Hacker News Board Hacker News, browsed like a classic message board
Live data from Hacker News

Show HN: Aviation navigation log on $20 receipt printer

carloslagoa.com

Post reply on HN
Print view View original

121–127 of 127 posts

Re: Show HN: Aviation navigation log on $20 receipt printer

#121

Post by wkat4242 »

konschubert wrote: post #120
wkat4242 wrote: post #114

Earlier quoted context omitted.

Yes the problem is recertification. This is why GA also still uses engines developed in the 50s with associated tech.

We are losing out on so much.

We are yes... Turbodiesel seems to be the answer even though a rebuild is not possible so they need a replacement very often :( On the other hand the unleaded gas engines like Rotax seem to be super reliable in the ultralight category, they are just not certified for real GA. I would imagine that slightly scaled up they could be a real workhorse.

Or perhaps a really small turboprop. I've seen really tiny jets so why not stick a prop on it (because jets are too inefficient at low altitudes). Might help with noise too.

There's so much innovation we could be taking advantage of :'( But we're still using engines designed in the 50s with lead (replacement) and manual choke/mixture that cars have deprecated 30 years ago.

Re: Show HN: Aviation navigation log on $20 receipt printer

#123

Post by tecleandor »

carloslagoa wrote: post #70
tecleandor wrote: post #64

Earlier quoted context omitted.

What's your school, BTW? I've done a bunch of ULM test flights at LEIR and LEMT, and I've always been curious about getting at least an ULM license...

LECU! Mostly PPL & ATPL classes --- unsure about ULM

Thx!

Re: Show HN: Aviation navigation log on $20 receipt printer

#124

Post by simne »

Scoundreller wrote: post #77
chaxor wrote: post #75

Earlier quoted context omitted.

General Aviation still uses lead in their gas, despite it being shown several times in enormous nationwide studies consistently to not be necessary, and often simply requires more cost in maintenance (lead builds up on spark plugs causing a lot of issues). So environmental impact isn't high on their list already, and this BPA issue is very likely going to be completely ignored by anyone in that field.

Yes, but the avgas lead situation is primarily a problem for the people behind/under the aircraft, not inside the aircraft.

From first look, yes, and for more or less modern engines, which really don't need lead.

But for planes, normal age more than 20 years, even exist workhorses with 70 years.

They have very old engine technologies, some literally spread gas on ground (use lead in it to lubricate valves, which are outside, like on old star engines). So even when you walking where such plane was, you will gather some lead.

Re: Show HN: Aviation navigation log on $20 receipt printer

#125

Post by glonq »

palijer wrote: post #46

I've worked in a bunch of restaurants and now work with restaurant software (we're hiring some cool positions if you are interested [1]) The one thing I'd be a bit wary about here is heat making that paper unreadable. I've seen a bunch of kitchens intend to run thermal printers in kitchens, but had to switch to impact printers because how quickly the paper would turn dark in the ambient heat in the kitchen, plus the…

I used to develop smart parking meters, and we used thermal printers in those. You can get paper that tolerates high-temperature environments like the dashboard of a car on a hot sunny day.

Re: Show HN: Aviation navigation log on $20 receipt printer

#126

Post by garaetjjte »

TeMPOraL wrote: post #83
Cthulhu_ wrote: post #66

Earlier quoted context omitted.

Makes me wonder if "you need a receipt to claim warranty" is intentional like that. There's a few apps that can organize / OCR receipts for you, if a photo of a receipt is adequate. I don't actually know any and I may be talking out of my ass but err. I'm sure there are!

Over here in Poland, companies usually require a "proof of purchase", which can be a receipt or an invoice. As a buyer, it's up to you which one you want to receive[0]. There's a special kind of pseudo-invoice called "personal invoice", which is like a VAT invoice except you don't need to be a company or provide a tax ID for it. This is the one you want in any scenario when you expect to hold on to the proof of purch…

>and it's sufficiently non-standard that nobody bothers

Some gas stations do!

Re: Show HN: Aviation navigation log on $20 receipt printer

#127

Post by alanbernstein »

toomuchtodo wrote: post #34
alanbernstein wrote: post #29

This makes me want to buy a receipt printer to use for grocery shopping lists.

I have an unused unit I can ship to you gratis. Email in profile.

Thanks for the offer. I spoke with my shopping coordinator and she wasn't as excited about it as I was, so I should probably pass.
Post reply on HN