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Pat Lynch's blog
Posted by Pat Lynch | May 17, 2010 @ 10:33 PM | 12,202 Views
Well the first part of 2010 showed the slowest model-building pace of my short 'career'! Several health issues conspired to decrease my mobility, give me a big fright (still is) and other nasties. While none of these has stopped me modelling, I have had to slow down a bit and so most effort has gone into only two models - the BUSA 1/4 scale SPAD and Peter Rakes's 1/7 scale Bristol F2b 'Brisfit'. The SPAD is now structurally complete and has all its propulsion system installed and working - 8S 5000 LIPO, 100A ESC etc. This should be able to give 2000+ watts - 100W/lb but I'm hoping it will not be needed.

I took some time out to finish my Rake 1/6 SE5a - using an Eflite Power 25 on 4S it was a beauty She flies magnificently at 4 1/2 lb - great for simple aerobatics and very realistic in flight. Nice design. I had originally intended to make this a highly detailed machine in the manner of my earlier 36" version but decided to stick by the plans and get it flying. But she still looked the part. http://www.rcgroups.com/forums/showthread.php?t=595149
Finishing this model seemed a good idea to get me used to flying heavier models - this is my heaviest yet and a precurser to the Brisfit on board now.

At some stage I remembered having agreed to build a Coldberg kit of the Ultimate biplane for the son of a relative of a neighbor - for a small cash return of course. Since the kit had been kicking around for some time, I am assured it isn't a rush job. Good
Posted by Pat Lynch | May 17, 2010 @ 06:45 PM | 11,875 Views
The last months of 2009 were spent getting the big SPAD started and building Peter Rakes's delightful little BE12a. When Peter asked about another design I'd like - I suggested the Be12a as it appealed to me with its fragility and spidery nature! The model was a delight to build with very few problems although not, perhaps, a beginners model. It flew perfectly of course and in fairly still air, is a slow, stately performer. I love it
The build log is: http://www.rcgroups.com/forums/showthread.php?t=1083412
The start on the big SPAD needed a major reshuffle of my little workshop so I could fit around the model! It will certainly be a challenge (for me anyway). The BUSA kit is very comprehensive and my plan is to build it 'out of the box'. Unusual for me but 1/4 scale 20lb models are outside my experience.....

More soon.
Posted by Pat Lynch | Aug 15, 2009 @ 10:50 PM | 13,079 Views
A major step forward (or perhaps backward) today (Ausgust 16) was the disposal of some of my early and now non-flying models. Going to various keen local aeromodellers were my Ips Pfalz EIII, the 48" Fokker EIII, and the FE8 pusher. All are Peter Rake designs and their disposal is a downside to town-house living. Part of my problem is that I'm not crashing stuff these days. Maybe my rather conservative flying habits and concentration on stability and accuracy esp. when landing, is paying off My main interest is building scale models - I love the creative part and to fly something afterward is 'icing on the cake' really. Another possibility isthat since most of my models are prototype build for Peter Rake, or my own painful efforts at scale design and building, I want to preserve them for as long as possible and so take more care than one might normally - in any event, I finish up with far too many models for my small storage space!
More will have to go with some 'biggies' in the wings.....
Posted by Pat Lynch | Aug 15, 2009 @ 10:41 PM | 12,991 Views
After the stress (?) of finishing the Bison and getting the Powell build done, My major task was selcting my prize from the rcgroups build-off competition. It was a hard decision - my head said get something small and simple such as the Nieuport 11 Bebe - easy to electrify and easy to build. But my heart wanted something more spectacular and challenging so I chose the most complex 1/4 scale kit offered by BUSA - the SPAD XIII. The process of selecting the model, and associated discussion can be found here:


This will be a long term project - not only for the build but saving enough pennies to power the 20lb beast

Apart from the SPAD, Peter Rake, at my request, designed a 49" RAF BE12a - a rather fragile looking WWI 'fighter'. I want it to be a floater but still well detailed. It will sport a Park 450 motor and hopefully can be kept to around 25 - 30 oz AUW.
Peter has also designed a large Brisfit and I begged to be allowed to build this after the BE12. At 67" span, it will be a nice prelude to the SPAD
Another possible is the early Yakovlev 'Air 1' - One of the russian designer's first planes.
Posted by Pat Lynch | Aug 15, 2009 @ 10:22 PM | 13,087 Views
The first 6 months of 2009 were a frantic bid to build, fly, photograph and describe my AVRO 555 'Bison' for the build-off 3. The effort paid off and against stiff competition, won My prize for that effort was my choice of a Balsa USA 1/4 scale model. I selected their SPAD 13 kit - very ambitious for me and a great challenge to electrify. But more of that later.

With the Bison completed, I agreed to do another prototype build for Peter Rake - the little Powell PH-2 racer from 1925. It was a fun build and although 1/5 scale had a span of only 37". With a Park 480 motor, she is a great performer and is now part of my regular flying squadron.
The Powell build thread can be found at: http://www.rcgroups.com/forums/showt...5#post12097378
Posted by Pat Lynch | Dec 22, 2008 @ 04:01 PM | 13,161 Views
I was approached by Adrian Britton to build a prototype of the tiny 'Honeybee' - a real departure from my normal choices - it was not an easy build, with many new techniques but it was finished and flew quite well although not suited to my usual rough flying fields. Thanks for the opportunity Adrian Log at: http://www.rcgroups.com/forums/showthread.php?t=863375
I am also doing a conversion of Peter Rakes's 'Ryans Daughter' . It should finish as an Avian Monoplane racer. Progress has been slow fitting in around other projects. Build log: http://www.rcgroups.com/forums/showthread.php?t=711607
An entry in the fun-build is an RC conversion of an old FF model - a Walrus amphibian. Walrus log :http://www.rcgroups.com/forums/showthread.php?t=934575. This is on hold for a short time while my entry into build-off 3 takes shape - an AVRO 555 Bison. I dont think it has been modelled before - not rc anyway. http://www.rcgroups.com/forums/showthread.php?t=951308
and Youtube:
Avro Bison (2 min 23 sec)

Posted by Pat Lynch | May 26, 2008 @ 11:03 PM | 15,481 Views
After a lot of nervous knee-knocking, own-design Potez 'Dunkerque' was Finished, Fotographed, and Flown Almost without a hitch. She exhibited a little instability at full power while climbing out but is fine at 3/4 throttle or less. I'm very happy! Youtube :
Potez 621 Maiden Flight (1 min 49 sec)

After the stress of the Potez and Albatros builds, a little IPS Pfalz EI was built and flown in about a week. Absolutely no problems - a testament to a simple, straightforward design by Peter Rake.

Build thread for the little Pfalz is at : http://www.rcgroups.com/forums/showthread.php?t=863870
Posted by Pat Lynch | Apr 19, 2008 @ 04:06 AM | 14,875 Views
Things have been going rather slowly of late. Not so much lack of building but taking a long time about it The Bristol M1c started last year has flown beautifully (and still flies). Build thread : http://www.rcgroups.com/forums/showthread.php?t=724898

The Albatros DII started in 2007 has survived the nerve-wracking maiden. This model taxed my building skills a little but I'm very pleased with the result and, like most Rake designs, it flies beautifully.
The Albatros build log can be found at :

http://www.rcgroups.com/forums/showt...11#post8453007 and on Youtube at:
Albatros DII model maiden flight (2 min 2 sec)

The other project occupying most of my time since dec 2007 has been a 62" model of the French Potez 621 airliner. The model started life as an ugly Potez 540 bomber and got the ugly-duckling treatment after some less-than-kind jibes by fellow rcgroupers The result is a huge improvement I have to admit. This model is almost completed and also waiting for its first flight. It will hopefully be an entry in the rcgroups electric scale forum Build-Off.

Potez build log at : http://www.rcgroups.com/forums/showthread.php?t=779725
Posted by Pat Lynch | Nov 11, 2007 @ 08:43 PM | 14,600 Views
Another couple of Peter Rake models are in the pipeline (glutton for punishment) - the first of these is a small replica of the large replica of a Bristol M1c - WW1 monoplane. A 46" electric sport-scale model which should fly well. Almost completed - just a few details to go. Build log at:


The latest Rake job in progress is a 1/8 scale Albatros DII - 42" span and to stretch my skills - covered in 1/64" ply. Log at:

Posted by Pat Lynch | Aug 14, 2007 @ 10:55 PM | 14,339 Views
It has been a while since I posted anything here - I tried to cut two fingers off and moved house so that slowed me down a bit
But with a bit of prodding, I built another Peter Rake prototype - a 48" Farman Moustique light aircraft. Quite a simple build but with a lot of character - wing cables, that undercarriage etc. A product of the 1930s, it make an ideal simple scale model and flies well.
Build log for the Moustique:

Since I missed the 2006 build-off due to the above circumstances, I thought I'd do a design myself of an aircraft I have always liked the look of - the Henschel 129 Tank-buster. A quick and dirty build was decided on using Depron for skins and balsa where dictated by structural needs. The almost-end result is OK but would be better rebuilt in balsa and ply and maybe slightly bigger than the 48" span.
After a few teething problems mostly related to excessive control surface throws, the model flies great. A lot faster than Rake models but exciting!

HS129b Build Log:http://www.rcgroups.com/forums/showthread.php?t=686552 and Youtube at:
HS-129 Electric RC Model Aircraft (1 min 12 sec)

The current model just completed is another Rake prototype - the AVRO Arrowscout. An AV Roe racing plane from 1914 - no doubt a derviative or pre-decessor of things to come! 36" span, fairly easy to build and flies well. Build log at:http://www.rcgroups.com/forums/showthread.php?t=720548
Posted by Pat Lynch | Nov 15, 2006 @ 04:55 PM | 15,082 Views
I wanted a Trainer that was a bit less benign than the Telemaster and built a new design by Peter Rake (who else!) which was loosely base on the Ryan PT22 and similar 30s trainers. It is quite a large model designed for 500-600 sort of power levels - I am using an E-Flite 25. The maiden didn't go so well but it is now repaired and awaiting some courage from me. I thing I had CG marginally too rearward and the motor had slight up-thrust instead of neutral. Was very difficult to control in the air. In fact a later flight destroyed it! Most likely reason was that the aileron hinges had not been glued in

Ryans Daughter build thread:

The other model completed recently is a tiny IPS powered design also by Peter. The Duigan 1913 tractor Biplane. This 24" model is yet to be flown. It was great fun to build but at 6 1/8 oz AUW, will need a very calm morning! Update : It flies! Needs a little nose weight I think but otherwise floats around quite well.

Build thread for Duigan:

My 36" SE5a was recently sold to be used as a static display model, so with some of the proceeds, I bought a laser short kit from Charlie at Manzano for a bigger SE5a - a 54" version also by Peter Rake. It is almost exactly the same construction as the 36" so should be fairly easy - but HUGE!

The build is at:
Posted by Pat Lynch | Aug 22, 2006 @ 11:05 PM | 15,419 Views
To try and push my personal envelope a bit, I decided to build a simple twin. I chose an oldish design by Laddie Mikulasko - the Dornier DO-23. An aircraft from Germany's military buildup in the '30s, it is simple, has character, big wing area and should suit twin bell outrunners well. 60" span will give it some presence and it seems a stable design. She flies very well - slow and majestic just like an old bomber should. I mixed flap and seperate ailerons to give differential and flap function but have yet to decide if it is of benefit. Runs well on a single 1700 mA 3S LIPO for about 10 min. Only draws 5-10A at normal cruising. Great model - I want to do another multi now!

Build thread is at http://www.rcgroups.com/forums/showthread.php?t=511639
Youtube link:
Electric Dornier 23G RC model airplane (1 min 4 sec)

Another more complex build to stretch my skills a bit is an IC conversion of an old Gordon Whitehead design from the 70's - a 46" Hawker Hind/Demon. This is a very complex build for me and I'm being very cautious - luckily receiving help from these forums and from Gordon himself.
Still a way to go with the airframe completed.

Build thread - http://www.rcgroups.com/forums/showthread.php?t=547277
Posted by Pat Lynch | Mar 06, 2006 @ 11:50 PM | 16,103 Views
A cold 2006 winter saw quite a few projects completed and a few more started . Some of my flying compatriots have been a bit critical of my mad pace, but I try to reassure them that I'm cramming about 20 or 30 years of non-experience into a couple - a lot of catching up to do!

Finished over the last few months are four Peter Rake prototype builds - Baboon, Hanriot, SE5a and an FE8 WW1 pusher.

Building a never-flown-before prototype is a fair responsibility. Not only do you need to build as per plan or at least check any changes with the designer, the design and plan must be verified, the model finished in reasonable time AND it has to be test-flown. Even more importantly, it must be flown, debugged, photographed and written up without destroying it - makes one nervous and careful!

The Baboon was finished and 'Flew off the board' no problems - it is a big model for a 42" and flies as slow as a kite.

The 36" Hanriot had a few teething troubles with balance and power but with that corrected - flew fine.

The 36" SE5a is a well-proven design and no trouble was expected from it so I chose to try out a few fine-detailing ideas. It looks good and flies well.

The 43" FE8 was Peter Rake's first pusher design and we had some fun getting used to it but it is now one of my regular flying models and performs well.

Build thread for the SE5A is http://www.rcgroups.com/forums/showthread.php?t=512038

and the FE8 - http://www.rcgroups.com/forums/showthread.php?t=526847
Posted by Pat Lynch | Feb 28, 2006 @ 09:57 PM | 15,097 Views
I have always dreamed of flying a very detailed, accurate R/c model - I used to build 1/32 plastc kits and "super-detail" them, and had this desire to build a much bigger model and dress it up to the nines! With no flying skills whatever, this was a bit ambitious hence the preceeding models. As my flying ability has improved (a little), I feel more confident that I can get a plane into the air with less anxiety than 12 months ago but with only 35 or so hours of experience, have a loooooong way to go!

Currently, I'm building a couple of prototype designs for Peter Rake - an FK-24 "Baboon" biplane, and a small Hanriot monoplane from 1913. Easy builds but as they have never flown before - a bit of a responsibility!

Baboon: http://www.rcgroups.com/forums/showthread.php?t=481311
Hanriot: http://www.rcgroups.com/forums/showthread.php?t=502025

A 48" close-to-scale Bleriot XI is slowly progressing and being described on rcgroups electric scale forum. This is a long-term project and other models will be built to gain building and flying experience in the meantime.
Bleriot: http://www.rcgroups.com/forums/showthread.php?t=445162

Dream list? - like most scale modellers, it is endless and expanding :

A WWI pusher - DH2 etc
Something bigger - 54" SE5a or similar
Hawker Demon or related late Bipe
A simple twin - I've never made or flown a twin
An indoor scale electric machine
He-111 - a favourite
Supermarine Walrus - love it!
etc, etc.......

What I dont have much interest in:

Pitts Special
you get the picture.......

So many planes, so little time....Pat
Posted by Pat Lynch | Feb 22, 2006 @ 01:33 AM | 15,750 Views
I got hooked on scale after the Beaver and as is normal for me, jumped in at the deep end with an electric adaptation of a '50s Westland Lysander plan - a free-flight model so was light and should fly on its own almost. This was also my first real build thread on rcgroups. The Lizzie flew great first time with its marginal 480 can motor. It too, suffered from the dreaded stalling and after many rebuilds, was retired before it was a complete wreck! An unsuccessful WACO biplane was next and then began my love affair with Peter Rake's designs. First off was a 48" Eastbourne monoplane - still flies great. Then a 48" Fokker EIII Eindecker - my best flying model to this point. About here I decide the 45-50" span model suited me better than smaller and I still plan around that area. Somewhere in there, I adapted a frebie plan off the 'net for a Telemaster as a robust trainer - flew very well with a variety of brushed and brushless moters. Recently retired as I wanted the gear elsewhere.

Lysander: http://www.rcgroups.com/forums/showthread.php?t=384956
WACO: http://www.rcgroups.com/forums/showthread.php?t=408234
Eastbourne: http://www.rcgroups.com/forums/showthread.php?t=439592
Fokker EIII: http://www.rcgroups.com/forums/showthread.php?t=469726
Posted by Pat Lynch | Feb 22, 2006 @ 01:15 AM | 13,814 Views
I had a visit at Christmas 2004 from my brother-in-law who was an r/c plane enthusiast. While talking over a beer or three, he suggested that with my background in electronic engineering, and old ship models, I should have a go at electric planes! At 60 years of age, I'd never been at the controls of an R/C plane but as a private pilot for some years (20 years ago) I figured I knewthe basics of flight but had a lot to learn about r/c flying
First trials were with a GWS Pico-stick - unexciting but a good first plane. It lasted about a month and failed to avoid several trees and finally a very solid picket fence . Following a moderately successful Depron Cub (I learnt about CG) was a GWS E-starter - ailerons etc. That lasted about a month too but gave me my first ROG and more experience. A 40" depron Tiger Moth was my foray into scale - from a modified balsa plan. That model taught me about tip-stalling and the danger of slow flying That lasted two months. A 50" Depron Beaver was my next plan built model - my best to that point and a good trainer. It was retired after 3 months of hard work and harder landings.

Tiger Moth: http://www.rcgroups.com/forums/showthread.php?t=381695
Beaver: http://www.aerosquare.com/aerosquare...isitors_en.htm

An abridged thread on the Beaver at: