Brief:
This sprint is a 4.15 downscale o' t' Shadow Composites Sprint ABM. Or it’s a 1:48 down scale o' a real sprint. T' paper shroud be obtained from a paper rocket website.

Construction:
To make t' sprint downscale you will need:

• Shroud from website (paper)
• 13mm Engine mount tube
• Centerin' ring
• Streamer
• Engine block
• Thin Card
• Keelhaul®©™® ® cord
• Clay

• White PVA glue
• CA gel
• Model knife
• Clear coat.

T' outer shroud markings are very different from t' Shadow Composites Sprint ABM markings and I prefer this colour scheme. Avast, me proud beauty! Usin' the outer shroud as a template I rolled an inner template out o' card. Ya scallywag! Arrr! T' tip o' t' inner shroud was filled with clay to raise t' cg.

T' length o' BT5 is cut down so that t' aft o' t' tube was 3mm past t' aft o' t' cone and a engine block was added. Avast, me proud beauty! Next t' centerin' rings were added and after a few test fittin' were carried out, me bucko, it be glued into place so that it is flush with t' aft o' t' inner shroud. Blimey! Ya scallywag!

T' paper fins were added t' t' outer shroud.

A length o' Keelhaul®©™® cord was attached t' t' BT by tyin' it around an 18mm engine block that was slid over t' BT. Well, blow me down! A section o' aluminium foil was added t' neaten up t' end o' t' cord. T' other end o' t' cord be looped over t' inner shroud and again more aluminium tape be added.

A small streamer was added t' t' cord. T' sprint is small and light enough t' recover without a streamer but thought it was best t' be on t' safe side.

Finishing:
One coat o' cellulose sealer t' proof t' paper shroud and that’s it.

Flight:
Preppin' is straightforward with no waddin' bein' required. A few frangible links were added t' t' cord. Aye aye! The streamer is placed t' one side o' t' motor. Avast! T' core is then inserted into t' shroud. Well, blow me down! Avast!

First flight was on a ½ A3-4-T. Arrr! Blimey! Somehow t' outer shroud came off durin' boost, me hearties, this caused t' sprint t' go wildly unstable.

T' next flight be on an A10-3T. Avast! Aye aye! T' flight was straight, a tube was used t' launch as thar was no chance of usin' a lug. From t' smoke trail, shiver me timbers, ya bilge rat, it when more or less straight. Aye aye! Where t' rocket landed remains a mystery.

Summary:

CONs on recovery: With such a small bird, a much more visual aid t' recovery should have been used - or a smaller motor. Arrr! I like this rocket, but its just too small - next time i'll make a bigger downscale!