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Member postings for Broken Prop

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

Thread: Balancing jig
14/01/2021 19:14:31

Hi John

I have used one of these balances for years and it works well. I set it up as you describe, with the zero point in line with the pivot and it works fine as the scale then gives the correct distance from the leading edge to the CG position.

In use, the arms can stick a little and moving the adjustable weights does not have much effect. Try tapping the uprigths gently and the arms will then settle into a horizontal position. It just takes a little practice.

good luck


Thread: Where do you get your Lead from ?
14/01/2021 19:03:56

Scuba divers use bags of 'lead' shot in their weight belts. They can be bought on Ebay at about £15.00 for 2Kg.

Thread: How do you attach your cowl?
23/12/2020 12:36:20

For IC: Self tappers into hardwood,blocks on the firewall as others have stated. However I oversize the holes in the hardwood blocks and insert short lengths of fuel tubing into the holes, with a bit of CA. The screws bite into the tubing but retain some flexibilty against vibration.

I also cut a small washer from fuel tubing and fit it under the head of the self tapper to improve the flexibility.

Thread: Where do you start with CNC?
21/12/2020 19:00:11


Geoff Gardiner did a series of helpful posts on here a little while ago. They included his work on converting his 3D printer into a laser cutter.

Search under 'Anet A8'

Good luck!

Thread: Advent Prize Draw - 1st Dec (now closed)
01/12/2020 08:01:09

Yes please.

Thread: Playboy senior
08/10/2020 12:44:01

Ah yes I forgot about the short nose. I lengthened mine by 25mm but still had to visit the local church one dark night.....

12 oz IIRC.

08/10/2020 11:20:25

I built one to the original Cleveland Model Co plans (via Outerzone) and it flies well on a Saito 30. As Djay says, you do not need to open up the throttle once the thing is in the air. It flies for ages on a 4 ounce tank.

The fuselage is a little thin at the rear end in my opinion. This does allow the tail to twist and I added some internal diagonal bracing, using carbon fibre tow to stop that from happening. The wing joiners on the Cleveland model are too short but are easily extended (can't speak for the BB kit on that point).

The only other item is that the table on the pylon is small in area and the wing can move about on it. This does not seem to affect the handling but I have thought that a couple of locating dowels would help.

All minor points really, none of which detract from a great flier! Just try landing it though with the engine running. It will float on and on into the next county.

A lovely model and one of my favourites.

Thread: Fly aways
21/07/2020 10:07:58

I was under instruction using a buddy lead and had reached the stage where I could fly around reasonably well but could not take off or land (not much change there then!)

My instructor took off, turned the model into the wind and said, 'You have it'.

A few exploratory stick wiggles on my part evoked the reply, 'No I haven't'.

'Neither have I', he replied and we stood and watched the beautifully trimmed model steadily putter away into the distance. This happened in Corfu and I have often wondered quite what the Albanian Early Warning System made of our intrusion into their airspace.

Thread: Laser cutting
02/06/2020 06:57:26

I would be very interested in attending such a course Barrie, if you can get one going. I will keep an eye on the BMFA mag for an advert later in the year.


Thread: Hello from Oxfordshire-first build project advice please
28/04/2020 12:10:31

Fantastic work Dee! Thank you for sharing it with us and good luck with the flying.

Remember to do the first unpowered launch over long grass if possible so that you get an idea of what is going to happen. it will give you the chance to trim out any nasty tendencies such as turning to one side or stalling.

Let us know how you get on please

Blue skies!


Thread: Mini E Panic
23/04/2020 15:08:07


Your post is tacked onto the end of a build blog by Craig Spence in 2010. Lots of pictures including ones of the wing rib spacer. Go back to the start of the thead for lots of useful information.


23/04/2020 15:02:18

I have measured the rib spacing on my old Mini Panic and generally they are at 80mm centres. You could make up a spacer to suit.

Not sure about the centre section of the wings as that is sheeted and I cannot see the ribs. Also between ribs 4 and 5 in the lower wing (taking the tip rib as No1) there is a supplementary rib spaced at 25mm from rib 5 to provide support for the aileron servo.

Hope this helps.


Thread: Pins and things
20/04/2020 12:22:24

Ron , the yellow headed pins are (or were) made by Graupner. Model Maniacs have them in stock.

Thread: Anyone still using a balsa stripper?
17/04/2020 09:35:43

I used to use a Kavan balsa stripper but was converted to the Avicraft version a few years back. A different concept but easy to set up and use with no jamming as the blade is set with a 2 degree run-out. Takes standard scalpel blades.

Available on Ebay under 'acrylic balsa stripper' or through J Perkins.


Thread: Vic smeed Paageboy
03/04/2020 15:45:33

Yes please!

Thread: Insanity seems to be setting in
18/03/2020 10:05:15

No Don, it is not just you, the Gods have got it in for all of us.

Last year was windy so we could not fly.

Then they sent the CAA to upset us.

Then it rained for ever and a day.

Now they have sent us the plague.

Whatever next?

Edited By Broken Prop on 18/03/2020 10:05:39

09/03/2020 14:00:16

Ooh err. Still, if it is page 3 of the Sun......

Edited By Broken Prop on 09/03/2020 14:01:31

09/03/2020 13:41:49

Thanks Martin, I had forgotten the joys of newspaper loo sheets. Sitting there reading all the news and then putting the paper to good use afterwards. Brilliant!

I'm off to cut up an few sheets and thread them on a piece of string. Mind you the nostalgia won't be complete unless I can simulate the outside toilet that we had in days of yore.

Where's that club hammer?

smile p

Thread: Probable scam?
24/02/2020 13:43:29

When I get a nuisance call these days I just tell them that the voices had told me they going to call. The conversation rarely gets any further. disgust

Thread: Veron Avro 504N
01/02/2020 19:54:06

Lovely! A beautiful build that deserves to fly well.

Good luck Robert!

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