HP115 repairs

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19 Jul 2019 17:55 #16 by crash happy
Replied by crash happy on topic HP115 repairs
I don't suppose the stab just needs re- calibrating, does it?

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  • Quorneng
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19 Jul 2019 19:35 #17 by Quorneng
Replied by Quorneng on topic HP115 repairs
Well after a bit of investigation I have discovered two things.
1, The RH servo has a sticking gear (damaged tooth?). Not a good situation on a plane that only has two servos in total! It could easily explain the very erratic control. Being a narrow delta it has a very high roll rate so if for any reason the elevons do not follow each other exactly it rolls very rapidly.
2. The Aux 1 (flap) function was set to zero travel so no on/off function! I have no idea how this happened. Anyway it now works fine!

Now I have just got to 'extract' the built in servo and replace it.

crash happy
The HP115 uses a V2 Orange 6 ch stab rx. This was an early (2014!) version that had virtually nothing could be altered. It was quickly replaced by a much improved V3 and then V4. It is no longer available. :woohoo:
Thanks: THE BLACKBIRD, crash happy

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29 Jul 2019 00:29 #18 by Quorneng
Replied by Quorneng on topic HP115 repairs
All repaired and painted.

Weather forecast looks like no chance of a test flight any day soon!
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Thanks: THE BLACKBIRD, crash happy

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