Identify ANBO IV gauges

[Justinas Jakubovskis]

Hi, some time ago I was started to identify Lithuanian plane ANBO IV (1932-1935) gauges. Engine was Bristol Pegasus. There is only one photo in old magazine, I got this foto from archive at highest resolution, but still it is poor. Some instruments I identify, some gauges sketched wrong some from mt head . Gauges except compass and heading should be in metric system so it will be likely German, French or from other European countries.

With these gauges I have problems:

2. boost gauge looks very similar to British but this is with triple digits???
6. Variometer similar to German ones, but it measures from 0 to 6 m/s I did not find German one that measures up to 6 m/s
14. Engine oil thermometer was painted by me from head because I did not find anything similar.

Maybe other gauges I identified wrong too. I want to make +/- correct dashboard then maybe make 1:1 print or maybe to make dashboard replica .

 

[Wurger]

Welcome to the site.

Regrading your questions .. IMHO the variometr is very similar to the German Askania-Werke A.G Vertical Speed Indicator type Lv5r from 1932. Because the manufacturer made other ones for different climb range that's possible it might be one of them.

the pic source: https://www.warrelics.eu/forum/fiel...eich/askania-variometer-segelflugzeug-501477/

 

[MiTasol]

A great project and I wish you the best with it.

As Wurger says the variometer may be just a version of one of the Askania-Werke unit made to order. All they would need to do is change two gears and the instrument face. The former means making those parts but the later is just making a different silk screen to paint the dial unless it included a radium dial (yellow letters) which is still a fairly simple process for an instrument manufacturer.

Re 2. boost gauge looks very similar to British but this is with triple digits??? this may well be a British unit with a new dial custom made in Britain or Lithuania. That said I have never seen a boost gage that starts at zero and goes both ways which does not mean that this is not a boost gauge - just an unusual one.

You are showing three oil temperature gauges and the bottom one looks very British. You are missing an oil pressure indicator and I suspect one of those is one of the top two.

May I suggest you look at British Instrument documents The Brits, and others, often call variometers Rate of Climb indicators.

 

[Justinas Jakubovskis]

A great project and I wish you the best with it.

As Wurger says the variometer may be just a version of one of the Askania-Werke unit made to order. All they would need to do is change two gears and the instrument face. The former means making those parts but the later is just making a different silk screen to paint the dial unless it included a radium dial (yellow letters) which is still a fairly simple process for an instrument manufacturer.

Re 2. boost gauge looks very similar to British but this is with triple digits??? this may well be a British unit with a new dial custom made in Britain or Lithuania. That said I have never seen a boost gage that starts at zero and goes both ways which does not mean that this is not a boost gauge - just an unusual one.

You are showing three oil temperature gauges and the bottom one looks very British. You are missing an oil pressure indicator and I suspect one of those is one of the top two.

May I suggest you look at British Instrument documents The Brits, and others, often call variometers Rate of Climb indicators.

Those two identical gauges on top on the blueprint called Oil in tank thermometer, and oil in engine thermometer 14. is oil pressure gauge I will fix that. I will look at British gauges, thank You .

 

[Justinas Jakubovskis]

Welcome to the site.

Regrading your questions .. IMHO the variometr is very similar to the German Askania-Werke A.G Vertical Speed Indicator type Lv5r from 1932. Because the manufacturer made other ones for different climb range that's possible it might be one of them.

View attachment 870751
the pic source: https://www.warrelics.eu/forum/fiel...eich/askania-variometer-segelflugzeug-501477/

It is similar but, German gauges has slightly curvy around those mounting hole "ears", but this has more aggressive rounding. I even tried ask Gemini AI and it said that is French Badin gauge even gave some links but none of those links was working :- D, and I did not manage found even slightly similar from Badin gauges.

 

[Justinas Jakubovskis]

Added original dashboard blueprint, and realized that hole for variometer is 79mm like turn and bank indicator (witch is marked as Pioneer) so it is unlikely was German because German gauges as far as I know has 80mm cutouts. Is there possibility that Americans made metric aircraft instruments?

 

[MiTasol]

Those two identical gauges on top on the blueprint called Oil in tank thermometer, and oil in engine thermometer 14. is oil pressure gauge I will fix that. I will look at British gauges, thank You .

Very interesting. I have never seen an oil in tank temperature gauge before but having operated in subzero temperatures in the Canadian sub arctic I can understand why it was fitted.

 

[MiTasol]

Added original dashboard blueprint, and realized that hole for variometer is 79mm like turn and bank indicator (witch is marked as Pioneer) so it is unlikely was German because German gauges as far as I know has 80mm cutouts. Is there possibility that Americans made metric aircraft instruments?

Yes.

In most cases all it takes is a different silk screen (or whatever other tech that Pioneer and other companies used to print their dials). They did this for aircraft such as the P-36's sold to France and the DC-2s & 3's sold to Holland and many other metric countries. Same with the Brits and the many types sold to European countries - Blenheims etc.

EDIT - The American companies also did gauges in Inferial Gallons and other British measurements for British and Commonwealth countries.

As an aside I notice that many software programs coming out of Europe now list the measurement options as Metric and American, not Imperial. This is because the only three countries that now use non metric measurements are the USA and two third world African nations.