dle 55 ...previously had a 22x8 albatross...rpms were insane approaching 8k rpm...went to a 23x8 albatross and got 7380, still too much IMO, it would rip like crazy...settled with mejzlik 23x8 6950 tuned to fly, and very happy

dl 50 albatross 23x8 7030 tuned to fly.....

Update. Tested my DLE-55 (stock exhaust, nearly 8 gallons through it at the time, 40:1 Stihl Ultra synth. since break-in complete, 3500ft asl, +20*C) on a lot of props, but here's the avg-top RPM range depending on weather and how warm the engine is.

22x8 Xoar Sword = 7480RPM
22x8 Hawk = 7250RPM
22x10 Xoar Sword = 6950RPM
22x10 Xoar CF = 6850RPM
23x8 Xoar Sword = 6810RPM
23x8 Mejzlik CF = 6800RPM

As an aside, Mejzlik 23x8 was my favorite for IMAC and had the most upline thrust of all props tested on a 15.5lb 88" 30% Edge. To say the plane flies like a space shuttle is an under statement. It's the most overpowered, best flying plane I've ever flown. The Xoar 23x8 seemed to be pretty good as well and would likely be a good 3D prop for slightly better spool-up than the CF Mejzlik. Haven't tried a Vess 23 yet.

Egan

DLE 55 7050 Bolly wood 23x8 stihl ultra hp 40:1


my buddies Evolution 58 6350 Xoar Laminated 23x10 mobil 32:1