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Member postings for Piers Bowlan

Here is a list of all the postings Piers Bowlan has made in our forums. Click on a thread name to jump to the thread.

Thread: IC and Electric
19/12/2018 11:50:10
Posted by J D 8 on 19/12/2018 11:05:31:

I have seen many a take off go squirrely or worse with IC and electric just because the power stick has been slapped open to full in an instant. You are right in thinking that more spinning weight will result in more gyroscopic progression, something that several WW1 types with rotary engines are well known for.

I have a small electric Polykarpov I16 RATA which is a handfull at times.Once on the approach to land you are committed,any attempt to open up and go around it will swing left and roll in even if you open up slowly.sam_1094.jpg

Nice model JD8 even if it is a handful. Was it scratch or plan built and what size?

Thread: T/E thickness
17/12/2018 22:22:49

To toughen up a thin trailing edge against 'hanger rash' I sometimes dribble thin cyano along it but do make sure you do this outside because of the fumes. Once dry, a light sanding with fine sandpaper will remove any tiny fibers from the surface to produce a smooth hard finish.

Thread: Glue for foamy?
17/12/2018 22:06:27

Rocker, I used UHU Por to glue my Durafly Vampire together and there is no sign of it comming apart after years of abuse. Multiplex recommend their Zacki for their 'elapor' foam models (EPO to you and me). Zacki just seems to be a slightly viscous cyano but it works very well. I just wondered why you prefer UHU Por? As Sonny says UHU Por is a contact adhesive so once the parts are pushed together it 'grabs' so not much chance of adjustment. Sometimes I find it can be preferable to aligh the parts and then dribble Cyano into the join or alternatively coat the parts to be joined and confidently push them together which will give you a moment for adjustment (you hope!). Be warned, if using thin cyano it will find its way through every nook and cranny, so you may end up glueing parts that shouldn't - including glueing your hand to your model! When using cyano on EPO sometimes it is necessary to use kicker to accelerate it but it can make the glue go yellow. Like you say, alternatively use UHU Por!

Thread: Low pass Petes Build thread for Holi (Dereck Woodward Design)
16/12/2018 19:39:45

Very nice work Pete, I am looking forward to hearing how she flies, should be good.

My e- Holi is in the same state it was in last year! I have done all the jobs in my new house angeland now with a heated garage, no excuses for not finishing her off pronto. Watch this space!

Edited By Piers Bowlan on 16/12/2018 19:40:32

Thread: Can a drone fly at 10000ft?
16/12/2018 09:23:43

Here. It was actually a Gorilla but the principal is the same. Now you are wise to it it will be obvious but try it on your unsuspecting friends and you will be amazed at how many people don't spot it. (I didn't!)

Eyewitness reports are notoriously unreliable and often taken with a pinch of salt in accident investigations where the general public are concerned. If the pilots said they identified a drone then they probably did but we will never know for sure as there is no photographic or SSRT evidence as drones don't carry transponders. What I would say is having had a few close encounters with birds during my flying career you only get a momentary fleeting glimps before they are gone, so very little time to focus and clock any detail. To explain, one second they are a tiny speck snaking towards you, the next, when close enough to potentially see detail, they are a blur streaking past you in your peripheral vision.

I once had an airmiss with a model aircraft. Some years ago I was instructing in a C152 approaching Denham having let down to circuit height (750ft QFE). A green model aircraft with eliptical wings apeared infront of me climbing in a vertival attitude (spitfire!?), it seemed to hang in space for a second before dissapearing close dowm my right hand side. I reported the matter to the police as I thought the operator should be told 'the error of his ways', flying within the Denham light aircraft corridor at circuit height and within the London CTZ. I never did get any feedback from the police and I regret to say did not file a report with the CAA, as I thought it was more a police matter (endangering an aircraft). Bearing in mind I was only flying at 90 knots I only saw it for a couple of seconds, much less If you are doing 300kts.

Edited By Piers Bowlan on 16/12/2018 09:34:11

Thread: New EDF Mini Jets- Sabre & MiG15 RCM&E 2018 Special
15/12/2018 14:23:33
Posted by Wilco Wingco on 13/12/2018 12:07:45:

How about a British jet??.

AN EE Lightning would be popular (one fan not two please!) and a Hawker Hunter would go down well too. yes

Sorry to hear of your health issues Tony. Get well soon.

Thread: Little Miss Honky Tonk
15/12/2018 09:13:47

yes Good. Better clear the decks then.

15/12/2018 08:56:29

Peter, any news of when Little Miss Honky Tonk may get published in RCM&E?

Thread: New Website up and running...members welcome...
14/12/2018 10:37:47

Here. Welcome to the forum Greg.

Thread: Removing sticky acetates from new ARTFs
13/12/2018 16:47:15

Choose? I am not allowed to work in the kitchen crying .

Edited By Piers Bowlan on 13/12/2018 17:03:15

13/12/2018 13:39:09

I usually use a small drop of petrol on a piece of kitchen roll for removing glue residue from items. A bit smelly but it soon goes off! Don't be tempted to use acetone or cellulose thinners as it will attack the covering but I expect you know that.

Thread: Best Heating Option For Your Hobby Shed
13/12/2018 13:05:16

Peter, instead of 'trying to get hold of a small old battery' why don't you get a small deep cycle leisure battery, the sort of thing used in a ride-on mower. I saw a 30AH battery on the Halfords website for £47. I tried to make a link to it but their website wasn't having any of it. If you google, 'Halfords Yuasa U1 Specialist and Garden Battery' you will probably see what I mean. It should be man enough to get your diesel heater started at any rate.

Edited By Piers Bowlan on 13/12/2018 13:16:47

Thread: Reichard Models GROB G 103C TWIN III
11/12/2018 16:52:04

Here is the link. Are you planing to put a retractable electric SLS in it by any chance?

Thread: Epoxy or Polyester Resin
11/12/2018 12:01:24
Posted by Nigel R on 10/12/2018 17:07:29:

Piers, have you seen this article about laminating U/C?

Er, no, but I have seen others and some with laminating the main landing gear on light aircraft with a considerable weight saving smiley. I believe Burt Rutan's VariEze had composite main landing gear legs. One of the advantages is that you can reduce the length of the wood/carbon/epoxy laminations so that the leg is tapered, providing maximum strength and stiffness at the top and more give towards the wheels. Cheaper than casting or machining a solid billet of aluminium alloy. I have never tried it in a model aircraft but perhaps I should.

A nice clear, informative article Nigel.

Edited By Piers Bowlan on 11/12/2018 12:06:07

Thread: Inexpensive lightweight GoPro type video camera?
11/12/2018 11:06:51

Any particular reason Ron? Definition, colour saturation, depth of field, lack of aberration? (I expect you can tell I don't know what I am talking about!). I presume you mean this Runcam? If you scroll down the page there is some video of it in action which might be of interest, plus some more info on it.

Edited By Piers Bowlan on 11/12/2018 11:09:28

Thread: 1/2 scale Druine Turbulent
11/12/2018 08:51:31

That is very neat Reg, I could have done with with that system on my full size Turbulent G-AWMR. Would have been nice to have been able to take it home to work on it in the wintertime instead of working in a freezing cold hangar.

Following with a lot of interest and a tinge of nostalgia!

Thread: Inexpensive lightweight GoPro type video camera?
10/12/2018 22:51:36

Hi Jon, the Mobius action cam takes really great video/stills and costs between £55-£65 depending where you get it. It only weighs 39g so is ideal for fitting to a glider. I fitted mine to a Radiam Pro XL and obtained some great footage. It also is good in low light conditions too by the way. It records onto a micro SD card and you can get different lenses for it too (wide angle or not so wide angle - you can tell I am not a camera buff!)

If you want it in a hurry you can buy from Amazon. Hobbyking have it in their 'Global Warehouse' but it will attract customs and handling charges (it is over £15) . If you order from Banggood you tend not to pay those.....! wink 2 However, Bangood deliveries tend to rely on on 'the slow boat from China' rather than DHL so expect to wait about three weeks. Not much good for Christmas.crying

You should get one, you won't be disappointed.

Edited By Piers Bowlan on 10/12/2018 22:54:02

Thread: Plane for new engine - any suggestions?
10/12/2018 22:25:29

I will add it to my build list Pete, but it is a pretty long list, thanks for the info. yes

10/12/2018 14:48:18

Peter, when you say The Jackdaw is 'less floaty' than the Super 60, do you mean it penetrates better, flies faster or glides better. In any event the link for the plan is here. Nice video by the way.

10/12/2018 08:25:24

Or a DB Sport and Scale Cirrus Moth kit. The video here.

Edited By Piers Bowlan on 10/12/2018 08:26:50

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