-
- Administrator
-
-
Before your membership becomes valid, you will receive an email that must be answered.
Please check your spam folder or this email.
Airfoil choice
- Antonia
- Posts: 140
- Joined: 17 Mar 2015, 22:30
- Location: Oxfordshire
Re: Airfoil choice
Thanks John, that would save a lot of head scratching for sure. Thanks for your reply Roo, if you could let me know your thicknesses at what station that would be great
-
- Posts: 28
- Joined: 06 Jan 2019, 09:09
- Location: Reigate
Re: Airfoil choice
I have seen some post with someone tuning what can be likened a cnc wire cutter. Something like that would enable a change in cord along the wing. Just an idea.
- Antonia
- Posts: 140
- Joined: 17 Mar 2015, 22:30
- Location: Oxfordshire
Re: Airfoil choice
Hi Lars, the wing cores are certainly going to be a challenge, I have a couple of ideas rattling around in my head
This is a coming closer to retirement project to ward off the ”biscuit crumbs and dribbling from the corner of my mouth moments”
I have an inquiry with someone who has a CNC hotwire cutter, just waiting for them to comeback to me to discuss further, failing that I’ll knock up a gravity feed system with a shed load of templates.
This is a coming closer to retirement project to ward off the ”biscuit crumbs and dribbling from the corner of my mouth moments”
I have an inquiry with someone who has a CNC hotwire cutter, just waiting for them to comeback to me to discuss further, failing that I’ll knock up a gravity feed system with a shed load of templates.
-
- Posts: 28
- Joined: 06 Jan 2019, 09:09
- Location: Reigate
Re: Airfoil choice
That sounds great and very interesting to follow.
-
- Posts: 557
- Joined: 18 Mar 2015, 20:12
- Location: Northamptonshire
Re: Airfoil choice
Hi had a look at my templates. Most of the wings is hq 2.5 12 the last 3 ft going to hq 2.5 10 . root for about 8in in has a modified section that is thicker for the wing joiner. The full size is the same I think.that's a 7 meter span The ritzy is to old school it's ok for a 4 meter glider with foam veneer or built up wing where you need a thickness for strength. It's a bit draggy compered to hq.. on my vintage gliders I use hq 3 .hqw.2.5 12 is the best foil I have found for glass gliders.
- Peter Balcombe
- Posts: 1399
- Joined: 18 Mar 2015, 10:13
- Location: Clevedon, North Somerset, U.K.
Re: Airfoil choice
The new 1/4 scale PT Salto wing uses HQW2.5/12 & seems to fly well according to Cliff.
Presumably he aerobated it as well as general flying at Sandhays.
Presumably he aerobated it as well as general flying at Sandhays.