I have used the TriplTek for quiet some time, not in my sailplane, but for my drone operations. The unit is really good, long batter life , durable and very bright even in sunny conditions. I also have an Oudi IGC and it just compared the size of the two and the TriplTek is about 35-40% larger screen size than the Oudi IGC. The Tripl is extremely durable, can really take abeating and the brightness and resolution is impressive. The unit is Android based, can work under any condition and is an impressive unit for what I do, I would not consider it too large for the cockpit of my 27. Old Bob, The Purist