resprayed sentinel

[cyrilranch]

why gloss?

View topic - Sentinel ZJ691 ReSpray.

[Milo Minderbinder]

shiny things are easier to sell second hand
they look prettier

[WE992]

Because it lasts longer! The 2 146's recently purchased are also in this gloss grey.

[NutLoose]

Harder wearing in gloss, finish lasts longer, easier to clean and goes quicker.. Additionally it gives the chaps something to do keeping it shiny.

[Pontius Navigator]

Serco bought a job lot of gloss from Ramco?

[Pontius Navigator]

When the V-force switched from white to camouflage the job was a rush one and a matt finish was used. I think the coeficient of reflection for the white was IRO 0.98 whereas the camouflage was near 0.3. (I think the terms are right, the values are close and relate to the potential of the paint to attentuate the light or heat pulse IIRC).

Once the initial conversion was done there was a more leisurely repaint with high gloss polyurethane. It looked smart and would have had a much higher attenutation. It also added 4,000lbs to the AUW.

However I thought the more recent matt finishes had more to do with IR attenuation, so why the gloss?

[Wensleydale]

However I thought the more recent matt finishes had more to do with IR
attenuation, so why the gloss?

I also understood that the matt "barley grey" finish was to prevent the reflection of IR energy. I was also told that when the E-3D entered service, the request to paint it matt (rather than the shiny grey/white of the NATO/USAF fleet) caused some consternation at Boeing because the new paint scheme would also absorb heat from the sun whereas the old shceme would reflect it. The story was told that when the USAF transport fleet changed from gloss to camouflage, there was an increased failure rate of aircraft systems due to insufficient cooling. The result was a somewhat expensive investigation as to whether the E-3D's new scheme would affect the mission system or would additional cooling be needed.

Perhaps the Sentinel systems got a little warm?

[Pontius Navigator]

Wensleydale, good point. We remember the white cockpits on the flying wheel barrow and the desert cam Hercs, the white top on the Dominie, the white top on the Shacks etc etc.

[WhiteOvies]

Looks like a gloss sea grey colour, good for an MPA! Really hope they find a role post Herrick as binning them would be a hell of a waste.

[Geehovah]

I agree. No IR threat; no problem.

[TorqueOfTheDevil]

flying wheel barrow

Beverley??

[4mastacker]

flying wheel barrow

Beverley??

AW660 Argosy.

the ten letters jobsworth fairy strikes again)

[Wander00]

Argosy - "Whistling wheelbarrow" ISTR

[Out Of Trim]

Argosy = Whistling Tit !

[matkat]

Certainly looks better than the first to be painted, I was the rep that took the first one from Broughton to air livery.