• Latest R/C Blog Entries
Gerry__'s blog View Details

My inbox full? Contact me here.

Posted by Gerry__ | Aug 20, 2018 @ 12:15 PM | 6,376 Views
Let me know here if you can't get a PM through.
Comments (0) Add Comment

Eflite Gee Bee Racing

Posted by Gerry__ | May 29, 2016 @ 06:13 AM | 9,196 Views
modell-hobby-spiel 2012 - Gee Bee Air Race (4 min 13 sec)

Comments (0) Add Comment

Foamie Resurrection

Posted by Gerry__ | Apr 05, 2013 @ 04:51 PM | 13,199 Views
Great example of repairing a crashed foamie by Plane Chaos:



https://www.rcgroups.com/forums/show...postcount=8285



https://www.rcgroups.com/forums/show...postcount=8292

...Continue Reading
Comments (0) Add Comment

Aerodynamic Arguments.

Posted by Gerry__ | Jun 19, 2012 @ 01:23 PM | 15,027 Views
When people think they know what they're talking about, but actually, they don't.

aeronaut999 totally destroys some more bogus science:

https://www.rcgroups.com/forums/show...ing&perpage=25

https://www.bou.org.uk/dynamic-soaring/

Effect of wind on airplane / aircraft flying (head / tail / cross/ gust) (7 min 1 sec)


Go to 0:11 for the nonsense part.

And you can't tell them they are wrong because of this: https://en.wikipedia.org/wiki/Dunnin...3Kruger_effect

Quote:
Originally Posted by Rampage
The steady headwind is all it needs to continue to create lift and therefore fly.

The determining factor here is how long the pilot can continue to fly the aircraft as it's groundspeed takes it out of visual range.

A glider in a steady headwind capable of keeping it aloft, while being controlled in a manner that prevents it from turning downwind or otherwise crashing, can stay aloft until it's receiver battery dies and that control is lost.

It's essentially a kite without a string, and kits don't need motors. They also generally don't have airfoils. All they need is angle-of-attack and a headwind and they can stay there indefinitely.
https://www.rcgroups.com/forums/show...5#post34812207

Quote:
Originally Posted by DrewC

A tail wind effectively reduces air speed ...

https://www.rcgroups.com/forums/show...&pp=25&...Continue Reading
Comments (9) Add Comment

Parkzone Spitfire Mk. IX

Posted by Gerry__ | Mar 26, 2012 @ 02:49 PM | 13,465 Views
I had the second flight on mine yesterday. Wind was about 5 -10mph, so only just inside my comfort zone.





...Continue Reading
Comments (1) Add Comment

Hobbyking Mosquito

Posted by Gerry__ | Jul 06, 2011 @ 03:47 PM | 17,039 Views
I've just purchased a Hobbyking Mosquito.
Comments (5) Add Comment

Parkzone P-51 Restoration

Posted by Gerry__ | Jun 06, 2011 @ 04:04 PM | 14,907 Views
I've just picked up an old P-15 for a fiver at a boot sale:[IMG][/IMG]

[IMG][/IMG]

[IMG]...Continue Reading
Comments (1) Add Comment

How To Prolong The Life of Your LiPo Batteries

Posted by Gerry__ | May 16, 2011 @ 12:08 PM | 20,050 Views
Nice article about lipo management by George Worley, of www.4-Max.co.uk: http://www.4-max.co.uk/pdf/prolong-life-lipo.pdf
Comments (2) Add Comment

Alfa Mig-15

Posted by Gerry__ | Apr 23, 2011 @ 07:14 AM | 15,025 Views
Nearly five years after purchase and I finitely got my Alfa Mig-15 ready to maiden! Anyway, reviewed this thread:
https://www.rcgroups.com/forums/showthread.php?t=720677 for best way to maiden and went for a ROG.

No problem:




...Continue Reading
Comments (0) Add Comment

The Downwind Turn

Posted by Gerry__ | Feb 15, 2011 @ 02:14 PM | 15,846 Views
The idea of turning from upwind to downwind is something that often confuses model and full scale pilots alike. It has also been know to confuse the CAA (Civil Aviation Authority).

In this excellent article by a well renowned South African instructor, all is explained.

http://www.avcom.co.za/phpBB3/viewtopic.php?f=9&t=61963 but you are required to register to view.

http://www.gbfs.co.za/images/Dragons.pdf
Comments (3) Add Comment

Best Beginner Plane?

Posted by Gerry__ | Jan 13, 2011 @ 09:01 AM | 17,753 Views
This often asked question will generally boil down to a choice between the Mupltiplex EasyStar (EZ*) and the Graupner Electro Rookie.

Well, I think the Rookie is better than the EZ* in pretty much every way and with that in mind I offer these objective Rookie plus points:

1. the wings have a much better designed interlocking arrangement.

2. The canopy is much more secure.

3. The cockpit is bigger and more easily accessible.

4. The tail is detachable.

5. The model fits back in its own box for ease of transport.

6. The kit comes with a brushless motor and ESC as standard.

7. Power is easily upgraded by adding a 3s lipo.

8. There is an integrated ballast system.

9. Ballast is included with the kit.

10. The battery secures without need for velcro.

11. The fuse is re-enforced with a carbon rod.

12. You get two props supplied. One for 3s and one for 2s.

13. Raised CoG points moulded into the wings.

Personally I think the Rookie handles much better than the EasyStar too.

Rookie thread: https://www.rcgroups.com/forums/show....php?t=1269117


Latest EasyStar thread: https://www.rcgroups.com/forums/show...=1363621&pp=30



Both are fine planes and will serve any beginner well, but I believe that the Rookie is of a significantly better design that offers a much better pathway into the hobby than the EZ*
Comments (3) Add Comment

The effect of wind on the aircraft in flight

Posted by Gerry__ | Sep 12, 2010 @ 06:35 AM | 20,780 Views
http://www.bmfa.org/publications/fil...02FullBook.zip


Quote:
BRIEFING 3 - THE EFFECT OF WIND ON THE AIRCRAFT IN FLIGHT

There is probably more nonsense talked and written on this subject than any other connected with the practical side of flying! In reality, the matter is very simple - it is just that so many people find it hard to accept.

Provided that your flying area is clear of vertical obstructions (houses, trees, hedges, hangers etc.) the wind will blow fairly steadily from a constant direction once the aircraft is above about 50ft. Below this height, and depending on the surface of your flying site and the proximity of obstructions, there will be some turbulence both vertical and lateral.

Once you understand this principle you will see that a turn from an into wind heading to crosswind will appear to be a fairly sharp turn when seen from the ground and a turn from downwind to crosswind will appear to be slow and elongated. You must accept these visual effects for what they are and remember at all times that if you have not altered your throttle setting and the aircraft is at constant height then your airspeed is constant and the aircraft is in no danger of stalling.

Once the aircraft has climbed out of this turbulent level it is, in effect, flying in a steadily-moving block of air. Thus, with a windspeed of 10 mph the block of air in which your aircraft is flying is moving downwind at a speed of 10 mph. So, your aircraft which
...Continue Reading
Comments (5) Add Comment