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Search: Posts Made By: bjr_93tz
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02-17-2021, 03:57 PM
Replies: 324
Views: 48,552
Posted By bjr_93tz

I tighten them a nip at a time too. I also...

I tighten them a nip at a time too. I also loosen them a bit at a time too starting with those two screws.
I loosen them even if I'm only taking off the backplate so they aren't loaded up when the...
02-15-2021, 06:03 PM
Replies: 324
Views: 48,552
Posted By bjr_93tz

A word of caution, my 170cdi gave me grief on and...

A word of caution, my 170cdi gave me grief on and off for years, sometimes running perfectly for months and hundreds of flights, then it'd drive me insane for a few months.
To cut a very long story...
02-13-2021, 08:49 PM
Replies: 324
Views: 48,552
Posted By bjr_93tz

Something I thought I'd quickly mention that can...

Something I thought I'd quickly mention that can be a trap for the unobservant, and even the factory as it's how my engine came from them, is the bolt holes and the gasket area in the head are...
02-09-2021, 12:55 AM
Replies: 324
Views: 48,552
Posted By bjr_93tz

Whoops, time to wash my mouth out with soap and...

Whoops, time to wash my mouth out with soap and water after mentioning the 'C" word in a YS related thread :(
02-07-2021, 06:12 PM
Replies: 324
Views: 48,552
Posted By bjr_93tz

I've put 3 litres of 18 month old 30% Nitro, 10%...

I've put 3 litres of 18 month old 30% Nitro, 10% Coolpower Blue oil through it and it's behaving itself very well considering it's essentially a new motor. Mixed up some fresh fuel today but it's a...
01-30-2021, 05:14 PM
Replies: 324
Views: 48,552
Posted By bjr_93tz

I'd prefer not to pull it out again, (let...

I'd prefer not to pull it out again, (let sleeping dogs lie so to speak), however unlike old mate that cut grooves and added o-rings to seal things up I just ran a tubing cutter around it a few times...
01-29-2021, 01:12 AM
Replies: 324
Views: 48,552
Posted By bjr_93tz

Job done!! Yes, there's some coating on it and...

Job done!!
Yes, there's some coating on it and I'm not sure if it's aluminium or steel, and under the pipe/tube cutter blade it felt like heavy anodising.
You can pull and hold a vacuum on the...
01-28-2021, 10:01 PM
Replies: 324
Views: 48,552
Posted By bjr_93tz

Yes, although the end is supported by the o-ring...

Yes, although the end is supported by the o-ring and being rotational it should just wear a matching grove and form a really good seal.
Almost a very poor man's shaft micro labyrinth seal???

I...
01-28-2021, 04:46 PM
Replies: 324
Views: 48,552
Posted By bjr_93tz

Well knock me down with a feather, when you...

Well knock me down with a feather, when you google around looking for somebody to support a theory, you'll find it.
https://www.rcuniverse.com/forum/6492981-post12.html

Instead of an o-ring, I...
01-28-2021, 03:06 PM
Replies: 324
Views: 48,552
Posted By bjr_93tz

Thanks for the offer Scott, "Running" is about...

Thanks for the offer Scott,
"Running" is about where it's at for me at the moment and "flyable" if I want to cruise around at a random throttle position where seems happy(ish), but it's useless for...
01-28-2021, 03:24 AM
Replies: 324
Views: 48,552
Posted By bjr_93tz

Hi Scott, dubious about a couple of things but...

Hi Scott,
dubious about a couple of things but mainly that hole location. Even when my engine came back from YS I wasn't happy with it so I put the whole lot away and bought a heli. I've dragged it...
01-28-2021, 02:42 AM
Replies: 324
Views: 48,552
Posted By bjr_93tz

Other than one or two other things I'm a bit...

Other than one or two other things I'm a bit dubious about, could somebody please confirm that the hole in the throttle plate that supplies fuel to the sub needle valve on their DZ200 is drilled into...
09-27-2020, 03:30 PM
Replies: 58
Views: 9,750
Posted By bjr_93tz

Here's mine from the mid 90's. Weighed just over...

Here's mine from the mid 90's. Weighed just over 18lbs with a piped Supertigre 3000 spinning an 18x8 prop.

Probably could have done with more nose weight (??) but it was the weirdest plane I've...
09-05-2020, 10:57 PM
Replies: 5
Views: 1,785
Posted By bjr_93tz

Thanks but the plane in the picture was onto it's...

Thanks but the plane in the picture was onto it's 2nd owner in a regional area of Australia by1977, plus the tail feathers are very different, however that got me looking at Joe Bridi designs. The...
08-11-2020, 03:16 PM
Replies: 5
Views: 1,785
Posted By bjr_93tz

I just had a look at a Komet build thread and I...

I just had a look at a Komet build thread and I don't think so. The Komet appears to have a straight, or slightly swept back trailing edge, the fuse seems deeper compared to the length and the fin...
06-10-2020, 07:09 PM
Replies: 9
Views: 3,986
Posted By bjr_93tz

With stabilisation, F3A or any other RC fixed...

With stabilisation, F3A or any other RC fixed wing no longer has to be stable. Imagine that cat thrown in amongst the pigeons with a future schedule and designs to exploit it?

One thing that the...
05-15-2020, 06:37 PM
Replies: 5
Views: 1,785
Posted By bjr_93tz

Name the plane?

Hoping somebody might recognise either of these two designs?
The red/white one looks like one of these, https://outerzone.co.uk/plan_details.asp?ID=9679 but the stab/tail is different. It belonged...
02-19-2020, 01:21 PM
Replies: 12
Views: 1,012
Posted By bjr_93tz

Do you want to fly a Hammer .40? If you add...

Do you want to fly a Hammer .40? If you add length to it then you're not flying a Hammer .40.

A lot of the old designs are short by today's standard, I'm not sure why? Some of the engines back...
01-24-2020, 02:34 AM
Replies: 23
Views: 6,146
Posted By bjr_93tz

It's a cruel fact of geometry that flying closer...

It's a cruel fact of geometry that flying closer in or further out doesn't change some relationships. No matter how far or close you fly, a Cuban Eight flown to the top of the box must be out of the...
01-23-2020, 03:14 PM
Replies: 23
Views: 6,146
Posted By bjr_93tz

Seriously gents, if you don't have CAD just grab...

Seriously gents, if you don't have CAD just grab a compass and set square and actually draw what we're supposed to be flying.

Not many manoeuvres can be flown to the top of the box without being...
01-21-2020, 08:50 PM
Replies: 49
Views: 8,965
Posted By bjr_93tz

Sort of reminds me of this scene... there's a...

Sort of reminds me of this scene... there's a longer version out there for context but this couple of seconds sums it up.

https://www.youtube.com/watch?v=bTNxzYjzsG4
12-22-2019, 02:04 PM
Replies: 45
Views: 7,702
Posted By bjr_93tz

Way back when I was having the first round of...

Way back when I was having the first round of issues with my DZ170cdi, I stretched the springs in the pump so the valves would seat with more pressure.

While it worked fine in my hand with a large...
12-19-2019, 06:17 PM
Replies: 23
Views: 6,146
Posted By bjr_93tz

Going all the way to the top of the box simply...

Going all the way to the top of the box simply isn't going to work here.
https://cimg9.ibsrv.net/gimg/www.rcuniverse.com-vbulletin/1144x577/p21_z_comet_a95556da0f7b0e57d880cff414ff882028cdb91b.jpg...
12-19-2019, 06:15 PM
Replies: 23
Views: 6,146
Posted By bjr_93tz

Are you sure performing the loop high gives you...

Are you sure performing the loop high gives you more room for the 4 point roll?
...
12-16-2019, 02:52 PM
Replies: 23
Views: 6,146
Posted By bjr_93tz

I haven't done it for the past sequence but given...

I haven't done it for the past sequence but given the discussion I might do it for P21, that is draw the sequence in AutoCAD. Drawing up the sequence in CAD is a good way of figuring out how a...
Showing results 1 to 25 of 500
 


 
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