Andy Stephenson

Wasn't there a fatal accident on the flightline in Spain fairly recently? You'd think this would shake some sense into your local junta.

I don't think anyone fixed it, it's just that the server is in a good mood for once.

I'm getting that feeling of Déjà vu all over again!

B&Q sell something that is identical to Depron... https://www.diy.com/departments/diall-polystyrene-6mm-insulation-board-l-0-8m-w-0-6m-pack-of-8/1906880_BQ.prd It comes in 3 thicknesses, 3, 6 and 9mm

Bigeard, Mylar is a polyester film made from stretched polyethylene terephthalate (PET), pop bottle material. It comes in sheet form on the roll from Mike Woodhouse in thicknesses from 1micron up to 12.5micron. It's a clear film that also can be silvered. It heatshrinks like iron films but has no adhesive and it can be attached to an airframe with Covergrip. I have used the 2micron which is very flimsy, the 5 micron is easier to use. When applied under tissue so little dope is needed, it comes in lighter than tissue alone with the additional advantages that it's completely air-proof and puncture resistant.

Be careful wetting the structure if it was built using PVA or other water-soluble glue as the structure could easily just fall apart. There was a magazine article about some old geezer, when ever he crashed his plane, he used to put it in the bath to separate all the bits so he could rebuild it from scratch, this could of course have been the April edition.

FIFY

OK now, thanks.

The cookies thing pops up randomly so if you click back when ever you get it then click on the link you want it will eventually go there.

My DB Ghostrider 50 would occasionally stall into an unrecoverable spin so I put small upward tilted ply tabs near the tips of the wings which completely cured the problem. It seemed that the issue stemmed from the small fin area because the design was originally conceived to be used with galloping ghost control.

One of the guys on the field had a problem with a brand-new Irvine engine which wouldn't run but would start on a prime. I successfully diagnosed the problem being that the exhaust pressure nipple hadn't been drilled all the way through. Just a poke with a small Allen key pushed out the blockage and all was fine after that.

This is my VMC Redwing with 4 function micro R/C gear culled from a Parkzone Sukhoi, covered in tissue over Mylar. It has flown numerous times indoors as well as outdoors. The kits do seem expensive but they are a pleasure to build.

It's been flaky this morning sometimes it goes to the listings but other times it asks to accept cookies but when you do this it takes you to a strange URL with a completely blank page. It's done this before but usually only once then it works, it's worse this morning.

Done.

I still have a problem with this documentation. It isn't formatted as an A4 so printing it is a pain when the text comes out so small it's a difficult read and compressed so it only covers a fraction of the page. This is not what you want when conducting tests out in the field and you want to refer to something. When ever something is "improved" it always takes a step backwards. Can we please have a version of the documents formatted sensibly for use in the field, just like they used to be.

I still have the zip file for V4 if anyone wants it. I won't go any further than V4 on my 14SG because I have a number of older FRSky Fasst compatible receivers which we have been warned that may not be compatible with the LBT upgrade which came as part of V5. T14SG_FX22_Ver_4_0_ENG.zip

It strikes me that the motor wires will have a pulsed current with a high frequency component and any extra length will contribute to the inductive impedance of the connection whereas the battery connection has a large capacitor across it so the current into the ESC will to some extent be smoothed and the inductance will have less effect.

I didn't actually, I had a PDF I'd downloaded before they messed it all up. Checked it was still the current version and posted it for the convenience of all.

This is the document you are looking for*, not easy to find on the BMFA site but when you do they, have screwed it up so badly with the latest "upgrade" to their website, that you can only download one page at a time out of a 32 page document. *Complete document attached below as a PDF. Fixed Wing Power Certificates Jan-2024.pdf

I witnessed a steep arrival which was very likely due to this issue.

A friend took my X14 to a techie mate of his to do the update and although I'd heard about the OTA receiver upgrade, I was advised not to do it as it only affected the RSSI readings which I wasn't worried about. I'm glad I didn't now.

If you read Konrad's new thread it seems that FRSky receivers can be bricked using the latest upgrades, so it could be risky upgrading firmware until you read the reviews.

The close-up of the transfer clearly isn't from a Mercury kit now I can see it.

This LiFe chemistry is a true "Li-ion" type where the Lithium is not held in metallic form. Instead of nickel or cobalt, it uses iron phosphate FePO4 which makes the cell much less prone to fires when abused. The trade-off is that it has a lower voltage and energy density, although it has a better self-discharge rate and superior cycle life.