Adaptable ballast spreadsheets, using array formulae

F3X pilots love kilogrammes - it makes their models fly faster! The problem is knowing how many to add, and where to put them. Sure, you can play with your ballast by trial and error, but I'll let you in on a little secret - it's far easier using a ballast spreadsheet!

Photo magic at the Welsh Open

Here's a publicity shot by MKS, using two of my images. It shows Joel West winning the recent Welsh Open. I think their graphic designer has done a rather nice job!

A One Minute Guide to F3F

F3F is the Formula 1 of slope soaring, but you don't need a Ferrari to compete - just a moulded glider, a transmitter... and a liking for RIPPING UP THE SLOPE with some like minded pilots!

RTGmodel Stribog review

Around the end of 2017, I started to look around for a new F3F model. After hearing some good things about the Stribog I placed an order, and nine weeks later a huge box arrived at the door.

Fast forward to now... the Stribog has been assembled, tested, and flown in competition. Time, therefore, to pen a few words...

FrSky Q-X7 - an F3F-ready transmitter for £100!

The FrSky Q-X7 may not have the looks - or the price tag - of a premium radio, but don't be fooled - it's a remarkably capable device which is fully capable of driving an F3F model to the extremes. In this post I'll highlight key aspects of this transmitter, and explain why it offers such ground breaking value.

E-Soar Plus 3.0

E-Soar Plus, my template for sport and F5J, has proved popular with F5J flyers, and version 3.0 adds some extra flexibility and refinement. The main enhancement is a choice of three arming methods, and in this post I'll describe the background to this and other changes.

Advanced snapflap mixing with OpenTx and Lua

In this post, I'll describe a snapflap mix with the emphasis on 'trimmability'. It offers full control over the snapflap curve, with all adjustments via dedicated controls. The mix is in use in both my Needle 115 and Stribog setups, so is well tested.