Search found 78 matches

by JimCrawford
Fri Dec 15, 2017 4:48 pm
Forum: GENERAL CHAT
Topic: Nipper trailer
Replies: 6
Views: 6179

Re: Nipper trailer

That's the photo I saw many moons ago. It looks like the cover price of the mag has crept up a bit since then!

As it happens possible hangar space problems may force the re-incarnation of the Nipper Tipper to keep the floor area down.

Here's looking forward to 2018
Best Wishes
Jim
by JimCrawford
Thu Nov 02, 2017 5:45 pm
Forum: ENGINEERING AND MAINTENANCE
Topic: Nosewheel , tyre , inner tube wanted .
Replies: 2
Views: 2786

Re: Nosewheel , tyre , inner tube wanted .

My mk3, and the mk3 drawings, uses a 400 x 4 tyre and associated tube. This is a common size and aircraft tyres are readily available from the usual aircraft suppliers. TOST are the gold standard, and correspondingly expensive. I think the 'double rib' nosewheel tyre shown on the drawings is obsolet...
by JimCrawford
Sat Jan 14, 2017 10:40 pm
Forum: ENGINEERING AND MAINTENANCE
Topic: LeBurg ignition installation
Replies: 17
Views: 13187

Re: LeBurg ignition installation

Hi Neil, Thanks for the information. I initially assumed that the Leburg drawings would just be a copy of the VW flywheel groove and O-ring but became confused when it came to cut the groove. Two things still confuse me! The O-ring inside diameter is given as 56.5mm which cannot be correct as that m...
by JimCrawford
Sat Jan 14, 2017 3:04 pm
Forum: ENGINEERING AND MAINTENANCE
Topic: LeBurg ignition installation
Replies: 17
Views: 13187

Re: LeBurg ignition installation

Hi, and a happy New Year to Nipper forumites Can anybody tell me how they fitted the crankshaft O-ring seal in the Leburg crankshaft adapter? I've got this part on the lathe and cannot reconcile various dimensions given on the drawing which is supplied with the Leburg kit from Skycraft. The quoted O...
by JimCrawford
Sat Dec 17, 2016 11:30 am
Forum: ENGINEERING AND MAINTENANCE
Topic: LeBurg ignition installation
Replies: 17
Views: 13187

Re: LeBurg ignition installation

Hi Neil, Thanks for your post and apologies for the tardy reply but I have been smitten by the Christmas lurgy which hits in the week before Christmas when I still haven't been out to get presents or to post any cards! I am well into making the crankshaft adapters. I'm making a batch of three; one f...
by JimCrawford
Sun Oct 23, 2016 10:33 pm
Forum: ENGINEERING AND MAINTENANCE
Topic: LeBurg ignition installation
Replies: 17
Views: 13187

Re: LeBurg ignition installation

Hi all, I've had a bit of a merry dance with this Leburg installation so I thought I'd post an update to the forum. My intention is to write up the whole scheme for the LAA mag when it is finally an approved mod. I think that would be a good method of disseminating the information for use by anybody...
by JimCrawford
Wed May 18, 2016 10:18 pm
Forum: GENERAL CHAT
Topic: Large Pilot
Replies: 4
Views: 4789

Re: Large Pilot

Hi Monty, I have a Mk 3 Nipper with the extended rudder pedals and, as I'm quite small at 5ft 5in, I cannot reach them and will have to return them to standard! I believe you should have no size problems with the seat back and rudder pedal mods incorporated. Best bet would be to find one and sit in ...
by JimCrawford
Mon Jan 04, 2016 6:36 pm
Forum: ENGINEERING AND MAINTENANCE
Topic: LeBurg ignition installation
Replies: 17
Views: 13187

Re: LeBurg ignition installation

Hello Peter, Thanks for the reference to the LAA forum discussion, it was a useful read. I think the only significant problem will be to persuade LAA engineering to allow the 'no generator' installation, and I hope I can do that with a reasoned argument on the safety case. Indeed my safety case may ...
by JimCrawford
Mon Dec 28, 2015 2:42 pm
Forum: ENGINEERING AND MAINTENANCE
Topic: LeBurg ignition installation
Replies: 17
Views: 13187

Re: LeBurg ignition installation

Hi David, Thanks for the info - very useful. I was going to leave the chain driven mags on but thought the LeBurg more attractive and installation probably won't be any more effort than sorting out the mags, especially as I've already put all the wiring in place. I'm trying to avoid mission creep so...
by JimCrawford
Sat Dec 26, 2015 11:30 am
Forum: ENGINEERING AND MAINTENANCE
Topic: LeBurg ignition installation
Replies: 17
Views: 13187

LeBurg ignition installation

As the rework on GAVTC nears completion I've decided to fit the LeBurg ignition kit I've had stashed away for quite a while. The existing system is the classic 'Peacock' conversion and I will replace the Peacock magneto support plate with a similar one mounting the coils on it's forward face and the...
by JimCrawford
Wed Aug 12, 2015 11:10 am
Forum: GENERAL CHAT
Topic: Nipper trailer
Replies: 6
Views: 6179

Re: Nipper trailer

I remember seeing that Nipper trailer long ago in the PFA mag, it may even have been a cover photo. More recently it was the inspiration behind my design of a Nipper Tipper which was to allow my Nipper to be parked in an otherwise unusable part of the hangar at lower cost than the standard aircraft ...
by JimCrawford
Fri May 29, 2015 9:02 pm
Forum: ENGINEERING AND MAINTENANCE
Topic: Tipsy nipper Engine
Replies: 2
Views: 3408

Re: Tipsy nipper Engine

Hi Lennard,

I have a scanned copy of the Ardem Mk10 manual. It came with the document pack for my Nipper. You are welcome to a pdf copy if you pm me your email address.

Regards

Jim
by JimCrawford
Sat Jan 31, 2015 8:21 pm
Forum: ENGINEERING AND MAINTENANCE
Topic: wing clamping plates - dimensions
Replies: 8
Views: 6936

Re: wing clamping plates - dimensions

An update on the story so far: This issue has bounced backwards and forwards between me and John Tempest at the LAA, although I've had nothing since my last email on the 10th of January. The situation as it stands now is that I corrected my calculations with the result that the situation is eased so...
by JimCrawford
Thu Nov 13, 2014 8:36 pm
Forum: ENGINEERING AND MAINTENANCE
Topic: wing clamping plates - dimensions
Replies: 8
Views: 6936

Re: wing clamping plates - dimensions

This note describes the investigation I made into the wing bolt installation for the Tipsy Nipper aircraft, my curiosity having been sparked by the recent requirement to have the bolts tested or replaced by purpose made studs. I hope it fits into the user group format and apologise if parts get rath...
by JimCrawford
Thu Nov 13, 2014 4:10 pm
Forum: ENGINEERING AND MAINTENANCE
Topic: wing clamping plates - dimensions
Replies: 8
Views: 6936

Re: wing clamping plates - dimensions

Thanks for the numbers - very interesting. I hope to post the sums this evening after I've managed to get no.1 grand- daughter to bed. A rather hyper young lady. Very Happy

Jim

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