How long for CS23 flight trials in the UK

[typhoid]

Hi fellow Flight Testers

As an ex-heavy aircraft flight test person (CS25) I've regrettably moved out of flight test in to the world of paper engineering - in particular, light aircraft (CS23).

Here is my question, how long would you programme in from start to end of your test programme to demonstrate part 23 compliance? How long after the end of the programme would you expect to get type cert in the UK?

Thank you in advance for your thoughts, and here is to getting back to the FT world one day - Mr UK, you need more aircraft!

Cheers
Typhoid

[Genghis the Engineer]

How long's a piece of string?

I'm throwing some wildish numbers here, because there are a huge number of variables. But let's say a part 23 normal category single with 4 seats. Two prototypes, one with structural instrumentation, a second with P&HQ instrumentation - 2 TPs, ground staff, 2 FTEs, design support.

Maybe, assuming no fundamental snags, I'd guess 500-1000 hours over 18-24 months. This assumes no significant development flight testing - the design left the drawing board pretty well sorted in other words.

G

[typhoid]

Thanks Gengis. Do not fear, we won't be in competition with you

Thanks for the help previously too, but sometimes the industry can move quicker than you can act..

[Genghis the Engineer]

No fear of competition at the moment, I'm currently in a quite different line of flight testing. I am open to offers of interesting part 23 SEP flight testing that wants doing however. It would be a welcome relief a current existence of of 90% death by management meetings.

G