SOHC.co.uk Forums > CB350/400
Patience needed!
Cappodimonte:
Just to rub it in a bit I have a Bandai 1/12th scale Lotus 49 model in it’s original box with 3 as it’s racing number. This I believe was the Jim Clark racing designate, I also have a 1/12th scale of the gas turbine Indianapolis car in red which was part built and needs some love and attention to finish it off. Both models apparently can fetch quite a high price especially the Lotus which is very rare especially in it’s box.
taysidedragon:
--- Quote from: Cappodimonte on January 12, 2023, 10:28:08 AM ---Well, when it comes to rebuilding anything and I’ve done plenty you can count on it not being original because as soon as you replace an old nut and bolt or screw it is no longer ‘original’ it has been upgraded. You balance what you want to look as it did but couple it up with reliability. Especially as older parts can fail at Inopportune moments.
If you want a real uptight bunch then look no farther than the CAA or as one air bod termed them (Campaign Against Aviation ) as they expect a 70 year old aircraft part to be replaced with another 70 year old part, now to me that’s putting the craft and those in it at high risk.
Personally I’d go for rebuild with upgrade than putting an article back together with fatigued parts just so you can call it totally original.
--- End quote ---
I think you're jumping on the anti-CAA wagon there. They can be very pedantic about certification of parts, but parts do have a 'fatigue life' and if they've reached the end of their safe life you can't use them. Parts have to be approved and, if original manufacturers parts are still available and in usable condition, then they should be used.
Newly manufactured parts are frequently approved for use, just look at all the Spitfires, Hurricanes and other warbirds that are being rebuilt from complete wrecks with just a few original parts left on them. 👍
Cappodimonte:
The conversation I had was with an engineer involved in warbird rebuilding so the comments made were by an expert in the field of aircraft refurbishment not any old joe. The CAA are more interested in originality than useability making it extremely torturous for rebuilding to take place.
In taking that route it’s a very expensive business, much the same as when you race anything, it always costs ten times as much as an ordinary road going vehicle, bikes included.
There’s making a profit and ripping the backside out of it.
K2-K6:
I cant believe that the CAA would condone any fatigue lifed part to be in use for flight.
I trained in engineering at Farnborough with teaching from people working in Air Accident Investigation Bureau, with all that entails around certification, design, inspection etc etc, just can't see anything allowed to fly without the durability requirements being met for any component and regardless of age.
If an original component can't be scourced that met this level, then that in itself brings forward problems as a new/replacement would need verified standard of material science and certification to be even considered for use. That's even more expensive.
Multiman:
The argument about originality exists in all areas of "renovation".
This young guy bought a famous old racing yacht for 1 USD and has been sorting it for the last 5/6 years.
The subject of "is it the original boat" has been discussed at length.
Worth a watch if you have a few days spare!
https://www.youtube.com/@SampsonBoatCo
The level workmanship is fantastic.
One other comment I heard, and I don't know the medical facts, virtually all the cells in our body have been replaced multiple times in our lives. Are we the same person we used to be?
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