Jon,

According to AP113L-0500-1 SRR-2 are for Griffon Mks 57A and 58; please see here in Table 1 page 18 of the scan:

AP113L-0500-1 Aero Engine Sparking Plugs by dsgaviation

Regards

Dave

Sprokets

Hi Jed,

Please find Hunting-Percival Design leaflet DB14-03 for sprockets as requested.

Hunting Percival DB14-03 Sprockets

Hope it’s of use to you!

Regards

Dave

Apologies for being a little off topic, and please move if more appropriate elsewhere, but have scanned the following this morning:

1958 dated Ministry of Supply Standardization Design Memorandum SDM(A)36 for stiffnuts; this states stiffnuts used in design of new aircraft, aero-engines, accessories and equipment shall comply with British Standards, these are for unified nuts.

MoS SDM 36 Stiffnuts

SDM 136, which is dated 1956 gives background for selection of bolts and nuts of aircraft quality. It states that bolts and nuts for use in new design of aircraft, aero-engines and airborne equipment shall be selected from this SDM. The tables in use for this SDM list both Unified and BA/BSF threads, so probably little wonder that there is a mixture of both throughout the 50s,60s and 70s!

MoS SDM 136 Bolts and Nuts

Yes, working on the F27 equipment was fun with the mix of fasteners. I do remember applying the label to the MLG stating that ‘all threads on this unit are unified’, well apart from the BSP fittings on the pipework that is!

Hope the info is of interest.

Regards

Dave

Hi there,

I have this listed as 45TE81A/ND, Dove/Devon/Sea Devon elevator starboard, tip complete with mass balance. Sec/Ref: 26FN/5539

Hope that helps

Regards

Dave

Hi there,

AP1086 Sect 6A dated Sep 1966 has 6A/4989 listed for use with Comet with a Kelvin Hughes p/n of KTD0412

Hope that helps

Regards

Dave

Hi Tim,

Unfortunately this section doesn’t have illustrations (I’ve only come across illustrations in Sec 5L and 28), there isn’t even a reference to a part number for the items.

Regards

Dave