withdrawal of SSDR regulation

tony bishop · Post by **tony bishop** » Sun Nov 02, 2008 9:38 pm

The CAA has just withdrawn the original order regarding SSDR. I can't find any replacement....!!!!!
Anyone know anything about this? We've just started building the e-Go prototype......
Tony

tony bishop · Post by **tony bishop** » Sun Nov 02, 2008 9:44 pm

It's the recent regulation exempting some aircraft from most regulation. It stands for Single Seat De-Regulated.

Tony

tony bishop · Post by **tony bishop** » Mon Nov 03, 2008 12:00 pm

Panic over! It's simply been incorporated into the Air Navigation Order.....if you can find it amongst its 474 pages.....

Bill McCarthy · Post by **Bill McCarthy** » Mon Nov 03, 2008 1:42 pm

Phew !!

eyesoar · Post by **eyesoar** » Wed Nov 05, 2008 10:09 am

Can be found in CAP393, Section 1, Part 3, Article 8(2), page 35 of 444
http://www.caa.co.uk/docs/33/CAP393.pdf
It does not say much, as you can see.

However, if anyone from HQ or Engineering is monitoring this it would be useful to have on the website (if one does not already exist and I just can't locate it), or here, a synopsis of exactly what one would have to do to, satisfy, demonstrate etc in this category. Which CS's or BCAR's are to apply etc etc. It seems often the hardest part in any project is to find your way to and in and around the "rules" - possibly this is the first test!

tony bishop · Post by **tony bishop** » Wed Nov 05, 2008 10:18 am

I agree. And one thing that's come to light is that, if your plane falls within the SSDR regs, you cannot get a permit to fly. So it cannot be flown abroad. I had assumed that one could opt either way....

In fact an LAA magazine article that interprets the new regs. would be really valuable for quite a few people, and help promote SSDR. (Brian Hope - are you watching...!)

Tony

Penguin · Post by **Penguin** » Wed Nov 12, 2008 1:40 pm

The whole point is that there are no rules. If you meet the specifications (that were in the SSDR document and are now in the ANO) then you can do anything. IIRC there are weight and wing area (perhaps wing loading) specs. So if your aeroplane is below the weight limit and has a wing loading lower than the magic number (10 kg/m^2?) then if you have a licence and register it you don't have to do anything else. You can use any engine, you can use anything to build it from, it can be any configuration. But if it weighs more than the limit (115kg empty?) then all the normal rules come back into play. I think its a great rule! How much do you value your own life? Clearly the rules in CS-VLA give some good guidelines to work within, but you can do what ever you like.

Pete

tony bishop · Post by **tony bishop** » Wed Nov 12, 2008 2:03 pm

Ah but there are some grey areas, and some implications. For example:
- canard (lifting) surfaces can be included in the area, whereas conventional tail surfaces cannot. What about the projected area of wing struts and undercarriages (probably ok if they are genuinely lifting surfaces).
- batteries for electric powered planes are probably excluded from the maximum basic weight.
- we can't fly an SSDR abroad, as there are no reciprocal agreements for them.
And I'm sure there'll be others....

It's never simple!

Tony

Barry Plumb · Post by **Barry Plumb** » Fri Nov 14, 2008 6:04 pm

Remember that these aircraft are microlights and will therefore also need a noise certificate.

Barry Plumb

Barry Plumb · Post by **Barry Plumb** » Fri Nov 14, 2008 6:15 pm

By the way there is an LAA Technical Leaflet on the subject of SSDR aircraft. TL 2.17, downloadable from the Engineering section of the Web Site

Kind Regards

Barry Plumb

tony bishop · Post by **tony bishop** » Fri Nov 14, 2008 6:27 pm

Thanks Barry. Hadn't seen this before.