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Author Topic: Lee's Hobbies Bristol Scout Kit  (Read 5761 times)
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RalphS
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« Reply #50 on: November 08, 2018, 09:48:49 AM »

  How is it these days?

Hi Jon.
Prompted me to go into the stores and open the cardboard box that has contained it since 2017 Nats.  I flew it into a wall and it needs a new propshaft.  Other than that nothing has come unstuck.

I thought that a poppy would be appropriate.  The lantern is genuine 1915 lantern brought back from France by my father's uncle.  It folds flat for transport and storage - made in Birmingham.

Ralph
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Jack Plane
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« Reply #51 on: November 09, 2018, 12:36:22 AM »

That looks very poignant Ralph, and glad your Scout was only slightly bruised.  We’re fascinated by our subject planes and love building and flying models of them, but of course the technology was very basic and conditions grim, especially for those in the earth.

In 1916 my own grandfather was approaching an age to be conscripted. But, being born in the Russian empire from which his family had not long before escaped atrocious poverty and persecution, and the deal between the Allied powers being that conscripts were sent back to fight for the countries of their birth (thus a Frenchman settled in England would have to serve with the French army), his family packed up again and took ship to South Africa.

Let’s hope my Scout flies here in Nijmegen and well shy of any walls!
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FreeFlightModeller
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« Reply #52 on: November 09, 2018, 06:03:10 AM »

Very nice Ralph .... I have been looking at putting a little display in my workshop window on Sunday myself.
I would be more than happy if it has the same effect as yours  Smiley

I'm loving the Scout, Jon ... thought I had already commented
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Jack Plane
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« Reply #53 on: November 11, 2018, 01:36:12 AM »

Footage of Perry finally taking to the air in his Scout!  Smiley

After several patient, step-by-step tweaks on Friday (including a gurney under each inside wing, 0.5g weight on the forward end of the upper outside wing, 2g nose-weight, a sliver of left rudder, and a slight opening up of throttle), a satisfactory ground-run and take-off is followed by a slightly nose-up but level-winged flight to reasonable height in a comfortable circle before landing - currently totalling about 14seconds!

Very chuffed with this initial stage!

https://photos.app.goo.gl/9JCejjr7DZGkZcKGA
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Squirrelnet
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« Reply #54 on: November 11, 2018, 03:12:12 AM »

Looking very promising Jon.
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Andrew Darby
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« Reply #55 on: November 11, 2018, 04:41:48 AM »

Looking good Jon...  Grin

Andrew
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danmellor
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« Reply #56 on: November 11, 2018, 05:05:44 AM »

Nice! You have dispelled the myth that a Scout absolutely will not ROG, too.

Dan.
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TheLurker
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« Reply #57 on: November 11, 2018, 06:20:32 AM »

Ach, you're too damn good.  Smiley

Nicely done.
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Pete Fardell
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« Reply #58 on: November 11, 2018, 06:49:59 AM »

Love it, Jon! Very nice indeed (and it looks like it's bigger than a peanut in flight, which is always a good sign!)
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billdennis747
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« Reply #59 on: November 11, 2018, 08:46:14 AM »

How nice to see a Scout performing a good take-off. I don't think anyone has ever said a Scout will absolutely not take off; after all, the full-size one did. Nevertheless it cannot be denied that it has a reputation. Mine did not ROG and neither did those of Andrew Hewitt, Terry Manley, John Watkins, and another I can't remember. All of these were outdoor diesel models and they all failed to ROG in the same way, gradually drifting into a  groundloop at the end of a long, promising run, not a relatively short indoor run with no wind and fast acceleration. There must be a reason, possibly bound up with a huge tailplane with a thick lifting section and a small, blanked off, rudder.
But once in the air, they all fly great! Well-done Jon.
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« Reply #60 on: November 11, 2018, 09:56:07 AM »

That looks a delight, Jon Smiley

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Mark Braunlich
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« Reply #61 on: November 11, 2018, 11:18:51 AM »

Did not David Banks make a similar sized CO2 Scout?  Would it ROG?
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Mark
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« Reply #62 on: November 11, 2018, 02:03:50 PM »

Hi Mark. Yes Dave did a Scout. It's a very popular subject. I don't know if it rog'd but it does seem to be an indoor/outdoor thing. If you can get it off quickly, you're ok.
So what's the SPAD? I like Spads; it was one of my favourite models.
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Skymon
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« Reply #63 on: November 12, 2018, 04:35:30 AM »

That is a beautiful result.
Very nice indeed.
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Andrew Darby
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« Reply #64 on: November 12, 2018, 04:53:22 AM »

It's been very quiet from Holland....  Any news of results?

Andy
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« Reply #65 on: November 12, 2018, 05:48:25 AM »

Now on train to airport... with a hangover bigger than my cabin baggage!  : Shocked

Have videos of almost every flight from rounds 3 & 4 of Kit Scale, Open Rubber, Open Electric, and Open CO2. Will upload when I’m home later and post links on the main event thread.

In other news... the poor Scout suffered high-impact damage when the treeniest adjustment of rudder to slightly open the turn resulted in a beautiful, gently climbing but arrow-straight flight... stopped only by a wall.  Damaged fortunately confined to strut breakages (most of them) so not fatal.

Need to tame that rudder.  Mike Stuart suggests I now glue it straight and experiment with gurneys to find the exact amount of yaw for turns.
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Andrew Darby
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« Reply #66 on: November 12, 2018, 07:44:32 AM »

Hi Jon,

Looking forward to your vids...

Sorry to hear about the scout  Cry

Andrew
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flydean1
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« Reply #67 on: November 12, 2018, 08:07:10 AM »

Did Monz fly her magnificent Fokker?
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Jack Plane
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« Reply #68 on: November 12, 2018, 09:01:53 AM »

Thanks for the sympathies Andrew.  Will upload as soon as home....

Monz wasn’t playing in Nijmegen, but there were much less folk attending overall compared to last year’s record participation.
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Pete Fardell
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« Reply #69 on: November 12, 2018, 11:06:25 AM »

It's been very quiet from Holland.... 

Not only has it been quiet, but Jon's the only one we've heard from at all. Scarily, in his video the hall is practically empty. I've a horrible feeling he has somehow carried out an evil scheme to dispose of all the other scale participants just so that he could spend three days trimming his Scout in a vast space, having eliminated a good chunk of the competition forever. His long term master plan is of course to win Kit Scale with it at next year's Nats and thus remain KS champion.

Anyone got any evidence to contradict my theory?
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Andrew Darby
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« Reply #70 on: November 12, 2018, 11:31:02 AM »

I Heard from Mike Stuart on Saturday morning to say his Bird dog was flying well, then it all went quiet, this of course just goes to fortify your theory!  Shocked Shocked Shocked  Grin

Andrew
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Jack Plane
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« Reply #71 on: November 13, 2018, 04:08:46 AM »

All Nijmegen scale classes flights from Rounds 3&4 yesterday Sunday can be found by following the album links from this event thread:  http://www.hippocketaeronautics.com/hpa_forum/index.php?topic=22850.0
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Jack Plane
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« Reply #72 on: November 13, 2018, 05:53:29 AM »

Just found a couple of (pre-prang) pictures of the Scout on the 100th Anniversary of the Armistice yesterday.
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Jack Plane
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« Reply #73 on: November 14, 2018, 11:43:50 AM »

Just looked again at the (apologies for poor camera-work) video of that 14sec flight... and realised that the VERY FIRST thing the Scout needs is a bigger motor!

https://photos.app.goo.gl/9JCejjr7DZGkZcKGA

The G-28 is clearly operating at the very limit of its abilities for the all-up weight (26g) and wing-area (54 sq in) of the model.  What is needed is the G-43BB, with 50% more capacity to deliver more power at a lower throttle with more duration.  The 43 is almost the same dimensions as the 28 so will retrofit easily, and the prop is only 15mm bigger so ground-clearance not a problem.  It is barely a half-gram or so heavier, which extra nose-weight I reckon the model also needs.

If the 16" Camel (46g and 83 sq in) can have a ten-second burn-off of excess thrust on the ground, then take off, gradually gain altitude and pootle around for nearly a minute with the 63BB, then the Scout should easily aspire to at least 30-40 seconds with a not-dissimilar patrolling flight....?
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Jack Plane
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« Reply #74 on: March 16, 2019, 04:18:48 PM »

Breaking News...

After much concentrated work replacing the G-28BB (underpowered for the model) with a G-43BB over the last month, getting it working on the bench but not in the model, stripping it down etc getting it working a treat in the model but then not at all at Bushfields pre-Nats trimming session last weekend  Sad Cry Undecided Embarrassed Huh  ... I've had enough!

So decision was made on the spot to electrify, and with Graham Banham's expert suggestions (as he was right there) I've now assembled the components needed:

* Voodoo 15 geared motor
* 5" prop
* Zombie flight controller
* 130mAh 3.7v lipo

Entire firewall hacked away and cleaned up with the Dremel, and some preliminary carving out just inside the nose to clear the gearing.

Sketch made of proposed installation - a thin ply tray secured with epoxy directly to the inside of the nose-block (i.e. bang onto the rear of the half-cylinders) which is fairly secure with its existing four micro-magnets and locating pins.  To keep the weight well forward the battery will mount above the motor on the other side of the tray.  If any vibration, tray is long enough to locate at rear at the station of the next former aft of the old firewall.

The electric gubbins all weighs about 10g, whereas the CO2 installation was 7g plus 2.5g nose-weight plus up to 1g of liquid fuel, but the CG of electric components on their tray will be slightly more forward so don't anticipate having to add any surplus weight at all.

The Scout WILL have its day at the Nats next month!  Smiley

Jon
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