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Sub 70

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erkki67

Well-Known Member
Joined
Feb 18, 2010
Messages
2,376
Location
Romont / Fribourg / Switzerland
Good evening

in the UK they have an interessting class the Sub70kg( 155lbs) including engine.

of course this is by far more restrictive that the FAR103, but it does exist.

now, what kind of 3-axis powered bird could fit this class, what comes in mind is the Hovey Whing Ding2, the C39B5ECA-9D8A-4B1A-B876-A88EF7452FEC.jpegTL1A, the Russian x-14,
0D4C96F9-3E36-457C-A00B-CA0429F4F66A.jpgThe PeeWee
FC181C38-F5F1-42D5-8DF1-2221BC66CDB3.jpegThis unknown British critter

the Zj-Viera


BDB986F3-308A-4133-93D7-52B8F191439F.jpg The e-12n
 

lr27

Well-Known Member
Joined
Nov 3, 2007
Messages
3,822
Easy Riser (Gotta admit I don't really know if it's 3 axis)
 

Aerowerx

Well-Known Member
Joined
Dec 1, 2011
Messages
5,679
Location
Marion, Ohio
AARGGH!!

Tried looking up the PeeWee, and all I get is Pee Wee Herman or the Cox 020 engine!
 

BBerson

Light Plane Philosopher
HBA Supporter
Joined
Dec 16, 2007
Messages
14,441
Location
Port Townsend WA
Does the category have wing area requirements?
The original CriCri was only 138 pounds with two engines.
 

erkki67

Well-Known Member
Joined
Feb 18, 2010
Messages
2,376
Location
Romont / Fribourg / Switzerland
The stall speed has to be no higher then 20 knts.

Single engine.

Single seat.

Without parachute it shall not weight more then 154lbs and with a parachute 165lbs including fuel.
 

Chilton

Well-Known Member
Joined
Jun 28, 2014
Messages
145
Location
Jersey, channel islands
I think you may be looking at old rules, the UK single seat deregulated class is now 300kg 660lb and 35knot stall speed. The sub 70kg class was back in the 1980s, and the whing ding was a popular solution then.
 

hole in the ground

Active Member
Joined
May 27, 2018
Messages
32
Location
UK
SSDR and sub 70kg are alive and kicking.

Sub 70 was intended to be for powered “wheeled” hang gliders, however the letter of the law allows 3-axis.

https://www.caa.co.uk/General-aviation/Pilot-licences/Self-propelled-hang-gliders-fitted-with-wheels/

SSDR frankly is just a subset of “standard” UK microlight regs which specify that single seat aircraft must be 300kg or less.

Edit: it’s interesting that you think it’s far more restrictive. UK regs are great because of their simplicity. If you could build a multi engined jet with retracts, flaps, wing sweep etc., make the stall speed and come in under the weight limit, you can.

for example there is someone who is currently flying a twin jet SSDR.
 
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