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wookman
1 hour ago, Phil.Taylor said:

Unpacked the plane - only to find that the wing bolts & allen key were missing 😢

Who's  a silly billy then? On the upside, at least you hadn't driven all the way to Whitesheet.

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John Minchell

Time for a check list covering all models or a mini one with each model maybe? 

As well as - sunglasses, goggles, gloves, hat, sandwiches, flask, painkillers etc - you know the drill.

John M

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SoggyBoots
6 hours ago, John Minchell said:

Time for a check list covering all models or a mini one with each model maybe? 

As well as - sunglasses, goggles, gloves, hat, sandwiches, flask, painkillers etc - you know the drill.

John M

I've taken to keeping spare wing bolts for most of my planes in my TX case with the tools I use to fasten them. its a nightmare when you turn up and can't fly especially when the slope gods seem to only give you a few hours after work to fly and not the weekends which are usually bad conditions.

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Phil.Taylor

Spot the plane - round 2 

Yes - theres definitely a plane in the sky - XPro electric

No forgotten bolts this time.

Phil.

20210416_182620.thumb.jpg.7a1ee7d38b56c89fa24d9ad02b7452be.jpg

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Nicholls

Spotted it! Well the white fuselage is recognisable above a curly wisp in the sky centre stage

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Jef Ott

After playing hunt the allen key too many times, I made a place for an allen key in each model (usually with magnet to secure it), and put a 4" piece of bright coloured insulation tape on each one (so that when you drop it in the grass you can find it). 

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SoggyBoots

Who says you can't teach an old dog new tricks.

My friend Pat has wanted to fly since he was a teen but he never had the resources so today I took him out for his first flight on a small slope with a buddybox.

After a quick introduction he was off keeping it level and doing slow passes. We packed up after an hour and fifteen minutes .

IMG_20210421_191808_HDR.jpg

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oipigface
On 16/04/2021 at 21:07, Jef Ott said:

After playing hunt the allen key too many times, I made a place for an allen key in each model (usually with magnet to secure it), and put a 4" piece of bright coloured insulation tape on each one (so that when you drop it in the grass you can find it). 

One experience of ‘hunt the car key’ was enough for me. I dropped it in the heather and bilberries on Mickey’s after a comp some years ago. It took Clayton Landells and I a good half hour to find it. Well, more Clayton than me. Since then, I’ve always carried the key to my transport on a brightly coloured lanyard.

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Superb day on The Crest yesterday good bunch of mates and wall to wall sunshine (not The Bwlch at all) 40mph on the edge and the video gives an idea of the rotor .Still 8 pilots and nobody really broke anything so whats not to like ...other than Welsh pubs are still closed .....😷

 

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  • 2 weeks later...
Phil.Taylor

This evening didnt quite turn out as planned. After many years of messing things up, I thought I was pretty good at spotting those little things that have big consequences - tonight I'm back at the back of the class after a big lesson in looking out for the tiny little things.

It should have been the maiden flight of the Ecirtech Stellar, after finally finishing the radio installation & setup last night. Plane assembled, power on, controls check - all working & going the right way - motor check - fine. Here goes - half throttle - big chuck - upwards a bit. Plane goes into a diving curve towards the ground before I could get my fingers back on the sticks - crunch. Speechless...

Way off trim? - maybe - but the CofG was ok. Disassemble the broken wing tips - sit down for a think... Power it back up & check elevator position - most definitely some down elevator (see photo) - but not enough to be obvious in the pre-flight check. Savox elevator servo gone bad? - maybe, but they are fine on another plane. Take the wing centre section off - servo centred ok. What else could it be? - then the slow realisation - the locknut on the elevator clevis was loose - which means that - the clevis could jiggle & rotate on the 10 mins walk to the field. So - unlocked lock-nut = broken plane 😢 The ironic thing is that I made sure that all 5 of the other linkages had well locked nuts. The elevator escaped because I cheated & used Tx sub-trim to finally centre it - if I had mechanically centred it I would have locked it tight.

Phil.

with a very sad Stellar

Stellar_broken.thumb.jpg.811a467758c18573db4ac871f5463b0a.jpgStellar_ele_1.thumb.jpg.5b1318d2b2d1ab71b7bc25ccd536f108.jpgStellar_ele_2.thumb.jpg.ae0488e162568ff52ea4ebd35206dd2a.jpg

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Redbird

Oh what a shame. Dont you glide test them initially?

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wookman

Ouch.

On the upside the lesson has been relearned with what looks like a relatively light repair being a woody. If yo wan to be really positive about it, the repair is under opaque covering and so will not be seen. And they always fly better after a bump.

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  • 4 weeks later...
Ian F3F

Another superb day on the crest yesterday.

Thermals, sunshine and great company- what's not to like.  and possibly too much ballast at times:-)

 

Ian

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  • 2 weeks later...
oipigface

It’s taken me a while to get round to posting this, but now’s the time. 
 

I spent a lot of time during the lockdown refurbishing my old Pitbull. It’s the one I recorded my PB with 6 years ago, and I’ve become more attached to it than I usually do to inanimate objects. Some of you will remember the repaired gashes in the wing that it acquired early in its life when it decided to tangle with that big tree at the bottom of the NW slope at Whitesheet. I repaired these very carefully immediately after the accident, and flew the plane successfully for over 3 seasons with unpainted carbon fibre patches on the wing. I put it away when new toys beckoned and I couldn’t face repairing the broken nose or any of the little gouges, scratches and such like that a working F3F model nearly always acquires. The RDS pockets were also knackered, yielding more play than is consistent with fast flying. I also treated it to new servos receiver and battery. So given there was no flying during lockdown, I set to with epoxy, cloth, paint and elbow grease and a Baudis LDS system to put it back to rights.

Wednesday at Whitesheet came the moment of truth. It was a bit like meeting an old friend after a few years’ separation. Couple of clicks of down and she was back in the groove. Lovely. The setup needs some work, of course, although it is as close as I could make it with the new servos and drive system. 
 

The only downside to the day came to light yesterday, when I was intending to work on the setup. I seem to have lost the wing joiners somewhere. Most likely they are still on the grass verge just before and on the opposite side to the gate leading to the SW bowl. I have got another set, but if anyone finds a pair of Pitbull joiners at Whitesheet, it would be nice to have them back! They are joined in the middle with servo tape.

FD9B6990-99E2-4B12-B6F7-DB78165C256D.thumb.jpeg.449be7d672c26023199ee4e178844963.jpeg
 

7791D36D-2457-490F-8070-2AA5CC23F544.thumb.jpeg.f871a2854f1b93c7493aa8b41afc137b.jpeg
 

4A108E45-84DC-44E4-91F1-0F43F9944ADA.thumb.jpeg.66241ea303783590058b25b546e5e477.jpeg

 

 


 

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Jef Ott
On 07/05/2021 at 21:37, Phil.Taylor said:

the other linkages had well locked nuts. The elevator escaped because I cheated & used Tx sub-trim to finally centre it - if I had mechanically centred it I would have locked it tight.

Did the pushrod somehow rotate then? Struggling to fully comprehend how, after centring it with subtrim, the clevis then moved more than a little bit along the pushrod.

As was said by someone else, a test-glide over Keilkraft grass before committing to power on, might have saved you a couple of hours work, and might again next time you try it. (I'm not convinced you have completely found the problem.)

Good luck.

Jef

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Phil.Taylor
1 hour ago, Jef Ott said:

Did the pushrod somehow rotate then?

Good luck.

Jef

With the tail off - and the elevator clevis NOT locknutted to the pushrod end (loose fit - some go on tight) - the clevis could & did jiggle & rotate on the pushrod end - 15 minutes walk to the field with the plane in a glider backpack, enough to jiggle/rotate it well out of trim. 

A test glide would have met the same fate - nosedive. The only thing that would have been recoverable would have been to launch left-handed with my right hand on the Tx stick - hate doing it but might try next time. Still havent plucked up courage to fix the Stellar yet.

Phil.

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John,

 

Jefs response may have triggered another thought , has the bond between the pushrod and the adapter broken down so it can move at all ....the impact (if any) from landing may have pushed it back home 

Andy

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Jef Ott
4 hours ago, Andy_B said:

John,

 

Jefs response may have triggered another thought , has the bond between the pushrod and the adapter broken down so it can move at all ....the impact (if any) from landing may have pushed it back home 

Andy

That's the sort of thing I was thinking might be the deeper problem, but I'm struggling to understand at what stage the subtrim was adjusted - if it was before the walk, it served no purpose if the tailplane was then removed and refitted (obviously any lack of rigidity in the tailplane mounting, or unrepeatability of its location will hugely affect the elevator trim). And what about the other end of the pushrod - is that lock-nutted, or free to rotate?

If the subtrim adjustment was after the walk, the relative position of the clevis on the pushrod would be irrelevant, unless it was actually nearly falling off the pushrod and giving an unacceptable amount of flex.

Only trying to help, but I think I sensed a little negativity in Phil's response, so I am not going to say any more on this subject now, other than to wish him luck again.

Jef 

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