I Feel Lonely At The Moment.

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I am pretty sure that I have no clothes that correlate to a suit.
Last time I went to church, I wore jeans and a long-sleeved tie dye t- shirt.
And that was BEFORE Covid 19!

I was kinda chucked out of a church once. Well. Not exactly chucked out but made to feel unwelcome? Long story! Haha.

People who fix stuff and make stuff are the best

What I have seen personally is that my great big local Walmart was down to only 1 or 2 sewing machines the last 3 times I was in there;
Even the display models were being sold!
People (women) are stuck at home, bored, intimidated by this Coronavirus, the creative instinct pops up!
Knitting yarn is selling out as well!
I think that is THE best way to focus energy and use your mind; learn something new, and create things!

My daughter likes making model aeroplanes, her favourites are commercial airlines.

Creativity is soo important. I enjoy the thinking behind designs.

yes she loves the design too, how the design fits in to aerodynamics

she also likes model buildings and puzzles

Yes. And how they handle in the air at different speeds. Why higher speeds needed swept back wings to give stability at higher speeds but lower speeds needed straighter wings for stability.

It is quite a bit like bicycles and bicycle frame design. Take the conventional diamond frames and one could have several similar looking bicycles built with the sae frame material and parts all with different handling characteristics according to the angles and lengths of the wheelbase etc. Long wheelbase adds stability, especially important when carrying heavy loads, and short wheelbase adds acceleration. Then there were designs tried for tima trialling use (Not allowed for racing due to rules) like the Baines Flying Gate, which had the wheelbase shortened for faster acceleration by re-designing the frame accordingly to tuck the rear wheel right forward. I have ridden one and it does work. As an overall machine my Raleigh racing bike which I believe was made by their smaller UK factory just for the race teams and they sold a few frames and forks to the general public which just had the words "Raleigh" on them (No model name), seems to preform as well. It has lots of go! It may be slightly better as an all round package, but the Baines certainly goes!

You are quite accurate;
‘Dismal’ is a good word for these current times.
We can sew and knit, and try to encourage each other on WP.
I hope for the best for all of us.

It depends on the tyre sizes and the TPI's (Threads per inch) the tyre has been made etc. Some tyres would blow out at 60 to 80 psi and other tyres would be almost flat at that pressure. It also depends a little on the weight of the rider and the intended use of the tyre as well.
The pressures are marked on the side of the tyre. If it only displays one psi rating, that rating will be the maximum rating so don't go beyond it.
Lets say we had a typical 26" mountain bike tyre and it was a tubed type. (Here in the UK they only changed to 27.5" around 5 or 6 years ago). They do vary from one tyre to the next, but the most common psi rating for these is 40 to 65psi. This rating will be an absolute maximum of 65psi where one would only take it that high if one is road riding and if the cyclist happens to be a heavy rider (As opposed to someone who is a lightweight rider who 40psi would be more then sufficient). For offroad riding 40 would be the max rating BUT it depends on the terrain. If the terrain is rocky then 40 is better. If it is mud then a lower pressure again is an idea BUT I would not lower it to less then 30psi. It is not recommended because one could hit a rock and bottom out onto the rim. Having said that some cheap tyres that may have a 40 psi or even a 60 psi rating... They are so cheaply made with so few TPI that I would not even take the tyres up to that amount!

One thing. If the tyres are old and cracked then if one is going to use them, it is unwize to go for their max psi and even the lower one would be too much! But it is not wize to ride tyres like that at all.

Some mountain bikes now run on tubless tyres where one can ride them at much lower pressures for churning through mud then if they were the conventional tubed type.

Do not confuse tubeless with tubalars which are often used for road racing and time trialling. I used to use tubalars and I used the sticky tape method to fix them to the rims but others used the glue method. Some of these tubalars have very high pressure ratings. Someone I worked with had to hunt round for a pump because we had nothing in the bike shop that could pump to the 250 psi pressure he needed to se. They were silk tubalar tyres and were very expensive. Each one cost the same as a budget entry level bike.
I tend to use the conventional bicycle tyres these days because if I puncture I can change the tube and the tyres are easier to get hold of etc.

Racing bikes usually have ratings above 100 psi. Touring and hybrid and leasure bikes running on 700c tyres could be anything between around 50 to 120 or even higher. Varies depending on tyre quality (TPI rating etc) and the width and depth of the tyre. The lower and narrower a tyre, the more pressure they need to take to prevent them squidging too much and bottoming out if one hits a bump.

60 to 80 psi is probably about right for most touring bikes or hybrids running on a 700c or a similar type of wheel, so if the tyres are rated at 60 to 80, one can decide what sort of use one is using the bike for and vary accordingly.

The tyre ratings (You may need your glasses) are marked on the side of the tyre wall. They will be there somewhere even if they are marked in bars instead of psi's.

I know I have not really answered much, but it might help.

I hope what I wrote made sense?

Thanks MG, its a hybrid bike but the tyres look and feel like mountain bike tyres.

Good idea to check the tube - I used my mobile phone as a magnifying glass and the tube has 40-60psi max on it.

I'll make sure she pumps no more than 60Psi into each tube

thanks