Full power run ups for a taildragger?

[gereed75]

As another option, I have a big steel sewer grate on the taxi way just outside my hangar. Park the tailwheel on it and Tie down with two cargo straps. Works “grate” because there are multiple places to attach the hooks.

Use it routinely when solo for doing post maintenance run-ups for leak checks and timing checks.

[rv8ch]

Here's how I did it and it worked fine. The strap is about 2" wide. Tied to the frame under the car, and used the wheel to hold the strap down. The part of the strap between the wheel and the frame didn't even get tight.



Many thanks for the hints and suggestions!

[DeeCee 57]

did ya measure the thrust? How much?

[rv8ch]

Originally Posted by DeeCee 57

did ya measure the thrust? How much?

Not yet - I want to do some more tests to make sure that I can actually produce full power on the ground before the tests. Going to make a shroud today to improve cooling during the ground run. In only 2-3 mins #3 got up to 341F, so I'm sure a full power thrust test would get to 400F without a shroud.

[DeeCee 57]

just had a look at my data... YLL pulled factored 345.1kg @ 2570 static RPM, config see below.
Be sure your weight on strap is good enough

[Discus2b]

Nothing like sandblasting the car....
R

[Pilot135pd]

My RV-8 will raise the tail at power if the flaps are extended but if not I can go full power with stick all the way back and it'll stay set. Maybe I need more power(bigger engine)?