Mike T

I must congratulate myself on resisting the temptation and instead just joining Matty with a laugh... @ANDY S - out of curiosity I checked my own County listing (which is correct), but there are many outdated options still available. So if you were to target a mailshot to all those who had correctly selected their up-to-date county name, then anyone who had chosen one of the 'older' options would miss out, despite having selected a supposedly 'legitimate' county from your database. Sounds like the latter could do with a good edit...

I'm more inclined to suspect the 2S prop size quoted. Given the 'spread' quoted for the other winds, I suspect that the 6-turn 342W motor should be turning a 6 x 4 on 3S.

Immelman turn - now there's a can of worms!

Way TMI...

Skidding turn per Werner Voss. Plenty of rudder with opposite aileron to hoof the tail around.

I have a slightly different problem with an inverted Saito 125. It runs fine on the ground, but at speed in the air it seems to falter and surge. I'm assuming its because air is chuffing around inside the cowl and 'spoiling' the airflow around the carb mouth. The flat Saito carb has no means of directly mounting an intake 'trumpet' (the usual cure to manage air intake and/or reversion problems), so I machined up some al. tube with a groove for an 'O' ring at the bottom. This sits on the carb (the 'O' ring preventing metal-to-metal galling) and is screwed to the engine mount. Hopefully, being fixed on the engine mount will mean that the effects of vibration will be sympathetic. Pic attached: NB - as yet untested!

Yes. It helps to have the right prototype. Take the "Spirit of St Louis". An accurate scale flight would involve a protracted take-off run, then keeping low, head east until out of sight. Guaranteed maximum points. The only flaw I can see is that it may not be possible to participate in subsequent rounds...

As well as the collets that came with the tool, I also have a set of ten brass collets sized 0.5 - 3.2mm which fit it, so I assume I must have got them from Lidl as well 😕. The thread on the spindle is 7mm and has 40 tpi. It's like no thread I've ever seen. I assume Lidl copied Dremel and Minicraft in going out of their way to be awkward beggars...

Cunning. It's for the NHS so automatically gets Joe Public well on-side. It's then but a small step to imposing further blanket restrictions in the interests of security, jobs, borders, etc. This is one instance where RID, if used on 'hobbyist' drones or model aircraft, would obviate the need for blanket airspace restrictions, assuming the commercial lower airspace operators employed sufficiently intelligent collision avoidance systems. I don't think that it's unreasonable that this be demanded of them. They are, after all, the interlopers into 'our' airspace.

FWIW I had a plan printed last week. I then found I already had a print that the same print shop made about 5 years ago. Overlaid, they were identical.

The heat gun is a monster! If you use it to shrink coverings, you need to hold it well back! The cordless rotary tool is excellent as well and comes with a range of tools and collets in the case. It also comes around quite regularly should you miss it on this occasion. I find the Parkside stuff to be excellent quality. If the disc sander comes around - get one. It's virtually identical to the Proxxon at about a quarter the price.

Yes, it was older, effectively otherwise unavailable plans that I was thinking of. That said, there are nevertheless a large number of plans on OZ from brands now owned by companies still actively trading - Sarik being one.

I think it's called 'a debate' - the life blood of internet forums! 🙂 I take the point about post-manoeuvre stall characteristics. If the consequential effects of any particular manoeuvre are more trouble than their worth, then that's a huge disincentive to execute it in the first place. FWIW, I always imagined the DVII's performance of this trick was somewhat like a slightly delayed stall turn, with enough time at the top to fire off 20 or so rounds before falling away. Re the naming of DVIIs in the Armistice, I think this is because at the time it was considered the most significant threat in the Luftstreitkraefte arsenal. If the war had gone on another 6 months, the Armistice might well have singled out e.g. the Pfalz DXII. Note that post-war, the two aircraft that found their way into other nascent air forces in significant numbers were the DVII and the SE5.

To pursue Martin's line of enquiry - why on earth would the wing section matter to an aircraft hanging on its prop? 🙂 I can't see that the stall characteristics have anything to do with it. The Wolseley SE had about 220HP; the BMW DVII about 185.

idle query - does getting a plan scanned cost the same as printing? I ask as this would seem to be an easier/cheaper way of getting it across the Atlantic. It could also then be uploaded to Outerzone (though not in this particular instance as I know Steve (Oz.) is wary of hosting stuff that is still actively 'commercial').

Yes - I noticed the weirdness, but assumed that was something to do with my UK location and/or cookie/security settings!

Maybe I should start a new topic, but any recommendations for mowers? As I mentioned above, we have several, but we need something a bit more substantial to make it less of a chore. We've been looking a ride-ons like Allen National, Ransomes and Toro ganged reel mowers, but they'd need to be very second hand (i.e. cheap!) Pros and cons of ped. vs. ride-on, rotary vs. reel, etc.?

Well I've just filled mine in (took about an hour) and got an instantaneous confirmation. I looked at the BMFA 'model response' and decided to do a Colin Chapman ("simplify and add lightness"). I also cheekily suggested that if RID becomes mandatory, any costs to 'model aircraft operators' should be defrayed by the commercial operators who will be the main beneficiaries of its introduction. Let those with the deepest pockets shell out!

Traplet (original publishers) appear to have a site in Australia. Maybe give them a try? Trans-Pacific shipping may be cheaper! 🙂

When negotiating our field the farmer assured us that it was strictly sheep only and would never have cattle on it. We rejoiced. Problem is, sheep feeding on lowland pasture produce surprisingly large deposits - and plenty of them. Mowing exposes the sweeter part of the leaf, which attracts them to the runways...

The listing states "no pull out plans" 😒

Given it's power and similar benign/stall handling characteristics, I'm pretty sure S.E.5s could have done this if the need/opportunity arose

Saw the F-16, Rafale and Typhoon at Cosford last year. The Rafale was outstanding and the F-16 was excellent. I hope the Typhoon was being polite and not trying to upstage the guests...

We've ended up with 6 this year! Started off with an ex-Parks Department Victa self-powered walk-behind which we've had for 20 years. Last year our secretary sourced four damaged repairable push and self-powered mowers for a nominal sum and got them working. This year, another member sourced and gifted us a ride-on, which is fun, but proving a bit temperamental. All are stored on site in a low 'shed' cobbled together, again by our Secretary (top bloke!) and covered with tarps. Mowing has been a nightmare this year as the combination of a lot of rain and a bit of sun has meant that we are constantly mowing, sometimes without getting any flying in between!

That's the bog standard motor people use when brushlessifying their Twinstars. It's what I've got on mine and with 20A ESCs they run just fine on 8 x 4 props. BTW - folding props always tend to fold back a little when running, which may have been enough for your original prop to not hit the fin.