Chipmunk Windscreen Help Needed

A quick question for you Chippie owners…

The US Type Cert. states that the UK Chipmunk is a DH.C1, whereas the Canadian version is a DHC-1. However I see that the DHC-1 is used universally…

Which is correct?

Here is the link to the US Type Certificate UK version
http://www.airweb.faa.gov/Regulatory_and_Guidance_Library/rgMakeModel.nsf/0/7dd554b4ae89eedf862572c200485a95/$FILE/A44EU-Rev1.pdf

And the CN Version
http://www.airweb.faa.gov/Regulatory_and_Guidance_Library/rgMakeModel.nsf/0/51000fe9a2605e2885256738006616a8/$FILE/A26nm.pdf

Just a curiosity… thanks

BTW, Sometimes the links do not work the first time… not sure why exactly, it has been getting better as of late…

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While I am thinking about it, I have noticed that some pictures of UK Chipmunks apparently use a flat windshield, and there is no curve at the top… I am not sure if it was a series that used this windshield, or if it was someones attempt to make a replacement, without the little bubble section at the top. If someone could shed some light on this it would be appreciated…

John

Okfoz, Did you get my PM?

No, I did not, I will look..

DHC-1 Screen

About 14 years ago i purchased a front screen for one of our Chippys at Hus Bos. It was from a guy near Norton Barracks south of Worcester. I cant remember any details but it was good enough to fly! He made them!!!! Its still flying.

Hi Okfoz

I think that your post has answered my original question completely. The windscreens are the same for all the UK built Chippies, but I never realised that there was so much difference between the 2 variants.

many thanks and I’ll be in touch

John

Okfoz, Did you get my PM?

My intention was not to advertise, but to clarify the differences in the windshields (you say windscreens)

the windshield is not a free blown part, as the face of it is rather flat, and only at the top it has a “bubble” shape…

http://glapinc.com/DeHavilland/DHC-1/DH-C1-UK.htm

The link above shows the prices for colors etc… The parts are approved for only the 21, 22 & 22A only as apparently those are the only UK models approved here in the states… The other models it should fit (from reading the thread) should be the 10, and the 20, but I really do not even know that for sure, they have the same part number however… C1-FC281ND, Note that C1-FC805ND or C1-FC3A are assembly numbers, and only the windshield panel is available, the only difference between the two assemblies was apparently one was pre-drilled, the other was not.

I hope you find this helpful

PS, I should point out that the prices are US Dollars, and not CN Dollars as someone had indicated…

John

Looking at the advert from the link – $166 Canadian seems to be the price!

They are not incredibly complex -I should imagine if one of the Auster perspex ‘blowers’ was contacted they could knock out a few at a sensible price!

Thanks John

That is good news indeed. More by luck than judgement we were able to ascertain that the 2 weren’t interchangeable, fortunately without wasting any money. The price of a UK version would be very much appreciated.

regards

John

John,

Great post, thanks for clarifying that. Any idea of a price for a UK version ?

.

I’m hoping that someone out there can help me.

Several of us are looking to replace our Chipmunk front windscreens and availability is a bit of a problem. We’ve been told that this company:

http://www.glapinc.com/DeHavilland/DHC-1.htm

makes a windscreen that is suitable for Canadian Chipmunks, my/our question is are they compatible with the RAF T10? The Canadian Pt No is 03000ND whereas the T10 Pt No is C1-FC3A or C1-FC805A/ND, the company have been very helpful but are unable to verify if the 2 are interchangeable. None of our cockpits are airworthy if that helps.

Thanks in advance

John

This is John from Lakes Aero Products… I noticed this thread some time ago, and this is the first time I have been able to reply… Without making this into a sales pitch, I wanted to point out some differences between the windshields…

The windshields or windscreens are very similar but should not be considered interchangeable. The Most obvious difference visually is the bottom of the windshield where it meets the canopy. If you look at a CN chippie you will notice that the bottom of the windshield is more flat or horizontal looking, whereas the UK version comes more to a point. The CN chipmunk windshield is also narrower at the top and is more rounded, whereas the UK chipmunk windshield is more of an elliptical shape at the top and has almost a flat section, ultimately the UK version is probably about 2″ wider at the top of the windshield. The UK and is also a few inches longer at the bottom, even though it does not appear so in the pics below…
CN:
UK

I hope this helps…

p.s. they are both now available.

John Zofko
Great Lakes Aero Products.

Hi Paul,

I haven’t got immediate access to a screen, but was hoping that someone would be able to give me a quick answer. It would seem from the various posts that the 2 types are not that similar and we may have to try your suggestion at a later date.

cheers

dimensions

Info like the height of the screens is very pertinent so if anyone has a Canuck version in the UK that a height comparison can be made from?…..

If they are close in dimension, they may be usable for our purposes.

Can you take the dimensions of a British one and send it to the Canadian company to see if they are similar?
Paul

The last Canadian built Chipmunk in the U.K was G-AKDN which is now back in Canada.

Hi all,

Just to confirm….

DH Support have been contacted and were unable to assist due to lack of comparable design data between the 2 variants. None of the cockpits that the screens are needed for are airworthy and all are T10s, so paperwork is not an issue. Info like the height of the screens is very pertinent so if anyone has a Canuck version in the UK that a height comparison can be made from?…..

If they are close in dimension, they may be usable for our purposes.

cheers

John

…. I suspect that he and others are looking for a new screen for an ex-RAF model.

Indeed we are.

I’m not aware of a large cache of Canadian versions in the UK.

.

glapinc is Great Lakes Plastic and they make a windscreen for the Canadian Chippie. As John is asking about comparison with theUK-built part number, I suspect that he and others are looking for a new screen for an ex-RAF model.

I believe there is a height differnece between the British and Canadian windscreen assemblies.

But the way I interpreted the original post is that the Chipmunk in question may not be Canadian. 12jag has just found a link to a windscreen provider for the Canandian hood.

Can we ascertain the type of Chipmunk and whether it is for a flyable model so needs paperwork for the part?

DH Support have been asked this question before. The answer was that they don’t have any design data on the Canadian Chippie so cannot say if there are any differences. Given all the other differences between the two types of Chippie, it is possible that the UK variant has a different windscreen, perhaps because AP 970 at the time had more rigorous requirements to protect against birdstrike penetration.