Re: Which Tach?

WingingIt74 Mon Jan 23, 2012 7:33 pm

I tried the iPhone app, I think it's a believable number. The 051 came out with a 17,4XX. The numbers changed to fast to get a good reading and it doesn't save the highest reading.

WingingIt74 Mon Jan 23, 2012 7:51 pm

I'm anxious to compare it to a real tach.

nitroairplane Tue Jan 24, 2012 1:56 am

What app is that?
Not rc speedo?

John Goddard Tue Jan 24, 2012 4:14 am

I think you might be surprised by the iphone..

I've got the windmeter app which I thought
"that can't possibly be accurate"..

Hello
It seems to be just as accurate as a £300 device.

As for 'real' tachs I use a Turnigy V V cheap on the bay or Hobby King
up to 9 (ho ho) blade props.
BUT
The power button is proud of the casing so batteries do go down
with monotomous regularity cos it gets put away 'on'.

WingingIt74 Tue Jan 24, 2012 8:34 am

nitroairplane wrote:What app is that?
Not rc speedo?

This one...

WingingIt74 wrote:RacingTach
http://wpsm.free.fr/en/racingtach.html

microflitedude Tue Jan 24, 2012 8:48 am

John Goddard wrote:I think you might be surprised by the iphone..

I've got the windmeter app which I thought
"that can't possibly be accurate"..

Hello
It seems to be just as accurate as a £300 device.

As for 'real' tachs I use a Turnigy V V cheap on the bay or Hobby King
up to 9 (ho ho) blade props.
BUT
The power button is proud of the casing so batteries do go down
with monotomous regularity cos it gets put away 'on'.

I've found mine guzzles batteries also.... Huh...

gcb Tue Jan 24, 2012 9:40 am

microflitedude wrote: $100, and it doesn't even have a four-blade setting. The $20 Tach came with that...

Use a lot of them four bladers?

George

SuperDave Tue Jan 24, 2012 9:46 am

At $25 I don't believe you'll find a better tach than the Hobbico Digital Mini-Tach.

Tower Hobbies PT# HCAP0401

(Mine fits perfectly into a zippered case for an old Norelco electric shaver)

microflitedude Tue Jan 24, 2012 9:53 am

gcb wrote:
microflitedude wrote: $100, and it doesn't even have a four-blade setting. The $20 Tach came with that...
Use a lot of them four bladers?

George

A couple, but it seems that it be a rather easy function to add.

PV Pilot Tue Jan 24, 2012 11:13 am

gcb wrote:I have a TNC tach but they are not available now. Tony sold his company and has since passed away. I understand that the company that bought him out updated the electronics and renamed it. Sorry, can't remember the new name.

George

Edit: These folks make it now. Don't know which shops sell it, but it is an excellent tach:

http://www.rcheliworld.com.au/index.php?route=product/product&product_id=2107

I put that link up on page 1 George, It's made by Fromeco, MADE IN THE USA, in a little town called Sandy, Oregon not to far from here. They used to be $120. If you click on the "find out more" tab,,then click on specifications, it's shows the 4 blade capability.
http://www.fromeco.org/results.aspx?SearchText=tach

WingingIt74 Tue Jan 24, 2012 11:19 am

I picked up a laser tach on ebay, I'll let ya'll know how it works.

microflitedude Tue Jan 24, 2012 12:55 pm

WingingIt74 wrote:I picked up a laser tach on ebay, I'll let ya'll know how it works.

Linky?

WingingIt74 Tue Jan 24, 2012 1:03 pm

http://www.ebay.com/itm/120695011534?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649

They are running an ebay sale, so it was a good price. Besides, I can use it for other things besides props.

gcb Tue Jan 24, 2012 4:49 pm

PV Pilot wrote:I put that link up on page 1 George, It's made by Fromeco, MADE IN THE USA, in a little town called Sandy, Oregon not to far from here. They used to be $120. If you click on the "find out more" tab,,then click on specifications, it's shows the 4 blade capability.
http://www.fromeco.org/results.aspx?SearchText=tach

I have the older version that I got directly from Tony when he had his company in Woodstock, NY, about 10 miles from me. Tony used to make a couple of types, one for turbines, one for props. Mine is for props and has a 10x multiplier on it for checking idle speed. Tony was by trade an electrical engineer for IBM. I met him during that time when he joined our local RC club. During his last years Tony didn't fly much because of his decreasing eyesight. Years ago there was a profile of him on the net...probably still there somewhere. Good man.

George

ahrma_581 Mon Apr 23, 2012 7:39 pm

WingingIt74 wrote:http://www.ebay.com/itm/120695011534?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649

They are running an ebay sale, so it was a good price. Besides, I can use it for other things besides props.

Curious how it worked out. From looking at that and other auctions for same device, it appears you have to attach a piece of sticky reflective tape to the prop?

PV Pilot Tue Apr 24, 2012 2:06 am

I picked up a similar lazer tach off of amazon for about $10 shipped, came with a zipper case, batts and a lenght of tape. I used a white junkyard paint pen and marked the backside of 1 blade, of a two blade prop for the reading. Never did use the tape as the adhesive didnt stick very well.

The tach on the other hand is accurate, and is not affected by the fluro bulbs in the shop.

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