Here is a list of all the postings Gary Manuel has made in our forums. Click on a thread name to jump to the thread.
|Thread: Please answer the following two questions if you can.|
Definitely not hyperbole or exaggeration!
I've seen him unloading his gear at our open days. It amazes me how he gets the horse into his caravan
|Thread: Burn Crispy Aviators|
"spun.type.moves" gets you to Don Valley Model Flying Club's access gate
|Thread: Seagull Yak 54 canopy|
|Thread: What's your rate limiting step?|
Repairing after a crash!!!!
|Thread: Boeing 737 Max 8|
CAA have made exactly the right call - for the peace of mind of the travelling public if nothing else.
If I had a flight booked on a 737-8, I'd be thinking of cancelling my tickets until the cause of the crash(es) is known and a solution implemented - even if the solution is just briefing pilots on how to deal with the problem if it occurs.
Edited By Gary Manuel on 12/03/2019 14:17:22
|Thread: Digital incidence meter|
I did need to use a needle file to reduce the square hole size a bit. It wasn't much of a job, which just took a couple of minutes. Better too tight than too slack!
Peter, I know what you mean about the phone edges making the seating and measurements difficult to repeat, but it really hasn't been a problem. The phone tends to sit nice and solid and the measurements can easily be to tenths of a degree.
I got a friend with a 3D printer to print me a set of parts to make myself an incidence meter - details HERE.
The Android app I use is called "Clinometer + Bubble Level", which I think is one of the better spirit level type apps. I've even invested a couple of quid to add "relative" angle measurement and measurements of angles using the built in camera. The App should suit your needs perfectly.
|Thread: Model Museum ?|
I saw the request for info about this model on DVMFC facebook page and some of the feedback the lady has received already.
I must say that I'm not a great fan of Facebook, but when used n this way it can be an incredible thing.
|Thread: Keep Those Old Cordless Tools Going|
I've just tried mine with a 3cell 2200mAh 65c Graphene LiPo and surprisingly, it feels like it's got plenty of power.
I would say it's well worth having a go with your 3 cell LiPo if you keep the mounting arrangement fairly universal so that you can switch to 4 cell when / if one becomes available.
|Thread: Batt, problem mobile drill|
You could always do something like THIS.
I'm very happy with the results.
|Thread: Westonuk cracking value for money.|
On that basis, THESE moon rocks were free. It would have cost much more than $850k to travel there are collect in person .
But seriously, I have found WestonUK to be great value, including the models that bear their name.
|Thread: The Seagull has landed|
The only problem I have with the model is the warped wing. It's exactly where I left it after my last post. I'll get round to sorting it when mojo / health / weather improve. There were no issues with the side mounted Saito.
|Thread: Confirmation of a picture|
A pine headboard and 2 pillows?
|Thread: Biggles' Mess (the renamed cafe!)|
Great news. An anniversary fly-past has been confirmed.
|Thread: Which Watt Meter|
What you are not recognising Pat, is that "R" is not a fixed value. The "Resistance" value is actually made up of the copper losses (impedance) and iron losses (reactance) plus friction losses. Copper losses are proportional to current and behave exactly as you have described, but iron losses are proportional to rotational speed. This effectively increases the value of "R" in these over-simplified formulae.
For a given current (adjusted by prop selection) with a higher applied voltage, the effective value of "R" will be greater, which results in greater losses in the form of heat. This is why a maximum wattage is quoted for a motor and this value should not be exceeded.
Posted by PatMc on 20/01/2019 22:44:35:
Pat - Your second line is incorrect.
It should be heat generated in motor (i.e. wasted power) = current² x (winding resistance) watts.
It is dependent on current squared, which is derived from W=IV, where V can be substituted for IR so that W = I²R. The power wasted is a function of both voltage and current.
I like to think that we are being informative rather than competitive.
Edited By Gary Manuel on 20/01/2019 23:37:56
Sorry to dwell on this, but maximum power is based on a motor's physical ability to dissipate power in the form of heat and is related to it's mass and cooling ability. It's maximum current rating is based on the conductor size within it's windings. I maintain that neither maximum should be exceeded.
I have exactly the same Watt meter as Pat and can recommend it.
Edited By Gary Manuel on 20/01/2019 20:56:21
When choosing an electric setup, CURRENT and WATTAGE are both important. Exceed the maximum of either and you are asking for trouble.
A motor with a maximum current of 45A that runs nicely at (say) 40A on a 3 cell setup may overheat at 40A on a 4 cell setup if the maximum power rating is exceeded.
PS I use a HK Watt meter and can confirm that it works well.
Edited By Gary Manuel on 20/01/2019 17:41:21
|Thread: Best Heating Option For Your Hobby Shed|
Mine's the same type of remote as yours.
Took me a while to find out how to pair it.
|Thread: Ooooh Errrr! Don't know that happened here|
Just a though Adrian.
Could the original damage have been caused by the meter probes you were using to test the individual cell voltages?
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