Warbird Information Exchange

What piston single engined aircraft used an MAP gauge that went up to 75" of manifold pressure ?

I'll post some photos in a couple of hours.

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Aussie expat lost in Indonesia

Many. Definitely all that mounted the R-2800. P-51 did. Not sure about various Allison and R-2600-powered types.

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It was a good idea, it just didn't work.

That's interesting , I bought 2 large boxes (3 guys to lift 1 box) of instruments today , 20% are NOS , 30% in good condition and the rest as removed or damaged.

Lots of MAP gauges , air speed indicators , turn and bank etc

They came from the base that used to have a lot of P-51s, A-26s, B-25s and C-47s so there's a good chance they are from some of these aircraft.

Part numbers are AN5770-1 for the single needle 75" MAP gauge and AN5770-3 for the 100" MAP gauge.

I've never seen a 100" MAP gauge before (3rd from the left)






Once I get a chance to go through them I'll keep a bunch of them for personal stock and sell off the surplus , guess-timating around 200 to 300 gauges

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Aussie expat lost in Indonesia

You should have a steady flow of buyers for any NOS AN5770-1's.

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It was a good idea, it just didn't work.

Are you sure those can legally be imported into the US (radium dials)?

Always with the negative vibes, Moriarity...always with the negative vibes.

Unfortunately, Brandon's most likely correct on this.

I guess all the Antipodean restorers will have to buy your wares.

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It was a good idea, it just didn't work.

Wow , hadn't thought of that

How do you guys ship them internally in the USA ?

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Aussie expat lost in Indonesia

I've never had any trouble shipping with either the US Postal Service or UPS. I won't purchase or sell anything that has a cracked or missing glass face though.

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It was a good idea, it just didn't work.

MAP gauge on the far right is AN5770-2A-12 dual indicator 75" range

Application ?

Turn and bank indicators are Bendix AN5820-1

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Aussie expat lost in Indonesia

Maybe the operating range markings might give a clue as to what engine they were used on?

P.S. I wouldn't hesitate to buy these if I needed them and risk shipping them into the country. After all, that's where they came from.

Hi BDK,

Most of these AN gauges don't have green and yellow arc range markings.

I'm guessing the 50" MAP gauges are T6/Harvard

I found photos of Mustang instrument panels using both 75" AN5770-1 and 100" MAP AN5770-3 gauges so I don't know which one is the original MAP gauge for the Mustang.

When I looked at these intruments yesterday I thought they were 50's and 60's vintage transport aircraft gauges but as I went deeper into the box I started finding 6,000 fpm VSIs, very high range MAPs and oxygen blinkers so I figured they had to be high performance fighter gauges.

That's what I love about this business, nice surprises. I love the thrill of the chase of going into dusty old warehouses and tracking down leads for warbird exotica which is the fun part of what I do.

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Aussie expat lost in Indonesia

3 weeks ago, I successfully shipped a couple of instruments with the Radium paint from Canada into the United States via Canada Post/US Postal. If you clearly write UN2911 on the outside of the box US Postal Service will recognize it as a negligible amount of radioactive isotopes & let it through.


The following link below is for shipping bulbs, but it's under the same principle. You could probably find something for these types of instruments if you looked hard enough.


http://www.nema.org/media/pr/20080103b.cfm

Thanks for that Hvd2Pilot

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Aussie expat lost in Indonesia

Watch for dials that have markings turning to dust and have cracked or damaged glass or housings. Assuming it is Radium in the markings that could release the dust. Take care not to breathe the dust or let it fall out into your home.
If you darken the room and the gauges glow all night that means they are probably Radium.
Rich

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Rich Palmer

Remember an Injured Youth
benstear.org
#64- Stay Strong and Keep the Faith

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This was in one of the boxes





Kollsman sextant NSN 6605-00-515-4834

I'm guessing it was from a Grumman Albatross or C-47 ?

Should clean up ok , I'll be keeping this one

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Aussie expat lost in Indonesia