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First aerobatics! (Read 741 times)
Aug 23rd, 2009 at 11:38am

machineman9   Offline
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I thought I might share my great experience today on the V. We were doing an Air Experience Flight with cadets at DCAE Cosford which we typically do every few months or so. This time was my 5th flight doing AEF and I was in the first group to get up in the skies.

I was quite fortunate as the weather was going to get worse later in the day. Currently we had a nice clear spot in the sky perfect for some aerobatics.

I climbed to about 5000 feet and held it there whilst getting lined up in the clearest part of the sky... Then to my amazement the pilot told me that he would teach me to do the aerobatics myself. I've done aerobatics before, but never actually performed them by myself! I was really looking forward to it as it is a lot more fun when done yourself.

So we dived down to about 135 knots and pulled up sharply doing about 4g or there abouts. We kept the wings level going over the top of the loop then descended back down and pulled up to lose speed and recover height. Then I did the same on my own and I thought it went quite well actually. I think I managed to pick it up to about 4.5g and the view was spectacular  Shocked

Next we did the same start up but this time a barrel roll. So pitching up and then rolling it around. I don't think I quite made the same heading that we started on, but it was also good fun.

Lastly we did one of my favourite aerobatic moves... The half cuban. Not the trickies nor the most extreme move you can do, but it was still fun none the less. Again diving to pick up speed, pulling up (pitching to about 45 degrees or so), holding it there for a second then yanking the controls down to the bottom left corner and flipping it around. I don't think I did this one with quite as much grace as the others but it turned out quite alright and it was a great flight indeed.


I'm still buzzing a bit  Grin

It has definately reminded me as to why I want to become a pilot in the first place too. It was a really great flight indeed. Only 25-30 mins or so, but a lot of flying on my part and some fun turbulance on take offs and landings.

Cheers.
 

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Reply #1 - Aug 23rd, 2009 at 3:15pm

masmith   Offline
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AEF’s were good fun!

I had a few when I was a cadet I seem to remember that it was 120 Knots that you had to go into a loop at   Huh

If you enjoyed that why don’t you try go for a GS, First time going solo even in a 90hp G109, is a geater buzz than doing aeros in a G115 Tutor Grin
 

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Reply #2 - Aug 23rd, 2009 at 4:46pm

C   Offline
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masmith wrote on Aug 23rd, 2009 at 3:15pm:
I had a few when I was a cadet I seem to remember that it was 120 Knots that you had to go into a loop at   Huh



130 IIRC. Wink
 
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Reply #3 - Aug 23rd, 2009 at 4:58pm

Fozzer   Offline
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I would have a bloody Heart Attack if I tried that... Shocked..!

Defying the Laws of Gravity by getting out of bed in the mornings is dangerous enough for me!... Shocked... Wink... Grin....!

Paul...going loopy!... Smiley...!

... Grin... Grin... Grin...!
 

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Reply #4 - Aug 23rd, 2009 at 5:29pm

machineman9   Offline
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Yeah I'm sure you can do it at lower speeds but probably just those extra few knots gave me a little longer to fit the loop into.

I've applied for my gliding scholarship... I did the first 2 GICs but as neccesary as they may be, I think I did most of the GIC course in my first AEF flight!

The Vigilant is a fun little glider but I am a man made for 'real' powered flight  Grin
 

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Reply #5 - Aug 23rd, 2009 at 5:49pm

masmith   Offline
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Quote:
The Vigilant is a fun little glider but I am a man made for 'real' powered flight   Grin


You've gota start somewhere Wink
 

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Reply #6 - Aug 23rd, 2009 at 6:12pm

EGNX   Offline
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Pffft... Engines!

You don't need those to do aerobatics!... Nothing beats the eerily silence and creaking of the airframe at the top of the loop!  Wink Grin
 

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Reply #7 - Aug 24th, 2009 at 7:30pm

olderndirt   Offline
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EGNX wrote on Aug 23rd, 2009 at 6:12pm:
Nothing beats the eerily silence and creaking of the airframe at the top of the loop!  Wink Grin
Call me old fashioned but I much prefer the sound of internal combustion at the top of the loop  Smiley.
 

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Reply #8 - Aug 24th, 2009 at 7:34pm

Fozzer   Offline
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olderndirt wrote on Aug 24th, 2009 at 7:30pm:
EGNX wrote on Aug 23rd, 2009 at 6:12pm:
Nothing beats the eerily silence and creaking of the airframe at the top of the loop!  Wink Grin
Call me old fashioned but I much prefer the sound of internal combustion at the top of the loop  Smiley.


....to me, the comforting sound of a combustion engine generally means that I am very likely to survive the flight!...Wink... Wink...!

Paul...G-BPLF... Grin... Grin...!
 

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Reply #9 - Aug 25th, 2009 at 7:50am

machineman9   Offline
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Some people are, however, much more daring and talented enough to use the environment as their engine.

Sadly I am not, and so I too rely on burning fuel to keep me up in the skies  Grin
 

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Reply #10 - Aug 25th, 2009 at 8:36am

Hagar   Offline
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Glad you enjoyed your experience. Wink

Not sure I understand why you think gliding is any more daring than powered flight. Also, why doing aerobatics in a glider requires more talent than in any other type of aeroplane. It's all a matter of proper tuition.

My opinion on this is no secret. I firmly believe that a gliding course should be a mandatory requirement before taking PPL instruction. Then we might have pilots that actually know how to fly.
 

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Reply #11 - Aug 25th, 2009 at 9:07am

machineman9   Offline
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I think it's just because in powered aircraft you have the engine to take you home. I know engines can fail, but I'm guessing mis-judgement in gliding (coming in too short or too long) occur more than engine failures in flights.

So I just think it takes more skill. You've got to know how to optimise the aircraft in flight. Throttles are quite basic... A push pull which even I can work well (to a point). Using the terrain, thermalling, etc. Just seems more to it and there's no backup engine.

I didn't say aerobatics in gliders require more talent, but probably more caution. Every time I go gliding there is usually someone talking about how the wings will snap off in high g or other aerobatic circumstances. And to a point I can definately see why. Loops and stalls don't seem to be too bad and can certainly be done, but much more than that in something as large as the Viking probably should be avoided. I don't know the exact aerobatic limits of motor or motorless gliders but it probably takes more attention to make sure you stay within the limits.

But I do agree that pilots should have experience at gliding before they qualify. Even if it's just a few hours of teaching then atleast they know how to respond to engine failure issues. My friend had an engine cut out once... But it was alright because he was in a glider  Grin  (yes, it did happen)
 

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Reply #12 - Aug 25th, 2009 at 10:34am

EGNX   Offline
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Aerobatics are the easy part! Getting the height to do them is the difficult bit!

I agree with Hagar. All pilots should have some gliding tuition just so they can experience flying in its natural form.

With regards to the Vigi and Viking wings they most certainly wont just snap off! They may look flimsy, but they aren't 'alf strong! It would take a whole lot to break one from over straining the airframe. But we do like to tell cadets the opposite just to scare them!

Both the Viking and Vigilant are fully capable of aerobatics... In the civy world there is no real restriction on the aerobatics they can perform.

The Viking is capable of pulling -3g to 6.5g... However to preserve the airframe HQAC have limited them from 0g to 3.5g. They can only perform loops, chandelles and spins but there are talks of them introducing barrel rolls. They also brought the VNE back from 135kts to 119kts. Which in itself means you can't really exceed 4g anyway, even using full control deflection at max chuff (Which isn't even allowed).

When the Vigi was brought in it was tested for its aerobatic capability but HQAC deemed it unnecessary and there was high risk that under experienced pilots would overspeed the engine and cause damage worth too much £££!
 

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Reply #13 - Aug 25th, 2009 at 11:35am

olderndirt   Offline
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No argument here about gliding being the ideal way to start your flight training.  Luftwaffe pilots, prior to WW2, started that way and you saw how good they got.  The only real gliding negative is the time spent getting towed aloft then searching for lift but weigh that against the current price of 100LL and it becomes just a matter of preference.
 

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Reply #14 - Aug 25th, 2009 at 4:54pm

Tom...   Offline
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5th flight! Wow i got to fly aerobatic maneuvers on my second flight! Tongue Just ask and usually they oblige Smiley
 

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Reply #15 - Aug 25th, 2009 at 7:07pm

machineman9   Offline
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I did my first aerobatics on my third flight (second flight was a bit cloudy) and my fourth flight was mostly using trim and taking things more leisurely. Besides, now I am starting to feel much more confident behind the controls. Just being able to keep it under control much better which I think reassured me to be able to do these things.

I didn't know the gliders were that capable! Wouldn't cadet pilots have to pass an aerobatics rating anyway before doing loops etc in gliders? With flying you're with pilots who have lots of hours and are extremely capable. With gliding, and no offense but it's just what I've seen, it is typically cadets who have just achieved the required hours and are then let loose. My friend had something like 15-20 more hours logged than the pilot flying him at a GIC.
 

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Reply #16 - Aug 26th, 2009 at 4:22am

EGNX   Offline
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Sadly in some instances that is the case. With some junior pilots it does feel like they were pushed to the required safe standard and 'let loose' without mastering some of the basic techniques like sharing thermals. Gliding isn't hard, but it isn't easy, however it's easier than powered flight. You have less things to worry about and if you cant find lift then just don't stray to far away from the airfield.

The danger comes when you end up in tricky situations, like a launch failure at 50ft or only having to thermal with 3 other gliders at the same height and maintain 100m separation.

But that is the beauty of a VGS, giving cadets with the potential the opportunity to become instructors at such a young age.

And yes! You do need to be aerobatics rated by Central Gliding School before you are allowed to do them and be at least a C category instructor. It's just a pain in the winter as your aerobatic rating only has a 90 day currency!
 

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Reply #17 - Aug 26th, 2009 at 11:17am

machineman9   Offline
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Yeah when I was in the car to see my grandmother a few months back we flew past a VGS somewhere and there were 3 vikings all thermalling in the same patch with what didn't seem like much separation but was great fun to watch.

With a 90 day limit I'm guessing it isn't really cost effective to train everyone and pass them as aerobatic pilots so often.
 

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Reply #18 - Aug 26th, 2009 at 1:33pm

masmith   Offline
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Quote:
So we dived down to about 135 knots and pulled up sharply doing about 4g or there abouts. We kept the wings level going over the top of the loop then descended back down and pulled up to lose speed and recover height. Then I did the same on my own and I thought it went quite well actually. I think I managed to pick it up to about 4.5g and the view was spectacular  Shocked


Quote:
I had a few when I was a cadet I seem to remember that it was 120 Knots that you had to go into a loop at  Huh


Quote:
130 IIRC.  Wink


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Yeh you were right,
it was werid unless I remember wrong I was told 120?

Smiley

 

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Reply #19 - Aug 26th, 2009 at 1:53pm

machineman9   Offline
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Well I guessed on the g force but the pilot definately said to wait until 135kts.

May I ask, where is that loop summary from? I don't think I've seen it before.
 

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Reply #20 - Aug 26th, 2009 at 3:22pm

C   Offline
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masmith wrote on Aug 26th, 2009 at 1:33pm:
Quote:
130 IIRC.  Wink


[img]


Yeh you were right,
it was werid unless I remember wrong I was told 120?

Smiley




Blimey. How the memory fades. Could have sworn it was 130! Grin

Ah well, can't argue with the book. Mind you, I have my excuse; over 3 years since I flew a Tutor! Smiley
 
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Reply #21 - Aug 26th, 2009 at 3:33pm

machineman9   Offline
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I'm sure it's easily doable at 120, depends how much of a hurry you're in and how far you are willing to stretch the aircarft.
 

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Reply #22 - Aug 27th, 2009 at 8:50am

C   Offline
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machineman9 wrote on Aug 26th, 2009 at 3:33pm:
I'm sure it's easily doable at 120, depends how much of a hurry you're in and how far you are willing to stretch the aircarft.


You could probably do it down around 100 fairly easily - it wouldn't look good though!
 
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