Search found 93 matches

by Trevor Lyons
Sun Apr 18, 2010 6:48 pm
Forum: Hangar Chat
Topic: Tresspass on farm strips
Replies: 25
Views: 19692

Some more legal points: (i) "Volenti non fit injuria" (no injury is done to those who consent) is a complete defence to an allegation that a person has been injured through negligence; but the defendant must show that the claimant both knew of the risk, AND that he accepted the risk. (A parent can a...
by Trevor Lyons
Sun Apr 18, 2010 6:13 pm
Forum: Aircraft Construction & Maintenance
Topic: MidWest rotary engines
Replies: 12
Views: 15506

I think one or two have found their way into ARV Super2s. MidWest engines were indeed installed into three ARV Super2s, one of which is now in the USA. The UK aircraft are G-ORIX & G-BWBZ. PM me if you would like more information. Please can anyone tell me the TBO of a Midwest rotary power unit and...
by Trevor Lyons
Sun Apr 11, 2010 2:58 pm
Forum: Aircraft Construction & Maintenance
Topic: Alternative Power Systems
Replies: 33
Views: 31437

I see this (hybrid aircraft) option more as a 'worst of both worlds' than as a way forward at the moment If and when batteries become significantly lighter and more powerful, then electric aircraft will really take-off (pun intended). Until then, the hybrid has a lot to offer; and it should be poss...
by Trevor Lyons
Wed Apr 07, 2010 12:09 pm
Forum: Aircraft Construction & Maintenance
Topic: Alternative Power Systems
Replies: 33
Views: 31437

Alternative Power Systems

Let's start a thread on electric motor development. Major feature on alternative power systems coming up in the next couple of issues of LA. Here's that thread! Where to start? The known quantity is the internal combustion engine, whether diesel and spark-ignition, piston or rotary, 2 stroke, 4 str...
by Trevor Lyons
Wed Apr 07, 2010 11:08 am
Forum: Aircraft Construction & Maintenance
Topic: New Rotary Diesel
Replies: 11
Views: 12809

Simon Clifton wrote:Instead, let's start a thread on electric motor development.
OK! I'll call it "alternative power systems".
http://www.lightaircraftassociation.co. ... 591fb45b93
by Trevor Lyons
Mon Apr 05, 2010 3:43 pm
Forum: Hangar Chat
Topic: Standardised European Rules of the Air
Replies: 22
Views: 14857

A good start might be here: ... And lo, the head of the Transport and Tourism committee is a Brit. When contacting "your MEP", it is worth noting that there is no such thing! Originally MEPs were voted for on a constituency basis; and my former local MEP was quite helpful. However, under the preten...
by Trevor Lyons
Sun Apr 04, 2010 10:55 am
Forum: Hangar Chat
Topic: Standardised European Rules of the Air
Replies: 22
Views: 14857

I suspect the latter and share Johns concerns about our administrators here in the UK. I say administrators as government is no longer appropriate since we have become a region in the European Fascist state. Fascist State? A bit of absurd Daily Mail middle-Englandism rears its nasty head! Try not t...
by Trevor Lyons
Sat Apr 03, 2010 1:29 pm
Forum: Aircraft Construction & Maintenance
Topic: variable Prop
Replies: 12
Views: 12688

My a/c (S6-116 with Rotax 912) came with two blade WarpDrive prop. Ground adjustable. To be honest, having tried a few easy to try [FREE] small setting alterations off a grass strip, the only noticeable difference was the cruise revs. For climb and t/off I couldnt detect any real difference. My ARV...
by Trevor Lyons
Sat Apr 03, 2010 9:51 am
Forum: Aircraft Construction & Maintenance
Topic: variable Prop
Replies: 12
Views: 12688

Francis is in a difficult position these days with new developments like the V-prop. Whether we like it or not the LAA has become a quasi-regulatory body. ... So it is now down to the developer or some other interested body to submit engineering analysis to demonstrate fitness for purpose to the LA...
by Trevor Lyons
Thu Apr 01, 2010 12:09 pm
Forum: Aircraft Construction & Maintenance
Topic: New Rotary Diesel
Replies: 11
Views: 12809

Wankels ... are undeveloped and have a number of physical characteristics which do not make them ideal engines. Give it up and buy a Rotax! Some misunderstanding here! This thread is not about rotary vs pistons; it is about the optimum rotary engine for aircraft. Obviously, any competent firm can g...
by Trevor Lyons
Wed Mar 31, 2010 6:11 pm
Forum: Aircraft Construction & Maintenance
Topic: New Rotary Diesel
Replies: 11
Views: 12809

New Rotary Diesel

The April edition of "Light Aviation" reveals that Jim Cripps proposes to produce a home-built quasi-turbine diesel engine. Although a very interesting project, I think it may prove "a bridge too far". The quasi-turbine is said to be very smooth, but I understand that while it might work well as a p...
by Trevor Lyons
Wed Mar 31, 2010 5:11 pm
Forum: Aircraft Construction & Maintenance
Topic: variable Prop
Replies: 12
Views: 12688

In the March 2010 "Light Aviation", Francis Donald tests an Aeroprakt A22-LL Foxbat fitted with a rather expensive Airmaster VP prop. He said the prop allowed maximum power to be used at take-off, giving a short take-off and an impressive rate of climb. The Airmaster let the Rotax 912ULS run at 4,60...
by Trevor Lyons
Sun Feb 07, 2010 1:56 pm
Forum: Aircraft Construction & Maintenance
Topic: Heated handlebar grips
Replies: 3
Views: 3487

Heated handlebar grips

Having just fitted heated handlebar grips to my Yamaha TRX 850 motorcycle, it occurred to me that it might be an idea to fit some of these to the aircraft's control sticks to keep one's hands toasty in winter. They draw a maximum of 4 amps, and one can control the heat output. If your hands are warm...
by Trevor Lyons
Sun Nov 15, 2009 7:01 pm
Forum: Hangar Chat
Topic: A VW for the 21st Century
Replies: 61
Views: 42596

Another existing engine that has already proved itself is the Hewland, originally developed for Richard Noble's ARV Super2. The Hewland is an inverted in-line 3-cylinder water-cooled 2-stroke engine with a mechanical reduction gearbox. Originally, it produced about 77bhp, but has since been develope...
by Trevor Lyons
Sun Nov 15, 2009 5:20 pm
Forum: Aircraft Construction & Maintenance
Topic: tyre creeping on rim
Replies: 8
Views: 8117

Enduro and motocross (scramble) motorcycles have tubed tyres that run at very low pressures (e.g. 8 -12 psi) and riders use two methods to prevent tyre creep: The more common device is to use a tyre retainer shoe that clamps the tyre to the rim. From the outside it looks like a tyre valve. However, ...